Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Heat Relay
1H/1C System
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Compressor Contactor
Fan Relay
24 V
~
Common
Cool Only System
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Power (heating transformer)
Compressor Contactor
Fan Relay
Heat Relay
24 V
~
Common (cooling transformer)
1H/1C System (2 transformers)
Note:
Remove jumper between RC and R on thermostat.
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Changeover Valve
1H/1C Heat Pump (no auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Changeover Valve
2H/2C Heat Pump (no auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Changeover Valve
Auxiliary Heat Relay
3H/2C Heat Pump (with auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Changeover Valve
Auxiliary Heat Relay
2H/1C Heat Pump (with auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Power (heating transformer)
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
Heat Relay 1
Heat Relay 2
24 V
~
Common (cooling transformer)
2H/2C System (2 transformers)
Note:
Remove jumper between RC and R on thermostat.
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Heat Relay 1
Heat Relay 2
2H/2C System
Note:
Remove jumper between RC and R on thermostat.
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Heat Relay
1H/1C System
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Compressor Contactor
Fan Relay
24 V
~
Common
Cool Only System
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Power (heating transformer)
Compressor Contactor
Fan Relay
Heat Relay
24 V
~
Common (cooling transformer)
1H/1C System (2 transformers)
Note:
Remove jumper between RC and R on thermostat.
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Changeover Valve
1H/1C Heat Pump (no auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Changeover Valve
2H/2C Heat Pump (no auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Changeover Valve
Auxiliary Heat Relay
3H/2C Heat Pump (with auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor
Fan Relay
24 V
~
Common
Changeover Valve
Auxiliary Heat Relay
2H/1C Heat Pump (with auxiliary heat)
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power (cooling transformer)
Power (heating transformer)
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
Heat Relay 1
Heat Relay 2
24 V
~
Common (cooling transformer)
2H/2C System (2 transformers)
Note:
Remove jumper between RC and R on thermostat.
Y2
L
E/AUX
K
S1
S2
RC
R
O/B
Y
G
C
RC
R
W
Y
G
C
Y2
W2
K
S1
S2
EQUIPMENT
THERMOSTAT
Rc K C W-O/B
Rc Y G C W-O/B
Honeywell THP9045A
HVAC Equipment
Power
Compressor Contactor 1
Compressor Contactor 2
Fan Relay
24 V
~
Common
Heat Relay 1
Heat Relay 2
2H/2C System
Note:
Remove jumper between RC and R on thermostat.
12
|
Lutron
®
24/7 Technical Support—800.523.9466
product specifications
06.28.12
369539b
Lutron
R
Comfort Controls
TouchPRO Wireless
R
Thermostat
Continued on next page...
Conventional Systems
Wiring Guide
(for use with the THP9045A Wiring Module)
