HeatIt Z-TRM6 Thermostat Z-Wave 800 series (White RAL 9003)

Heatit Z-TRM6 Z-Wave Thermostat

The Heatit Z-TRM6 is a smart thermostat designed for controlling both electric and water-based heating systems. It can be operated via a Z-Wave network or using the buttons on the thermostat’s front panel. Featuring a user-friendly interface, it complies with the Eco-Design directive and includes a clear, easy-to-read LED display. It supports three modes: Heat, Cool, and Eco.

The thermostat is compatible with standard European wall boxes and can be used with most System 55 frames. Its solid metal housing ensures secure installation. It includes a built-in room temperature sensor and supports two additional external temperature sensors. The Heatit Z-TRM6 provides active power metering, giving real-time feedback on energy consumption. The device also features ZeroX™ technology, which ensures the relay switches at 0V, significantly extending the thermostat's lifespan.

The thermostat supports multiple association settings and can be used as a master thermostat. It can control up to 10 other thermostats and 10 external relays (e.g., wall sockets). It can handle up to 16 A/3600 W resistive load at 230 VAC. For loads exceeding 13 A, the use of a contactor is recommended. The device is primarily designed for resistive loads; for larger resistive, capacitive, or inductive loads, a contactor must be used.

Brand Introduction

Heatit is a brand of Heatit Controls AB, a Swedish company specializing in Z-Wave-based smart home products. Their product range – including thermostats, relays, dimmers, and gateways – is compatible with a wide range of Z-Wave networks. They are known for their youthful, modern designs, high-level IP security, and OTA (Over-The-Air) firmware updates.

Main Product Features

• Z-Wave – controllable via Z-Wave network, with OTA firmware updates
• Built-in room temperature sensor – measures room temperature independently
• External temperature sensors – supports two additional NTC sensors (e.g., floor or second room)
• Floor sensor – compatible with floor sensors, optimized for underfloor heating
• Power regulator – adjustable time window (0–30 min), hysteresis, and PWM control
• Temperature optimization – defines upper limit for heating temperature
• Temperature calibration – allows for correction after installation
• 3 modes: Heat – Cool – Eco for flexible heating and energy-saving setups
• ZeroX™ detection – relay switches at 0 V for longer durability
• Open window detection – stops heating when a sudden temperature drop is detected
• Relay status icon – visual feedback on the relay’s on/off state
• Adjustable display brightness – LED display brightness can be set
• Single-pole switching – standard switching configuration
• Child lock – prevents accidental changes
• Temperature reading in gateway – visible in the central smart hub
• Weekly scheduling – programmable via the gateway
• Active power metering – real-time energy consumption display
• SmartStart – automatic Z-Wave network integration
• Firmware updates (OTA) – supports wireless firmware upgrades
• Security modes – supports S0, S2 Authenticated, and S2 Unauthenticated

Smart Home Protocols and Platform Compatibility

• Smart home protocol: Z-Wave (868.4 MHz, Z-Wave 800)
• Native compatibility: Z-Wave-based smart home systems (e.g., Homey, SmartThings, Home Assistant), network-connected gateways
• Cloud integrations: no direct cloud API; available only if the hub allows it
• Third-party integration: supports IFTTT and other automation platforms via Z-Wave
• Voice control: available through compatible Z-Wave hub

Smart Features

• Remote status inquiry (on/off, current temperature)
• Remote control via Z-Wave gateway (power on/off, mode switching, target temperature)
• History/logs available through gateway (e.g., weekly schedule) – detailed logging depends on the hub
• Real-time active power measurement (Watts)
• Timer/weekly schedule creation available in the gateway
• Open window detection – heating stops automatically if window is open
• Child lock feature to prevent accidental settings changes
• Master mode – can control up to 10 other thermostats or relays
• OTA firmware updates for continuous improvements
• SmartStart for automatic network joining

Electrical Specifications

• Power supply: 230 VAC, 50 Hz; self-consumption < 2 W
• Max. load: 3600 W (16 A) resistive; use contactor above 13 A
• Output not independent of power supply: the relay runs on the main supply
• Number of circuits/outputs: one single-pole relay – controls one load
• Output nominal voltage/power/current: 230 VAC, max. 3600 W, max. 16 A
• Power measurement: real-time active power metering
• NO/NC support: only NO (normally open) relay, single-pole

Other Specifications

• Build category: mid-range, solid metal casing, modern design
• Size: 84 × 84 × 45 mm – fits standard EU wall boxes (System 55)
• IP rating: IP21, for indoor use only
• Operating temperature: 5–40 °C; humidity: 10–85 >#/li###
• Certifications: CE, RoHS, Z-Wave Plus v2, EN 60730, EMC Directive, LVD, etc.
• Also suitable for bathroom installations

Additional information