I am a newbie who has helped installers troubleshoot electrical problems for over 30 years. I have read the rules and hope I am compliant!
About 8 years a contractor installed a 3 ton 2 stage Armstrong furnace and matching ac unit, replacing a 2 1/2 unit from Janitrol. He apparently did not figure the new windows and added blown in attic insulation into the load calculations, and yep, I have cold clammy air, because the ac does not run long enough.
I have a 3" pvc pipe bringing in outside air for combustion. May I cap that (only in the summer) to lower my indoor humidity a little?
As I am a tech, I can wire the two speed fan motor to stay on low, but should I do this? Will it increase line pressures excessively?
I am very vigilant about routine procedures like cleaning the condensing coil and keeping clean filters installed. Because of numerous layoffs, installing a 2 1/2 condensing unit (if it would work) is no longer in the budget. I would appreciate some input and I assure you I do not sue people; I can't afford a lawyer anyway!