TB3 SERIES COMMUNICATING THERMOSTATS INSTALLATION INSTRUCTIONS
23 31-00576-01
SAFE BATTERY REMOVAL
1. Switch OFF the power supply before initiating the
TB3 installation.
2. Loosen the bottom screw by turning it anticlockwise
with the help of a screwdriver.
3. Separate the front and back plate.
4. Unscrew four screws to remove the back cover from
the front plate.
5. Using a screwdriver, gently release four latches.
6. Remove the battery from the battery holder and
replace the battery.
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