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HEATIT CONTROLS - Z-TRM3 Z-Wave+ electronic thermostat, black


Heatit Controls


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Heatit Z-TRM3 is an electronic thermostat for electrical floor heating, designed to be mounted in a standard flush box. Black version.

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Heatit Z-TRM3 is an electronic thermostat for electrical floor heating, designed to be mounted in a standard flush box. The thermostat has a built-in Z-Wave chip that can be connected with Home Automation systems. Heatit Z-TRM3 has SmartStart. This feature allows the user to include all devices with SmartStart by scanning the QR codes on the devices. On startup all the devices will automatically be included in the gateway (requires SmartStart compability). This saves the installer a lot of work.

Heatit Z-TRM3 is equipped with a single pole switch and fits into System 55 frames. The thermostat can withstand a load of max 16A /3600W at 230V. At higher loads the thermostat must control a contactor. The thermostat may be connected to two wired external sensors. The thermostat has the capacity of up to 8 associations (relays, wall plugs etc.).

Thanks to the black plastic kit, you may combine frames and fronts as you please. Choose a black frame with a white front (or the other way around) for an edgy look, or go for the traditional all-white or all-black.

The thermostat is designed for electrical heating. It may be used for waterbased heating if the thermostat is linked with the Heatit Z-Water.


  • Floor sensor
  • Internal room sensor
  • External room sensor (connected by cable)
  • Temperature limiter
  • SmartStart
  • Weekly program/setback via gateway
  • Temperature read out in gateway
  • Firmware update (OTA)
  • Power metering
  • Relay status LED
  • Single pole switch
  • Lock mode/child lock
  • Calibration
  • 5 associations
  • Supports encryption mode: S0, S2 Authenticated Class, S2 Unauthenticated Class


  • Protocol Z-Wave – 868,4MHz
  • Chip Z-Wave 500 chip
  • Rated voltage 230V 50/60Hz
  • Max load 3600W (resistive load) 750W self-limiting heating cable
  • Max current 16A
  • Power consumption <2,0W
  • Ambient temperature 0°C to 40°C (during operation)
  • Temperature range 5°C to 40°C
  • Hysteresis 0,3°C to 3,0°C (default 0,5°C)
  • Compatible with NTC sensors with values 10, 12, 15, 22, 33 and 47 kΩ @ 25°C
  • IP Code IP 21
  • Approvals Z-Wave Plus, CE, EN 60730-1, EN 60730-2-9, EMC 2014/30/EU, RoHS 2011/65/EU, LVD 2014/35/EU