Trane THT02775 - Page 14

14 BAS-SVX44A-EN
Installation and Wiring
Figure 4. Programmable Thermostat, 1H/1C, Conventional (Option 1)
Figure 5. Programmable Thermostat, 1H/1C, Heat Pump Without Auxiliary Heat (Option 2)
Fan
24 Vac
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh
Heat
Economizer/TOD
Dehumidification
Remote Humidity Sensor
Remote Temperature Sensor
Compressor
L2
L1 (hot)
Single Transformer:
(jumper
installed)
Fan
L2
L1 (hot)
24 Vac
Heat
Compressor
L2
L1 (hot)
24 Vac
Cooling Transformer
Heating Transformer
Two Transformers:
(jumper
removed)
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh
Fan
24 Vac
Changeover Valve
Compressor
L2
L1 (hot)
(jumper
installed)
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
W1
Y2
A
S1
S2
Hp
Hs
Dh
C
G
Y
O/B
Rc
R