18 BAS-SVX44C-EN
Installation and Wiring
Figure 12. Programmable Thermostat, 1H/2C, Conventional (Option 9)
Figure 13. Programmable Thermostat, 2H/2C, Heat Pump Without Auxiliary Heat (Option 10)
Figure 14. Programmable Thermostat, 3H/2C, Heat Pump With Auxiliary Heat (Option 11)
Thermostat Cover Replacement
After completing all wiring, replace the thermostat cover. To replace the cover:
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
Fan
24 Vac
Changeover Valve
Compressor 1
Compressor 2
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
Fan
24 Vac
Changeover Valve
Compressor 1
Auxiliary Heat
Compressor 2
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