Table of Contents
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Installation Instructions
for use by heating contractor
EA1 Extension Module
for programmable inputs and outputs
EA1
Extension Module
Certified as a component
part for Viessmann boilers
5774 470 - 02 03/2015
Product may not be exactly as shown
IMPORTANT
Read and save these instructions
for future reference
.
Please file in Service Binder
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Table of Contents
Related Manuals for Viessmann EA1
Summary of Contents for Viessmann EA1
- Page 1 Installation Instructions for use by heating contractor EA1 Extension Module for programmable inputs and outputs Extension Module Product may not be exactly as shown IMPORTANT Read and save these instructions Certified as a component for future reference part for Viessmann boilers...
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Page 2: Safety, Installation And Warranty Requirements
Safety EA1 Extension Module Installation Safety, Installation and Warranty Requirements Safety, Installation and Warranty Requirements Please ensure that these instructions are read and understood before commencing installation. Failure to comply with the instructions listed below and details printed in this manual can cause product/property damage, severe personal injury, and/or loss of life. -
Page 3: Table Of Contents
Table of Contents EA1 Extension Module Installation Page Page Safety 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 Important Precautions Approvals.............4 Codes..............4 Working on the equipment........4 Power supply............4 About these Installation Instructions......5... -
Page 4: Important Regulatory And Installation Requirements
Please carefully read this manual prior to attempting Approvals installation. Any warranty is null and void if these Viessmann boilers, burners and controls are approved for instructions are not followed. sale in North America by CSA International. For information regarding other Viessmann System... -
Page 5: About These Installation Instructions
General Information EA1 Extension Module Installation About these Installation Instructions Take note of all symbols and notations intended to draw attention to potential hazards or important product information. Indicates an imminently hazardous situation which, WARNING if not avoided, could result in death, serious injury or substantial product/property damage. -
Page 6: Mounting The Extension Kit
Installation Installation Instructions Extension EA1 Mounting the Extension Kit Extension kit for installation on a wall 1. Loosen the retaining screws from the extension kit encloser (do not remove) . 2. Remove cover and set aside. 3. Mount the extension module enclosure to the wall using the supplied hardware. -
Page 7: Overview Of Electrical Connections
Connections EA1 Extension Module Installation Overview of Electrical Connections CAUTION Legend Digital input 1 The electronic modules are static Digital input 2 sensitive. To avoid damage caused by Digital input 3 static discharge, follow Electro-Static Discharge safety procedures. 0 - 10 V 0 - 10 V input Power supply fÖ... -
Page 8: Connecting Digital Inputs
Connections EA1 Extension Module Installation Connecting Digital Inputs The following functions can be connected alternatively: H External heating program changeover for each heating circuit H External blocking H External blocking with central fault message H External demand with set flow temperature... - Page 9 Connections EA1 Extension Module Installation Connecting Digital Inputs (continued) Assigning the heating program changeover function to the heating circuits Assign the heating program changeover function for the respective heating circuit via code d8 at the boiler control unit: H Changeover via input DE1: Code d8:1...
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Page 10: Connecting The Analog Input 0-10V
Connections EA1 Extension Module Installation Connecting the Analog Input 0-10V The 0 - 10V hook-up provides an additional set boiler water temperature: 0 - 1V seen as “no default set boiler water temperature” set value 50°F (10°C) set value 212°F (100°C) On the Vitotronic, type G ... - Page 11 Connecting the KM BUS to the Extension Modules Legend A Boiler control unit B Extension kit for heating circuit with mixing valve M2 C Extension kit for heating circuit with mixing valve M3 D Extension AM1, EA1 and/or solar control module, type SM1...
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Page 12: Connecting The Circulation Pump Or A Fault Message Facility
Refer to the boiler Service Instructions If the relay of output aBJ is switched, contact P-Ö is open. If a fault occurs at extension EA1 or communication is interrupted, contact P-Ö is closed. Note: If a fault message facility is connected, this will... -
Page 13: Power Supply
Connections EA1 Extension Module Installation Power Supply (continued) Direct power supply WARNING Incorrectly executed electrical installations can result in injuries from electrical current and in equipment damage. Connect the power supply (see page 2) and implement all grounding measures (e.g. RCD circuit) in accordance... -
Page 14: Connection And Wiring Diagram
Connections EA1 Extension Module Installation Connection and Wiring Diagram Legend Digital input 1 Digital input 2 Digital input 3 0 - 10 V 0 - 10 V input Extension EA1 Power supply fÖ fÖA Power supply for additional accessories Fault message facility/Feed pump/DHW circulation... -
Page 15: Specifications
Additional Information EA1 Extension Module Installation Specifications Rated voltage 120 V~ Rated frequency 60 Hz Rated current Power consumption 1.5W Protection class Permissible ambient temperature H During operation 32 to 104°F (0 to 40°C) H During storage and transport -4 to +149°F (–20 to +65°C) - Page 16 Installation Instructions Extension EA1 Scan for digital copy of this document...
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