Clock Thermostat OCC4

Clock Thermostat OCC4

6-event clock thermostat - Set & forget!

An “all-in-one” clock thermostat for electric underfloor heating control where optimum comfort temperature and minimum energy consumption are required. Adaptive control ensures a comfortable temperature when you want it.

  • Thinnest clock thermostat on the market, only 20 mm.
  • Easy animated menu navigation and programming in 8 languages.
  • Compatible with existing floor sensors, an excellent choice for renovations
  • 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.

  • What is the maximum length of the sensor cable?


    In general, we recommend a maximum cable length of 50 meters, the length might be shorter. Read the instructions for the precise maximum length.

  • What does error code "E2" mean?


    Error code "E2" means defective, damaged or not connected floor sensor. Check connections or replace sensor if necessary.

  • 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.



  • Whom to contact to get info about the total load?


    When turning on the unit for the first time and choosing Floor thermostat - it asks me for a load.


    Ask installer for total load.

Green Comfort

Intelligent Control
Green Comfort

Intelligent control results in maximum comfort with low energy consumption.


Floor Heating Electric
FHEL Products

Our room thermostats for electric underfloor heating are recognised for their ideal combination of form and function. View our FHEL product range here.


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