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Bticino Axolute Chronothermostat HC4451

BTI HC4451 8012199800844

The chronothermostat connected to the boiler or air conditioner is used to program the switching on and off and also the desired temperature. Daily/weekly built-in chronothermostat for heating and air conditioning.

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  • Buy it with Express shipping within
    and receive it from Tuesday, 3 August
  • Buy it with Express shipping within
    and receive it from Thursday, 5 August
  • Buy it with Express shipping within
    and receive it from Tuesday, 3 August
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Three selectable temperatures in 24 hours - Auto - Manual - Holiday - Antifreeze operation. Backlit display - battery power supply: 2x 1.5 V - remote control - possibility of connecting an external probe - output: changeover contact 5(3) A - color gray tech.


Axolute Series

Chronothermostat Art. HC4451 model for clear keys HC

Attention: the plate shown in the photo is not included in the price!

Traditional temperature control in the apartment
The new built-in chronothermostat is characterised by maximum simplicity of use, thanks to the backlit display and just 6 keys that allow you to perform all the functions required during daily use. Through a menu, programming is also simplified and particularly intuitive. The chronothermostat is powered by batteries so that it can be easily removed and programmed.

The chronothermostat can be activated remotely and particularly useful for this purpose is the new GSM telephone actuator art. F462 that, through a simple SMS, allows you to turn on and turn off your heating system. The chronothermostat is also connectable to the external probe art. 3457 to perform three different functions:

  • display the outdoor temperature directly on the chronothermostat;
  • measure the room temperature at a better point than the one where the chronothermostat is installed;
  • set a threshold limit for floor systems.


  • Operating temperature: 5°C ÷ 35°C
  • Power supply: 2 x LR6/AA type 1,5V alkaline batteries
  • Minimum time between one intervention and the other 15 minutes
  • Settable temperature values: 3°C ÷ 40°C
  • Recessed installation - 3 modules
  • Output contacts capacity, voltage free: 5(3)A
  • Possibility of connecting the external probe art. 3457
  • Possibility of remote activation through telephone switchboard, telephone actuator, burglar alarm system, etc..
  • Series: Axolute
  • Module: clear for plate HB or HA

Data sheet

Programmable thermostats
With the display
Main Commands

Specific References

Compatible products