UpCodes logo
Jump To Full Code Chapter
1312.1 Connecting Appliances and Equipment
Appliances and equipment shall be connected to the building piping in compliance with Section 1312.6 through Section 1312.8 by one of the following:
  1. Rigid metallic pipe and fittings.
  2. Semirigid metallic tubing and metallic fittings. Aluminum alloy tubing shall not be used in exterior locations.
  3. A listed connector in compliance with CSA Z21.24. The connector shall be used in accordance with the manufacturer's installation instructions and shall be in the same room as the appliance. Only one connector shall be used per appliance.
  4. A listed connector in compliance with CSA Z21.75. Only one connector shall be used per appliance.
  5. CSST where installed in accordance with the manufacturer's installation instructions.
  6. Listed nonmetallic gas hose connectors in accordance with Section 1312.3.
  7. Unlisted gas hose connectors for use in laboratories and educational facilities in accordance with Section 1312.4. [NFPA 54:9.6.1]
1312.1.1 Commercial Cooking Appliances
Connectors used with commercial cooking appliances that are moved for cleaning and sanitation purposes shall be installed in accordance with the connector manufacturer's installation instructions. Such connectors shall be listed in accordance with CSA Z21.69. [NFPA 54:9.6.1.3]
1312.1.2 Restraining Device
Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer's installation instructions. [NFPA 54:9.6.1.4]
1312.2 Suspended Low-Intensity Infrared Tube Heaters
Suspended low-intensity infrared tube heaters shall be connected to the building piping system with a connector listed for the application in accordance with CSA Z21.24 as follows:
  1. The connector shall be installed in accordance with the tube heater installation instructions, and shall be in the same room as the appliance.
  2. Only one connector shall be used per appliance. [NFPA 54:9.6.1.5]
1312.3 Use of Gas Hose Connectors
Listed gas hose connectors shall be used in accordance with the manufacturer's installation instructions and in accordance with Section 1312.3.1 or Section 1312.3.2. [NFPA 54:9.6.2]
1312.3.1 Indoor
Indoor gas hose connectors shall be used only to connect laboratory, shop, and ironing appliances requiring mobility during operation and installed in accordance with the following:
  1. An appliance shutoff valve shall be installed where the connector is attached to the building piping.
  2. The connector shall be of minimum length and shall not exceed 6 feet (1829 mm).
  3. The connector shall not be concealed and shall not extend from one room to another or pass through wall partitions, ceilings, or floors. [NFPA 54:9.6.2(1)]
1312.3.2 Outdoor
Where outdoor gas hose connectors are used to connect portable outdoor appliances, the connector shall be listed in accordance with CSA Z21.54 and installed in accordance with the following:
  1. An appliance shutoff valve, a listed quick-disconnect device, or a listed gas convenience outlet shall be installed where the connector is attached to the supply piping and in such a manner so as to prevent the accumulation of water or foreign matter.
  2. This connection shall be made only in the outdoor area where the appliance is to be used. [NFPA 54:9.6.2(2)]
  3. The connector length shall not exceed 15 feet (4572 mm).
1312.4 Injection (Bunsen) Burners
Injection (Bunsen) burners used in laboratories and educational facilities shall be permitted to be connected to the gas supply by an unlisted hose. [NFPA 54:9.6.3]
1312.5 Connection of Portable and Mobile Industrial Appliances
Where portable industrial appliances or appliances requiring mobility or subject to vibration are connected to the building gas piping system by the use of a flexible hose, the hose shall be suitable and safe for the conditions under which it can be used. [NFPA 54:9.6.4.1]
1312.5.1 Swivel Joints or Couplings
Where industrial appliances requiring mobility are connected to the rigid piping by the use of swivel joints or couplings, the swivel joints or couplings shall be suitable for the service required and only the minimum number required shall be installed. [NFPA 54:9.6.4.2]
1312.5.2 Metal Flexible Connectors
Where industrial appliances subject to vibration are connected to the building piping system by the use of all metal flexible connectors, the connectors shall be suitable for the service required. [NFPA 54:9.6.4.3]
1312.5.3 Flexible Connectors
Where flexible connections are used, they shall be of the minimum practical length and shall not extend from one room to another or pass through any walls, partitions, ceilings, or floors. Flexible connections shall not be used in any concealed location. They shall be protected against physical or thermal damage and shall be provided with gas shutoff valves in readily accessible locations in rigid piping upstream from the flexible connections. [NFPA 54:9.6.4.4]
1312.6 Appliance Shutoff Valves and Connections
Each appliance connected to a piping system shall have an accessible, approved manual shutoff valve with a nondisplaceable valve member, or a listed gas convenience outlet. Appliance shutoff valves and convenience outlets shall serve a single appliance only. The shutoff valve shall be located within 6 feet (1829 mm) of the appliance it serves. Where a connector is used, the valve shall be installed upstream of the connector. A union or flanged connection shall be provided downstream from the valve to permit removal of appliance controls. Shutoff valves serving decorative appliances shall be permitted to be installed in fireplaces if listed for such use. [NFPA 54:9.6.5, 9.6.5.1(A)(B)]
Exceptions:
  1. Shutoff valves shall be permitted to be accessibly located inside or under an appliance where such appliance is removed without removal of the shutoff valve.
  2. Shutoff valves shall be permitted to be accessibly located inside wall heaters and wall furnaces listed for recessed installation where necessary maintenance is performed without removal of the shutoff valve.
1312.7 Quick-Disconnect Devices
Quick-disconnect devices used to connect appliances to the building piping shall be listed to CSA Z21.41. Where installed indoors, an approved manual shutoff valve with a nondisplaceable valve member shall be installed upstream of the quick-disconnect device. [NFPA 54:9.6.6 — 9.6.6.2]
1312.8 Gas Convenience Outlets
Appliances shall be permitted to be connected to the building piping by means of a listed gas convenience outlet, in conjunction with a listed appliance connector, installed in accordance with the manufacturer's installation instructions.
Gas convenience outlets shall be listed in accordance with CSA Z21.90 and installed in accordance with the manufacturer's installation instructions. [NFPA 54:9.6.7]
1312.9 Sediment Trap
Where a sediment trap is not incorporated as a part of the appliance, a sediment trap shall be installed downstream of the appliance shutoff valve as close to the inlet of the appliance as practical, but before the flex connector, where used at the time of appliance installation. The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet, as illustrated in Figure 1312.9 or other device recognized as an effective sediment trap. Illuminating appliances, ranges, clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor grills shall not be required to be so equipped.
For SI units: 1 inch = 25.4 mm
FIGURE 1312.9
METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP
[NFPA 54: FIGURE 9.6.8]
1312.10 Installation of Piping
Piping shall be installed in a manner not to interfere with inspection, maintenance, or servicing of the appliances. [NFPA 54:9.6.9]
1312.11 Liquefied Petroleum Gas Facilities and Piping
Liquefied petroleum gas facilities shall comply with NFPA 58.

Related Code Sections

1312.0 Fuel Gas Piping, Appliance Connections to Building Piping
Appliances and equipment shall be connected to the building piping in compliance with Section 1312.6 through Section 1312.8 by one of the following ...
1312.3 Fuel Gas Piping, Use of Gas Hose Connectors
with the following: An appliance shutoff valve shall be installed where the connector is attached to the building piping. The connector shall ...
1312.8 Fuel Gas Piping, Gas Convenience Outlets
Appliances shall be permitted to be connected to the building piping by means of a listed gas convenience outlet, in conjunction with a listed ...
1312.2 Fuel Gas Piping, Suspended Low-Intensity Infrared Tube Heaters
Suspended low-intensity infrared tube heaters shall be connected to the building piping system with a connector listed for the application ...