Viessmann EM-EA1 extension Installation And Service Instructions Manual page 6

Information
Product information
Maximum 3 EM-EA1 function extensions can be con-
nected to one heat generator.
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 on the
Viessmann spare parts app.
6
Heat generator installation and service instruc-
tions