Viessmann Vitoligno 300-P Service Instructions For Contractors page 102

Troubleshooting
Repairs
(cont.)
DIP switch
1 ON
2 ON
3 OFF
4 ON
4 OFF
Note
Amongst switches 1 to 3, only one
switch may be set to "ON".
102
Function
Reduced mode, heating circuit 1 with mixer M1
Reduced mode, heating circuit 2 with mixer M2
—
0 to 100 °C
30 to 120 °C