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Your ST9120C should have been set up to work correctly when it was installed.
However, the following will show you how you can modify your settings to meet
your particular lifestyle.
To assist you with programming and everyday use your ST9120C will display text
messages at every stage to help you get the most out of your central heating system.
The ST9120C uses LoT™ Technology to constantly update the display to give you
feedback about what is required.
Step 1: Setting the Date & Time
Your ST9120C had the date and time set at the factory, and these are normally
maintained by a backup battery in the event of power failures. If you wish to change
the date or time, or if the LoT™ Display shows the message ‘SET DATE + TIME’ just
follow the instructions below. Otherwise, go to Step 2.
a. Move the slider to the DAY/TIME position. The message ‘SET DATE + TIME’ will
show briefly on the screen, followed by ‘SET THE DAY’, and the day of the month
will now be flashing to indicate it can be changed.
GETTING STARTED WITH YOUR ST9120C
DAY/TIME
PROGRAMME
RUN
6


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