Combustion Air Details For Trane HV95

OGStilts

My HVAC guy will be installing two Trane XV95 furnace in a house that I have in for permits right now and the village is asking me to "Provide outdoor combustion air duct details for mechanical rooms in complaince with Section G2407.6"

Now I took this to mean that they just want some shop drawings for the combustion air details and thought I could probably find these drawings on Trane's website but I can't find any kind of detail drawings anywhere for this on the net.

Does anybody know where I can find something like this?

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Chicago Home Remodeling-
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Verbal

Outdoor combustion air shall be provided through opening(s) to the outdoors in accordance with Section G2407.6.1 or G2407.6.2. The minimum dimension of air openings shall be not less than 3 inches (76 mm).

Two permanent openings, one commencing within 12 inches (305 mm) of the top and one commencing within 12 inches (305 mm) of the bottom of the enclosure, shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors.





Never had to do this myself, but thats how i would take it.

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flashheatingand

I believe, the inspectors just want to know where you are going to get combustion air from. You cannot draw the air from the room that the furnaces are located or from the living quarters. Around here, we usually cut in a 4x10 at the floor to draw air from the crawl space, and another 4x10 to draw air from the attic. If the furnaces are direct vent furnaces, you will likely pipe the air from any outdoor location via pvc pipe.