Connect Wires - Honeywell RTH5100B Owner's Manual

6 Connect Wires

Simply match wire labels.
If labels do not match letters on the thermostat, check "Alternate Wiring" on
page 5 and connect to terminal as shown (see notes, below).
Remove metal
jumper if you
have both
wires.
Rc
Thermostat does not work on Heat Pumps with auxiliary/backup heat.
We are here to help. Call 1-800-468-1502 for wiring assistance.
Alternate Wiring
Rc
R
Y
NOT
USED
O/B W
G
DO
NOT
CONNECT
and
R
Rc
OR R
R
OR RH 4V
Y
OR Y1 M
W
OR W1 H O B
G
OR F
C
OR X B
MCR29548
If wires will be connected to both
R and Rc terminals, remove metal
jumper
Do not connect both O and B, If
you have a heat pump. Connect
O wire to O/B W. Wrap B wire with
electrical tape and do not use.
Do not use C, X or B. Wrap bare
end of wire with electrical tape.
5
MCR29534