ECD4 All-in-One DIN Rail Thermostat with Schedule

An “all-in-one” thermostat with extended temperature control range, suitable for a wide range of applications. Easy to operate and program.

Product regions: Europe, Asia & South America

  • Display
  • ECOdesign
  • Programmable

Request Product Documents FAQ

ECD4 DIN Rail Thermostat from OJ Electronics A/S

ECD4All-in-One Thermostat – For DIN Rail Mounting

Extensive program of temperature control modes
Supports room temperature control, room temperature control with floor temperature limitation, floor temperature control and regulator mode.

Large Differential Temperature Range
The thermostat has a large differential temperature range of 6°C, for either lowering the cycle time of the relay or specifically to reduce the number of start cycles.

Versatility regarding temperature sensing
The thin floor temperature sensor provided with the thermostat is the obvious choice for new installation. There is however no restriction in using an already installed OJ-sensor. This flexibility together with the optional use of a compatible 3rd party sensor makes the ECD4 an outstanding offer for upgrading existing systems to the newest standard.

Built-in clock with power backup
Comes with built-in 6-event program for automatic comfort and setback temperature. The clock and calendar have built-in battery backup, eliminating the need to set the clock after power interruptions.

  • The “all-in-one” thermostat is perfect for these application types:
    – Electrical floor heating*
    – Frost protection
    – Pipe protection
    – Ice & Snow melting
    – Cooling
  • Extended temperature control range -20° to +80°C.
  • Input for night setback and frost protection.
  • Includes cooling application.
    – invertible relay function and differential temperature.
  • Optimum safety due to built-in 2 pole 16 Amp interrupter.
  • Intuitive graphical interface for easy menu navigation and programming. Programming is easy, ensuring the fastest and easiest set-up.
  • Delivered with new thin floor temperature sensor, which makes mounting the sensor more comfortable than ever.

*Specific requirements of the European Ecodesign Directive (EF2009/125/EF) regarding local space heaters must be observed.

Product Documents

Product Sheets
Product Sheet, ECD4-1999, English
File type/size:PDF ( 259.99 KB )
Product Catalogue 2024 Europe-Asia-South-America, English
File type/size:PDF ( 2.54 MB )
User Manuals
User manual, ECD4-1991, CZ
File type/size:PDF ( 1.64 MB )
User manual, ECD4-1991, DE
File type/size:PDF ( 1.61 MB )
User manual, ECD4-1991, EN
File type/size:PDF ( 1.61 MB )
User manual, ECD4-1991, FI
File type/size:PDF ( 1.61 MB )
User manual, ECD4-1991, FR
File type/size:PDF ( 1.58 MB )
User manual, ECD4-1991, NL
File type/size:PDF ( 1.61 MB )
User manual, ECD4-1991, PL
File type/size:PDF ( 1.65 MB )
User manual, ECD4-1991, SE
File type/size:PDF ( 1.61 MB )
Instructions, ECD4-1991 (GB, FR, DE, PL, CZ, FI, NL, SE).pdf
File type/size:PDF ( 557.40 KB )
Sales Sheet, ECD4-1999, English
File type/size:PDF ( 1.52 MB )

Product FAQ

What is the maximum length of the sensor cable?

In general, it is recommended that the maximum sensor cable length should be 164 feet/50 meters, the length might be shorter. Read the instructions for the precise maximum length.

How can I cure the E2 error message?

“E2” means defective, damaged or disconnected floor sensor. Sensor resistance should be 10 or 12 kOhm at 25°C (77°F). The onstruction or quick guide holds informatiom for the specific thermostats.

Where to connect the ground wire of floor mats?

The ground wire in the floor mat must be connected directly to the ground wire of the supply.

What is the recommended night setback?

The recommended night setback is max 5°C/41°F

Does the adaptive function reset when making a factory reset?

Yes the adaptive function is reset during a factory reset.

ECD4 DIN Rail Thermostat from OJ Electronics A/S

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