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
8
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Lutron
®
24/7 Technical Support—800.523.9466
product specifications
06.28.12
369539b
Lutron
R
Comfort Controls
TouchPRO Wireless
R
Thermostat
Terminal Designations
Terminal Description
R
Heating power. Connect to secondary side of heating system transformer.
Rc
Cooling power. Connect to secondary side of cooling system transformer.
C
Required common wire from secondary side of cooling transformer (if 2 transformers)
W
1st stage heat relay.
W2
2nd stage heat relay.
Y
1st stage compressor contactor.
Y2
2nd stage compressor contactor.
G
Fan relay.
L
Heat pump reset (powered continuously when system is set to Em Heat; system
monitor when set to Heat, Cool or Off).
O / B
Changeover valve for heat pumps.
K
Optional wiring module terminal.
S1 / S2
Optional remote sensor.
Conventional
Heat Pump