9
69-0939—1
STEP 4. WIRE WALLPLATE TERMINALS
NOTE: All wiring must comply with local
codes and ordinances. If unsure
about household wiring procedures,
call your local heating/air condition-
ing contractor.
Refer to the labels you placed on wires when
you removed your old thermostat.
❑
Match the letter of your old thermostat
wire with the terminal of the correspond-
ing letter on your new thermostat. Refer to
illustrations on pages 10, 11, and 12.
Be sure to remove the factory-installed
jumper connecting terminals R and Rc when
wires are connected to both the R and Rc
terminals.
❑
Loosen the terminal screws and slip each
wire beneath its matching terminal. Either
straight or wraparound wiring connections
are acceptable (see illustration). Tighten
terminals.
❑
Plug the hole in the wall with insulation to
help prevent drafts from adversely
affecting thermostat operation.
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM).
