Alternate Wiring (Conventional Systems)
If labels do not match terminals, connect wires as shown here (see notes,
below).
Remove metal jumper connecting
both
and
R
Rc
If your old thermostat had both
Connect the
If your old thermostat had only 1
terminal. If your old thermostat had 2
C
separately with electrical tape and do not connect them.
Alternate Wiring (Heat Pump)
If labels do not match letters on thermostat, see page 7.
HEAT PUMP
C
G
Y
O/B
RC
R
RC
R
W
Y
G
C
Y2
W2
wires.
wire to the
terminal, and the
R
Rc
Rc
2
R
2
W
Y
G
C
3
Y2
W2
MCR28076
and
only if you must connect
R
Rc
and
wires, remove metal jumper.
R
RH
RH
or
wire, connect it to the
C
C1
or
wires, wrap each
C
C1
HEAT PUMP
NOTE: If E and Aux
Aux
do not each have a
E
wire connected, use a
L
small piece of wire to
connect them to each
other.
MCR33552
6
wire to the
terminal.
R