Commercial Gas or Electric Heat *,
Electric Cool, split systems & package units
including Commercial Heat Pumps **
Sample Wiring Diagrams
Gas or Electric Heat
7 Wire, 2 Stage Cooling, 2 Stage Heat
CK1
GND
RS
RS+5
W2
Y2
C
G
Y1
W1-O-B
R
POWER
R
COMPRESSOR
Y
W
GAS VALVE
or
STRIP HEAT
COMMON
C
FAN
G
2nd STAGE
HEATING
W
2
*
selected ON (see page 13, step 5 of Owner’s Manual).
**
Commercial heat pumps do not have the heat pump turned
ON in advanced setup (see page 12, step 3 of Owner’s Manual).
If using first stage electric heat, this option must be
2nd STAGE
COOLING
Y
2
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