Connection And Wiring Diagram - Viessmann Vitotronic 300 GW6B Installation Instructions Manual

Diagrams
Vitotronic 300, GW6B Installation and Service

Connection and Wiring Diagram

Overview
A1 PCB, extension for heating circuits 2 and 3 with mixing valve
A2 PCB, low voltage
A3 PCB 120 V~
A6 Programming unit connection PCB
A7 Optolink PCB/emissions test switch
A8 PCB
A9 Coding card
A10 LON communication module
A11 Power supply unit PCB
A12 Programming unit ON/OFF switch
A13 Programming unit
X Electrical interfaces
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