Honeywell LUTRON TouchPRO Wireless Guide D'installation page 4

Installation Guide
Wiring
Terminal Designations
Conventional Terminal Letters:
R
Heating power. Connect to secondary
side of heating system transformer.
Rc Cooling power. Connect to secondary
side of cooling system transformer.
C Common wire from secondary side of
cooling transformer (if 2 transformers).
[3]
W 1st stage heat relay.
W2 2nd stage heat relay
Y 1st stage compressor contactor.
Y2 2nd stage compressor contactor.
G Fan relay.
K Optional THP9045 Wiring Module
Terminal [9]
S1/S2 Optional remote sensor
1H/1C Heat Pump (no auxiliary heat)
Rc Power [1]
R
[R+Rc joined by jumper]
O/B
Changeover valve [5]
Y Compressor relay
G
Fan relay
C
24 V common [3]
K Optional THP9045 Wiring Module
Terminal [9]
S1/S2 Optional remote sensor
2H/1C Heat Pump (with auxiliary heat)
L Equipment monitor [6, 7]
Aux/E Auxiliary heat relay (Heat 2)
Rc
Power [1]
R [R+Rc joined by jumper]
O/B
Changeover valve [5]
Y
Compressor relay
G Fan relay
C
24 V common [3]
K Optional THP9045 Wiring Module
Terminal [9]
S1/S2 Optional remote sensor
See [notes] below
[1] Power supply. Provide disconnect means and overload protection as required.
[3] Connection to 24 V
[5] O/B set to control as either O or B in installer setup.
[6] If L terminal is used, 24 V
[7] Heat pump reset (powered continuously when thermostat is set to Em. Heat mode; system monitor when
set to Heat, Cool, or OFF).
[9] See page 13 for more details.
P/N 041-338 Rev. C
Wiring guide—heat pump systems
common at the transformer is required.
common (terminal C) must be connected.
Heat Pump Terminal Letters:
R
Heating power. Connect to secondary
side of heating system transformer.
Rc Cooling power. Connect to secondary
side of cooling system transformer.
C Common wire from secondary side of
cooling system transformer. [3]
Y 1st stage compressor contactor.
Y2 2nd stage compressor contactor.
Aux/E Auxiliary heat relay.
G Fan relay.
L Heat pump reset (powered continu-
ously 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 THP9045 Wiring Module
Terminal [9]
S1/S2 Optional remote sensor
2H/2C Heat Pump (no auxiliary heat)
Y2 Compressor 2 relay
Rc Power [1]
R
[R+Rc joined by jumper]
O/B Changeover valve [5]
Y
Compressor 1 relay
G
Fan relay
C 24 V common [3]
K
Optional THP9045 Wiring Module
Terminal [9]
S1/S2 Optional remote sensor
3H/2C Heat Pump (with auxiliary heat)
Y2
Compressor 2 relay
L Equipment Monitor [6, 7]
Aux/E Auxillary heat relay (Heat 2)
Rc
Power [1]
R
[R+Rc joined by jumper]
O/B Changeover value [5]
Y
Compressor 1 relay
G Fan relay
S1/S2 Optional remote sensor
C 24 V common [3]
K Optional THP9045 Wiring Module
Terminal [9]
4 69-2655EFS—05