GE CC-SCSTAT User Manual

Page of 44
SmartCommand Thermostat
Installation Manual
26
Heat pump HVAC system wiring
Figure 19 shows the wiring diagram for a heat pump HVAC system. Wire colors are typical thermostat color 
codes.
Note:  
Do not cut JP1 for heat pump systems. RC and RH are common for heat pumps.
Figure 19. Heat pump HVAC system wiring
C    24 VAC common
R    24 VAC return
W1  Heat strips 
O Changeover valve
G   Fan
Y1 Comp stage 1
Y2 Comp stage 2
Thermostat
connections
Heat pump HVAC system
Thermostat control unit
SW1
HP
STD      1
S2       2
OFF     ON
J4
HVAC system
JP1
FUSE
24C  COM
24V  RH
24V  RC
W1  Heat 1
W2/O CO
G  Fan
Y1  Comp 1
Y2  Camp 2
Blue
Red
White
Orange
Green
Yellow
Black