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Heat Pump Electrical Wiring Diagram With Terminal Labels and Control Circuit Layout

heat pump electrical wiring diagram

Check the control terminals and conductor routes between the indoor air handler and the outdoor unit before reconnecting any cable. Most residential climate transfer systems operate with a 24-volt control circuit that activates relays, contactors, and valve solenoids. Matching each conductor with the correct terminal prevents compressor lockout, blower failure, or reversing valve malfunction.