Danfoss ERC 112 User guide

User Guide

Electronic Refrigeration Controller

ERC 112

This user guide is intended to be used by OEMs for the purpose of
programming ERC 112. It may also be useful for technicians. However, it is not
intended as a user guide for end users.

www.danfoss.com/erc

User Guide | ERC 112 Refrigeration Controller

Introduction

Application

Advantages

Approvals

Temperature control for refrigeration appliances.
Front panel mounting.

The latest generation CPU, plenty of memory
and high-end electronic components allow for
a uniquely versatile software. Three separate
password-protected user levels can be used to
control more than 300 different parameters to fit
all individual requirements.

R290/R600a end-use applications employing in
accordance to EN/IEC 60335-2-24, annex CC and
EN/IEC 60335-2-89, annex BB;

Glow wire according to EN/IEC 60335-1;

IEC/EN 60730

UL60730

NSF

CQC
EAC
Ukraine

Password protected

The access level can be set separately for each
parameter using KoolProg KoolProg Software.
There are three levels of access 1, 2, 3:

- level 1 is for shop access;

- level 2 for technicians;

- level 3 for OEMs.
The access levels cannot be set using the buttons.
Passwords for the different levels can however be
altered for the level of access you have,
e.g. a level 2 user can change the password for
level 1 and level 2 but not level 3.

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User Guide | ERC 112 Refrigeration Controller

Typical application

Glass Door Merchandiser
No-frost freezer/sub-zero cooler

S3, S4 are optional

Gastro
No-frost freezer/Cooler

S2, S3, S4 are optional

S3, S4 are optional

S2, S3, S4 are optional

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User Guide | ERC 112 Refrigeration Controller

Product overview

Display

Buttons

/
/

Clips Are used to secure the controller in place in the

Front frame The front frame provides a proper finish but can

/

The ERC 112 is an electronic refrigeration
controller with an LED display especially
developed for bottle coolers and commercial
fridges and freezers. It is particularly suited for
OEM customers where time, easy and reliable
installation and high quality need to go hand in
hand with flexibility.
The display can be ordered in red or blue.
The controller is available with the upper left
button as "ECO" or "Defrost ".
The lower left-button can be supplied with
"Light", "Stand by" or "Super chill".

case of rear mounting. They are not used with
front mounting.
There are two identical clips, one placed on
either side of the controller.

also be used to secure the controller in place
when using front mounting. In this case, clamps
are not required. Contact Danfoss for details.

"S1"

Temperature sensor for
cabinet

"S2"

Temperature sensor for
defrost

"S3"

Temperature sensor for
condenser, light sensor or
Motion sensor

"S4"

Temperature sensor
Pt 1000 ohm/0°C
or door signal

"di"

Door signal or
Motion sensor

Controlle r without front fr ame Front frame

Control temperature sensor

There are different lengths.

Defrost temperature sensor

Should be mounted on the evaporator.

Condenser temperature sensor

Should be mounted on the condenser.

Light sensor

Is optional and is used to measure the level of
ambient light around the cabinet so that night
and day "Economy", "Normal" modes of operation
can automatically be set, as well as the brightness
of the display.

Motion sensor

Should be mounted on the cabinet front.

Door sensor connector cable

Is optional and is a connector and cable with

spade terminals compatible with door contacts
used in refrigeration applications.

The function of an input can be reprogrammed,
but the connector can not be moved.
The connector is designed to only one location.
"S1" to "S1", " S2" to "S2", etc.

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User Guide | ERC 112 Refrigeration Controller

Quick programming

Software for PC

USB gateway

USB programming key

KoolProg

Software from Danfoss for programming the
ERC-controller via a PC rather than with the front
panel buttons.

https://www.danfoss.com/en/service-and­support/downloads/dcs/koolprog/

USB gateway

The USB Gateway is a laboratory tool, offering
fast and easy programming of any ERC
controller connected directly to the PC.
"KoolProg Software" installation kit is provided
for the PC. The gateway is standard inventory
for OEM labs.

Programming an individual unit in a
laboratory

The USB key requires "KoolProg Software"
running on a PC. It enables parameters to be set
in real time and an array of status information to
be read (bidirectional connection).
Once the desired settings have been
determined, a specific parameter file is saved to
the USB key for later mass programming through
the docking station.

Docking station

Mass programming on an assembly line:

The docking station is used for high volume
programming of ERC controllers, for example on
an assembly line. The docking station is a
write-only device.
The USB key, is to be inserted into the docking
station. The settings are then loaded into each
successive controller in a matter of seconds.
"KoolProg Software" is not required for mass
programming.

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User Guide | ERC 112 Refrigeration Controller

Technical specs

Power Supp ly 100 - 240 V AC Switch mode power supply. Average 0.7 W

Purpose of control To control commercial Refrigeration Applications

Construction of Control Electronic control for incorporation for use in Class I and Class II appliance

Automatic Action Micro- disconnection on operation type 1.B

5 inputs: 4 analogue (digital), 1 digital; user specific assignment; Optional: External button input

Input

Output

Probes

Connectors

Programming Programming with Danfoss KoolProg PC soft ware, Docking station and Programming key

Assembly Front mounting; Brackets

Display LED display, 3 digit, decimal point and multi functionality icons; °C/ °F scale

Keypad 4 buttons (integrated IP65 design), 2 left, 2 right; user programmable

Operating Conditions 0 °C to 55 °C, 93% rH

Storage Conditions -40 °C to 85 °C, 93% rH

Range of Measurement -40 °C to 85 °C with standard sensors (-40 °C to 200 °C when using NTC 100K sensors)

Protection

Environmental Pollution degree II, non-condensing

Resistance to heat & fire Categor y D (UL94-V0)

EMC category Category I

Over Voltage Category Categor y II (IEC 60664-1)

Temperature for Ball Pres­sure Tes t

For SELV Circuits Input Probes or Digital Input connected to SELV limited energy >15W

Operating Cycles Compressor relay: more than 175,000 at full load (16A (16A))

Approvals

• Cabinet air/Evaporator/Condenser • Door sensor: all types, user specific

• Light sensor: Danfoss ECO light sensor • Motion sensor

UL60730 EN60730

"DO1" (Compressor relay)

"DO4" 8 A resistive, FL A2/LRA12, TV-1 8 A resistive, 2(2) A

"DO5" F LA2/L RA12 , TV-1 8 A resistive, 2(2) A

"DO6" FLA 2/ LRA12, TV -1 8 A resistive, 2(2) A

Danfoss NTC sensors and Danfoss ECO accessories (Light, Motion and Door sensors)
Danfoss Pt 100 0 ohm/0°C

Modular connector system for OEM customers, with optional output screw terminal adapter;
Input connector type: Rast2 5 Edge connectors; output connector t ype: RAST 5 standard

Front: IP65
Rear: wate r and dust protectio n corresponds to IP31, accessibilit y of connectors limit rear part rating to IP0 0

According to EN 60730-1, Annex G

R290/R600a end-use applications employing in accordance to
EN/IEC 60335-2-24, annex CC and EN/IEC 60335-2-89, annex BB
Glow wire according to EN/IEC 60335-1
IEC/EN 60730
UL60730
NSF
CQC
EAC
Ukraine

120 V AC: 16 A resistive/FLA16/LRA72
240 V AC: 10 A resistive/FLA10/LRA60

These approvals are only valid when used with recommended Danfoss
accessories.

16(16) A

Max 10 A total "DO4-6"

IMPORTANT NOTE

The inputs are not galvanic isolated and are connected directly to the mains supply!
For that reason, door-switches, sensors as well as the cables must fulfil the reinforced insulation requirements.

Dimensions

28 mm

78,25 mm

71 mm

28,5 mm

Front mounting

(Lock with frame)

36,5 mm

78,25 mm

82,25 mm

71 mm

30 mm

Rear mounting

(Lock with clips)

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User Guide | ERC 112 Refrigeration Controller

80G31

Connections

(Inputs and outputs are
configurable)

Danfoss

Note
S4 Port can also be used to connect
other sensors and Door sensor.

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User Guide | ERC 112 Refrigeration Controller

Code numbers

Type

ERC 112C GDM - Red 27 080G3202

ERC 112D GDM - Red 27 080G3203

ERC 112C GDM - Blue 27 080G3206

ERC 112D GDM - Blue 27 080G3207

ERC 112C GDM - Red, STM32 27 080G3489

ERC 112D GDM - Red, STM32 27 080G3490

ERC 112C GDM - Blue, STM32 27 080G3491

ERC 112D GDM - Blue, STM32 27 080G3492

ERC 112C CFF - Red, Buzzer 27 080G3212

ERC 112D CFF - Red, Buzzer 27 080G3213

ERC 112C CFF - Blue, Buzzer 27 080G3216

ERC 112D CFF - Blue, Buzzer 27 080G3217

ERC 112C CFF - Red, Buzzer, STM32 27 080G3493

ERC112D CFF- Red, Buzzer, STM32 27 080G3498

ERC 112C CFF- Blue, Buzzer, STM32 27 080G3494

ERC112D CFF- Blue, Buzzer, STM32 27 080G3499

ERC 112C CFF- Blue, Buzzer 27 080G3233

ERC 112D CFF- Blue, Buzzer, 27 080G3413

ERC 112C CFF- Blue, Buzzer, STM32 27 080G3496

Temperature sensors

-40 – 85 °C, PVC Standard, NTC 5 K

S1, 470 mm, 3-pole

S1, 1000 mm, 3-pole

S1, 1500 mm, 3-pole

S1, 2000 mm, 3-pole

S1, 2200 mm, 3-pole

S1, 3000 mm, 3-pole

S1, 3500 mm, 3-pole

S1, 6000 mm, 3-pole

-40 – 120 °C, TPE precision NTC 5 K, Santroprene

S1, 1500 mm, 3-pole

-20 – 175 °C, Silicone rubber cable, NTC 100 K

S1/S3, 2000 mm, 3-pole 108 080G2043

I-Pack

Qty. Code no.

120

077F8751

120

077F8757

120

077F8761

120

077F8765

120

077F8767

60

077F8769

60

077F8723

27

080G2019

120

077F8726

Type

-40 – 85 °C, PVC Standard, NTC 5 K

S2, 1000 mm, 2-pole

S2, 1500 mm, 2-pole

S2, 2000 mm, 2-pole

S2, 3000 mm, 2-pole

S2, 6000 mm, 2-pole

S3, 1000 mm, 3-pole 120 077F8756

S3, 1500 mm, 3-pole 120 077F8760

S3, 2200 mm, 3-pole 120 077F8766

S3, 3000 mm, 3-pole 60 077F8768

-100 – 200 °C, Pt 1000

S4, 1000 mm, 3-pole 108 080G3350

Light-sensors

S3, 3000 mm, 3-pole 108 080G3315

Magnetic door sensor

di/S4, 2000 mm, 3-pole 81 080G3322

di/S4, 3000 mm, 3-pole 81 080G3324

Cable door sensor

di/S4, 1000 mm, 3-pole 108 080G3340

di/S4, 2000 mm, 3-pole 108 080G3341

di/S4, 3000 mm, 3-pole 108 080G3342

di/S4, 4000 mm, 3-pole 81 080G3343

Motion sensor

S3/di, 3000 mm, 3-pole 27 080G3392

Clips

Black (2 needed per controller) 54 080G3308

Programming

Docking station for OEM mass
production

EKA 183a programming key 1 080G9740

Gateway incl USB Cable for R&D 1 080G9711

Power plug *

6-pole with screw 54 080G3357

* The connectors are rated for 28 Amps max.

I-Pack

Qty. Code no.

120

077F8786

120

077F8790

120

077F8794

60

077F8798

27

080G2029

1 080G9701

Note: For more information about temperature sensor

types and connectors, please refer to Danfoss’ technical
brochure "NTC type temperature sensors for ETC & ERC

controllers".

Sx (di)= connector position.
Inputs are configurable.

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User Guide | ERC 112 Refrigeration Controller

Operation

Programming Tools

Manual operation with
buttons (Direct Access)

Examples

The controller can be configured in four ways:
Using:

• KoolProg and KoolKey as Gateway

• KoolKey as Copy key

• KoolKey with Docking station

• Buttons on the front panel of the controller.

1 Press: variable direct
function, e.g. “ECO”/”Night mode”

Sub function: back

1 Press: variable direct

function, e.g. light
Sub function: “OK”

Changing the Desired Temperature Set point:

1. The display shows the current temperature.

2. Press "up/down" to access set point.

3. Press "up/down" to adjust set point.
After 30 seconds, the display automatically
reverts to showing the current temperature

Turning ON/OFF the ECO Function:

1. Press "ECO".
The green "ECO" symbol is lit when in "ECO"
mode.

Turn ON/Off the Light:

1. Press the "Light" button.

Acknowledging Alarms:

1. Display Flashing the alarm message.

2. Press any button to acknowledge.

Password protection:

1. Press "^" and "v" together and hold 5 seconds

to access the menu.

2. The display shows "PAS" (only if configured for

password protection).

3. Press "OK".

4. Press "^" / "v" to the code.

5. Press "OK".
Password protection on three levels:

1. Level 1: "shop" (daily use by shop personnel).

2. Level 2: "ser" (service technician).

3. Level 3: "OEM" (OEM programming).

All these tools are supplied separately.
For technical literature and further information,
please contact your local Danfoss representative.

1 Press: temperature set point

Sub function: “up”

1 Press: temperature set point

Sub function: “down”

Changing a Parameter

Some parameters may be hidden to you.
Your access level will determine which
parameters you can view and edit:

1. Press "^" and "v" together and hold 5 seconds
to access the menu.

2. First parameter group is shown "tHE".

3. Press "^" and "v" to find the desired group.

4. Press "OK".

5. First parameter is shown.

6. Press "^" and "v" to find the desired
parameter.

7. Press "OK".

8. Press "^" and "v" to find the desired setting.

9. Press "OK".

After 30 seconds, the display automatically
reverts to showing the current temperature.
Or Press 2 x "Back".

NOTE:
Incorrect parameter settings can lead
to inadequate cooling, excessive energy
consumption, unnecessary alarms and in the
case of temperature-sensitive food storage,
breaches in food hygiene principles and
regulations.
Only a trained operator should make changes to
parameters.

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