Section 408.11234. Fuel gas manifolding.

Rule 1234. (1) Fuel gas connected to 1 manifold inside a building shall have a total gas capacity of not more than  3,000   cubic  feet  (85    cubic meters approximately) or 11.8 cubic feet (.33 cubic meters) of liquefied gas, which is 735 pounds (333 kilograms) water  capacity.  More  than  1 manifold unit may be located in a room, but the manifolds shall be not less than 50 feet (16 meters) apart or be separated by a noncombustible barrier not less than 5 feet (1.6 meters) high having a fire-resistance rating of 1/2 hour.

(2)    Fuel gas capacity on 1 manifold of more than 3,000 cubic feet (85 cubic meters approximately) or 11.8  cubic   feet  (.33  cubic   meters)   of liquefied gas, which is 735 pounds  (333   kilograms)  water   capacity,   is permissible  in   a  separate  room or  compartment,   as   specified   in  R 408.11222(8), or located outside the building.

(3)     The pressure in the gas cylinders  connected  to,   and  discharged simultaneously through, a common manifold shall be approximately equal.

(4)   Manifolds shall be approved either  separately  for   each   component part or as an assembled unit.

History: 1979 AC; 1981 AACS.