N.Y.C. Admin. Code § FGC 411: Section FGC 411: Appliance and Manufactured Home Connections

411.1 Connecting appliances.

Except as required by Section 411.1.1, appliances shall be connected to the piping system by one of the following:

1. Rigid metallic pipe and fittings. Space heaters and water heaters shall be connected using rigid piping and fittings only. Use of semirigid (flexible) metallic tubing, fittings, appliance connectors or quick-disconnect devices is not permitted for this application.

2. Listed and labeled appliance connectors in compliance with ANSI Z21.24/CGA 6.10 and installed in accordance with the manufacturer's instructions and located entirely in the same room as the appliance. Connectors shall have an overall length not to exceed 6 feet (1828.8 mm). Measurement shall be made along the centerline of the connector. Only one connector shall be used for each appliance.

3. Listed and labeled quick-disconnect devices used in conjunction with listed and labeled appliance connectors.

4. Listed and labeled convenience outlets used in conjunction with listed and labeled appliance connectors.

5. Listed and labeled outdoor appliance connectors in compliance with ANSI Z21.75/CSA 6.27 and installed in accordance with the manufacturer's instructions.

6. Listed outdoor gas hose connectors in compliance with ANSI Z21.54 used to connect portable outdoor appliances. The gas hose connection shall be made only in the outdoor area where the appliance is used, and shall be to the gas piping supply at an appliance shutoff valve, a listed quick-disconnect device or listed gas convenience outlet.

411.1.1 Commercial cooking appliances.

Commercial cooking appliances installed on casters and appliances that are moved for cleaning and sanitation purposes shall be connected to the piping system with an appliance connector listed as complying with ANSI Z21.69/CSA 6.16 and NSF/ANSI 169 or in accordance with Item 1 of Section 411.1. The commercial cooking appliance connector installation shall be configured in accordance with the manufacturer's instructions. Movement of appliances with casters shall be limited by a restraining device installed in accordance with the connector and appliance manufacturer's instructions.

411.1.2 Protection against damage.

Connectors and tubing shall be installed so as to be protected against physical damage.

411.1.3 Connector installation.

Fuel connectors shall be installed in accordance with the manufacturer's instructions and Sections 411.1.3.1 through 411.1.3.4.

411.1.3.1 Maximum length.

Connectors shall have an overall length not to exceed 6 feet (1828.8 mm). Measurement shall be made along the centerline of the connector. Only one connector shall be used for each appliance.

411.1.3.2 Minimum size.

Connectors shall have the capacity for the total demand of the connected appliance.

411.1.3.3 Prohibited locations and penetrations.

Connectors shall not be concealed within, or extended through, walls, floors, partitions, ceilings or appliance housings.

Exceptions:

1. Connectors constructed of materials allowed for piping systems in accordance with Section 403 shall be permitted to pass through walls, floors, partitions and ceilings where installed in accordance with Section 409.5.2.

2. Rigid steel pipe connectors shall be permitted to extend through openings in appliance housings.

3. Fireplace inserts that are factory equipped with grommets, sleeves or other means of protection in accordance with the listing of the appliance.

4. Listed connectors shall be permitted to extend through an opening in an appliance housing, cabinet or casing where the tubing or connector is protected against damage.

411.1.3.4 Shutoff valve.

A shutoff valve not less than the nominal size of the piping system shall be installed ahead of the connector in accordance with Section 409.5.

411.1.4 Movable appliances.

Where appliances are equipped with casters or are otherwise subject to periodic movement or relocation for purposes such as routine cleaning and maintenance, such appliances shall be connected to the supply system piping by means of an appliance connector listed as complying with ANSI Z21.69/CSA 6.16 or by means of Item 1 of Section 411.1 of this code. Such flexible connectors shall be installed and protected against physical damage in accordance with the manufacturer's instructions.

411.1.5 Connection of gas engine-powered air conditioners.

Internal combustion engines shall not be rigidly connected to the gas supply piping.

411.1.6 Unions.

A union fitting shall be provided for appliances connected by rigid metallic pipe. Such unions shall be accessible and located within 6 feet (1828.8 mm) of the appliance.

411.2 Manufactured home connections.

Manufactured homes shall be connected to the distribution piping system by one of the following materials:

1. Metallic pipe in accordance with Section 403.4.

2. Listed and labeled connectors in compliance with ANSI Z21.75/CSA 6.27 and installed in accordance with the manufacturer's instructions.

411.3 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 complying with ANSI Z21.24/CGA 6.10. The connector shall be installed as specified by the tube heater manufacturer's instructions.