1. Inleiding
This manual provides detailed instructions for the installation, operation, and maintenance of your EZAIoT Smart Radiator Thermostat, model EZ-TRV901W. Please read this manual thoroughly before use to ensure proper functionality and safety. Keep this manual for future reference.
2. Veiligheidsinformatie
- Probeer het apparaat niet zelf te demonteren of te repareren. Laat alle onderhoudswerkzaamheden over aan gekwalificeerd personeel.
- Houd het apparaat uit de buurt van water, vocht en extreme temperaturen.
- Ensure batteries are inserted with correct polarity. Replace all batteries at the same time with new ones of the same type.
- Dit apparaat is uitsluitend bedoeld voor gebruik binnenshuis.
- Bewaar verpakkingsmateriaal buiten het bereik van kinderen.
3. Inhoud van het pakket
Controleer of alle artikelen in het pakket aanwezig zijn:
- Smart Radiator Thermostat (EZ-TRV901W) x 1
- Valve Adapters x 6 (for various valve types)
- AA Batteries x 2 (pre-installed or included)
- Gebruikershandleiding (Engels) x 1

Image: Contents of the EZAIoT Smart Radiator Thermostat package, showing the main unit, six different valve adapters, and two AA batteries.
4. Product voorbijview
The EZAIoT Smart Radiator Thermostat EZ-TRV901W is a compact, WiFi6-enabled device designed to control your radiator heating system efficiently. It features a clear OLED color display and can be controlled via a smartphone application.
Belangrijkste kenmerken:
- WiFi6 Connectivity: Ensures stable and low-latency connection for remote control.
- OLED-kleurendisplay: Provides clear temperature readings and settings, with a 4-way rotation function for optimal viewhoeken.
- Compact ontwerp: With a diameter of 50mm, it fits into narrow spaces.
- PID Precision Control: Optimizes heating for energy efficiency.
- App-bediening: Manage and program schedules via the Tuya Smart Life app.
- Compatibiliteit met stembediening: Works with Alexa, Google Home, and Home Assistant.
- Veiligheidsvoorzieningen: Child lock, frost protection, and automatic anti-calc function.

Image: The EZAIoT Smart Radiator Thermostat displaying its current temperature, alongside a smartphone screen showing the corresponding control interface in the app.

Image: A visual breakdown of the thermostat's features, highlighting its internal components, compact dimensions (50mm diameter), OLED color display, and the ability to rotate the display for better viewind.
5. Installatie
The EZAIoT Smart Radiator Thermostat is designed for easy DIY installation. Follow these steps to replace your existing radiator valve:
- De radiator voorbereiden: Turn off your heating system and allow the radiator to cool down.
- Oude thermostaat verwijderen: Unscrew your existing thermostatic radiator valve head. No need to drain water from the radiator.
- Selecteer adapter: Identify the correct adapter from the included set that matches your radiator valve. The thermostat is compatible with most common radiator valves (e.g., M30 x 1.5).
- Install Adapter (if needed): If an adapter is required, screw it onto the radiator valve body.
- Thermostaat bevestigen: Place the EZAIoT Smart Radiator Thermostat onto the adapter or directly onto the valve body and tighten it securely.
- Batterijen plaatsen: Ensure the two AA batteries are correctly inserted into the thermostat.

Image: A hand demonstrating the installation of the smart thermostat onto a radiator. An inset displays different types of valve adapters for compatibility with various radiator valves.
6. App Connection and Configuration
Control your EZAIoT Smart Radiator Thermostat remotely using the Tuya Smart Life application.
- Download app: Download the "Tuya Smart Life" app from your smartphone's app store (iOS or Android).
- Registreren/Inloggen: Maak een account aan of log in op uw bestaande account.
- Apparaat toevoegen: In the app, tap the "+" icon to add a new device. Select "Radiator Thermostat" or search for the device type.
- Koppelingsmodus: Follow the app's instructions to put the thermostat into pairing mode. This usually involves a long press on a button on the thermostat until a pairing indicator appears on the display.
- Maak verbinding met wifi: Select your 2.4GHz WiFi network and enter the password. The thermostat will connect directly to your WiFi network without the need for a separate gateway.
- Naam Apparaat: Once connected, you can name your thermostat (e.g., "Living Room Radiator").

Image: An illustration depicting the smart thermostat wirelessly connecting to a home WiFi router, emphasizing that no additional hub is required for its operation.
7. Gebruiksaanwijzing
7.1 Handmatige bediening
You can adjust the temperature directly on the thermostat by rotating the main body. The OLED display will show the target temperature. The display can be rotated 0°/90°/180°/270° for optimal readability, especially in hard-to-reach areas.
7.2 App-besturing en programmering
Use the Tuya Smart Life app for comprehensive control:
- Temperatuur instellen: Adjust the target temperature from anywhere.
- 7-daagse programmering: Create custom heating schedules for each day of the week to match your routine and save energy.
- Vakantiemodus: Set a specific temperature for an extended period when you are away.
- Kinderslot: Activate the child lock feature to prevent unauthorized changes to settings on the device.
- Detectie van geopend raam: The thermostat can detect sudden drops in temperature (e.g., when a window is opened) and temporarily pause heating to prevent energy waste.
- Vorstbescherming: Handhaaft automatisch een minimumtemperatuur om te voorkomen dat leidingen bevriezen.

Image: Visual representation of the thermostat's advanced features, including PID temperature control for stable heating, voice control capability, automatic window opening detection, and a robust child lock system.
7.3 Energy Efficiency (PID Control)
The thermostat utilizes precise PID (Proportional-Integral-Derivative) control to minimize temperature fluctuations and optimize heating cycles. This technology, combined with scheduled programming and window open detection, helps reduce heating costs significantly by only heating when necessary.

Image: A graph demonstrating the effectiveness of the PID algorithm in maintaining a stable room temperature, illustrating quick response and precise temperature regulation for energy savings.
7.4 Spraakbesturing
Integrate your EZAIoT thermostat with popular voice assistants for hands-free control:
- Amazon Alexa: Link your Tuya Smart Life account to Alexa. Use commands like "Alexa, set Living Room to 22 degrees."
- Google Startpagina: Link your Tuya Smart Life account to Google Home. Use commands like "Hey Google, turn up the heat in the bedroom."
- Thuisassistent: The thermostat is compatible with Home Assistant for advanced smart home setups.

Image: A woman relaxing in bed, using voice commands to control her heating system via a smart speaker, illustrating the convenience of voice operation for the smart thermostat.
8. Onderhoud
8.1 Batterij vervangen
The thermostat is powered by two AA batteries. When the battery indicator on the OLED display shows low power, replace both batteries promptly. Ensure correct polarity when inserting new batteries.
8.2 Reinigen
Clean the thermostat's exterior with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
9. Probleemoplossing
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Thermostaat gaat niet aan | Batterijen zijn leeg of verkeerd geplaatst. | Vervang de batterijen door nieuwe en let daarbij op de juiste polariteit. |
| Kan geen verbinding maken met wifi | Incorrect WiFi password, 5GHz network selected, or thermostat too far from router. | Ensure correct 2.4GHz WiFi password. Move thermostat closer to router. Restart router and thermostat. |
| Temperatuurregeling niet goed | Thermostat not properly installed on valve, or valve stuck. | Check installation and ensure the thermostat can move the valve pin freely. Manually check if the radiator valve is functioning. |
| De app geeft aan dat het apparaat offline is. | WiFi connection lost or internet outage. | Check your home WiFi and internet connection. Restart the thermostat. |
10. Specificaties
- Merk: EZAIoT
- Modelnummer: EZ-TRV901W
- Afmetingen: 50 mm (diameter) x 82.7 mm (hoogte)
- Gewicht: 128 gram
- Materiaal: Acrylonitril-butadieen-styreen (ABS)
- Connectiviteit: WiFi6 (2.4GHz)
- Energiebron: 2 x AA-batterijen
- Speciale kenmerken: Low battery indicator, Temperature indicator, Holiday mode, Programmable, Frost protection
- Type controller: Smart Life-app
- Specifieke toepassingen: Radiatorverwarming
11. Garantie en ondersteuning
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official EZAIoT webAls u problemen ondervindt die niet in deze handleiding worden behandeld, neem dan contact op met de klantenservice voor hulp.