Viessmann EA1 - Connection and Wiring Diagram

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