VI.KN.Y2.02 © Danfoss 08/2008 DH-SMT/DK
Instructions ECA 73, M-Bus combi module for the ECL Comfort 300S
Table of Contents
1. Introduction 1
1.1 How to read these instructions ..............................................................................................................................................................................................1
1.2 Delivery scope ..............................................................................................................................................................................................................................1
1.3 What to use the product for ....................................................................................................................................................................................................1
1.3.1 Communication ............................................................................................................................................................................................................................1
1.3.2 Input configuration .....................................................................................................................................................................................................................2
1.3.3 Pulse input configuration .........................................................................................................................................................................................................2
1.4 Compatibility .................................................................................................................................................................................................................................3
2. Configuration 3
2.1 Network description ...................................................................................................................................................................................................................3
2.2 Mounting and wiring of the ECA 73 .....................................................................................................................................................................................4
2.3 Communication cable types ...................................................................................................................................................................................................6
2.4 Installation of heat meters .......................................................................................................................................................................................................6
2.5 Setting the service parameters of the ECL Comfort controller ..................................................................................................................................6
2.5.1 Setting time constants ...............................................................................................................................................................................................................8
2.5.2 Setting desired flow or energy ...............................................................................................................................................................................................8
2.5.3 M-Bus addresses ..........................................................................................................................................................................................................................9
2.5.4 Reading measured data ..........................................................................................................................................................................................................10
2.5.5 M-Bus values ................................................................................................................................................................................................................................10
3. Trouble-shooting 12
3.1 What to expect ...........................................................................................................................................................................................................................12
3.2 Error conditions ..........................................................................................................................................................................................................................12
3.2.1 Symptoms .....................................................................................................................................................................................................................................12
3.2.2 Causes ............................................................................................................................................................................................................................................12
3.3 Tips ..................................................................................................................................................................................................................................................13
4. Dismounting 13