Trane THT02775 - Page 17

BAS-SVX44A-EN 17
Installation and Wiring
Figure 11. Programmable Thermostat, 2H/1C, Conventional (Option 8)
Figure 12. Programmable Thermostat, 1H/2C, Conventional (Option 9)
Fan
Heat 1
Heat 2
24 Vac
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
Compressor
L2
L1 (hot)
Single Transformer:
(jumper
installed)
Fan
L2
L1 (hot)
24 Vac
Heat 1
Compressor
L2
L1 (hot)
24 Vac
Cooling Transformer
Heating Transformer
Two Transformers:
(jumper
removed)
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
Heat 2
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh
Fan
Heat 1
24 Vac
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
Compressor 1
Compressor 2
L2
L1 (hot)
Single Transformer:
(jumper
installed)
Fan
L2
L1 (hot)
24 Vac
Heat
Compressor 1
L2
L1 (hot)
24 Vac
Cooling Transformer
Heating Transformer
Two Transformers:
(jumper
removed)
Compressor 2
Economizer/TOD
Dehumidification
Remote Temperature Sensor
Remote Humidity Sensor
C
G
Y
W
Rc
R
W2
Y2
A
S1
S2
Hp
Hs
Dh