Honeywell T6 Pro - Wiring Heat Pump Systems; Wiring Notes

Y Compressor contactor
C 24 VAC common from cooling transformer
W Heat relay
G Fan relay
2H/2C System (1 transformer)
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor (stage 1)
C 24VAC common
W Heat relay (stage 1)
G Fan relay
W2 Heat relay (stage 2)
Y2 Compressor contactor (stage 2)
Hot Water Relay Panel
R Power
Rc [R+Rc joined by Slider Tab]
W Heat Relay
C 24VAC common
NOTE: If the panel does not provide 24 volts AC at R and C, set the slider to down position and wire a separate
transformer to Rc and C.
Heat-only System with Fan
R Power
Rc [R+Rc joined by Slider Tab]
C 24VAC common
W Heat relay
G Fan relay
Cool-only System with Fan
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor
C 24VAC common
G Fan relay
Heat pumps systems
1H/1C Heat Pump System
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor
C 24VAC common
O/B Changeover valve
G Fan relay
2H/1C Heat Pump System
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor
C 24VAC common
O/B Changeover valve
G Fan relay
Aux Auxiliary heat*
E Emergency heat relay*
L Heat pump fault input
NOTE: If dual fuel, TH6320WF2003 model needed.
2H/2C Heat Pump System