ST625TX INSTRUCTION MANUAL
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1. INSTALLATION
ST625TX Programmable Room Thermostat
Getting Started…….
Installing the ST625TX Batteries
To open the case of the ST620, undo the securing screw
on the bottom.
Now pull the screw down until it stops, then carefully separate
the two halves of the case by gently pulling out an upwards
direction. You will now see the battery compartments on the
rear of the front fascia as shown.
Ensure that the batteries are inserted correctly and check the
polarity.