Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 126

Diagnosis and service scans
Loading the standard setting
4. / For "Standard setting"
| ~
5. To confirm
d
6. / To select
| ~
7. To confirm
d
126
(cont.)
8.
|
9.
d
10.
ä
/ For "Yes"
~
To confirm
Until the default display is shown.