Mount Wallplate; Connect Wires - Honeywell RTH7400 Series Owner's Manual

5 Mount Wallplate

Mount the new wallplate using the included screws and anchors.
Drill 3/16-in. holes for drywall
Drill 3/32-in. holes for plaster

6 Connect Wires

Simply match wire labels.
If labels do not match letters on the thermostat, check "Alternate Wiring
(Conventional Systems)" on page 6 and connect to terminal as shown here
(see notes, below).
We are here to help. Call 1-800-468-1502 for wiring assistance.
CONVENTIONAL
SCREW
INSERT WIRES
THEN TIGHTEN SCREWS
LABELED WIRES
C
G
Y
W
RC
R
Remove metal jumper if you have
both and wires.
R Rc
WIRE HOLE
W2
Y2
5
M28094
MCR28845