1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Meross MTS200BHK Smart Wi-Fi Boiler Thermostat. Please read this guide thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.

Imatge 1.1: The Meross MTS200BHK Smart Wi-Fi Boiler Thermostat with its accompanying mobile application interface, displaying temperature settings and control options.
2. Producte acabatview
The Meross MTS200BHK is an intelligent Wi-Fi thermostat designed for boiler and water-fed heating systems. It offers precise temperature control and smart home integration for enhanced comfort and energy efficiency.
Característiques principals:
- Voice and Remote Control: Compatible with Apple HomeKit, Siri, Amazon Alexa, and Google Assistant. Control your heating remotely via the Meross app or Apple Home app.
- Detecció de la finestra oberta: Automatically pauses heating for 30 minutes when an open window is detected, preventing energy waste.
- Alta precisió: Temperature accuracy of 0.1°C with an adjustable range of 5-35°C.
- Sistema de sensor dual: Features an integrated air temperature sensor and an external floor temperature sensor (for floor heating protection).
- Connectivitat Wi-Fi: Operates on 2.4GHz Wi-Fi, no hub required.
- Mode d'estiu: Optimizes cooling for systems like air-source heat pumps during warmer months.
3. Configuració i instal·lació
3.1 Comprovació de compatibilitat
The Meross MTS200BHK thermostat is designed for boiler and water-fed heating systems. It is no compatible with electric floor heating systems. Please verify your heating system type before installation.

Imatge 3.1: This diagram illustrates that the thermostat is compatible with boiler and water-fed heating systems, but not with electric heating mats.
For a detailed compatibility check, you can scan the QR code below or visit the provided link:

Imatge 3.2: Scan this QR code to access the Meross compatibility checker for the MTS200BHK thermostat.
Compatibility Link: https://www.meross.com/compatibility-check/mts200-eu
3.2 Requisits de cablejat
The thermostat requires both phase and neutral conductors for power and operation. It is designed for in-wall installation and does not operate on batteries. For boiler systems, a minimum of 4 wires are typically required. For underfloor heating, 3 wires are generally needed.

Imatge 3.3: This diagram illustrates the wiring connections for the thermostat, indicating that both phase (brown wire) and neutral (blue wire) conductors are required. Dimensions are also shown.
Important: Electrical installation should be performed by a qualified professional. Ensure power is turned off at the circuit breaker before beginning any wiring work.
3.3 Descàrrega i emparellament de l'aplicació
- Download the Meross app from the Apple App Store or Google Play Store.
- Create a Meross account or log in if you already have one.
- Follow the in-app instructions to add your MTS200BHK thermostat. Ensure your smartphone is connected to a 2.4GHz Wi-Fi network during the pairing process.
4. Instruccions de funcionament
4.1 Control i programació d'aplicacions
The Meross app allows you to control your thermostat from anywhere with an internet connection. You can adjust temperature, set schedules, and monitor heating status.

Imatge 4.1: The Meross app interface displaying a weekly heating schedule, allowing users to program desired temperatures for different times of the day and week.
4.2 Control de veu
Integrate your thermostat with popular voice assistants for convenient hands-free control.
- Apple HomeKit/Siri: Use commands like "Hey Siri, set the temperature to 22 degrees."
- Amazon Alexa: Use commands like "Alexa, set the thermostat to 22 degrees."
- Assistent de Google: Use commands like "Hey Google, set the temperature to 22 degrees."

Imatge 4.2: This image demonstrates the voice control capabilities of the Meross thermostat, showing example commands for Siri, Alexa, and Google Assistant to adjust temperature settings.
4.3 Detecció de la finestra oberta
To conserve energy, the thermostat automatically detects open windows. If a significant temperature drop is registered, the heating will temporarily turn off for 30 minutes. The app will also send notifications to alert you.
4.4 Mode d'estiu
The Summer Mode feature is designed to optimize cooling for systems such as air-source heat pumps during warmer seasons. Activating this mode helps maintain an ideal room temperature by adjusting the thermostat's behavior for cooling operations.

Imatge 4.3: The thermostat screen showing a snowflake icon, representing the activation of Summer Mode for cooling systems.
4.5 Tracking Heating Status
The Meross app allows you to track your heating system's status, view temperature history, monitor cumulative heating duration, and even estimate heating costs by inputting your energy tariff.

Imatge 4.4: The Meross app displaying detailed heating statistics, including historical temperature graphs and estimated heating costs over various periods.
5. Manteniment
- Neteja: Gently wipe the thermostat screen and body with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Actualitzacions de programari: Ensure your Meross app and thermostat firmware are up to date. Updates often include performance improvements and new features. Check the Meross app for available updates.
- Cicle d'alimentació: If the thermostat becomes unresponsive, try turning off the power at the circuit breaker for a few seconds, then turn it back on.
6. Solució De Problemes
Problemes comuns i solucions:
- Thermostat not connecting to Wi-Fi:
- Ensure your Wi-Fi network is 2.4GHz. The thermostat does not support 5GHz Wi-Fi.
- Check that your Wi-Fi router is within range and functioning correctly.
- Restart your router and the thermostat.
- Verify your Wi-Fi password is entered correctly in the Meross app.
- Lectura de temperatura inexacta:
- Assegureu-vos que el termòstat no estigui exposat a la llum solar directa, corrents d'aire ni fonts de calor que puguin afectar el seu sensor intern.
- If using an external sensor, ensure it is properly installed and positioned.
- The Meross app may allow for temperature calibration if a consistent offset is observed.
- Heating not turning on/off:
- Check the wiring connections to ensure they are secure and correct.
- Verify the thermostat is in the correct operating mode (e.g., not in Summer Mode if heating is desired).
- Confirm the schedule or manual setting is active and the target temperature is set appropriately.
- El control per veu no funciona:
- Ensure the thermostat is properly linked to your Apple HomeKit, Alexa, or Google Assistant account.
- Comproveu la vostra connexió a Internet.
- Use the exact commands specified by the voice assistant.
7. Especificacions
| Característica | Especificació |
|---|---|
| Marca | Meross |
| Nom del model | MTS200BHK(EU) |
| Dimensions del producte | 8.6 x 8.6 x 4.2 cm; 212 g |
| Voltage | 230 Volts |
| Material | Vidre |
| Tecnologia de connectivitat | Wi-Fi (només 2.4 GHz) |
| Models compatibles | Boiler/Water-fed heating systems. Works with Apple HomeKit, Amazon Alexa, Google Assistant, SmartThings. |
| Característiques especials | Built-in display, Open Window Detection, Summer Mode |
| Tipus de control de temperatura | Calefacció |
| Components inclosos | Smart Wi-Fi Boiler Thermostat |
8. Garantia i Suport
For warranty information, technical support, and frequently asked questions, please visit the official Meross website or contact their customer service directly. Details can typically be found in the product packaging or on the Meross support page.





