OD = Amana ASZ16 3.0 ton
Furnace = Amana AMV8090
Coil = Lennox C33 (4 ton, I think)
T-stat = VisionPRO IAQ
Location = Kansas City
1400sq ft house
The system was just installed yesterday. I was told to keep the fan setting on the thermostat set to "ON". In this setting, the VFD controlled fan never slows down from 100%. Even if the inside temp is below the set point, the fan is still cruising along at full speed, but the cooling coils are turned off. If I set the t-stat to "auto" it will shut the fan off when below the set point. I thought the idea behind the VFD fan was that it would run at 20% w/ no cooling if the temp was below the set point? Do I need to check one of the installation settings? The techs tested both stages of heating and cooling before they left.
Another question. On my old heat pump system (1995 lennox, 2.5 ton), I couldn't set the A/C back in the summer more than 2 degrees or it would take it 4+ hours to recover. With this newer unit, should I be able to set it back farther during the day when I'm not home? I used to set it at 79F for when the house is occupied and 81F for the daytime setting when no one is home. The preset energy star settings set it back to 85F. That seems a bit much to me.
I appreciate any help anyone can provide.