Viessmann CS Installation And Operating Instructions Manual page 29

DCF signal (radio clock):
With a DCF antenna connected, the DCF signal can be
observed via parameter P28.
The display shows the running seconds, with the the
100th-placed decimal point blinking with the applied
signal.
When the clock time is correctly identified 2 time in a
row, then "dCF" appears momentarily in the display and
the clock time is taken over.
The display will not be reset during the display of the
DCF signal.
The current clock time can be read in the parameters
P10 [hrs] and P11 [min].
Temperature sensor adaptation:
The temperature sensor can be aligned via the
parameters P86 to P88.
Example:
The coldroom temperature indicated in the display is
-15°C, while the measured coldroom value is -18°C; this
means the display must indicate 3K less. Accordingly,
the value of parameter P86 must be reduced by 3. If the
display is lower than the indicated value, then P86 must
be increased by the difference.
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page No. 29-GB
8.5.2
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