h) Emergency operation of the valve operating
mechanism
If an error occurs that cannot be
rectified immediately (e.g. because
the battery voltage of the heating
control or valve operating mecha-
nism is low and new batteries are
not at hand) it may be necessary to
operate the valve manually. To do
so, proceed as follows:
• Remove both batteries from the
valve operating
mechanism.
• Press down the adjusting pin at
the point
marked with (1) and remove it.
• Put the control pin onto the peg marked
with (2).
• Turn the adjusting pin:
- Clockwise = increase heat
- Counterclockwise = reduce heat
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