Technical data

188
Connection and wiring diagrams – Vitocontrol-S, VD2/CT3/CM2
Summary
A1 Mixing valve extension board
A2 Low voltage motherboard
A3 Line voltage motherboard
A4 Mixing valve extension
supplementary printed circuit
board
A5 Heating circuit selection buttons
printed circuit board
A6 Programming unit
A7 Printed circuit board
Optolink/override switch
A8 Supplementary printed circuit
board
A10 LON communication module
A11 Power supply unit printed circuit
board
A12 Boiler control unit
5351 340 v1.4