Skip to code content (skip section selection)
Compare to:

You are viewing an archived code

18-28-1106.9  Flammable refrigerants.
   Where refrigerants of Groups A2, A3, B2 and B3 are used, the machinery room shall conform to the Class I, Division 2, hazardous location classification requirements of NFPA 70.
   Exception: Ammonia machinery rooms.