Question about Goodman Heating & Cooling
...gas furnace was working hard (probably only 10 seer when installed new). - Only Info I could find on side of the furnace/AC unit in attic: CAC/BDP Model: CD3CXA060000 S/N: S2495A00610 Efficiency: 80 ...
gas pressure must not exceed 1/2 p.s.i. !!! Outlet or manifold pressure must not exceed the gas vale rating which would be 3.4" of water column. Apparently, the manifold pressure was not set properly,
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