AGA Z22302 : 2002 ADDENDA A 03
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
NATIONAL FUEL GAS CODE
25-11-2024
12-01-2013
Chapter 1 - General
1.1 Scope
1.2 Alternative Materials, Equipment, and Procedures
1.3 Retroactivity
1.4 Qualified Agency
1.5 Interruption of Service
1.6 Prevention of Accidental Ignition
1.7 Definitions
Chapter 2 - Gas Piping System Design, Materials, and
Components
2.1 Piping Plan
2.2 Provision for Location of Point of Delivery
2.3 Interconnections Between Gas Piping Systems
2.4 Sizing of Gas Piping Systems
2.5 Piping System Operating Pressure Limitations
2.6 Acceptable Piping Materials and Joining Methods
2.7 Gas Meters
2.8 Gas Pressure Regulators
2.9 Overpressure Protection Devices
2.10 Back Pressure Protection
2.11 Low-Pressure Protection
2.12 Shutoff Valves
2.13 Expansion and Flexibility
Chapter 3 - Gas Piping Installation
3.1 Piping Underground
3.2 Aboveground Piping Outside
3.3 Piping in Buildings
3.4 Concealed Piping in Buildings
3.5 Piping in Vertical Chases
3.6 Gas Pipe Turns
3.7 Drips and Sediment Traps
3.8 Outlets
3.9 Branch Pipe Connection
3.10 Manual Gas Shutoff Valves
3.11 Prohibited Devices
3.12 Systems Containing Gas-Air Mixtures Outside The
Flammable Range
3.13 Systems Containing Flammable Gas-Air Mixtures
3.14 Electrical Bonding and Grounding
3.15 Electrical Circuits
3.16 Electrical Connections
Chapter 4 - Inspection, Testing, and Purging
4.1 Pressure Testing and Inspection
4.2 System and Equipment Leakage Test
4.3 Purging
Chapter 5 - Equipment Installation
5.1 General
5.2 Accessibility and Clearance
5.3 Air for Combustion and Ventilation
5.4 Equipment on Roofs
5.5 Equipment Connections to Building Piping
5.6 Electrical
5.7 Room Temperature Thermostats
Chapter 6 - Installation of Specific Equipment
6.1 General
6.2 Air-Conditioning Equipment (Gas-Fired Air Conditioners
and Heat Pumps)
6.3 Central Heating Boilers and Furnaces
6.4 Clothes Dryers
6.5 Conversion Burners
6.6 Decorative Appliances for Installation in Vented
Fireplaces
6.7 Gas Fireplaces, Vented
6.8 Direct Makeup Air Heaters
6.9 Direct Gas-Fired Industrial Air Heaters
6.10 Duct Furnaces
6.11 Floor Furnaces
6.12 Food Service Equipment, Floor-Mounted
6.13 Food Service Equipment Counter Appliances
6.14 Hot Plates and Laundry Stoves
6.15 Household Cooking Appliances
6.16 Illuminating Appliances
6.17 Incinerators, Commercial-Industrial
6.18 Incinerators, Domestic
6.19 Infrared Heaters
6.20 Open-Top Broiler Units
6.21 Outdoor Cooking Appliances
6.22 Pool Heaters
6.23 Refrigerators
6.24 Room Heaters
6.25 Stationary Gas Engines
6.26 Gas-Fired Toilets
6.27 Unit Heaters
6.28 Wall Furnaces
6.29 Water Heaters
6.30 Compressed Natural Gas (CNG) Vehicular Fuel Systems
6.31 Appliances for Installation in Manufactured Housing
Chapter 7 - Venting of Equipment
7.1 General
7.2 Specification for Venting
7.3 Design and Construction
7.4 Type of Venting System to Be Used
7.5 Masonry, Metal, and Factory-Built Chimneys
7.6 Gas Vents
7.7 Single-Wall Metal Pipe
7.8 Through the Wall Vent Termination
7.9 Condensation Drain
7.10 Vent Connectors for Category I Gas Utilization Equipment
7.11 Vent Connectors for Category II, Gas Category III, and
Category IV Gas Utilization Equipment
7.12 Draft Hoods and Draft Controls
7.13 Manually Operated Dampers
7.14 Automatically Operated Vent Dampers
7.15 Obstructions
Chapter 8 - Procedures to be Followed to Place Equipment in
Operation
8.1 Adjusting the Burner Input
8.2 Primary Air Adjustment
8.3 Safety Shutoff Devices
8.4 Automatic Ignition
8.5 Protective Devices
8.6 Checking the Draft
8.7 Operating Instructions
Chapter 9 - Sizing Tables
9.1 Tables for Sizing Gas Piping Systems
Chapter 10 - Sizing of Category I Venting Systems
10.1 Additional Requirements to Single Appliance Vent Tables
10.1 Through 10.5
10.2 Additional Requirements to Multiple Appliance Vent
Tables 10.6 Through 10.13(a) and (b)
Chapter 11 - Referenced Publications
Appendix A - Explanatory Material
Appendix B - Coordination of Gas Utilization Equipment Design,
Construction, and Maintenance
Appendix C - Sizing and Capacities of Gas Piping
Appendix D - Suggested Method for Checking for Leakage
Appendix E - Suggested Emergency Procedures for Gas Leaks
Appendix F - Flow of Gas Through Fixed Orifices
Appendix G - Sizing of Venting Systems Serving Appliances
Equipped with Draft Hoods, Category I Appliances,
and Appliances Listed for Use with Type B Vents
Appendix H - Recommended Procedure for Safety Inspection of an
Existing Appliance Installation
Appendix I - Recommended Procedure for Installing Electrically
Operated Automatic Vent Damper Devices in Existing
Vents
Appendix J - Recommended Procedure for Installing Mechanically
Actuated Automatic Vent Damper Devices in Existing
Vents
Appendix K - Recommended Procedure for Installing Thermally
Actuated Automatic Vent Damper Devices in Existing
Vents
Appendix L - Example of Air Opening Design for Combustion and
Ventilation
Appendix M - Referenced Publications
Index
Covers safety code that applies to the installation of fuel gas utilization equipment and accessories including combustion, installation, ventilation, venting and piping system requirements. Also includes design, materials, components, fabrication assembly, installation, testing, inspection, operation and maintenance).
DevelopmentNote |
Supersedes AGA Z22399. (07/2002) Also numbered as ANSI Z223.1 and NFPA 54. (02/2003)
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DocumentType |
Standard
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PublisherName |
American Gas Association
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Status |
Withdrawn
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UL 103:11ED 2010-10-15 | Factory-Built Chimneys for Residential Type and Building Heating Appliances |
API STD 1104:2013 | WELDING OF PIPELINES AND RELATED FACILITIES |
CSA/ANSI Z21.10.1 : 2014 | GAS WATER HEATERS, VOLUME 1, STORAGE WATER HEATERS WITH INPUT RATINGS OF 75,000 BTU PER HOUR OR LESS |
CSA/ANSI Z21.58 : 2015 | OUTDOOR COOKING GAS APPLIANCES |
CSA/ANSI Z21.13 : 2014 | GAS-FIRED LOW PRESSURE STEAM AND HOT WATER BOILERS |
CSA/ANSI NGV1 : 2017 | COMPRESSED NATURAL GAS VEHICLE (NGV) FUELING CONNECTION DEVICES |
NFPA 58 : 2017 | LIQUEFIED PETROLEUM GAS CODE |
MSS SP 6 : 2017 | STANDARD FINISHES FOR CONTACT FACES OF PIPE FLANGES AND CONNECTING-END FLANGES OF VALVES AND FITTINGS |
NFPA 96 : 2017 | VENTILATION CONTROL AND FIRE PROTECTION OF COMMERCIAL COOKING OPERATIONS |
CSA/ANSI Z21.11.2 : 2013 | GAS-FIRED ROOM HEATERS, VOLUME II, UNVENTED ROOM HEATERS |
NFPA 30A : 2018 | MOTOR FUEL DISPENSING FACILITIES AND REPAIR GARAGES |
NFPA 61 : 2017 | PREVENTION OF FIRES AND DUST EXPLOSIONS IN AGRICULTURAL AND FOOD PROCESSING FACILITIES |
ANSI Z21.69 : 2015 | CONNECTORS FOR MOVEABLE GAS APPLIANCES |
ANSI Z21.22 : 2015 | RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS |
CSA/ANSI Z21.40.1 : 1996 | GAS-FIRED, HEAT ACTIVATED AIR CONDITIONING AND HEAT PUMP APPLIANCES |
ANSI Z21.5.2 : 2016 | GAS CLOTHES DRYERS, VOLUME 2, TYPE 2 CLOTHES DRYERS |
NFPA 90A : 2018 | INSTALLATION OF AIR-CONDITIONING AND VENTILATING SYSTEMS |
CSA 12.3 : 2014 | FUEL SYSTEM COMPONENTS FOR COMPRESSED NATURAL GAS POWERED VEHICLES |
NFPA 88A : 2015 | PARKING STRUCTURES |
NFPA 90B : 2018 | INSTALLATION OF WARM AIR HEATING AND AIR-CONDITIONING SYSTEMS |
ASME B16.20 : 2012 | METALLIC GASKETS FOR PIPE FLANGES |
NFPA 501A : 2017 | FIRE SAFETY CRITERIA FOR MANUFACTURED HOME INSTALLATIONS, SITES, AND COMMUNITIES |
ASHRAE HDBK FUNDAMENTALS : 2013 | ASHRAE HANDBOOK - FUNDAMENTALS |
ASTM A 254 : 1997 | Standard Specification for Copper-Brazed Steel Tubing |
ANSI Z21.61 : 1983 | GAS-FIRED TOILETS |
ASME B16.1 : 2015 | Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250 |
ASME B1.20.1 : 2013(R2018) | PIPE THREADS, GENERAL PURPOSE (INCH) |
ASTM D 2513 : 2017-01 | SPECIFICATION FOR POLYETHYLENE (PE) GAS PRESSURE PIPE, TUBING, AND FITTINGS |
ANSI Z21.47 : 2016 | GAS-FIRED CENTRAL FURNACES |
AWS B2.1 : 2005 | SPECIFICATION FOR WELDING PROCEDURE AND PERFORMANCE QUALIFICATION |
NFPA 86 : 2015 | OVENS AND FURNACES |
ASTM B 88 : 2016 : REDLINE | Standard Specification for Seamless Copper Water Tube |
UL 441:11ED 2016-04-08 | Gas Vents |
NFPA 52 : 2016 | VEHICULAR NATURAL GAS FUEL SYSTEMS CODE |
NFPA 1192 : 2018 | RECREATIONAL VEHICLES |
ANSI Z21.88 : 2016 | VENTED GAS FIREPLACE HEATERS |
AWWA C111/A21.11 : 2017 | RUBBER-GASKET JOINTS FOR DUCTILE-IRON PRESSURE PIPE AND FITTINGS |
NFPA 59 : 2018 | UTILITY LP-GAS PLANT CODE |
ASME B36.10M : 2015 | WELDED AND SEAMLESS WROUGHT STEEL PIPE |
ASTM A 539 : 1999 | Standard Specification for Electric-Resistance-Welded Coiled Steel Tubing for Gas and Fuel Oil Lines (Withdrawn 2004) |
NFPA 70 : 2017 | NATIONAL ELECTRICAL CODE |
NFPA 59A : 2016 | PRODUCTION, STORAGE, AND HANDLING OF LIQUEFIED NATURAL GAS (LNG) |
NFPA 51 : 2018 | DESIGN AND INSTALLATION OF OXYGEN-FUEL GAS SYSTEMS FOR WELDING, CUTTING, AND ALLIED PROCESSES |
NFPA 409 : 2016 | AIRCRAFT HANGARS |
CSA/ANSI Z21.54 : 2014 | GAS HOSE CONNECTORS FOR PORTABLE OUTDOOR GAS-FIRED APPLIANCES |
CSA/ANSI Z21.91 : 2007 | VENTLESS FIREBOX ENCLOSURES FOR GAS-FIRED UNVENTED DECORATIVE ROOM HEATERS |
NFPA 30 : 2018 | FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE |
ANSI Z21.56 : 2014 | GAS-FIRED POOL HEATERS |
AWS B2.2 : 1991 | STANDARD FOR BRAZING PROCEDURE AND PERFORMANCE QUALIFICATION |
CSA/ANSI Z21.60 : 2012 | DECORATIVE GAS APPLIANCES FOR INSTALLATION IN SOLID-FUEL BURNING FIREPLACES |
NACE RP 01 69 : 2002 | CONTROL OF EXTERNAL CORROSION ON UNDERGROUND OR SUBMERGED METALLIC PIPING SYSTEMS |
CSA/ANSI Z21.86-2016/CSA 2.32-2016 | Vented gas-fired space heating appliances |
CSA/ANSI Z83.11 : 2016 | GAS FOOD SERVICE EQUIPMENT |
NFPA 82 : 2014 | INCINERATORS AND WASTE AND LINEN HANDLING SYSTEMS AND EQUIPMENT |
NFPA 37 : 2018 | INSTALLATION AND USE OF STATIONARY COMBUSTION ENGINES AND GAS TURBINES |
ASTM C 64 : 1972 : R1977 | Standard Specification for Refractories for Incinerators and Boilers |
ANSI Z21.19 : 2014 | REFRIGERATORS USING GAS FUEL |
ANSI A21.52 : 1991 | DUCTILE IRON PIPE, CENTRIFUGALLY CAST, GAS |
NFPA 211 : 2016 | CHIMNEYS, FIREPLACES, VENTS, AND SOLID FUEL-BURNING APPLIANCES |
CSA/ANSI Z21.5.1 : 2016 | GAS CLOTHES DRYERS, VOLUME 1, TYPE 1 CLOTHES DRYERS |
ANSI Z21.83 : 0 | FUEL CELL POWER PLANTS |
MSS SP 58 : 2009 | PIPE HANGERS AND SUPPORTS - MATERIALS, DESIGN, MANUFACTURE, SELECTION, APPLICATION, AND INSTALLATION |
CSA/ANSI Z83.8 : 2016 | GAS UNIT HEATERS, GAS PACKAGED HEATERS, GAS UTILITY HEATERS, AND GAS-FIRED DUCT FURNACES |
ASHRAE HDBK HVAC SYSTEMS & EQUIPMENT : 2012 | ASHRAE HANDBOOK - HVAC SYSTEMS AND EQUIPMENT |
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