Advertisement
Terminal Definition
P 15
Appendix
Terminal
Terminal
HP
Non-HP
RC
RC
RC
RH
C
C
L
Y1
Y1
Y2
Y2
W1
W1
O/B
W2
G
G
X
X
Heat Pump
Conventional System
System
24VAC Power supply for Cooling side
24VAC Power supply for Heating side
24 VAC common for control circuit and
thermostat power input
System Monitor No use
1 st stage
1 st stage cooling
compressor
2 nd stage
2 nd stage cooling
compressor
Emergency
1 st stage heating
Heat
Changeover
2 nd stage heating
valve
Fan
Reserved for future use
Advertisement
