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WIRING
Typical Heat-Only System
HEAT RELAY
Typical 2H/2C Heat Pump System w/o Aux.
COMPRESSOR
RELAY 1
FAN RELAY
COMPRESSOR
RELAY 2
12
(HOT)
(HOT)
COOL REVERSING
VALVE
HEAT REVERSING
VALVE
Typical Cool Only System
COMPRESSOR RELAY
FAN RELAY
Typical Heat-Only System With Fan
HEAT RELAY
FAN RELAY
(HOT)
(HOT)
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