Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 80

Commissioning, inspection, maintenance
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 heat pump parameters
"Output compressor stage 5030"
During commissioning, the heating out-
put of the heat pump must be set subject
to type.
Vitocal 242-S, type AWT-AC
"Output compressor stage
5030"
80
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"
241.A04 241.A07
4 kW
(cont.)
241.A10
241.B10
7 kW 10 kW
241.A13
241.B13
13 kW