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Available languages
Wiring terminal designations
S
Input for auxiliary wired floor
or indoor sensors
S
Y
Unused
Y2
Unused
G
Unused
24 VAC common. If a second
transformer, separate
from the one powering the
C
heating equipment, is used,
use the common from that
transformer.
U
Unused
U
* Terminal can be jumped using Slider Tab. See "Setting Slider Tabs" on
page 3.
Wiring conventional systems
Heat-only System (with floor sensor)
R
Power [1]
Rc
[R+Rc joined by Slider Tab] [2]
C
24 VAC common [3]
W
Heat relay
S,S Input for wired floor sensor
Heat-only System (hot water relay
panel with floor sensor)
R
Power [1]
Rc
[R+Rc joined by Slider Tab] [2]
C
24 VAC common [3]
W
to W on zone of relay panel
S,S Input for wired floor sensor
NOTES
Wire specifications: Use 18- to 22-gauge thermostat wire. Shielded cable is not
required.
[1] Power supply. Provide disconnect means and overload protection as required.
[2] Move R-Slider Tab on UWP to the R (1 wire) setting. For more information,
see "Setting Slider Tabs" on page 3.
[3] Optional 24 VAC common connection.
L/A
Unused
- A
O/B
Unused
AUX
Unused
- W2
E
Unused
W
Heat relay (stage 1)
K
Unused
24 VAC power from heating
R
transformer*
24 VAC power is a
transformer other than a
Rc
heating transformer used to
power display (optional)
Heat-only System (power open zone
valve)
R
Power [1]
Rc
[R+Rc joined by Slider Tab] [2]
C
24 VAC common [3]
W
Valve
Heat-only System (boiler with floor
sensor)
R
Power [1]
Rc
[R+Rc joined by Slider Tab] [2]
C
24 VAC common [3]
W
to W on boiler
S,S Input for wired floor sensor
4
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