Technical data

189
Connection and wiring diagrams – Vitocontrol-S, VD2/CT3/CM2
Low voltage motherboard
! Outdoor temperature sensor
? Common supply temperature
sensor
§ No function
% DHW tank temperature sensor
aJA Temperature sensor T1
aJB Temperature sensor T2
aVD Connection for external
equipment
aVG KM BUS
aVH Connection for external
equipment
LON Interconnecting cable for data
transfer between control units
S3 Override switch S
V1 Fault indicator (red)
V2 ON/OFF indicator (green)
5351 340 v1.4
.
.
34-pin