1. Introducció
The Meross Smart Matter Thermostat MTS215B is designed to provide intelligent temperature control for your home's boiler or water underfloor heating system. This thermostat integrates seamlessly with Matter, Apple HomeKit, Amazon Alexa, and Google Assistant, allowing for convenient remote and voice control. Its minimalist design and smart features aim to enhance comfort and energy efficiency in your living space.

Meross Smart Thermostat MTS215B and its companion mobile application.
2. Especificacions
| Atribut | Valor |
|---|---|
| Número de model | MTS215B |
| Font d'alimentació | AC (100-250V~, 50/60Hz) |
| Sortida | 3A màx. |
| Bateria inclosa | No |
| Comunicació sense fils | Wi-Fi |
| Adaptador de safata d'entrada | No |
| Substància química molt preocupant | Cap |
| Dimensions | 86 x 86 x 48 mm |
| Compatibilitat del sistema de calefacció | Boiler, or water underfloor heating systems |
| Rang de punts fixats | 5 ~ 35 ℃ |
| Precisió | ± 0.5 ℃ |
| Consum d'energia | <1 watts |
| Origen | Xina continental |
3. Compatibilitat
The Meross MTS215B thermostat is specifically designed for water heating systems. It is compatible with most boiler systems and water underfloor heating systems. It is no compatible with electric heating systems.
Abans de la compraasing or installing, it is recommended to scan the QR code below to check for compatibility with your specific heating setup.

Scan this QR code to verify compatibility.

The thermostat works with boiler/water heating systems but is not compatible with electric heating systems.
4. Configuració i instal·lació
The thermostat requires embedded wall installation and is powered by Live and Neutral wires (230VAC). For boiler systems, a minimum of 4 wires are required. For underfloor heating systems, a minimum of 3 wires are required.
Installation is designed to be DIY-friendly and can typically be completed in under 30 minutes by following the step-by-step setup wizard in the Meross app.
Wiring Diagram (Boiler Example)

Detalls del cablejat: The Neutral wire is typically blue. The Live wire is typically brown. Ensure your wall box meets the minimum dimensions: Height >50.5mm, Width >50.5mm, Depth >32mm, with a standard 60mm mounting distance.
Important: Only the wiring for a boiler system is shown. Please refer to the Meross app for detailed wiring instructions specific to your heating system type (boiler or water underfloor heating) and local electrical codes. Always ensure power is off before performing any wiring.
5. Instruccions de funcionament
Control manual
The thermostat features a minimalist design with a sleek glass panel. You can adjust the temperature directly on the device with a simple touch.

Adjust temperature with a simple touch on the glass panel.
Control remot i per veu
Control your thermostat remotely via the Meross app anytime, anywhere. The thermostat also supports voice commands through Apple HomeKit (Siri), Amazon Alexa, and Google Assistant.

Use voice commands with Alexa or Google Assistant, or control via the Meross app.
6. Funcions intel·ligents
Programació intel·ligent
Optimize your heating costs with a 24/7 smart graphic schedule available through the Meross app. This feature helps ensure you never return to a cold home or leave the house with the heating system running unnecessarily, contributing to energy savings.
Energy Saving and Usage Tracking
Track your heating usage through the Meross app to conserve energy and reduce costs. The app provides detailed insights into your heating system's status, temperature curves, and cumulative heating duration.

By inputting your heating tariff, the Meross app can assist in estimating your heating expenses.
Obre la detecció de finestres
The thermostat features an open window detection function. It automatically pauses heating when a window is opened, preventing energy waste and allowing you to enjoy fresh air without concern.
Dual Sensor System
The MTS215B incorporates a dual sensor system for precise temperature management. It includes an integrated sensor for ambient air temperature measurement and an optional external sensor for overheating protection of the floor, particularly useful for underfloor heating systems.

The thermostat features an integrated sensor and supports an optional in-wall external sensor.
7. Manteniment
To ensure optimal performance and longevity of your Meross Smart Matter Thermostat, follow these simple maintenance guidelines:
- Neteja: Gently wipe the thermostat's glass panel and body with a soft, dry, or slightly damp cloth. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the surface.
- Eliminació de pols: Periodically remove any dust accumulation from the vents on the sides or top of the thermostat to ensure proper air circulation for the integrated temperature sensor.
- Actualitzacions de programari: Keep the Meross app updated to the latest version and allow the thermostat's firmware to update when prompted. These updates often include performance improvements and new features.
8. Solució De Problemes
If you encounter issues with your Meross Smart Matter Thermostat, consider the following basic troubleshooting steps:
- Sense alimentació/Pantalla apagada: Check the circuit breaker for your heating system to ensure power is supplied to the thermostat. Verify that the Live and Neutral wires are correctly connected and secure.
- El termòstat no respon: Try restarting the thermostat by turning off the power at the circuit breaker for a few minutes, then turning it back on.
- Problemes de connectivitat de l'aplicació: Ensure your home Wi-Fi network is active and the thermostat is within range. Check that your smartphone is connected to the internet. Restart your router and the Meross app.
- Lectures de temperatura incorrectes: Ensure the thermostat's vents are not obstructed by dust or furniture. If an external sensor is used, verify its connection.
- Heating System Not Activating: Confirm that the thermostat is set to 'Heat' mode and the target temperature is above the current room temperature. Check your boiler or heating system for any error codes or issues.
For more complex issues, refer to the Meross app's help section or contact Meross customer support.
9. Consells d'usuari
- Instal·lació de bricolatge: The thermostat is designed for DIY installation. Follow the step-by-step setup wizard in the Meross app for a smooth installation process, which typically takes less than 30 minutes.
- Control multi-habitació: Utilize the Meross app's features for multi-room temperature control to maximize energy savings across different zones in your home.
- Energy Tracking: Regularment review the heating usage graphs in the Meross app. Input your energy tariff to get estimated heating expenses and identify opportunities for further savings.
- Integració de la llar intel·ligent: Leverage voice commands with Alexa, Google Assistant, or Siri for hands-free temperature adjustments and seamless integration into your smart home ecosystem.
10. Garantia i Suport
For warranty information, please refer to the official Meross website or the documentation provided with your purchase. If you require technical assistance, have questions about installation, or need support for any features, please contact Meross customer service through their official channels. Details can typically be found on the Meross website or within the Meross mobile application.





