Step 8 Wire Wallplate Terminals - Honeywell CT3400 Programming And Installation Instructions

STEP 8 Wire Wallplate Terminals
NOTE: All wiring must comply with local codes
and ordinances. If unsure about household
wiring procedures, call your local heating/air
conditioning contractor.
Refer to masking tape labels you placed on
wires when you removed your old thermostat.
■
Match the letter of your old thermostat wire
with the terminal of the corresponding letter on
your new thermostat. Refer to figures on
pages 23 and 24 and Table 2 for typical wire
colors for easy matching.
TABLE 2—TYPICAL WIRE COLORS
AND FUNCTIONS.
Thermostat
Terminal
G
Y
W
Rc
R
a
Wire colors are typical; verify at heating/cooling
equipment connection.
In 5-wire installations only, be sure to re-
move the factory-installed jumper connect-
ing terminals R and Rc.
21
Connect to
a
Wire Color Function
Green Fan
Yellow Cooling
White Heating
Blue Air Conditioning
Power
Red Furnace Power
69-0733B—1