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7
Terminal labeling reference chart
If your current terminal has
the following letter
Label the wires with the
following letters
Terminal function
RH, R, R5, 5 RH 24V Power (Heating)
RC RC 24V Power (Cooling)
W, W1, 4 W Heating Relay
Y, Y1 Y Cooling Relay
G G Fan Relay
O O
Reversing Valve (for heat pump applications
energized in Cool mode)
B B
Reversing Valve (for heat pump applications
energized in Heat mode)
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