Fig. 3—Leveling methods for wallplate or
Outlet Box Mounting (Fig. 4)
Use a horizontally mounted outlet box if possible. If a
vertical outlet box is used, mount the wallplate or subbase on
a 202689A Cover Plate Assembly (ordered separately). Fol-
low the instructions provided with the cover plate assembly.
Align the wallplate or subbase mounting holes on the
outlet box and loosely fasten with two screws.
Carefully level the wallplate or subbase (Fig. 3), and
firmly tighten the screws.
Fig. 4—Mounting wallplate or subbase on horizontal outlet box.
NOT INCLUDED WITH UNIT.
ACCESSORY PARTS AVAILABLE.
WIRE WALLPLATE OR SUBBASE
Follow the instructions provided by the heating, cooling
or heating/cooling equipment manufacturer. If not available,
refer to the Typical Wiring Diagrams section at the end of
Disconnect the power supply before making wiring con-
nections to prevent electrical shock or equipment damage.
NOTE: All wiring must comply with local electrical codes
Wallplate (Heating or Cooling Systems)
Refer to Fig. 5 and strip the thermostat wire insulation as
For heating-only systems, connect wires to R, W, and C
terminals. For cooling-only systems, connect wires R, Y,
and C terminals. Firmly tighten the screws. The system low-
voltage transformer powers the timer (Fig. 11).
Push excess wire back into the wall.
Plug the hole in the wall with nonhardening caulk, putty,
or nonflammable insulation to prevent drafts from affecting
Subbase (Heating/Cooling Systems)
Refer to Fig. 5, and strip the thermostat wire insulation as
Connect the wires to the corresponding terminals on the
subbase. If labels do not agree with your new subbase, refer
to Table 2 and the installation instructions furnished with