Overview Of Electrical Connections - Viessmann Vitotronic 200 Installation And Service Instructions Manual

Overview of electrical connections

Note
When connecting plugs aVD, aVH, sA and sK, bundle the individual cores of the
cables closely to the terminals.
This ensures that, in case of failure, for example when detaching a wire, the
wires cannot drift into the adjacent voltage area.
Main PCB low voltage
! Outside temperature sensor
§ Boiler water temperature sen-
sor
% Cylinder temperature sensor/
cylinder temperature sensor 2
for cylinder primary system
(accessories)
Installation sequence
aG Flue gas temperature sensor
(accessories)
aJA Therm-Control temperature
sensor
or
Return temperature sensor T1
(accessories)
15