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 15, step 13 of Owner’s Manual).
**
Commercial heat pumps do not have the heat pump turned
ON in advanced setup (see page 15, step 11 of Owner’s Manual).
If using first stage electric heat, this option must be
2nd STAGE
COOLING
Y
2
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