when drilling holes in spiral ductwork for proper air distribution what is proper proceedure? furnace is a coleman 80,000 btu echelon 9.c with 14" supply spiral duct. Also does their have to be a h in last didgits of serial # for a horizontal application?

Asked by Bob on 04/17/2014 0  Answer

ManualsOnline posted an answer 9 years, 11 months ago

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