Trane Thermostats Installation And Operation Manual page 22

Installation
Figure 26. Programmable Thermostat, 2H/1C, Heat Pump With Auxiliary Heat (Option 6)
Figure 27. Programmable Thermostat, 2H/2C, Conventional (Option 7)
Single Transformer:
Two Transformers:
22
L2
24 Vac
L1 (hot)
L2
24 Vac
L1 (hot)
Cooling Transformer
L2
24 Vac
L1 (hot)
Heating Transformer
L2
24 Vac
L1 (hot)
Fan
Compressor
Changeover Valve
Auxiliary Heat
Economizer/TOD
Remote Temperature Sensor
Fan
Compressor 1
Heat 1
Heat 2
Compressor 2
Economizer/TOD
Remote Temperature Sensor
Fan
Compressor 1
Heat 1
Heat 2
Compressor 2
Economizer/TOD
Remote Temperature Sensor
C
G
Y
O/B
(jumper
Rc
installed)
R
W1
Y2
A
S1
S2
C
G
Y
W
(jumper
Rc
installed)
R
W2
Y2
A
S1
S2
C
G
Y
W
Rc
(jumper
removed)
R
W2
Y2
A
S1
S2
BAS-SVX36C-EN