Honeywell Lyric T6 Pro Wi-Fi Professional Install Manual page 6

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
2H/2C Heat Pump System
R Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor (stage 1)
C 24VAC common
O/B Changeover valve
G Fan relay
Y2 Compressor contactor (stage 2)
L Heat pump fault input
3H/2C Heat Pump System
R
Power
Rc [R+Rc joined by Slider Tab]
Y Compressor contactor (stage 1)
C
24VAC common
O/B Changeover valve
G Fan relay
Aux Auxiliary heat
E Emergency heat relay
Y2 Compressor contactor (stage 2)
L
Heat pump fault input
NOTE: This application is not
supported by all models of the
thermostat.
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