Viessmann VITOCAL 200-G Installation And Service Instructions Manual page 69

Further details regarding the individual steps
Commissioning without the commissioning assistant
Enabling the service menu
The service menu can be enabled from
any menu.
Press OK + å simultaneously for
approx. 4 s.
Disabling the service menu
The service menu remains active until it
is disabled with "Terminate service?",
or if no operation takes place for 30
minutes.
Setting parameters using the "Sys-
tem scheme" example
To set a parameter, first select the
parameter group and then the parame-
ters.
All parameters are displayed as plain
text. A parameter code is also assigned
to each parameter.
Required parameters for components connected on site
Detailed explanations regard-
ing parameters
Service instructions for Vitotronic
200 heat pump control unit
Commissioning, inspection, maintenance
(cont.)
Service menu:
1. Press OK + å simultaneously for
approx. 4 s
2. Select "Coding level 1"
3. Select parameter group: "System
definition"
4. Select parameter: "System scheme
7000"
5. Set system scheme: "6"
Alternatively, if the service menu was
already enabled:
Extended menu
1. å
2. "Service"
3. Select "Coding level 1"
4. Select parameter group: "System
definition"
5. Select parameter: "System scheme"
6. Confirm parameter code: "7000"
7. Set system scheme: "6"
69