Sample Wiring Diagrams
W2
Y2
R
O
W1
B
Y1
G
C
Heat Pump
6 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump* with O or B reversing valve**.
Residential Heat Pumps, split systems & package units, with auxiliary heat.
POWER
R
COMPRESSOR
Y
COMMON
C
FAN
G
2nd STAGE
HEATING
W
2
REVERSING VALVE**
O
/B
*
The “HP” dip switch must be set to ON (see page 5).
** The “O/B” dip switch must be set to O or B (see page 5).
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