Connection And Wiring Diagram - Viessmann Vitodens 222-F Installation Instructions Manual

Connection and wiring diagram

? Flow temperature sensor
aJ No function
sÖ Heating circuit pump
fÖ Power supply
fÖA Power outlet
gS Mixer motor
16
aVG KM BUS
A1 Main PCB
A2 PCB
S1 DIP switch (settings in the deliv-
ered condition)
X ... Electrical interfaces