WIRING DIAGRAM
The following wiring diagram is meant to represent typical installations. Pleaser refer to the condensing unit manufacturer's wiring diagram for
more information.
4-Wire Condenser Fans
T2
T1
Run
Fan
Start
49P11-843
SureSwitch
House
Thermostat
C
C
Y
Y
White-Rodgers is a business
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
Separate
Fan
Capacitor
Capacitor
(Optional)
Crankcase Heater
L2
L2
L1
L1
R
C
Figure 4 - Typical Wiring
www.white-rodgers.com
www.emersonclimate.com
FAN
Compressor
Capacitor
COM
HERM
Run
Common
Compressor
Start
3 Wire Hardstart Kit (optional)
1
Start Capacitor
2
5
3-Wire Condenser Fans
Separate
Fan
Common
Capacitor
Capacitor
(Optional)
Run
Fan
Start
2 Wire Hardstart Kit (optional)
Legend:
Line voltage
Low voltage
Line voltage optional circuit
Optional components
Start Capacitor