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■
Match and connect the labeled wires to the appropriate
coded terminal screws on the mounting plate. (See
Figure 4, 5.) Ignore any wires which may be present,
but which were not connected to the old thermostat.
■
Be sure to tighten the terminal screws securely, otherwise
a loose wire could cause operational problems with your
system or thermostat.
■
Push excess wire back into hole to prevent interference
with mounting of the thermostat cover.
■
Make sure the System Switch is set to OFF, and the
FAN-AUTO Switch is in AUTO.
■
If your system has an O or B wire, you must move the
Heat Pump selector switch to the appropriate position.
Refer to the next page for more information.
■
Insert the bottom tab on the thermostat body into the
slot at the bottom of the wallplate. Press top of the
thermostat body to snap it into the wallplate. (NOTE:
Do not force the thermostat onto the wallplate, as
the terminal pins may be damaged. If it does not
snap properly, the thermostat may not work.)
■
Insert the two AA size alkaline batteries, observing the
polarity marked on the unit.
■
Switch on the main power at the panel or furnace.
FIGURE 4
FIGURE 5
x
x
x
+
+
+
W RH RC G Y/Y1 O/B
RH
RH
Connect Wires and Mount Thermostat Cover to Wall Plate
B99A p1-19 2/7/03 9:58 AM Page 13
