Wiring Conventional System - Honeywell RTH2510 Series Quick Installation Manual

Advanced Installation Guide
About your new thermostat Wiring—Conventional System
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.
69-2602EF—01
O G Y
C X
or . Wrap bare end of wire with
22
4 4
R
and
R Rc
M32726
Rc
terminals,