44043-01 • 02/19/2010
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CAUTION: Do not remove any wiring from existing thermostat before reading
the instructions carefully. Wires must be labeled prior to removal.
IMPORTANT! Turn off the power to the furnace at the main power panel or
at the furnace.
Remove existing thermostat cover and thermostat. See Figure 1. Some thermostats
will have screws or other locking devices that must rst be removed. Once the
wall mounting plate is exposed, look for wires.
If wires are not visible, they may be connected to the back of the wallplate. Again,
look for screws, tabs, etc. Some models have doors that open to expose wires
and mounting screws.
2
Installation
Remove Old ermostat
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