1. Introduction
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. Specifications
| Attribute | Value |
|---|---|
| Model Number | MTS215B |
| Power Source | AC (100-250V~, 50/60Hz) |
| Output | 3A Max. |
| Battery Included | No |
| Wireless Communication | Wi-Fi |
| Inbox Adaptor | No |
| High-concerned chemical | None |
| Dimensions | 86 x 86 x 48 mm |
| Heating System Compatibility | Boiler, or water underfloor heating systems |
| Set Point Range | 5~35℃ |
| Accuracy | ±0.5 ℃ |
| Power Consumption | <1 Watt |
| Origin | Mainland China |
3. Compatibility
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 not compatible with electric heating systems.
Before purchasing 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. Setup and Installation
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)
Wiring Details: 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. Operating Instructions
Manual Control
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.
Remote and Voice Control
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. Smart Features
Smart Scheduling
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.
Open Window Detection
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. Maintenance
To ensure optimal performance and longevity of your Meross Smart Matter Thermostat, follow these simple maintenance guidelines:
- Cleaning: 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.
- Dust Removal: 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.
- Software Updates: 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. Troubleshooting
If you encounter issues with your Meross Smart Matter Thermostat, consider the following basic troubleshooting steps:
- No Power/Display Off: 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.
- Thermostat Not Responding: Try restarting the thermostat by turning off the power at the circuit breaker for a few minutes, then turning it back on.
- App Connectivity Issues: 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.
- Incorrect Temperature Readings: 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. User Tips
- DIY Installation: 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.
- Multi-Room Control: Utilize the Meross app's features for multi-room temperature control to maximize energy savings across different zones in your home.
- Energy Tracking: Regularly review the heating usage graphs in the Meross app. Input your energy tariff to get estimated heating expenses and identify opportunities for further savings.
- Smart Home Integration: Leverage voice commands with Alexa, Google Assistant, or Siri for hands-free temperature adjustments and seamless integration into your smart home ecosystem.
10. Warranty and Support
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.
