Alternative Wiring - Honeywell RTH111 Series Quick Installation Manual

Advanced Installation Guide
Alternate Wiring 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
terminals, 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 if
you are using a heat pump without auxiliary/backup
heat.
Thermostat does not work on Heat Pumps with auxiliary/
backup heat.
69-2604ES—01
O G Y
C X
or . Wrap bare end of wire with
18
4 4
R
and
R Rc
M32734
Rc