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// CODE SNIPPET

404.1 Prohibited Locations

NYC Fuel Gas Code 2014 > 4 Gas Piping Installations > 404 Piping System Installation > 404.1 Prohibited Locations
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Piping shall not be installed in or through a ducted supply, return or exhaust duct, or a trash or clothes chute, chimney or gas vent, ventilating duct, dumbwaiter or elevator shaft. Piping installed downstream of the point of delivery shall not extend through any townhouse unit other than the unit served by such piping. Piping, fixtures, or equipment shall be located so as not to interfere with the normal operation of windows or doors and other exit openings. The following installation limitations shall apply:
  1. Stair enclosures. Gas piping shall not be installed within a stair enclosure or required exit or exit way.
  2. Fire standpipe riser. Gas piping shall not be installed in any shaft containing standpipe risers.
  3. Fire pump and fire pump rooms. Gas piping, gas consumption devices or any other gas equipment shall not be installed within any space housing a fire pump. Access to gas meter rooms shall not be permitted through rooms housing a fire pump.
  4. Fire-rated construction. Gas piping shall not be installed within fire-rated assemblies.
  5. Public corridor. Gas piping shall not be installed in public corridors and exit enclosures.

Exception: Gas piping may be installed in public corridors in residential buildings that do not have floors below grade or in multiuse buildings that have a residential occupancy in accordance with the following:
  1. Gas piping shall be permitted to be installed within a public corridor at the lowest level of the building or the lowest residential level of the building.
  2. All gas valves located within the public corridor shall be accessible for maintenance and inspection.
  3. Gas pressure within the public corridor piping shall not exceed 1/2 psi (14 inch w.c.). The completed piping within the public corridor is to be tested and proven tight at 10 psig (69 kPa gauge) for a minimum of 30 minutes.
  4. The public corridor shall be ventilated in accordance with the New York City Mechanical Code. The pipe shall not be installed in a return air plenum.
  5. Pipes must be welded.
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