13
Power module requires your system to have the following wires:
4 wires:
W/W1
,
Y/Y1
,
G
, and
R
(or
Rc
or
Rh
)
or 3 wires:
Y/Y1
,
G
, and
R
(or
Rc
or
Rh
)
If you do not have these wires, your system may not be
compatible with the power module.
3-2-2 Install the thermostat
without a
C-wire
(Optional)
RC RH G
C
Y1 Y2 W1W2
O/B
RC
G
Y1
W1
Power module
