Heatit Z-TRM3 Thermostat 3600W 16A

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

You may combine frames and fronts as you please:

- choose a black frame with a white front (or the other way)


- go fo the all - white or all - black editions;

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Important notes

- The power supply must be provided from a 230 V AC source;

- A Z-Wave Hub is required!

- This product CAN be used in EU countries;

- Compatible with electric in-floor heating systems or water-based in-floor heating systems (Heatit Z-Water module needed);

- Thermostat wires MUST be available in order for it to be installed;

- Use 1.5 mm² or 2.5 mm² wires according to load.

Way it works

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 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. The thermostat may be used for water-based heating if the thermostat is linked to the Heatit Z-Water.

heatit thermostat Z-TRM3.png

Notes for the diagram:

L - terminal for Live wire (100 - 240 VAC);

N - terminal for Neutral wire;

Heating L - heating cable connection;

Heating N - heating cable connection;

Floor sensor - NTC type (10, 12, 15, 22, 33 or 47 kΩ);

External sensor - NTC type (10, 12, 15, 22, 33 or 47 kΩ).

Where it works

It can be mounted in a standard flush box and used to control:

- electric in-floor heating systems;

- water-based in-floor heating systems (thermostat must be linked to the Heatit Z-Water).


Floor sensor or external room sensor (cable connected)

Internal room sensor 

Temperature limiter

Smart Start

Power metering

Relay status LED

Lock mode/child lock


Tech Specs

Power supply


230 V AC, 50/60 Hz

Max Load

3600 W (resistive load)

750 W (self-limiting heating cable)

Max current

16 A


In-floor heating systems

Ambient temperature

0 - 40 °C

Temperature range

5 - 40 °C

Compatible with NTC sensors

10, 12, 15, 22, 33 or 47 kΩ


Data sheet

Z-Wave Plus

Specific References

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