Wire Connections - Honeywell RTH7400 Installation Manual

Connect wires: Conventional Heating and Cooling About your new thermostat
1. Match each labeled wire with
same letter on new thermostat.
2. Use a screwdriver to
loosen screws, insert wires
into hole, then tighten
screws.
3. Push any excess wire back
into the wall opening.
Labels don't match?
If labels do not match letters
on thermostat, see page 11.
Have a Heat Pump System?
See page 10.
SCREW
CONVENTIONAL
C
G
Y
W
RC
R
Remove metal jumper if you have both R and Rc wires.
9
RTH7400/RTH7500
INSERT WIRES
THEN TIGHTEN SCREWS
LABELED WIRES
WIRE HOLE
69-204ES—0
W2
Y2
M28070