Selecting The Power Supply Type - Viessmann Vitotron 100 Series Installation And Operating Instructions Manual

Installation sequence

Selecting the power supply type

Rated output
Connection type to
electric system
4, 6, 8 kW
Type VMN3
FN MA RT
Type VLN3
MA RT
12
12, 16, 20, 24 kW
4, 6, 8 kW
Three-phase
Single-phase
A B
Tcyl Tos Tr
A B
Tcyl
If the electrical connection type is configured incorrectly,
e.g. using a single-phase installation at 12, 16, 20 and
24 kW, the configuration fault message "Configuration
fault" appears after commissioning the boiler.
Caution
Do not adjust switches 1 or 2! – Keep factory
settings. Adjust switch 3 according to the power
supply type (1 or 3-phase).