Viessmann VITOPEND 200, Installation And Service Instructions For Contractors

Page: 21 / 132

Venting the heating system
1. Start the control unit.
2. Activate the venting program via
code "2F:1".
Note
To call up coding level 1 and for
setting the coding address, see
page 53.
For function and sequence of the
venting program, see page 106.
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.
Further details regarding the individual steps
(cont.)
21
Commissioning, inspection, maintenance
5592
817
GB
Service