Connection And Wiring Diagram; Overview - Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual

Digital boiler control unit for use with boiler models vd2a, vd2 and ct3
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Designs
Vitotronic 100, GC1B Installation and Service

Connection and Wiring Diagram

Overview

Legend
A2 Main PCB low voltage
A3 Main PCB 120V~
A6 Programming unit
A7 Optolink PCB/emissions test switch
A8 PCB
A9 Boiler coding card
A10 LON communication module (accessory)
A11 Power supply unit PCB
A12 ON/OFF switch
X
Electrical interfaces
113

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