Wiring—Conventional System
About your new thermostat
If labels do not match letters on the thermostat, check the
chart below and connect to terminal as shown here (see
notes, below).
B
If wires will be connected to both
remove metal jumper (see page 6).
Do not use
electrical tape.
If you have a heat pump without auxiliary/backup heat
connect O or B, not both. If you do not have a heat
pump, do not connect B. Wrap bare end of wire with
electrical tape.
Place a jumper (piece of wire) between Y and W/Aux
if you are using a heat pump without auxiliary/backup
heat.
O
G
Y
C
X
or
. Wrap bare end of wire with
23
RTH2510/RTH2410
4
4
R
and
69-2726ES—01
R
Rc
M32726
Rc
terminals,