1. Welcome
Thank you for your trust and support! The Intelligent Radiator Thermostat (TRV-M2Z) is battery-powered, wiring-free, and easy to install for controlling the temperature of water-heated radiators. It reduces energy wastage and saves on heating costs while providing a comfortable temperature.
Once added to the Tuya Smart APP, users can select modes, set temperature, and activate child lock and frost protection functions. Any manual adjustments made to the device will be reflected in the Tuya Smart APP.
Main Functions and Characteristics
- Multiple Working Modes: Features 8 kinds of working modes including programming mode, manual mode, temporary programming mode, holiday mode, comfort mode, energy-saving mode, and more.
- Clear Display: Built-in large LED display screen for easy viewing of settings and current status.
- Low Power Consumption: Battery endurance lasts for one heating season, ensuring worry-free operation.
- Reliable Communication: Utilizes the Tuya Zigbee wireless communication protocol for safe, reliable, and convenient operation.
- Safety Features: Includes frost protection and child lock functions.
- Smart Detection: Features a window-opening detection function to save energy.
2. Specifications
| Feature | Specification |
|---|---|
| Power Supply | 3 x 1.5 V alkaline AA battery (not included) |
| Standby Current | 6μA Min |
| Protection Degree | IP20 |
| Ambient Temperature | 0~50°C |
| Surface Temperature | 90°C Max (at the radiator) |
| Connection | M30 x 1.5mm |
| Linear Travel | 6mm |
| Dimensions (W x H x D) | 54mm x 89mm x 54mm |
| Weight | 139g |
3. Setup
3.1. Installation Instruction (Adapters)
The TRV-M2Z is designed to be compatible with various radiator valves using appropriate adapters. Common adapters include those for Danfoss, Caleffi, Giacomini, and M28 valves. Ensure you use the correct adapter for your specific valve type for proper installation.
3.2. Battery Installation
- Remove the Knob: Pull the knob of the TRV in the direction of the arrow indicated on the device.
- Pull Out Shell: Gently pull out the main shell of the TRV in the direction of the arrow.
- Load Batteries: Refer to the polar direction indicated inside the battery tank and load 3 AA alkaline batteries.
- Reinstall Shell and Knob: Install the shell and knob back onto the device at the marked position to complete the installation.
3.3. Mounting on Valve
Before mounting the temperature controller on the valve, ensure batteries are loaded. You will feel a slight vibration as the controller enters automatic detection mode.
- Align the interface nut of the temperature controller with the heat radiator valve.
- Slightly push forward and clockwise rotate the interface nut until it is tightened. The maximum tightening moment is 5N·m.
- After approximately 10 seconds, the current temperature will be displayed, indicating successful mounting.
To minimize the influence of the radiator's own heat on the temperature controller, it is suggested to mount it in a position that allows for accurate room temperature sensing.
3.4. Automatic Detection
After mounting, the system automatically adjusts according to the set program. The temperature controller may perform voluntary and repeated heating/cooling cycles as part of its automatic detection process. During specific running periods, the controller will switch off the radiator valve, then open it again to detect the exact opening position of the valve. This function ensures efficient heat utilization and accurate temperature control.
If necessary, remove the batteries, wait for 30 seconds, then reload them to activate mounting mode. This will force the controller to run the automatic detection function, and the display will show