Heat Pumps and Electric Heating - Heat pump A/C

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smalltownil
06-16-09, 05:18 PM
The line set coming out of the air handler(Approx 1/4" dia.) isn't cold when running in A/C mode. Is this a problem?

airman.1994
06-16-09, 08:39 PM
Nope! It should not be cold thats why it is not insulated.
dac122
06-17-09, 06:56 AM
The smaller uninsulated line (aka discharge) should be warm, while the bigger insulated line (aka suction) should be cold and possibly forming dew.

If neither line is cold, yes, you have a problem.