Danfoss Electronic Superheat Controller, Type EKE 1C Installation Guide

Summary

The EKE 1B is a precision electronic superheat controller engineered for advanced temperature regulation in commercial HVAC, heat pump, and refrigeration systems. This device ensures accurate superheat control across various industrial and food retailing applications. The manual provides comprehensive technical guidance, covering detailed specifications on electrical connections, I/O types, communication protocols (RS485, CAN), and optimized installation practices. It is the essential resource for qualified HVAC technicians and engineers managing complex climate control and superheat requirements with compatible systems like Danfoss ETS and KVS valves.

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ENGINEERING

Installation guide

Electronic superheat controller

Type EKE 1B English

Introduction Superheat controller EKE 1B is for use where superheat must be accurately controlled, typically in commercial air conditioning, heat pumps, commercial refrigeration, food retailing and industrial applications. Compatible valves: Danfoss ETS 6 / ETS / ETS Colibri®, KVS / KVS Colibri® and CCM / CCMT / CTR valves. Reference: For details please see EKE data sheet. More info

Applications

Communication

1. Superheat controller: standalone / network

Danfoss R64-3033.10

ETS Colibri®

S2 Pe Pe

an fo ss R6 4- .1

2. Valve driver Reference signal

ETS Colibri®

S2 Pe

CAN RJ

Dimensions in mm EKE 1B

Danfoss Weight: 152 gram 80G8215.11

Page Summary Contents For Danfoss Electronic Superheat Controller, Type EKE 1C Installation Guide

Page 1 ENGINEERING Installation guide Electronic superheat controller Type EKE 1B English Introduction Superheat controller EKE 1B is for use where superheat must be accurately controlled, typically in comme...

Page 2 TECHNICAL SPECIFICATIONS POWER SUPPLY EKE has galvanic isolation by switch-mode power supply. 24 V AC ± 20 %, 50/60 Hz. Maximum power consumption: 18 VA. Input voltage rating (DC): 24 V DC ± 20%, 15 W...

Page 3 GENERAL FEATURES AND WARNINGS PLASTIC HOUSING FEATURES DIN rail mounting complying with EN 50022 Self-extinguishing V0 according to IEC 60695-11-10 and glowing/hot wire test at 960 °C according to IEC...

Page 4 DIN rail mounting / demounting The unit can be mounted onto a 35 mm DIN rail simply by snapping it into place and securing it with a stopper to prevent sliding. It is de- mounted by gently pulling the...

Page 5 Connection overview, EKE 1B Master controller MMIGRS2 Display RS485 MODBus CAN RJ 080G0072 (optional) Supervisor EKE MMIMYK network –/ an fo ss Gateway AKS Cable connection RS RT Bu RG ND RG ND CO Ba ...

Page 6 Sensor mounting: Temperature sensor –/ ~–/ 1/2 - 5/8 in. OD 12 - 16 mm an fo ss 5. an fo ss 6. 3/4 - 7/8 in. RG ND 18 - 22 mm CO 5V Ba t+ I2 I1 CO Conductive I4 B1 I3 1 - 13/8 in. B2 I2 OD paste Evapo...

Page 7 Relay Outputs EKE 1B has 1 relay output: • Type SPDT relay. Digital Output can be used to connect either a solenoid valve or an alarm. • The relays cannot be used for the direct connection of capaciti...

Page 8 Stepper Motor Output • All valves are driven in a bipolar mode with a 24 V supply chopped to control the current (Current driver). • The stepper motor is connected to the “Stepper Valve” terminals (se...

Page 9 LED indication (A) Two status LEDs to indicate operational status • Steady green = power ON • Flashing green = data transmission / initialization • Flashing red = alarm / error condition an fo ss 6B ....

Page 10 Danfoss MMIGRS2 display ACCCBI080G0075 CAN RJ Connecting external MMIGRS2 display CAN RJ MMIGRS2 display can be used to set up EKE 1B. The display can be used not only for setting up the necessary par...

Page 11 Setup wizard Guided configuration for first-time Power on controller setup. Wizard setup is available in both MMIGRS2 exter- nal display and Kool Prog software. Setup Wizard has not been done earlier ...

Page 12 Quick guide for parameter selection Apart from wizard setup, users can also use the following section which describes quick parameter settings for general applications. Driver Controller Start : Main ...

Page 13 EKE 1B – Commonly used parameter identification PNU - equivalent to the Modbus register no. (Modbus address +1). Actual value are read/written as 16-bit integer values without decimals. This is the de...

Page 15 Related products MMIGRS2 Display Power Supply MMIMYK Gateway User interface module MMIGRS2 Display AK-PS MMIMYK device is used as a gateway Input: 100 – 240 V AC, 45 – 65 Hz to connect EKEs and the PC...

Manual Details

Brand	Danfoss
Pages	15
File Size	3.03 MB
Published	June 05, 2026

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Frequently Asked Questions

What types of valves are compatible with the EKE 1B controller?

It is compatible with Danfoss ETS 6 / ETS / Colibri®, KVS / Colibri® and CCM / CCMT / CTR valves.

What is the recommended primary power supply for the unit?

The main power supply required is 24 V AC ± 20 %, operating at 50/60 Hz.

Who is qualified to perform service or maintenance on this device?

All service and maintenance operations must be performed by qualified personnel due to live electrical components.

Which communication standards does the EKE 1B support?

The unit supports RS-485 and CAN communication protocols, offering galvanic isolation for each.