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EM-EA1 extension
Viessmann EM-EA1 extension - User Manual
24 pages
Manual
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Installation and service instructions
for contractors
VIESMANN
EM-EA1 extension
DIO electronics module
Function extension
EM-EA1 extension
6131087 GB
6/2019
Please keep safe.
2
Table of Contents
Main Page
Table of Contents
4
Overview of Electrical Connections
7
Electrical Connections
8
Connecting External Functions
8
Connecting External Default Set Flow Temperature: 0 - 10 V in
8
Connecting an External Default Output: 0 - 10 V in
9
Connecting the Operating Mode Changeover: DI1 to DI3
10
Connecting External Demand: Fd
10
Connecting External Blocking: Fd
11
Connecting the Fault Message Input and Fault Message Output
11
Connection Without System Blocking Via 230 V Fault Message Input: Fd
11
Connection with System Blocking Via 230 V Fault Message Input
12
Connection with System Blocking Via 24 V Fault Message Input: DI1
12
Connecting Only Message Facility: Hh
13
Connecting the External LPG Valve: Fd
13
Connecting the External Extractor Interlock
13
Connecting the Plusbus to the Heat Generator
14
Power Supply
14
Power Supply at Heat Generator
14
Separate Power Supply
14
Rotary Switch S1 for Subscriber Number Addressing
17
Configuring Functions
17
Final Decommissioning and Disposal
20
Declaration of Conformity
21
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Viessmann EM-EA1 extension Specifications
General
Brand
Viessmann
Model
EM-EA1 extension
Category
Control Unit
Language
English
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