Rotary Switch S1; Connecting The Plusbus To The Heat Generator - Viessmann Solar EM-S1 Extension Installation And Service Instructions Manual

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Connections

Rotary Switch S1

Legend

A Extension (electronics module)

B PlusBus to heat generator

Solar EM-S1 Extension Installation / Service

The rotary switch is factory preset to 0.

Note: The rotary switch can be found on the PCB of the

electronics module.

For connection to heat generators with external

plug, luster terminals or spring-loaded terminals:

For the bus connection, disconnect plug jF. Connect

the wires directly. The wires are interchangeable.

Heat generator installation and service

instructions

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