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Posted by Gas Inspector on October 02, 2009 at 15:17:06:
In Reply to: Mechanically supplied combustion air posted by Gary Killacky on September 17, 2009 at 15:31:01:
: We are commissioning a new plant where air to the boiler room is mechanically supplied by the HVAC.
: Can any one tell me an "approved device" that can be installed in the air supply duct, that can be used to trip the boiler firing in the event of insufficient combustion air available in the boiler room, supplying the FD Fans.
: I'm thinking a duct flap/proximity switch or peto tube
Is "opening the door" an approved device?