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120
VAC
24 VAC
Reversing Valve
Compressor
Auxiliary Heat #1
Fan
Auxiliary Heat #2
Single Compressor
heat pump with electric backup
Dual Compressor
heat pump with electric backup
120
VAC
24 VAC
Reversing Valve
Compressor #1
Auxiliary Heat
Compressor #2
Fan
Transformer
Optional
remote or
outdoor sensor
Transformer
Optional
remote or
outdoor sensor