Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 85

Vitotronic 200 and 300-K Installation and Service
Connection and Wiring Diagrams
Main PCB LV
Legend
Outside temperature sensor
!
§/? Common supply temperature sensor
%A DHW tank temperature sensor
%B DHW tank temperature sensor 2 (accessory)
aJB Temperature sensor primary store system
aVD External hook-up
KM BUS participant (accessory)
aVG
aVH External hook-up
(continued)
LON Cable for data exchange between control units
(accessories)
S3 Emissions test switch "
V1 Fault indicator (red)
V2 ON indicator (green)
X... Electrical interfaces
Designs
"
S
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