Viessmann EA1 - Table of Contents

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5774 470 - 02
EA1 Extension Module Installation
3
Safety
Important Precautions
General Information
Installation
Connections
Additional Information
Safety, Installation and Warranty Requirements..............2
Product documentation...........................................2
Licensed professional heating contractor...................2
Advice to owner....................................................2
Warranty...............................................................2
Important Regulatory and Installation Requirements........4
Approvals.............................................................4
Codes..................................................................4
Working on the equipment......................................4
Power supply........................................................4
About these Installation Instructions..............................5
Mounting the Extension Kit............................................6
Extension kit for installation on a wall......................6
Overview of Electrical Connections...............................7
Connecting Digital Inputs.............................................8
Connecting the Analog Input 0-10V............................10
Connecting the KM Bus to the Boiler Control Unit.........10
Connecting the Circulation Pump or a
Fault Message Facility...............................................11
Power Supply..........................................................12
Connection and Wiring Diagram.................................14
Specifications..........................................................15
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