Connection And Wiring Diagram - Viessmann EA1 Installation Instructions And Operators Manual

Connections

Connection and Wiring Diagram

Legend
DE1 Digital input 1
DE2 Digital input 2
DE3 Digital input 3
0 - 10 V 0 - 10 V input
A Extension EA1
Power supply
fÖ
fÖA Power supply for additional accessories
aBJ Fault message facility/Feed pump/DHW circulation
pump (floating)
KM BUS to the control unit
aVG
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EA1 Extension Module Installation