Venting the heating system
1. Start the control unit.
2. Activate the venting program via
coding address "2F:1".
Note
To call up coding level 1 and for
setting the coding address, see
page 52
For function and sequence of the
venting program, see page 105.
Whilst the venting program is run-
ning, the display shows "EL"
(Vitotronic 100) or "Entlüftung"
(venting) (Vitotronic 200).
3. Check the system pressure.
Setting the time and date (if required) – only for weather-
compensated control units
Note
&
During commissioning, or after a
prolonged time out of use, it may be
necessary to reset the time and
date, if the time flashes in the dis-
play.
&
During commissioning these terms
appear in German (delivered condi-
tion):
Time (see step 1)
Date (see step 2)
Press the following keys:
1. a/b for the current time.
2. d to confirm; "Datum" (date)
is displayed.
3. a/b for the current date.
4. d to confirm.
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