RH ..............24VAC HEAT
RC ..............24VAC COOL
C .................24VAC COMMON if applicable
W ................FIRST STAGE HEAT
W2 ..............SECOND STAGE HEAT
Y .................FIRST STAGE COOL
Y2 ...............SECOND STAGE COOL
G .................FAN
B .................HEAT ACTIVATED REVERSING VALVE
O .................COOL ACTIVATED REVERSING VALVE
TERMINAL DESIGNATIONS
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