Nc Pcb - Viessmann VITOTRONIC 200 Service Instructions Manual

AVI PCB (only Vitocal 200-S)
Plug
P203
P301
P302
P303
P501

NC PCB

For use see chapter "Overview of the
PCBs".
Components
BUS connection (43 V~) to the external unit 4/7 kW
Note
■ Only one BUS connection must be connected.
■ These cores must not be interchanged.
Pressure sensor, liquid gas (PS)
Temperature sensor, liquid gas (IRT)
Flow temperature sensor, secondary circuit (LWT, installation
upstream of the instantaneous heating water heater)
KM BUS (connection with controller and sensor PCB)
97D 97C
PCBs and connection options
(cont.)
X3
4 3 2 1
X4
4 3 2 1
177