Control Settings By The Contractor - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

Menu structure overview – main menu
Separate document; menu tree

Control settings by the contractor

Only those settings are described on
the following pages that are the
exclusive domain of specialists oper-
ating at the contractor level.
Customer level parameters that are
described in the operating instructions
are not explained here.
!
Please note
Incorrect operation at the con-
tractor level can result in
damage to the appliance and
the heating system. All modi-
fied values will be accepted
automatically.
Always observe the installation
instructions; failure to observe
these will void your warranty
rights.
Note
The contractor level remains active
until key "Standard display" is
pressed, or if no operation takes place
for 30 min.
A code must be entered to access the
contractor level.
Press the following keys:
1. "Standard display".
2. "BACK" to skip messages that
may be displayed.
3. "Device settings".
4. "Access rights".
5. "5243" as "Code".
6. "OK" twice to confirm.
7. "BACK" for "Main menu".
Note
& The parameters shown depend on
the current device settings.
& A four-digit identifier (ID) is allo-
cated to some parameters, e.g.
"Language" (7001).
Control settings
131