Danfoss ERC 102 User Manual

www.danfoss.com/erc
This reference manual is intended to be used primarily by OEMs for the purposes of programming ERC 102.
It may also be useful for technicians. It is not intended as a user guide for end users.
ERC 102 refrigeration controller
Reference manual
MAKING MODERN LIVING POSSIBLE

Danfoss ERC 102 Specifications

General

Type	Electronic refrigeration controller
Digital inputs	1
Enclosure rating	IP20
Application	Refrigeration
Temperature sensor type	NTC
Relative humidity	20% to 80% non-condensing
Weight	0.15 kg
Relay outputs	3 (Compressor, Fan, Defrost)

Summary

1. INTRODUCTION

2. CONTENT OF THE BOX

2.1 Main product

Describes the ERC 102 control unit without front frame.

2.2 Accessories

Lists and describes the included accessories for the ERC 102 controller.

2.3 Connections

3. OVERVIEW OF THE PRODUCT

3.1 Control buttons

Describes the four control buttons on the front panel of the ERC 102.

3.2 Connector inputs

Details the analogue and digital inputs for connecting sensors and communication.

3.3 Connector outputs

3.4 Top label

4. MOUNTING

4.1 Rear mounting – Option 1

Step-by-step guide for rear mounting the ERC 102 controller.

4.1.1 Unmounting

4.2 Front mounting – Option 2

4.2.1 Unmounting

4.3 Fully integrated design – Option 3

5. CONTROLLING / NAVIGATION AND ACCESS LEVELS

5.1 KoolProg/Gateway

Details on using Danfoss KoolProg software for parameter setup.

5.2 Docking station

Information regarding the Danfoss docking station for controller setup.

5.3 Manual operation with buttons (Direct Access)

Explains how to operate and navigate the controller using its buttons.

5.3.2 Direct functions for access

5.3.3 Operating the menu

Example of Changing a Parameter

5.3.4 Menu structure

5.3.5 Password protection

6. CONFIGURATION OF INPUTS AND OUTPUTS

6.1 Changing input and output configuration settings

Guides on defining sensor types and their applications for inputs/outputs.

6.2 Program the buttons

6.3 Set passwords

6.4 Set lighting function

7. PARAMETERS

7.1 Thermostat / tHE

Describes thermostat parameters like set point, differential, and limits.

7.2 Alarms / ALA

7.3 Compressor / CoP

7.4 Defrost / dEF

7.5 Fan / FAn

7.6 Energy Management / Eng

7.7 Pull Down / Pud

7.8 Automatic Heater Control / AHC

7.9 Condenser Protection / Con

7.10 Display / dis

7.11 Assignments / ASi

7.12 Service Information / Ser

8. TECHNICAL SPECS

APPENDIX I: PARAMETER QUICK LIST

Thermostat settings

Quick reference for thermostat parameters and their ERC menu codes.

Alarm settings

Quick reference for alarm parameters and their ERC menu codes.

Compressor settings

Quick reference for compressor parameters and their ERC menu codes.

Defrost Settings

Fan settings

Energy Management

Pull Down settings

Auto-Heater settings

Condenser protection settings

Display settings

Assignment of inputs and outputs

Button configurations

Password and light settings

Service Information

APPENDIX II: CODE NUMBERS AND LENGHTS

APPENDIX III: TROUBLESHOOTING

IV.1 ERC 102D Glass Door Merchandiser

IV.2 ERC 102C Glass Door Merchandiser

IV.3 ERC 102D Gastro No-frost freezer

IV.4 ERC 102C Gastro Cooler

APPENDIX V: APPLICATION SPECIFICATON

V.1 Control sensor

Details on control sensor placement for various cooler types (with/without fan).

V.2 Evaporator sensor

V.3 Condenser sensor

V.4 Ambient light sensor

V.5 Door sensor

ERC102 Application Matrix