Honeywell RTH3100C - Quick Reference to Display Screen

6
Alternate Wiring
If the old thermostat had both V and VR wires, contact a heating/cooling
contractor for help.
If the old thermostat had both O and B wires, attach the B wire to the C
terminal. If another wire is attached to the C terminal, call 1-800-468-1502
for help.
If the old thermostat had W1, W2 and Y wires, contact a heating/cooling
contractor for help.
If no wire matches the E terminal on the new thermostat, use a small
piece of wire to connect terminals E and Aux.
Aux YGOL
RBC
E
Aux YGOLRBCE
43321 2 2
or
X
X2
or
W
W1
W2
or
Y1
M
or
F
or
F
or
V
VR
or
H
or
B
X
7 Install Batteries
Install two AA alkaline batteries.
Back of thermostat