INSTALLING AND REPLACING BATTERIES
Installing or replacing the ST320RF Control Centre batteries is
a straightforward operation, but does require you to open the
case of the thermostat.
To open the ST320RF case, undo the securing screw on the
bottom of the case (just to the right of the hole for the Reset
Button):
After undoing the screw pull it forward until the screw stops
moving, then carefully separate the two halves of the case
by gently pulling in an upwards direction. Once the case has
been separated, the batteries should be visible:
Ensure that the batteries are inserted correctly, paying
careful attention to the polarity markings on the battery and
next to the battery holders. After inserting the batteries, refit
the ST320RF case and retighten the securing screw.
7ST320RF INSTRUCTION MANUAL