Danfoss ECL 2000 Bedienungsanleitung

User’s Guide

ECL 2000

11-99 EY.65.H4.02

User’s Guide

ECL 2000

Danfoss A/S

EY.65.H4.02

ECL 2000

EY.65.H4.02

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss re-

serves the right to alter its products without notice. This also applies to products already on order provided that such al-

terations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in

this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss

This manual replaces the ECL 2000 User’s Guide of April 1999.

Danfoss A/S ID: EY.65.H4.02

DK-6430 Nordborg Date: November 1999

Denmark

Phone: +45 74 88 22 22

Contents

EY.65.H4.02 iii

TABLE OF CONTENTS

1. INTRODUCTION 1

1.1 What Is In This Guide? 1

1.2 Getting Started With the ECL 2000 1

2. INTRODUCING THE ECL 2000 3

2.1 What is the ECL 2000? 3

2.2 Operating Modes 3

2.3 Circuit Functions 4

2.4 Time Programming 4

2.5 Other Functions 4

3. OPERATING THE ECL 2000 5

3.1 The Front Panel 5

3.2 Front Panel Push-buttons 6

3.3 Display Icons 7

4. DAY-TO-DAY OPERATION 9

4.1 About This Chapter 9

4.2 System Overview 10

4.3 Selecting a Circuit. Viewing Circuit Status 12

4.4 Changing Comfort and Night Setback Temperature Settings 14

4.5 Changing the Operating Mode 15

5. TIME PROGRAMMING 16

5.1 Extending the Comfort or Night Setback Period 16

5.2 Setting the 7-Day Plan 17

5.3 Setting the Holiday Plan 18

6. ENTERING THE ACCESS CODE 20

7. WEATHER COMPENSATION CURVES 21

7.1 Adjusting the Flow Temperature Curve 22

7.2 Adjusting the Return Temperature Curve 23

8. CONFIGURING THE ECL 2000 25

8.1 Starting the ECL 2000 for the First Time 25

8.2 ECL 2000 Types 25

8.3 Selecting an Application 26

8.4 Configuring Inputs and Outputs 27

8.4.1 Operating Configuration Pictures 27

8.4.2 Sensor Inputs 30

8.4.3 LON Inputs 32

8.4.4 Relay Output 33

8.5 Overview of ECL 2000 Applications 34

9. MANUAL OVERRIDE 36

Contents

EY.65.H4.02

10. SERVICE SETTINGS 38

10.1 Operating Service Menus 39

10.2 Heat Circuit Functions 41

10.2.1 Building Settings 41

Optimizer 42

10.2.2 Pump/Valve Settings 45

10.2.3 PI Constant Settings 47

10.2.4 Limiter 48

10.3 Hot-water Circuit Functions 51

10.3.1 Hot Water Settings 52

10.3.2 Pump/Valve Settings 56

10.3.3 PI Constant Settings 58

10.3.4 Limiter 59

10.4 Common Functions 62

10.4.1 Set Clock 64

10.4.2 Alarm Status 65

10.4.3 Alarm Setup 66

10.4.4 Log Today, Log Yesterday 67

10.4.5 Override 68

10.4.6 Communication 70

10.4.7 Sensors 71

10.4.8 Degree Days 72

10.4.9 Access Code 72

10.4.10 Energy Consumption 73

10.4.11 Language 74

10.4.12 Version 74

APPENDIX A. DISPLAY CHARTS 75

A.1 Setting the Operating Mode 75

A.2 System Overview. Selecting a Circuit. Viewing Circuit Status 76

A.3 Time Programming 77

A.4 Weather Compensation Curves 78

A.5 Configuring the ECL 2000 79

A.6 Manual Override 80

APPENDIX B. SERVICE MENUS 81

B.1 Heat Circuit Menus 81

B.2 Hot-Water Service Menus 82

B.3 Common Function Menus 83

APPENDIX C. LOG DISPLAYS 87

GLOSSARY 89

REFERENCES 93

INDEX 95

Introduction

EY.65.H4.02 1

1. INTRODUCTION

1.1 What Is In This Guide?

This Guide is for the ECL 2000 district heating temperature controller. The purpose

of the Guide is to describe the functionality of the ECL 2000 and to enable users to

operate the controller from the front panel.

Chapter 2-7 provide information regarding the day-to-day usage of the controller.

Chapter 8-10 provide information intended for project and service engineers, for

example about configuring the ECL 2000 and using service menus to modify the setup

of the controller. Appendix A contains a number of charts providing an overview of

the ECL 2000’s display pictures. Appendix B provides a similar listing of the ECL

2000’s service menus. Appendix C provides a list of the data displayed in the ECL

2000’s Log pictures. At the end of the Guide, you find a glossary, a list of references

and an index.

1.2 Getting Started With the ECL 2000

Instructions for installing the ECL 2000 are provided in the ECL 2000 Installation

Guide (ref. [2]). After the controller has been installed, it must be configured. This

step consists of selecting an application (i.e. a system type) and, if the selected

application allows this, configuring inputs and outputs. Instructions for this start on

page 25 of this Guide.

Introduction

EY.65.H4.02

This page is intentionally left blank

Introducing the ECL 2000

EY.65.H4.02 3

2. INTRODUCING THE ECL 2000

2.1 What is the ECL 2000?

The ECL 2000 is a micro-processor based controller used for temperature control and

regulation in district heating systems and for mixing control in boiler systems.

The controller can be used for weather compensation and control in the following

types of systems:

•Two parallel district heating circuits

•Two heat circuits and one hot-water circuit

•Two separate weather compensated heat circuits

•Two heat circuits combined with hot-water tank control.

Two types of ECL 2000 are available with different input/output configurations.

ECL 2000 Type 1 is supplied with 14 pre-programmed applications (i.e. 14 standard

system setups). Type 2 has 17 pre-programmed applications. The ECL 2000’s built-in

applications cover a wide variety of commonly used central heating configurations.

See page 25 for further information.

2.2 Operating Modes

The controller can operate in 4 different modes:

•Automatic

•Comfort

•Night setback

•Stand-by.

In Automatic mode, the controller alternates between two temperature setpoints: com-

fort and night setback. The flow temperature of a heat circuit and the hot-water tem-

perature are kept at either comfort or night setback temperature, according to a user-

defined 7-day plan.

In Comfort mode, flow and hot-water temperatures are maintained at daytime level.

In Night setback mode, the plant is maintained at night setback temperature, which is

normally lower than the comfort temperature.

Note:

The controller can be in night setback mode even during the daytime, for example

over the week-end.

In Stand-by mode, heating is off, but the plant is frost-protected at 6 °C.

Introducing the ECL 2000

EY.65.H4.02

2.3 Circuit Functions

Heat circuit functionality includes weather compensation of flow temperature ac-

cording to outdoor temperature, sun intensity and wind velocity, outdoor temperature

dependant return temperature limiting, PI control of valve motors, as well as an

optimizer facility that will save energy by calculating optimum pre-heat and cooling

times for the plant. If a room temperature sensor is fitted, the optimizer is adaptive.

Hot-water circuit facilities include PI control of valve motors, return temperature lim-

iting and an anti-bacteria function.

The ECL 2000 has a built-in timer function with a year clock, which can be used to

switch on and off an external device according to a 7-day, 24-hour program.

2.4 Time Programming

The ECL 2000’s time programming facility lets you set up an individual 7-day, 24-

hour program for each of the circuits being controlled.

The ‘party function’ allows the ECL 2000 to override the 24-hour program and keep

one or more circuits at comfort temperature for a prolonged period of time, for exam-

ple until later in the evening than normally. The economy function lets the ECL 2000

keep the plant at night setback temperature longer than normally.

You can also pre-program a holiday period during which the controller will follow a

different 24-hour schedule than under normal conditions.

2.5 Other Functions

The controller includes a Manual Override facility that disables all automatic control,

allowing for manual control of circuit components (pumps and valve motors).

The controller’s alarm system lets you define conditions that will cause an alarm. You

can monitor the alarm status by displaying the controller’s alarm log and one relay

output can be defined as an alarm output.

The ECL 2000 also includes facilities for logging measured data and displaying this

graphically, as well as for calculating degree days.

LON (Local Operating Network) communication is available as an option. This facil-

ity enables the ECL 2000 to communicate via LON with other ECL 2000 controllers

and devices such as heatmeters.

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