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Old 1/2/10, 12:52 PM
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dmacy dmacy is offline
Certified Master Inspector
Join Date: Jan 2004
Location: Home Safe Home
Posts: 4,881
Default Heat pump operation

Home has a 2 ton Carrier air source heat pump. 17 years old

Temperature at time of the inspection was 15 degrees. It was operating in the heat mode and heating properly.

I do not get how it was extracting heat from the outside air at 15 degrees.

Mine is set at 30 degrees and it is a 2008 unit.

I do not understand how the exterior unit can take 15 degree air and operate properly.

I also tried in emergency heat mode and it operated.
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