| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 13 | |
| Breather. | |
| Piping run from a pressure | |
| - | |
| regulating device to the outdoors, designed to provide a refer | |
| ence to atmos- | |
| pheric pressure. If the device incorporates an integral pressure relief mechanism, a breather vent can also serve as | |
| a relief vent. | |
| Relief. | |
| Piping run from a pressure | |
| - | |
| regulating or | |
| pressure | |
| - | |
| limiting | |
| device to the outdoors, designed to provide | |
| for | |
| the safe venting of gas in the event of excessive pressure in the gas piping system. | |
| VENTED APPLIANCE CATEGORIES. | |
| Appliances that are categorized for the purpose of vent selection are clas- | |
| sified into the following four categories: | |
| Category I. | |
| An applia | |
| nce that operates with a nonpositive vent static pressure and with a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category II. | |
| An appliance that operates with a nonpositive vent static pressure and with a vent gas temperature | |
| that is capable of causing excessive condensate production in the vent. | |
| Category III. | |
| An appliance that operates with a positive vent static pressure and wi | |
| th a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category IV. | |
| An appliance that operates with a positive vent static pressure and with a vent gas temperature that | |
| is capable of causing excessive condensate production in th | |
| e vent. | |
| VENTED ROOM HEATER. | |
| A vented self | |
| - | |
| contained, | |
| free | |
| - | |
| standing | |
| , nonrecessed appliance for furnishing warm air | |
| to the space in which it is installed, directly from the heater without duct connections. | |
| VENTED WALL FURNACE. | |
| A self | |
| - | |
| contained vented applian | |
| ce complete with grilles or equivalent, designed for | |
| incorporation in or permanent attachment to the structure of a building, mobile home or travel trailer, and furnishing | |
| heated air circulated by gravity or by a fan directly into the space to be heated th | |
| rough openings in the casing. This | |
| definition shall exclude floor furnaces, unit heaters and central furnaces as herein defined. | |
| VENTING SYSTEM. | |
| A continuous open passageway from the flue collar or draft hood of an appliance to the | |
| outdoor | |
| atmosphere for t | |
| he purpose of removing flue or vent gases. A venting system is usually composed of a vent or a | |
| chimney and vent connector, if used, assembled to form the open passageway. | |
| Forced | |
| - | |
| draft venting system. | |
| A portion of a venting system using a fan or other mecha | |
| nical means to cause the | |
| removal of flue or vent gases under positive static vent pressure. | |
| Induced draft venting system. | |
| A portion of a venting system using a fan or other mechanical means to cause the | |
| removal of flue or vent gases under nonpositive stati | |
| c vent pressure. | |
| Mechanical draft venting system. | |
| A venting system designed to remove flue or vent gases by mechanical means, | |
| that consists of an induced draft portion under nonpositive static pressure or a forced draft portion under positive | |
| static pressu | |
| re. | |
| Natural draft venting system. | |
| A venting system designed to remove flue or vent gases under nonpositive static | |
| vent pressure entirely by natural draft. | |
| WALL HEATER, UNVENTED | |
| - | |
| TYPE. | |
| A room heater of the type designed for insertion in or attachment to a wa | |
| ll | |
| or partition. Such heater does not incorporate concealed venting arrangements in its construction and discharges all | |
| products of combustion through the front into the room being heated. | |
| WATER HEATER. | |
| Any heating appliance or equipment that heats potable | |
| water and supplies such water to the | |
| potable hot water distribution system. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 13 | |
| Breather. | |
| Piping run from a pressure | |
| - | |
| regulating device to the outdoors, designed to provide a refer | |
| ence to atmos- | |
| pheric pressure. If the device incorporates an integral pressure relief mechanism, a breather vent can also serve as | |
| a relief vent. | |
| Relief. | |
| Piping run from a pressure | |
| - | |
| regulating or | |
| pressure | |
| - | |
| limiting | |
| device to the outdoors, designed to provide | |
| for | |
| the safe venting of gas in the event of excessive pressure in the gas piping system. | |
| VENTED APPLIANCE CATEGORIES. | |
| Appliances that are categorized for the purpose of vent selection are clas- | |
| sified into the following four categories: | |
| Category I. | |
| An applia | |
| nce that operates with a nonpositive vent static pressure and with a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category II. | |
| An appliance that operates with a nonpositive vent static pressure and with a vent gas temperature | |
| that is capable of causing excessive condensate production in the vent. | |
| Category III. | |
| An appliance that operates with a positive vent static pressure and wi | |
| th a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category IV. | |
| An appliance that operates with a positive vent static pressure and with a vent gas temperature that | |
| is capable of causing excessive condensate production in th | |
| e vent. | |
| VENTED ROOM HEATER. | |
| A vented self | |
| - | |
| contained, | |
| free | |
| - | |
| standing | |
| , nonrecessed appliance for furnishing warm air | |
| to the space in which it is installed, directly from the heater without duct connections. | |
| VENTED WALL FURNACE. | |
| A self | |
| - | |
| contained vented applian | |
| ce complete with grilles or equivalent, designed for | |
| incorporation in or permanent attachment to the structure of a building, mobile home or travel trailer, and furnishing | |
| heated air circulated by gravity or by a fan directly into the space to be heated th | |
| rough openings in the casing. This | |
| definition shall exclude floor furnaces, unit heaters and central furnaces as herein defined. | |
| VENTING SYSTEM. | |
| A continuous open passageway from the flue collar or draft hood of an appliance to the | |
| outdoor | |
| atmosphere for t | |
| he purpose of removing flue or vent gases. A venting system is usually composed of a vent or a | |
| chimney and vent connector, if used, assembled to form the open passageway. | |
| Forced | |
| - | |
| draft venting system. | |
| A portion of a venting system using a fan or other mecha | |
| nical means to cause the | |
| removal of flue or vent gases under positive static vent pressure. | |
| Induced draft venting system. | |
| A portion of a venting system using a fan or other mechanical means to cause the | |
| removal of flue or vent gases under nonpositive stati | |
| c vent pressure. | |
| Mechanical draft venting system. | |
| A venting system designed to remove flue or vent gases by mechanical means, | |
| that consists of an induced draft portion under nonpositive static pressure or a forced draft portion under positive | |
| static pressu | |
| re. | |
| Natural draft venting system. | |
| A venting system designed to remove flue or vent gases under nonpositive static | |
| vent pressure entirely by natural draft. | |
| WALL HEATER, UNVENTED | |
| - | |
| TYPE. | |
| A room heater of the type designed for insertion in or attachment to a wa | |
| ll | |
| or partition. Such heater does not incorporate concealed venting arrangements in its construction and discharges all | |
| products of combustion through the front into the room being heated. | |
| WATER HEATER. | |
| Any heating appliance or equipment that heats potable | |
| water and supplies such water to the | |
| potable hot water distribution system. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 13 | |
| Breather. | |
| Piping run from a pressure | |
| - | |
| regulating device to the outdoors, designed to provide a refer | |
| ence to atmos- | |
| pheric pressure. If the device incorporates an integral pressure relief mechanism, a breather vent can also serve as | |
| a relief vent. | |
| Relief. | |
| Piping run from a pressure | |
| - | |
| regulating or | |
| pressure | |
| - | |
| limiting | |
| device to the outdoors, designed to provide | |
| for | |
| the safe venting of gas in the event of excessive pressure in the gas piping system. | |
| VENTED APPLIANCE CATEGORIES. | |
| Appliances that are categorized for the purpose of vent selection are clas- | |
| sified into the following four categories: | |
| Category I. | |
| An applia | |
| nce that operates with a nonpositive vent static pressure and with a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category II. | |
| An appliance that operates with a nonpositive vent static pressure and with a vent gas temperature | |
| that is capable of causing excessive condensate production in the vent. | |
| Category III. | |
| An appliance that operates with a positive vent static pressure and wi | |
| th a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category IV. | |
| An appliance that operates with a positive vent static pressure and with a vent gas temperature that | |
| is capable of causing excessive condensate production in th | |
| e vent. | |
| VENTED ROOM HEATER. | |
| A vented self | |
| - | |
| contained, | |
| free | |
| - | |
| standing | |
| , nonrecessed appliance for furnishing warm air | |
| to the space in which it is installed, directly from the heater without duct connections. | |
| VENTED WALL FURNACE. | |
| A self | |
| - | |
| contained vented applian | |
| ce complete with grilles or equivalent, designed for | |
| incorporation in or permanent attachment to the structure of a building, mobile home or travel trailer, and furnishing | |
| heated air circulated by gravity or by a fan directly into the space to be heated th | |
| rough openings in the casing. This | |
| definition shall exclude floor furnaces, unit heaters and central furnaces as herein defined. | |
| VENTING SYSTEM. | |
| A continuous open passageway from the flue collar or draft hood of an appliance to the | |
| outdoor | |
| atmosphere for t | |
| he purpose of removing flue or vent gases. A venting system is usually composed of a vent or a | |
| chimney and vent connector, if used, assembled to form the open passageway. | |
| Forced | |
| - | |
| draft venting system. | |
| A portion of a venting system using a fan or other mecha | |
| nical means to cause the | |
| removal of flue or vent gases under positive static vent pressure. | |
| Induced draft venting system. | |
| A portion of a venting system using a fan or other mechanical means to cause the | |
| removal of flue or vent gases under nonpositive stati | |
| c vent pressure. | |
| Mechanical draft venting system. | |
| A venting system designed to remove flue or vent gases by mechanical means, | |
| that consists of an induced draft portion under nonpositive static pressure or a forced draft portion under positive | |
| static pressu | |
| re. | |
| Natural draft venting system. | |
| A venting system designed to remove flue or vent gases under nonpositive static | |
| vent pressure entirely by natural draft. | |
| WALL HEATER, UNVENTED | |
| - | |
| TYPE. | |
| A room heater of the type designed for insertion in or attachment to a wa | |
| ll | |
| or partition. Such heater does not incorporate concealed venting arrangements in its construction and discharges all | |
| products of combustion through the front into the room being heated. | |
| WATER HEATER. | |
| Any heating appliance or equipment that heats potable | |
| water and supplies such water to the | |
| potable hot water distribution system. | |
| 2022 NEW YORK CITY FUEL GAS | |
| CODE | |
| 2 | |
| - | |
| 1 | |
| ‡‡‡ Chapter 2 was amended by | |
| Local Law | |
| 77 | |
| of 2023 | |
| . This law has an effective | |
| date of June 10, 2023. | |
| CHAPTER 2 | |
| DEFINITIONS | |
| SECTION FGC 201 | |
| GENERAL | |
| 201.1 Scope. | |
| Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code | |
| and standard, have the meanings indicated in this chapter. | |
| 201.2 Inter | |
| changeability. | |
| Words used in the present tense include the future; words in the masculine gender in- | |
| clude the feminine and neuter; the singular number includes the plural and the plural, the singular. | |
| 201.3 Terms defined in other codes. | |
| Where terms are not defined in this code and are defined in the | |
| New York City | |
| Electrical Code | |
| , | |
| New York City | |
| Building Code | |
| , | |
| New York City | |
| Fire Code | |
| , | |
| New York City | |
| Mechanical | |
| Code | |
| , | |
| New | |
| York City | |
| Plumbing Code | |
| , | |
| or the | |
| New York City Energy Conservation Code | |
| , | |
| such terms shall have meanings ascribed | |
| to them as in those codes. | |
| ‡‡‡ | |
| 201.3.1 Terms defined in the general administrative provisions. | |
| The following terms are defined in Sec- | |
| tion 28 | |
| - | |
| 101.5 of the | |
| Administrative Code | |
| : | |
| 1968 BUILDING CODE. | |
| 1968 OR PRIOR CODE | |
| BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). | |
| ACCEPTANCE OR ACCEPTED. | |
| ADDITION. | |
| ADMINISTRATIVE CODE. | |
| ALTERATION. | |
| APPROVAL OR APPROVED. | |
| APPROVED AGENCY. | |
| APPROVED FABRICATOR. | |
| APPROVED INSPECTION AGENCY. | |
| APPROVED TESTING AGENCY. | |
| ARCHITECT. | |
| BUILDING. | |
| CERTIFICATE OF COMPLIANCE. | |
| CHARTER. | |
| CITY. | |
| COMMISSIONER. | |
| CONSTRUCTION DOCUMENTS. | |
| DAY. | |
| DEFERRED SUBMITTAL. | |
| DEMOLITION. | |
| DEMOLITION, FULL. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 2 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DEMOLITION, PARTIAL. | |
| DEPARTMENT. | |
| ENGINEER. | |
| ENLARGEMENT. | |
| ENVIRONMENTAL CONTROL BOARD or ECB. | |
| EXISTING BUILDING OR STRUCTUR | |
| E. | |
| FABRICATED ITEM. | |
| FIRE PROTECTION PLAN. | |
| HEREAFTER. | |
| HERETOFORE. | |
| INSPECTION CERTIFICATE. | |
| INTERIM CERTIFICATE OF OCCUPANCY. | |
| LABEL. | |
| LABELED. | |
| LAND SURVEYOR. | |
| LANDSCAPE ARCHITECT. | |
| LETTER OF COMPLETION. | |
| LIMITED ALTERATION APPLICATION. | |
| LIMITED PLUMBING | |
| ALTERATIONS. | |
| LIMITED SPRINKLER ALTERATIONS. | |
| LIMITED STANDPIPE ALTERATIONS. | |
| LISTED. | |
| MAIN USE OR DOMINANT OCCUPANCY (OF A BUILDING). | |
| MANUFACTURER’S DESIGNATION. | |
| MARK. | |
| MATERIALS. | |
| OCCUPANCY. | |
| OWNER. | |
| PARTY WALL. | |
| PERMIT. | |
| PERSON. | |
| PREMISES. | |
| PRIOR CODE | |
| BUILDING. | |
| PROFESSIONAL CERTIFICATION. | |
| PROGRESS INSPECTION. | |
| PROJECT. | |
| REGISTERED DESIGN PROFESSIONAL. | |
| REGISTERED DESIGN PROFESSIONAL OF RECORD. | |
| REQUIRED. | |
| RETAINING WALL. | |
| SERVICE EQUIPMENT. | |
| SIGN | |
| - | |
| OFF. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 3 | |
| SINGLE ROOM OCCUPANCY MULTIPLE DWELLING. | |
| SPECIAL INSPECTION | |
| . | |
| SPECIAL INSPECTION AGENCY. | |
| SPECIAL INSPECTOR. | |
| STRUCTURE. | |
| SUBMITTAL DOCUMENTS. | |
| SUPERINTENDENT OF CONSTRUCTION (CONSTRUCTION SUPERINTENDENT). | |
| USE (USED). | |
| UTILITY COMPANY OR PUBLIC UTILITY COMPANY. | |
| UTILITY CORPORATION OR PUBLIC UTILITY | |
| CORPORATION. | |
| WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. | |
| WRITING (WRITTEN). | |
| WRITTEN NOTICE. | |
| ZONING RESOLUTION. | |
| 201.4 Terms not defined. | |
| Where terms are not defined through the methods authorized by this section, such terms | |
| shall have ordin | |
| arily accepted meanings such as the context implies. | |
| ‡‡‡ | |
| SECTION FGC 202 | |
| GENERAL DEFINITIONS | |
| ABNORMAL OPERATING CONDITION. | |
| A condition that may indicate a malfunction or a noncompliant com- | |
| ponent of a piping system or appliance. | |
| ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be reached by ready access or | |
| by a means that first requires the removal or movement of a panel, door or similar obstruction (see also “Ready | |
| access | |
| (to) | |
| ”). | |
| AIR CONDITIONER, GAS | |
| - | |
| FIRED. | |
| A gas | |
| - | |
| b | |
| urning, automatically operated appliance for supplying | |
| cooled or | |
| dehumidified air or chilled liquid. | |
| AIR CONDITIONING. | |
| The treatment of air so as to control simultaneously the temperature, humidity, cleanness | |
| and distribution of the air to meet the require | |
| ments of a conditioned space. | |
| AIR, EXHAUST. | |
| See “Exhaust.” | |
| AIR | |
| - | |
| HANDLING UNIT. | |
| A blower or fan used for the purpose of distributing supply air to a room, space or area. | |
| AIR, MAKEUP. | |
| Any combination of outdoor and transfer air intended | |
| to replace | |
| exhaust | |
| air | |
| and exfiltration. | |
| APPLIANCE. | |
| Any apparatus or device that | |
| utilizes a | |
| fuel or raw material to produce light, heat, power, refrigeration | |
| or air conditioning. | |
| APPLIANCE, AUTOMATICALLY CONTROLLED. | |
| Appliances equipped with an automatic b | |
| urner ignition and | |
| safety shutoff device and other automatic devices which accomplish complete turn | |
| - | |
| on and shutoff of the gas to the | |
| main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shutoff of | |
| the gas | |
| . | |
| APPLIANCE TYPE. | |
| Low | |
| - | |
| heat appliance (residential appliance). | |
| Any appliance in which the products of combustion at the point | |
| of entrance to the flue under normal operating conditions have a temperature of 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C) or less. | |
| Medium | |
| - | |
| heat appliance. | |
| Any | |
| appliance in which the products of combustion at the point of entrance to the flue | |
| under normal operating conditions have a temperature of more than 1,000 | |
| ° | |
| F (538 | |
| ° | |
| C | |
| ) or less | |
| but not greater than | |
| 2,000 | |
| ° | |
| F ( | |
| 1093 | |
| .3° | |
| C). | |
| DEFINITIONS | |
| 2 | |
| - | |
| 4 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| APPLIANCE, UNVENTED. | |
| An appliance designed or installed in such a manner that the products of combustion | |
| are not conveyed by a vent or chimney directly to the | |
| outdoor | |
| atmosphere. | |
| APPLIANCE, VENTED. | |
| An appliance designed and installed in such a manner that all of the products o | |
| f com- | |
| bustion are conveyed directly from the appliance to the outdoor atmosphere through an approved chimney or vent | |
| system. | |
| See also “VENTED APPLIANCE CATEGORIES.” | |
| ATMOSPHERIC PRESSURE. | |
| The pressure of the weight of air and water vapor on the surface of th | |
| e earth, ap- | |
| proximately 14.7 pounds per square inch (psi) (101 kPa absolute) at sea level. | |
| BAFFLE. | |
| An object placed in an appliance to change the direction of or retard the flow of air, air | |
| - | |
| gas mixtures or | |
| flue gases. | |
| BAROMETRIC DRAFT REGULATOR. | |
| A balanced damper device attached to a chimney, vent connector, | |
| breeching or flue gas manifold to protect combustion appliances by controlling chimney draft. A double | |
| - | |
| acting | |
| barometric draft regulator is one | |
| in which the | |
| balancing damper is free to move in | |
| either direction to protect | |
| combustion appliances from both excessive draft and backdraft. | |
| BOILER, HIGH | |
| - | |
| PRESSURE. | |
| An appliance for supplying steam or hot water that, for a steam boiler, operates | |
| at a pressure of more than 15 psig ( | |
| 103.4 | |
| kPa gauge), and for a hot water boiler, operates at a pressure exceeding | |
| 160 psig ( | |
| 1103 | |
| kPa gauge) or at a temperature exceeding 250° | |
| F ( | |
| 121.1 | |
| °C). | |
| BOILER, LOW | |
| - | |
| PRESSURE. | |
| A self | |
| - | |
| contained appliance for supplying steam or hot water | |
| as follows: | |
| Hot water heating boiler. | |
| A boiler in which no steam is generated, from which hot water is circulated for | |
| heating purposes and then returned to | |
| the boiler, and that operates at water pressures not exceeding 160 pounds | |
| per square inch gauge (psig) ( | |
| 1103 | |
| kPa gauge) and at water temperatures not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or | |
| near the boiler outlet. | |
| Hot water supply boiler. | |
| A boiler, completely fill | |
| ed with water, which furnishes hot water to be used externally | |
| to itself, and that operates at water pressures not exceeding 160 psig ( | |
| 1103 | |
| kPa gauge) and at water temperatures | |
| not exceeding 250°F ( | |
| 121 | |
| .1 | |
| ° | |
| C) at or near the boiler outlet. | |
| Steam heating boile | |
| r. | |
| A boiler in which steam is generated and that operates at a steam pressure not exceeding | |
| 15 psig ( | |
| 103.4 | |
| kPa gauge). | |
| BRANCH. | |
| A section of gas piping downstream from a riser, leading to appliances or equipment on no more than two | |
| consecutive floors. | |
| BRAZING. | |
| A metal | |
| - | |
| joining process wherein coalescence is produced by the use of a nonferrous filler metal having | |
| a melting point above 1,000°F ( | |
| 537.8 | |
| ° | |
| C), but lower than that of the base metal being joined. The filler material is | |
| distributed between the clos | |
| ely fitted surfaces of the joint by capillary action. | |
| BROILER. | |
| A general term including salamanders, barbecues and other appliances cooking primarily by radiated | |
| heat, excepting toasters. | |
| BTU. | |
| Abbreviation for British thermal unit, which is the quantity of | |
| heat required to raise the temperature of 1 pound | |
| (454 g) of water 1°F ( | |
| - | |
| 17.2 | |
| ° | |
| C) (1 Btu = 1055 J). | |
| BURNER. | |
| A device for the final conveyance of the gas, or a mixture of gas and air, to the combustion zone. | |
| Induced draft. | |
| A burner that depends on | |
| draft induced by a fan that is an integral part of the appliance and is | |
| located downstream from the burner. | |
| Power. | |
| A burner in which gas, air or both are supplied at pressures exceeding, for gas, the line pressure, and for | |
| air, atmospheric pressure, with t | |
| his added pressure being applied at the burner. | |
| CHIMNEY. | |
| A primarily vertical structure containing one or more flues | |
| used to remove hot gases from burning | |
| fuel, refuse, or industrial processes | |
| from a fuel | |
| - | |
| burning appliance to the | |
| outdoor | |
| atmosphere. | |
| Factor | |
| y | |
| - | |
| built chimney. | |
| A listed and labeled chimney composed of factory | |
| - | |
| made components, assembled in the | |
| field in accordance with manufacturer’s instructions and the conditions of the listing. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 5 | |
| Masonry chimney. | |
| A field | |
| - | |
| constructed chimney composed of solid mason | |
| ry units, bricks, stones or concrete. | |
| Metal chimney. | |
| A field | |
| - | |
| constructed chimney | |
| composed | |
| of metal. | |
| CLEARANCE. | |
| The minimum distance through air measured between the heat | |
| - | |
| producing surface of the mechanical | |
| appliance, device or equipment and the surface of | |
| the combustible material or assembly. | |
| CLOTHES DRYER. | |
| An appliance used to dry wet laundry by means of heated air. Dryer classifications are as follows: | |
| Type 1. | |
| Factory | |
| - | |
| built package, multiple production. Primarily used in family living environment. Usually the | |
| smallest unit physically and in function output. | |
| Type 2. | |
| Factory | |
| - | |
| built package, multiple production. Used in business with direct intercourse of the functi | |
| on with | |
| the public. Not designed for use in individual family living environment. | |
| COMBUSTIBLE ASSEMBLY. | |
| Wall, floor, ceiling or other assembly constructed of one or more component mate- | |
| rials that are not defined as noncombustible. | |
| COMBUSTIBLE MATERIAL. | |
| Any | |
| material not defined as noncombustible. | |
| COMBUSTION. | |
| In the context of this code, refers to the rapid oxidation of fuel accompanied by the production of | |
| heat or heat and light. | |
| COMBUSTION AIR | |
| . | |
| Air necessary for complete combustion of a fuel, including theor | |
| etical air and excess air. | |
| COMBUSTION CHAMBER. | |
| The portion of an appliance within which combustion occurs. | |
| COMBUSTION PRODUCTS. | |
| Constituents resulting from the combustion of a fuel with the oxygen of the air, | |
| including inert gases, but excluding | |
| excess air. | |
| CONCEALED LOCATION. | |
| A location that cannot be accessed without damaging permanent parts of the building | |
| structure or | |
| finished | |
| surface. Spaces above, below or behind readily removable panels or doors shall not be considered | |
| as concealed. | |
| CONCEAL | |
| ED PIPING. | |
| Piping that is located in a concealed location (see “Concealed | |
| location | |
| ”). | |
| CONDENSATE. | |
| The liquid that condenses from a gas (including flue gas) caused by a reduction in temperature or | |
| increase in pressure. | |
| CONNECTOR, APPLIANCE (Fuel). | |
| Rigid metallic pipe and fittings or a listed and labeled device that connects an | |
| appliance to the gas piping system. | |
| CONNECTOR, CHIMNEY OR VENT. | |
| The pipe that connects an appliance to a chimney or vent. | |
| CONTROL. | |
| A manual or automatic device designed to re | |
| gulate the gas, air, water or electrical supply to, or operation | |
| of, a mechanical system. | |
| CONVERSION BURNER. | |
| A unit consisting of a burner and its controls for installation in an appliance originally uti- | |
| lizing another fuel. | |
| COUNTER APPLIANCES. | |
| Appliances s | |
| uch as coffee brewers and coffee urns and any appurtenant water | |
| - | |
| heating ap- | |
| pliance, food and dish warmers, hot plates, griddles, waffle bakers and other appliances designed for installation on or in a | |
| counter. | |
| CUBIC FOOT. | |
| The amount of gas that occupies 1 c | |
| ubic foot (0.02832 m | |
| 3 | |
| ) when at a temperature of 60°F ( | |
| 15.6 | |
| ° | |
| C), | |
| saturated with water vapor and under a pressure equivalent to that of 30 inches of mercury (101 kPa). | |
| DAMPER. | |
| A manually or automatically controlled device to regulate draft or the rate of | |
| flow of air or combustion | |
| gases. | |
| DECORATIVE APPLIANCE, VENTED. | |
| A vented appliance wherein the primary function lies in the aesthetic effect | |
| of the flames. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 6 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES. | |
| A vented appliance de- | |
| signed for installa | |
| tion within the fire chamber of a vented fireplace, wherein the primary function lies in the aesthetic | |
| effect of the flames. | |
| DECORATIVE SHROUD. | |
| A | |
| listed, | |
| partial, noncombustible enclosure for aesthetic purposes that is installed at the | |
| termination of a ven | |
| ting system that surrounds or conceals | |
| a factory | |
| - | |
| built chimney system | |
| or vent cap. | |
| DEMAND. | |
| The maximum amount of gas input required per unit of time, usually expressed in cubic feet per hour | |
| (1 | |
| ft | |
| 3 | |
| = 0.0283 m | |
| 3 | |
| ), | |
| or Btu/h (1 Btu/h = 0.2931 W). | |
| DILUTION AIR. | |
| Air that is introduced into a draft hood and is mixed with the flue gases. | |
| DIRECT | |
| - | |
| VENT APPLIANCES. | |
| Appliances that are constructed and installed so that all air for combustion is | |
| derived directly from the | |
| outdo | |
| or | |
| atmosphere and all flue gases are discharged directly to the | |
| outdoor | |
| atmosphere. | |
| DRAFT. | |
| The pressure difference existing between the appliance or any component part and the atmosphere, that | |
| causes a continuous flow of air and products of combustion thro | |
| ugh the gas passages of the appliance to the atmos- | |
| phere. | |
| Induced | |
| draft. | |
| The pressure difference created by the action of a fan, blower or ejector, that is located between | |
| the appliance and the chimney or vent termination. | |
| Natural draft. | |
| The | |
| pressure difference created by a vent or chimney because of its height, and the temperature | |
| difference between the flue gases and the atmosphere. | |
| DRAFT HOOD. | |
| A nonadjustable device built into an appliance, or made as part of the vent connector from an | |
| appl | |
| iance, that is designed to (1) provide for ready escape of the flue gases from the appliance in the event of no | |
| draft, backdraft or stoppage beyond the draft hood, (2) prevent a backdraft from entering the appliance, and (3) | |
| neutralize the effect of stack | |
| action of the chimney or gas vent upon operation of the appliance. | |
| DRAFT REGULATOR. | |
| A device that functions to maintain a desired draft in the appliance by automatically | |
| reducing the draft to the desired value. | |
| DRIP. | |
| A nipple and cap | |
| placed at a low point | |
| in a system of piping to collect condensate and from which the conden- | |
| sate is removable. | |
| DRY GAS. | |
| A gas having a moisture and hydrocarbon dew point below any normal temperature to which the gas | |
| piping is exposed. | |
| DUCT FURNACE. | |
| A warm | |
| - | |
| air furnace | |
| or heater | |
| n | |
| ormally installed in an air distribution duct to supply warm air | |
| for heating. This definition shall apply only to a warm | |
| - | |
| air heating appliance | |
| that, for | |
| air circulation, | |
| depends | |
| on a | |
| blower not furnished as part of the furnace. | |
| DUCT SYSTEM. | |
| A continuous pa | |
| ssageway for the transmission of air that, in addition to ducts, includes duct fittings, | |
| dampers, plenums, fans and accessory air | |
| - | |
| handling equipment | |
| and appliances | |
| . | |
| DWELLING. | |
| A building or structure which is occupied in whole or in part as the home, residence or sleeping place | |
| of one or more families. | |
| DWELLING UNIT. | |
| A single unit | |
| consisting of one or more habitable rooms | |
| and | |
| occupied or arranged to be occupied | |
| as a unit separa | |
| te from all other units within a dwelling. | |
| EQUIPMENT. | |
| Any apparatus or device that delivers gas as a fuel or raw material to an appliance or vents | |
| combustion products from an appliance, including but not limited to control devices, pressure regulators, val | |
| ves, | |
| appliance appurtenances, gas connectors, or power exhausters used in connections to appliances. | |
| EXCESS FLOW VALVE (EFV). | |
| A safety shut | |
| - | |
| off | |
| valve designed to activate | |
| to interrupt the flow of gas | |
| when the | |
| fuel gas passing through it exceeds a prescribe | |
| d flow rate. | |
| Installed where specifically required by code or utility | |
| company. | |
| EXHAUST. | |
| Air being removed from any space, appliance or piece of equipment conveyed directly to the atmosphere | |
| by means of openings or ducts. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 7 | |
| EXTERIOR MASONRY CHIMNEYS. | |
| Masonry chimneys exposed to the outdoors on one or more sides below the | |
| roof line. | |
| FIREPLACE. | |
| An assembly consisting of a hearth | |
| and fire chamber of noncombustible material and provided with a | |
| chimney | |
| , for use with solid fuels. | |
| Factory | |
| - | |
| built | |
| fireplace. | |
| A listed and labeled | |
| fireplace | |
| and chimney system | |
| composed of factory | |
| - | |
| made | |
| compo- | |
| nents | |
| , and | |
| assembled in | |
| the field in | |
| accordance with | |
| manufacturer’s instructions and | |
| the | |
| conditions | |
| of | |
| the | |
| listing. | |
| Masonry fireplace. | |
| A hearth and fire chamber of s | |
| olid masonry units such as bricks, stones, listed masonry units | |
| or reinforced concrete, provided with a suitable chimney. | |
| FLAME SAFEGUARD. | |
| A device that will automatically shut off the fuel supply to a main burner or group of | |
| burners when the means of igni | |
| tion of such burners becomes inoperative, and when flame failure occurs on the | |
| burner or group of burners. | |
| FLASHBACK ARRESTOR CHECK VALVE. | |
| A device that will prevent the backflow of one gas into the supply | |
| system of another gas and prevent the passage of flame into the gas supply system. | |
| FLOOR FURNACE. | |
| A completely self | |
| - | |
| contained furnace suspended from the floor of the space being heated, | |
| ta | |
| king air for combustion from outside such space and with means for observing flames and lighting the appliance | |
| from such space. | |
| Fan type. | |
| A floor furnace equipped with a fan | |
| that | |
| provides the primary means for circulating air. | |
| Gravity type. | |
| A floor furnace | |
| depending primarily on circulation of air by gravity. This classification shall also | |
| include floor furnaces equipped with booster | |
| - | |
| type fans | |
| that | |
| do not materially restrict free circulation of air by | |
| gravity flow when such fans are not in operation. | |
| FLUE. | |
| A passageway within a chimney or vent through which gaseous combustion products pass. | |
| FLUE, APPLIANCE. | |
| The passage(s) within an appliance through which combustion products pass from the | |
| combustion chamber of the appliance to the draft hood inlet | |
| opening on an appliance equipped with a draft hood | |
| or to the outlet of the appliance on an appliance not equipped with a draft hood. | |
| FLUE COLLAR. | |
| That portion of an appliance designed for the attachment of a draft hood, vent connector or venting | |
| system. | |
| FL | |
| UE GASES. | |
| Products of combustion plus excess air in | |
| fireplace and | |
| appliance flues or heat exchangers. | |
| FLUE LINER (LINING). | |
| A system or material used to form the inside surface of a flue in a chimney or vent, for | |
| the purpose of protecting the surrounding st | |
| ructure from the effects of combustion products and for conveying | |
| combustion products without leakage | |
| into | |
| the atmosphere. | |
| FUEL GAS. | |
| A natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases. | |
| FURNACE. | |
| A completely self | |
| - | |
| contained h | |
| eating unit that is designed to supply heated air to spaces remote from or | |
| adjacent to the appliance location. | |
| FURNACE, CENTRAL. | |
| A self | |
| - | |
| contained appliance for heating air by transfer of heat of combustion through metal | |
| to the air, and designed to supply h | |
| eated air through ducts to spaces remote from or adjacent to the appliance location. | |
| Forced | |
| - | |
| air type. | |
| A central furnace equipped with a fan or blower | |
| that | |
| provides the primary means for circulation | |
| of air. | |
| FURNACE PLENUM. | |
| An air compartment or chamber to which one or more ducts are connected and | |
| that | |
| forms | |
| part of an air distribution system. | |
| GAS CONVENIENCE OUTLET. | |
| A permanently mounted, manually operated device that provides the means | |
| for connecting an appliance to, and d | |
| isconnecting an appliance from, the supply piping. The device includes an | |
| integral, manually operated valve with a nondisplaceable valve member and is designed so that disconnection of | |
| an appliance only occurs when the manually operated valve is in the clo | |
| sed position. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 8 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| GAS PIPING. | |
| An installation of pipe, valves or fittings installed on a premises or in a building and utilized to convey | |
| fuel gas. | |
| GAS UTILIZATION EQUIPMENT. | |
| An appliance that utilizes gas as a fuel or raw material or both. | |
| HAZARDOUS LOCATION. | |
| Any location considered to be a fire hazard for flammable vapors, dust, combustible | |
| fibers or other highly combustible substances. The location is not necessarily categorized in the | |
| New York City | |
| Building Code | |
| as a | |
| high | |
| - | |
| hazard | |
| group classification. | |
| HOUSE | |
| PIPING. | |
| See “Piping system.” | |
| HYDROGEN FUEL GAS ROOM. | |
| A separately ventilated, fully enclosed room designed to exclusively house the | |
| generation of gaseous hydrogen for immediate on | |
| - | |
| premises use in indoor fuel cells or other energy production process, | |
| and incidental indoor storage of gaseous hydrogen. A hydro | |
| gen fuel gas room is not intended to house the production | |
| or dispensing of hydrogen motor fuel. | |
| IGNITION SOURCE. | |
| A flame, spark or hot surface capable of igniting flammable vapors or fumes. Such sources | |
| include appliance burners, burner ignitors, and elect | |
| rical switching devices. | |
| INCINERATOR. | |
| An appliance used to reduce combustible refuse material to ashes and | |
| that | |
| is manufactured, sold | |
| and installed as a complete unit. | |
| INDUSTRIAL AIR HEATERS, | |
| NONRECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the product | |
| s | |
| of combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating only outdoor air. | |
| INDUSTRIAL AIR HEATERS, | |
| RECIRCULATING | |
| DIRECT | |
| - | |
| FIRED | |
| . | |
| A heater in which all the pro | |
| ducts of | |
| combustion generated by the burners are released into the air stream being heated. The purpose of the heater is to | |
| offset building heat loss by heating outdoor air, and, if applicable, indoor air. | |
| INFRARED RADIANT HEATER. | |
| A heater that directs a s | |
| ubstantial amount of its energy output in the form of | |
| infrared radiant energy into the area to be heated. Such heaters are of either the vented or unvented type. | |
| INTEGRAL VENT APPLIANCES. | |
| Appliances designed for outdoor installation that have built | |
| - | |
| in natu | |
| ral or me- | |
| chanical venting means and are constructed and installed so that all air for combustion is derived from the outdoor | |
| atmosphere and all flue gases are discharged to the outdoor atmosphere through an integral vent termination. | |
| INTERLOCK. | |
| A device actuated by another device with which it is directly associated, to govern succeeding oper- | |
| ations of the same or allied devices. A circuit in which a given action cannot occur until after one or more other actions | |
| have taken place. | |
| JOINT, FLANGED. | |
| A joint made by bolting together a pair of flanged ends. | |
| JOINT, FLARED. | |
| A metal | |
| - | |
| to | |
| - | |
| metal compression joint in which a conical spread is made on the end of a tube that is | |
| compressed by a flare nut against a mating flare. | |
| JOINT, MECHANICAL. | |
| A general form o | |
| f gas | |
| - | |
| tight joints obtained by the joining of metal parts through a | |
| positive | |
| - | |
| holding | |
| mechanical construction, such as | |
| press joint, | |
| flanged joint, threaded joint, flared joint or compression joint. | |
| JOINT, PLASTIC ADHESIVE. | |
| A joint made in thermoset plastic | |
| piping by the use of an adhesive substance | |
| that | |
| forms a continuous bond between the mating surfaces without dissolving either one of them. | |
| JOINT, PLASTIC HEAT FUSION. | |
| A joint made in thermoplastic piping by heating the parts sufficiently to permit | |
| fusion o | |
| f the materials when the parts are pressed together. | |
| JOINT, WELDED. | |
| A gas | |
| - | |
| tight joint obtained by the joining of metal parts in molten state. | |
| LEAK CHECK. | |
| An operation performed on a gas piping system to verify that the system does not leak. | |
| Leakage | |
| checks | |
| are intended to discover open outlets, defective appliance connection and defects that have developed since | |
| the initial installation, normally performed after pressure testing. | |
| LIMIT CONTROL. | |
| A device responsive to changes in pressure, temperature or level for turning on, shutting off or | |
| throttling the gas supply to an appliance. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 9 | |
| LIQUEFIED PETROLEUM GAS or LPG (LP | |
| - | |
| GAS). | |
| Liquefied petroleum gas composed predominately of pro- | |
| pane, propylene, buta | |
| nes or butylenes, or mixtures thereof that is gaseous under normal atmospheric conditions, but | |
| is capable of being liquefied under moderate pressure at normal temperatures. | |
| LIVING SPACE. | |
| Space within a dwelling unit utilized for living, sleeping, eating, c | |
| ooking, bathing, washing and | |
| sanitation purposes. | |
| LOG LIGHTER. | |
| A manually operated solid fuel ignition appliance for installation in a vented solid fuel | |
| - | |
| burning | |
| fireplace. | |
| MAIN BURNER. | |
| A device or group of devices essentially forming an integral unit for t | |
| he final conveyance of gas | |
| or a mixture of gas and air to the combustion zone, and | |
| in | |
| which combustion takes place to accomplish the function | |
| for which the appliance is designed. | |
| METER. | |
| The instrument installed to measure the volume of gas delivered throug | |
| h it. | |
| NPS. | |
| An abbreviation for “Nominal pipe size.” | |
| NONCOMBUSTIBLE MATERIALS. | |
| Materials that, when tested in accordance with ASTM E 136, have at least | |
| three of four specimens tested meeting all of the following criteria: | |
| 1. | |
| The recorded temperature of the | |
| surface and interior thermocouples shall not at any time during the test rise | |
| more than 54ºF | |
| (12.2ºC) | |
| above the furnace temperature at the beginning of the test. | |
| 2. | |
| There shall not be flaming from the specimen after the first 30 seconds. | |
| 3. | |
| If the weight l | |
| oss of the specimen during testing exceeds 50 percent, the recorded temperature of the surface and | |
| interior thermocouples shall not at any time during the test rise above the furnace air temperature at the beginning | |
| of the test, and there shall not be flam | |
| ing of the specimen. | |
| OFFSET (VENT). | |
| A combination of approved bends that makes two changes in direction bringing one section of the | |
| vent out of line but into a line parallel with the other section. | |
| ORIFICE. | |
| The opening in a cap, spud or other device whereb | |
| y the flow of gas is limited and through which the gas | |
| is discharged to the burner. | |
| OUTLET. | |
| The point at which a gas | |
| - | |
| fired appliance connects to the gas piping system. | |
| OXYGEN DEPLETION SAFETY SHUTOFF SYSTEM (ODS). | |
| A system designed to act to shut off the g | |
| as sup- | |
| ply to the main and pilot burners if the oxygen in the surrounding atmosphere is reduced below a predetermined level. | |
| PILOT. | |
| A small flame that is utilized to ignite the gas at the main burner or burners. | |
| PIPING. | |
| Where used in this code, “piping” refers to either pipe or tubing, or both. | |
| Pipe. | |
| A rigid conduit of iron, steel, copper, brass or plastic. | |
| Tubing. | |
| Semirigid conduit of copper, aluminum, plastic or steel. | |
| PIPING SYSTEM. | |
| All fuel piping, valves and fitting | |
| s from the outlet of the point of delivery to the outlets of the | |
| appliance shutoff valves. | |
| PLASTIC, THERMOPLASTIC. | |
| A plastic that is capable of being repeatedly softened by increase of temperature | |
| and hardened by decrease of temperature. | |
| POINT OF | |
| DELIVERY. | |
| For natural gas systems, the point of delivery is the outlet of the service meter assembly | |
| or the outlet of the service regulator or service shutoff valve where a meter is not provided. Where a valve is provided | |
| at the outlet of the service meter | |
| assembly, such valve shall be considered to be downstream of the point of delivery. | |
| PORTABLE FUEL CELL APPLIANCE. | |
| A fuel cell generator of electricity, which is not fixed in place. A portable | |
| fuel cell appliance utilizes a cord and plug connection to a gr | |
| id | |
| - | |
| isolated load and has an integral fuel supply. | |
| PRESSURE DROP. | |
| The loss in pressure due to friction or obstruction in pipes, valves, fittings, regulators and burn- | |
| ers. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 10 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| PRESSURE TEST. | |
| An operation performed to verify the gas | |
| - | |
| tight integrity of gas piping f | |
| ollowing its installation | |
| or modification. | |
| PURGE. | |
| To free a gas conduit of air or gas, or a mixture of gas and air. | |
| QUICK | |
| - | |
| DISCONNECT DEVICE. | |
| A hand | |
| - | |
| operated device that provides a means for connecting and disconnecting | |
| an appliance or an appliance connecto | |
| r to a gas supply and that is equipped with an automatic means to shut off the | |
| gas supply when the device is disconnected. | |
| READY ACCESS (TO). | |
| That which enables a device, | |
| fixture, | |
| appliance or equipment to be directly reached, without | |
| requiring the removal | |
| or movement of any panel, door or similar obstruction (see “Access | |
| (to) | |
| ”). | |
| REGULATOR. | |
| A device for controlling and maintaining a uniform supply pressure, either pounds | |
| - | |
| to | |
| - | |
| inches water | |
| column (MP regulator) or inches | |
| - | |
| to | |
| - | |
| inches water column (appliance regulator). | |
| REGULATOR, GAS APPLIANCE. | |
| A pressure regulator for controlling pressure to the | |
| manifold | |
| of the | |
| appliance. | |
| Types of appliance regulators are as follows: | |
| Adjustable. | |
| 1. | |
| Spring type, limited adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, the loading of which is adjus | |
| table over a range of not more than 15 percent | |
| of the outlet pressure at the midpoint of the adjustment range. | |
| 2. | |
| Spring type, standard adjustment. | |
| A regulator in which the regulating force acting upon the diaphragm is | |
| derived principally from a spring, th | |
| e loading of which is adjustable. The adjustment means shall be con- | |
| cealed. | |
| Multistage. | |
| A regulator for use with a single gas whose adjustment means is capable of being positioned manually | |
| or automatically to two or more predetermined outlet pressure settin | |
| gs. Each of these settings shall be adjustable | |
| or nonadjustable. The regulator may modulate outlet pressures automatically between its maximum and minimum | |
| predetermined outlet pressure settings. | |
| Nonadjustable. | |
| 1. | |
| Spring type, nonadjustable. | |
| A regulator in | |
| which the regulating force acting upon the diaphragm is derived | |
| principally from a spring, the loading of which is not field adjustable. | |
| 2. | |
| Weight type. | |
| A regulator in which the regulating force acting upon the diaphragm is derived from a weight | |
| or combina | |
| tion of weights. | |
| REGULATOR, LINE GAS PRESSURE. | |
| A device placed in a gas line between the service pressure regulator and | |
| the appliance for controlling, maintaining or reducing the pressure in that portion of the piping system downstream of | |
| the device. | |
| REGUL | |
| ATOR, MEDIUM | |
| - | |
| PRESSURE (MP Regulator). | |
| A line pressure regulator that reduces gas pressure from | |
| the range of greater than 0.5 psig (3.4 kPa) and less than or equal to 5 psig (34.5 kPa) to a lower pressure. | |
| REGULATOR, PRESSURE. | |
| A device placed in a gas line | |
| for reducing, controlling and maintaining the pressure in | |
| that portion of the piping system downstream of the device. | |
| REGULATOR, SERVICE PRESSURE. | |
| A | |
| device installed by the serving gas supplier to reduce and limit the ser- | |
| vice line pressure to delivery pres | |
| sure. | |
| RELIEF OPENING. | |
| The opening provided in a draft hood to permit the ready escape to the atmosphere of the flue | |
| products from the draft hood in the event of no draft, back | |
| draft or | |
| stoppage beyond the draft hood, and to permit air | |
| into the draft hood i | |
| n the event of a strong chimney updraft. | |
| RELIEF VALVE (DEVICE). | |
| A safety valve designed to forestall the development of a dangerous condition by | |
| relieving either pressure, temperature or | |
| vacuum | |
| . | |
| RELIEF VALVE, PRESSURE. | |
| An automatic valve that opens and clo | |
| ses a relief vent, depending on whether the | |
| pressure is above or below a predetermined value. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 11 | |
| RELIEF VALVE, TEMPERATURE. | |
| Manual reset type. | |
| A valve that automatically opens a relief vent at a predetermined temperature and that must be | |
| manually returned to | |
| the closed position. | |
| Reseating or self | |
| - | |
| closing type. | |
| An automatic valve that opens and closes a relief vent, depending on whether the | |
| temperature is above or below a predetermined value. | |
| RELIEF VALVE, VACUUM. | |
| A valve that automatically opens and closes a v | |
| ent for relieving a vacuum within the | |
| hot water supply system, depending on whether the vacuum is above or below a predetermined value. | |
| RISER, GAS. | |
| A vertical pipe supplying fuel gas | |
| that extends one full story or more | |
| . | |
| ROOM HEATER, UNVENTED. | |
| See “Unvented | |
| room heater.” | |
| ROOM HEATER, VENTED. | |
| See | |
| “Vented room heater. | |
| ” | |
| ROUGH | |
| - | |
| IN. | |
| Parts of the gas system that are installed prior to the installation of appliances or equipment. This in- | |
| cludes gas piping, all the necessary supports and any appliances that are built into the structure. | |
| SAFETY SHUTOFF DEVICE. | |
| See “Flame safeguard.” | |
| SERVI | |
| CE PIPING. | |
| All fuel | |
| - | |
| gas piping, valves and fittings upstream of the point of delivery. | |
| SHAFT. | |
| An enclosed space extending through one or more stories of a building, connecting vertical openings in | |
| successive floors, or floors and the roof. | |
| SLEEPING UNIT. | |
| A | |
| dwelling unit, | |
| which | |
| may contain | |
| either | |
| toilet | |
| or kitchen facilities but not both. | |
| Any sleeping | |
| unit housing more than one family shall also be classified as a congregate living unit. The creation | |
| of | |
| or conversion | |
| to | |
| sleeping units | |
| shall be limited by Sec | |
| tion 27 | |
| - | |
| 2077 of the | |
| New York City Housing Maintenance Code | |
| . | |
| SPECIFIC GRAVITY. | |
| As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the | |
| same volume of air, both measured under the same condition. | |
| STATIONARY FUEL CELL P | |
| OWER PLANT. | |
| A | |
| self | |
| - | |
| contained | |
| package or factory | |
| - | |
| matched packages | |
| that | |
| con- | |
| stitute an automatically operated assembly of integrated systems for generating electrical energy and recoverable ther- | |
| mal energy that is permanently connected and fixed in place. | |
| THER | |
| MOSTAT. | |
| Electric switch type. | |
| A device that senses changes in temperature and controls electrically, by means of separate | |
| components, the flow of gas to the burner(s) to maintain selected temperatures. | |
| Integral gas valve type. | |
| An automatic device, actuated by temperature changes, desi | |
| gned to control the gas supply | |
| to the burner(s) in order to maintain temperatures between predetermined limits, and in which the thermal actuating | |
| element is an integral part of the device. | |
| 1. | |
| Graduating thermostat. | |
| A thermostat in which the motion of the | |
| valve is approximately in direct proportion | |
| to the effective motion of the thermal element induced by temperature change. | |
| 2. | |
| Snap | |
| - | |
| acting thermostat. | |
| A thermostat in which the thermostatic valve travels instantly from the closed to | |
| the open position, and vi | |
| ce versa. | |
| THIRD | |
| - | |
| PARTY CERTIFICATION AGENCY. | |
| An approved agency operating a product or material certification | |
| system that incorporates initial product testing, assessment and surveillance of a manufacturer’s quality control sys- | |
| tem. | |
| THIRD | |
| - | |
| PARTY CERTIFIED. | |
| Ce | |
| rtification obtained by the manufacturer indicating that the function and perfor- | |
| mance characteristics of a product or material have been determined by testing and ongoing surveillance by an ap- | |
| proved third | |
| - | |
| party certification agency. Assertion of certificat | |
| ion is in the form of identification in accordance with | |
| the requirements of the third | |
| - | |
| party certification agency. | |
| THIRD | |
| - | |
| PARTY TESTED. | |
| Procedure by which an approved testing laboratory provides documentation that a prod- | |
| uct, material or system conforms to sp | |
| ecified requirements. | |
| DEFINITIONS | |
| 2 | |
| - | |
| 12 | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| TRANSITION FITTINGS, PLASTIC TO STEEL. | |
| An adapter for joining plastic pipe to steel pipe. The purpose | |
| of this fitting is to provide a permanent, pressure | |
| - | |
| tight connection between two materials | |
| that | |
| cannot be joined directly | |
| one to ano | |
| ther. | |
| UNIT HEATER | |
| .High | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, vented appliance having integral means for | |
| circulation of air against 0.2 inch (15 mm H | |
| 2 | |
| O) or greater static pressure. Such appliance is equipped with provisions | |
| for | |
| attaching an outlet air duct and, where the appliance is for indoor installation remote from the space to be heated, | |
| is also equipped with provisions for attaching an inlet air duct. | |
| Low | |
| - | |
| static pressure type. | |
| A self | |
| - | |
| contained, automatically controlled, ven | |
| ted appliance, intended for installation | |
| in the space to be heated without the use of ducts, having integral means for circulation of air. Such units are | |
| allowed to be equipped with louvers or face extensions made in accordance with the manufacturer’s spec | |
| ifications. | |
| UNLISTED BOILER. | |
| A boiler not listed by a nationally recognized testing agency. | |
| UNVENTED ROOM HEATER. | |
| An unvented heating appliance designed for stationary installation and utilized to | |
| provide comfort heating. Such | |
| appliance provides | |
| radiant he | |
| at or convection heat by gravity or fan circulation directly | |
| from the heater and | |
| does | |
| not utilize ducts. | |
| VALVE. | |
| A device used in piping to control the gas supply to any section of a system of piping or to an appliance. | |
| Appliance shutoff. | |
| A valve located in | |
| the piping system, used to isolate individual appliances for purposes such | |
| as service or replacement. | |
| Automatic. | |
| An automatic or semiautomatic device consisting essentially of a valve and operator that control the | |
| gas supply to the burner(s) during operat | |
| ion of an appliance. The operator shall be actuated by application of gas | |
| pressure on a flexible diaphragm, by electrical means, by mechanical means, or by other approved means. | |
| Automatic gas shutoff. | |
| A valve used in conjunction with an automatic gas shuto | |
| ff device to shut off the gas supply | |
| to | |
| a system | |
| . It shall be constructed integrally with the gas shutoff device or shall be a separate assembly. | |
| Individual main burner. | |
| A valve that controls the gas supply to an individual main burner. | |
| Main burner control. | |
| A valve that controls the gas supply to the main burner manifold. | |
| Manual main gas | |
| - | |
| control. | |
| A manually operated valve in the gas line for the purpose of completely turning on or | |
| shutting off the gas supply to the appliance, except to pilot or pilots that are provided with independent shutoff. | |
| Manual reset. | |
| An automatic shutoff valve installed in | |
| the gas supply piping and set to shut off when unsafe con- | |
| ditions occur. The device remains closed until manually reopened. | |
| Service shutoff. | |
| A valve, installed by the serving gas supplier between the service meter or source of supply and | |
| the customer pipin | |
| g system, to shut off the entire piping system. | |
| VENT. | |
| A pipe or other conduit composed of factory | |
| - | |
| made components, containing a passageway for conveying com- | |
| bustion products and air to the atmosphere, listed and labeled for use with a specific type or class | |
| of appliance. | |
| Special gas vent. | |
| A vent listed and labeled for use with listed Category II, III and IV appliances. | |
| Type B vent. | |
| A vent listed and labeled for use with appliances with draft hoods and other Category I appliances | |
| that are listed for use with | |
| Type B vents. | |
| Type BW vent. | |
| A vent listed and labeled for use with wall furnaces. | |
| Type L vent. | |
| A vent listed and labeled for use with appliances that are listed for use with Type L or Type B vents. | |
| VENT CONNECTOR. | |
| See “Connector. | |
| ” | |
| VENT GASES. | |
| Products of c | |
| ombustion from appliances plus excess air plus dilution air in the vent connector, gas | |
| vent or chimney above the draft hood or draft regulator. | |
| VENT PIPING. | |
| DEFINITIONS | |
| 2022 NEW YORK CITY FUEL GAS CODE | |
| 2 | |
| - | |
| 13 | |
| Breather. | |
| Piping run from a pressure | |
| - | |
| regulating device to the outdoors, designed to provide a refer | |
| ence to atmos- | |
| pheric pressure. If the device incorporates an integral pressure relief mechanism, a breather vent can also serve as | |
| a relief vent. | |
| Relief. | |
| Piping run from a pressure | |
| - | |
| regulating or | |
| pressure | |
| - | |
| limiting | |
| device to the outdoors, designed to provide | |
| for | |
| the safe venting of gas in the event of excessive pressure in the gas piping system. | |
| VENTED APPLIANCE CATEGORIES. | |
| Appliances that are categorized for the purpose of vent selection are clas- | |
| sified into the following four categories: | |
| Category I. | |
| An applia | |
| nce that operates with a nonpositive vent static pressure and with a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category II. | |
| An appliance that operates with a nonpositive vent static pressure and with a vent gas temperature | |
| that is capable of causing excessive condensate production in the vent. | |
| Category III. | |
| An appliance that operates with a positive vent static pressure and wi | |
| th a vent gas temperature that | |
| avoids excessive condensate production in the vent. | |
| Category IV. | |
| An appliance that operates with a positive vent static pressure and with a vent gas temperature that | |
| is capable of causing excessive condensate production in th | |
| e vent. | |
| VENTED ROOM HEATER. | |
| A vented self | |
| - | |
| contained, | |
| free | |
| - | |
| standing | |
| , nonrecessed appliance for furnishing warm air | |
| to the space in which it is installed, directly from the heater without duct connections. | |
| VENTED WALL FURNACE. | |
| A self | |
| - | |
| contained vented applian | |
| ce complete with grilles or equivalent, designed for | |
| incorporation in or permanent attachment to the structure of a building, mobile home or travel trailer, and furnishing | |
| heated air circulated by gravity or by a fan directly into the space to be heated th | |
| rough openings in the casing. This | |
| definition shall exclude floor furnaces, unit heaters and central furnaces as herein defined. | |
| VENTING SYSTEM. | |
| A continuous open passageway from the flue collar or draft hood of an appliance to the | |
| outdoor | |
| atmosphere for t | |
| he purpose of removing flue or vent gases. A venting system is usually composed of a vent or a | |
| chimney and vent connector, if used, assembled to form the open passageway. | |
| Forced | |
| - | |
| draft venting system. | |
| A portion of a venting system using a fan or other mecha | |
| nical means to cause the | |
| removal of flue or vent gases under positive static vent pressure. | |
| Induced draft venting system. | |
| A portion of a venting system using a fan or other mechanical means to cause the | |
| removal of flue or vent gases under nonpositive stati | |
| c vent pressure. | |
| Mechanical draft venting system. | |
| A venting system designed to remove flue or vent gases by mechanical means, | |
| that consists of an induced draft portion under nonpositive static pressure or a forced draft portion under positive | |
| static pressu | |
| re. | |
| Natural draft venting system. | |
| A venting system designed to remove flue or vent gases under nonpositive static | |
| vent pressure entirely by natural draft. | |
| WALL HEATER, UNVENTED | |
| - | |
| TYPE. | |
| A room heater of the type designed for insertion in or attachment to a wa | |
| ll | |
| or partition. Such heater does not incorporate concealed venting arrangements in its construction and discharges all | |
| products of combustion through the front into the room being heated. | |
| WATER HEATER. | |
| Any heating appliance or equipment that heats potable | |
| water and supplies such water to the | |
| potable hot water distribution system. |