Vaillant timeSWITCH 140, Operating And Installation Manual

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Operating and installation manual timeSWITCH 140 two-channel timer with week programme / 838312_03
GB
9 Start-up
• Switch on the boiler.
• Start up the boiler in accordance with
the operating and installation manual
of the boiler.
You should activate the calendar on the
installer level to enable automatic sum-
mer/winter changeover.
A further operating level, the service
and diagnostics level, which is intended
only for heating engineers, is stored for
support in service and diagnostic cases.
9.1 Installer level (calendar)
Activate the calendar by setting the
current date:
• Press the programme button “P” for
about 10 seconds to activate the
installer level.
The spanner symbol appears on the display.
The set day (“Day”) is displayed.
You can now set the calendar
(see table 9.1).
Start-up 9