1. Introduction
The EZAIOT ZigBee TRV (Thermostatic Radiator Valve) is a smart, programmable device designed to provide precise temperature control for your home's heating system. Compatible with both central and district heating radiators, this valve allows for individual room temperature management, enhancing comfort and energy efficiency. It integrates seamlessly with smart home ecosystems via ZigBee, offering remote control and voice command capabilities.

2. Key Features
- Two System Modes: Choose between Energy-Saving Mode (stops heating at set temperature) and Comfort Mode (PID algorithm for optimal temperature).
- High-Performance Motor: Features a new generation motor with a fast 5-second debugging time and up to 97% maximum speed increase for quick response.
- PID Algorithm: Utilizes an intelligent PID algorithm for precise temperature control, potentially saving up to 18% on annual heating costs.
- Extended Battery Life: Powered by 3x 1.5V AA alkaline batteries, designed for a super long battery life of up to 730 days thanks to a low-power chip.
- Broad Compatibility: Includes 6 different types of valve adapters, ensuring compatibility with approximately 97% of radiator valve interfaces on the market (M30 x 1.5mm connection).
- Adjustable Screen Orientation: The screen display can be adjusted in 4 directions to suit various installation positions.
- Smart Control: Supports remote control via Smart Life and Tuya Smart Apps, and voice control through Yandex Alice, Google Assistant, and Amazon Alexa (requires a Tuya ZigBee wireless gateway).
- Weekly Programming: Allows for personalized heating schedules with settings for 7 days and 4 time periods per day.
- Anti-Scale Function: Helps prevent scale buildup within the valve.
- Window Opening Detection: Automatically stops heating when an open window is detected, saving energy.
- Screen Dimming: Offers 3 levels of screen brightness adjustment via the app.
- Child Lock: Prevents unauthorized manual adjustments to the thermostat settings.

3. Technical Specifications
| Attribute | Specification |
|---|---|
| Model Number | TRV601&TRV602 |
| Power Supply | 3x 1.5V AA Alkaline Batteries (not included) |
| Standby Current | 6 μA Min |
| Protection Degree | IP20 |
| Ambient Temperature | 0~50℃ |
| Temp. Setting Range | 5~35℃ |
| Storage Temperature | -10~60℃ |
| Surface Limited Temp. | Max 90℃ (at the radiator) |
| Communication Protocol | Zigbee 3.0 |
| Connection | M30 x 1.5mm |
| Linear Travel | 4.3 mm |
| Material | Bottom shell: PA+30%GF, Top cover: PC |
| Dimensions (W x H x D) | 58.4mm x 97mm x 58.4mm |

4. Package Contents
The standard package includes:
- 1x TRV Smart Radiator Thermostat
- 6x Valve Adapters
- 1x Instruction Manual
- 1x Screw Pack

5. Setup and Installation
5.1. Battery Installation
The TRV requires 3x 1.5V AA alkaline batteries (not included). To install, locate the battery compartment lock, open it, insert the batteries according to polarity, and close the compartment.
5.2. Physical Installation on Radiator
The TRV is designed for easy installation on most radiator valves. It comes with 6 different adapters to ensure compatibility with 97% of valve ports on the market, including Danfoss RA, RAV, RAV L, Caleffi, Giacomini, and M28 valves. The standard connection is M30 x 1.5mm.
- Identify your radiator valve type.
- Select the appropriate adapter from the provided set.
- Attach the adapter to your radiator valve.
- Mount the TRV onto the adapter, ensuring a secure fit.
The TRV supports various installation orientations: vertical, horizontal, and upside down. The screen orientation can be adjusted to match your installation.


5.3. App and Gateway Connection
To enable smart features, the TRV must be connected to a Tuya ZigBee wireless gateway (e.g., the 'Wireless Gateway' SKU). The gateway then connects to your Wi-Fi router and the cloud server, allowing remote control via the Smart Life or Tuya Smart App.
- Ensure your ZigBee Gateway is powered on and connected to your Wi-Fi network.
- Download and install the Smart Life or Tuya Smart App on your smartphone or tablet.
- Open the app and follow the on-screen instructions to add the ZigBee Gateway.
- Once the gateway is added, follow the app's instructions to add the TRV device.

6. Operating Instructions
6.1. Manual Control
You can manually adjust the temperature directly on the TRV unit using the knob or buttons. The OLED/LED screen will display the current and set temperatures.
6.2. App Control (Smart Life / Tuya Smart)
Once connected to the app via the ZigBee gateway, you can:
- Set Temperature: Adjust the desired temperature remotely.
- Switch Modes: Toggle between Energy-Saving Mode and Comfort Mode.
- Weekly Programming: Create custom heating schedules for 7 days a week, with up to 4 time periods per day.
- Screen Dimming: Adjust the screen brightness (3 levels available).
- Child Lock: Activate or deactivate the child lock feature.
- View Data: Monitor temperature trends and valve opening percentage.
6.3. Voice Control
Integrate your TRV with voice assistants like Amazon Alexa, Google Home, or Yandex Alice for convenient hands-free control. Ensure your voice assistant is linked to your Smart Life/Tuya Smart account.

6.4. Special Functions
- Window Opening Detection: The TRV can detect open windows and temporarily stop heating to conserve energy.
- Anti-Scale Function: This feature helps prevent mineral buildup inside the valve, ensuring smooth operation.
7. Maintenance
- Battery Replacement: When the low battery alarm is triggered, replace the 3x 1.5V AA alkaline batteries promptly to ensure continuous operation.
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Software Updates: The device supports software upgrades. Regularly check the Smart Life/Tuya Smart App for available updates to ensure you have the latest features and improvements.
8. Troubleshooting & FAQ
- Q: Does it only support Smart Life APP remote control?
- A: It supports both Smart Life and Tuya Smart APP.
- Q: Will the valve make a lot of noise when heating?
- A: No, all motors have been upgraded, resulting in very low operational noise that is barely noticeable.
- Q: Can the screen brightness be adjusted?
- A: Yes, there are 3 levels of screen brightness adjustable via the APP.
- Q: I don't know how the adapter connects to the valve.
- A: Please refer to the installation section of this manual. For detailed visual guidance, you can search for "EZAIOT" on YouTube or check the playlist: EZAIOT Installation Video Playlist.
- Q: Can the device be locked?
- A: Yes, the child lock feature prevents manual rotation of the TRV, but it can still be operated through the mobile APP. This is useful for preventing accidental changes while allowing adults full control.
- Q: Are batteries included?
- A: No, batteries are not included due to shipping restrictions.
9. User Tips
- For optimal energy savings, utilize the weekly programming feature to match your heating schedule with your daily routine.
- Take advantage of the window opening detection feature to avoid wasting heat when ventilating your home.
- If you have multiple TRVs, consider grouping them in the app for easier management and synchronized control.
- Regularly check the app for low battery alerts to ensure uninterrupted heating control.
- If you encounter any issues with adapter installation, refer to the official EZAIOT YouTube channel for visual guides.
10. Warranty and Support
All EZAIOT products come with a 2-year online warranty. For any questions, dissatisfaction, or support needs, please contact the seller or EZAIOT customer service. They are committed to resolving issues within 24 hours.
The product holds CE, RoHS, and WEEE certifications, ensuring compliance with relevant safety and environmental standards.