Article ID: 523
Last updated: 9 Mar, 2018
PTAC Heat Pump Re: Blows Cold Air - Heating A PTAC Heat Pump typically uses the compressor for initial heating and electric strip heaters for backup heat. Unlike a standard heat pump, the compressor and electric heaters never operate at the same time. It is one or the other. ► The PTAC heat pump does not have a defrost mode. A sensor on the outdoor coil measures the coil temperature. When the coil temperature gets to 20 deg. the control board stops the compressor and switches to electric heat mode.
CHECKOUT: 1. Check Operation
2. Check Refrigerant
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Article ID: 523
Last updated: 9 Mar, 2018
Revision: 5
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