Power Options
Insert R and C wires into designated terminals for AC power. Remove wires by pressing down on the terminal tabs. (C terminal is required for S200 Smart thermostats).
Thermostats using Y and G wires:
If there is no C wire from the previous thermostat or no extra wire in the bundle to the thermostat, you may use the THP9045A C-wire adapter (sold separately).
Note: For more information on the THP9045A C-wire adapter, go to: C-WIRE Adapter Installation Guide
Insert AA batteries for primary or backup power (P200 models only)
Setting Slider Tabs
Set R Slider Tab
Use built-in jumper (R Slider Tab) to differentiate between one or two transformer systems.
-
If there is only one R wire, and it is connected to the R, Rc, or RH terminal, set the slider to the up position (1 wire).
-
If there is one wire connected to the R terminal and one wire connected to the Rc terminal, set the slider to the down position (2 wires).
Note: Slider Tabs for U terminals should be left in place for FocusPRO® P200 and S200 series models.
UWP Wall Plate
R/Rc slider tab
Wiring terminal designations
S |
C7089U1006 wired
outdoor sensor
|
S |
|
Y |
Compressor contactor (stage 1) |
Y2 |
Compressor contactor
(stage 2)
|
G |
Fan |
C |
24VAC common. For 2-transformer systems, use Common wire from cooling transformer. |
U |
Not used on these models. |
U |
|
L/A-A |
Heat Pump fault input. |
O/B |
Changeover valve |
AUX-W2 |
Auxiliary heat
|
E |
Emergency Heat
|
W |
Heat (stage 1) |
K |
To THP9045A C-Wire adapter if needed (S200 or P200) |
R |
24VAC power from heating transformer* |
Rc |
24VAC power from cooling transformer* |
* Terminal can be jumped using R Slider Tab. See Setting Slider Tabs section.
The most commonly used terminals are shaded in the illustration above.
Video: Add a C-Wire Adapter
Watch this video for step-by-step instructions on adding a C-Wire adapter to the FocusPRO P200 & S200 Series Thermostats.