We have a newly built house that the AC is taking longer than I would expect to drop the temp 2 degrees. I'm wondering how long we should expect it to run under the conditions I've specified below. Any help would be really appreciated.
1950 sq ft new construction house, single story + basement
R60 Ceiling insulation
R19 - 2x6 walls
The house temp was maintained at 78 deg from 4:00pm to 9:00pm. At approx 9:00 pm the thermostat kicked down to 76 deg.
The outside temp was 75 deg with the sun fully set but it was more humid
than inside (not horribly) but enough that to sleep comfortably we wanted to keep the air on.
The AC ran for 120 min straight never shutting off, to drop the temp to 76 deg.
called our HVAC contractor and he said he checked everything out and it's running fine.
I'm just wondering what should be expected under these conditions. Thanks for any help you can give me. If you need any more info please let me know.
I would expect ~ 80 minutes to cool down 2'F after 7 pm.
Delivered air flow ( @ air handler outlet) should be
about 58'F when room is at 78'F.
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