Viessmann EM-EA1 Installation And Service Instructions Manual page 8

Information
Product information
Depending on the heat generator, a maximum of
3 EM-EA1 function extensions can be connected.
Only one function can be connected to each EM-EA1
function extension (DIO electronics module).
The functions that can be connected depend on the
settings made at the heat generator.
System examples
Available system examples: See www.viessmann-
schemes.com.
Spare parts lists
Information about spare parts can be found at
www.viessmann.com/etapp or in the Viessmann
spare part app.
8
Heat generator installation and service instruc-
tions