8 69-1385
Step 3. Install Batteries
IMPORTANT
Batteries must be installed for the pro-
gramming and operation of the ther-
mostat and heating/cooling system.
❑
Purchase two AA alkaline batteries; non-
alkaline batteries do not last as long, and
can leak, causing damage to the thermostat
or the wall surface. We recommend
Energizer® batteries.
❑
Open the top cover of thermostat to access
control panel and battery compartment.
❑
Make sure the thermostat is set to the Off
position.
❑
Use a coin to remove the battery cover.
M12492
REMOVING
BATTERY
DOOR
BATTERY
DOOR COVER
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