The Heatit Z‑TRM6 is a smart thermostat designed to control electric heating systems and water-based heating systems. The thermostat can be controlled via the Z‑Wave network or with the buttons on the front panel of the thermostat. It has a user-friendly interface, complies with the Eco-Design directive and is equipped with an easy-to-read LED display. It supports three operating modes: Heat, Cool and Eco.

The thermostat is compatible with standard European junction boxes and can be used with most System 55 frames. Its solid metal housing ensures a stable installation. It contains a built-in room temperature sensor, and two external temperature sensors can also be connected to it. The Heatit Z‑TRM6 provides active power measurement, so it displays real-time information on current energy consumption. The device is equipped with ZeroX™ technology, which ensures that the relay switches on and off at 0V. This technology significantly increases the life of the thermostat.

The thermostat supports multiple association settings and can also be used as a master thermostat. It can control up to 10 other thermostats and 10 external relays (for example, wall sockets). The thermostat can handle up to 16A/3600W power at 230VAC voltage in the case of a resistive load. For loads greater than 13A, the use of a contactor is recommended. The thermostat is primarily designed for resistive loads. In the case of larger resistive, capacitive or inductive loads, a contactor is required.

Main product features

- Z‑Wave can be controlled via Z‑Wave network with OTA firmware update.
- Internal room temperature sensor, the thermostat measures the room temperature by itself.
- External temperature sensors two additional NTC sensors can be connected, e.g. to measure the temperature of a floor or other room.
- Floor sensor with compatible floor sensor, optimizing the control of floor heating.
- Power controller with adjustable period (0-30 minutes), hysteresis and PWM control.
- Temperature optimization to determine the upper limit of the achievable temperature.
- After installation of temperature calibration, the accuracy of the measured temperature can be corrected.
- 3 operating modes: Heat Cool Eco various heating and energy saving settings.
- ZeroX™ detection switches the relay on and off at 0V, which guarantees a longer service life.
- Window opening detection stops the heating in the event of a sudden drop in temperature.
- Relay status icon visual feedback whether it is on or off.
- Adjustable display brightness, the display of the LED display can be adjusted.
- Single pole switch standard switching configuration.
- Child lock protection against accidental intervention.
- Temperature reading in the gateway can also be seen in the central unit.
- Programming option that can be set in the weekly schedule gateway.
- Active power measurement shows the current consumption in real time.
- SmartStart automatic Z-Wave network integration.
- Firmware update (OTA) wireless software update option.
- Encryption modes S0, S2 Authenticated and S2 Unauthenticated support.

Smart home protocols and platform compatibility

- Smart home protocol: Z‑Wave (868.4MHz, Z‑Wave 800);
- Factory compatibility: Z‑Wave based smart home systems (e.g. Homey, SmartThings, Home Assistant, etc.), gateways connected to a network.
- Cloud-based integrations: no direct API or cloud integration, unless the hub allows it.
- Third Party Integration: Can be used via Z‑Wave via IFTTT or other automation platforms.
- Voice control: can be implemented via the corresponding Z‑Wave hub.

Smart functions

- Status can be queried remotely (on/off, current temperature).
- Remote control via Z‑Wave gateway (switching on/off, switching modes and target temperature).
- History/logs are available through the gateway (e.g. weekly schedule), detailed logging depends on the Z‑Wave center.
- Active real-time consumption measurement (Watt).
- Timing/weekly schedule can be created in the gateway.
- Window opening detection automatically stops the heating when the window is open.
- Child lock function against accidental settings.
- Master mode: you can control up to 10 other thermostats or relays.
- OTA firmware update for modernization.
- SmartStart for network automated connection.

Electrical functions

- Supply voltage: 230VAC, 50Hz; own consumption