1. Product Overview
The Refoss MTS200 is a smart WiFi heating thermostat designed to control gas boiler and water underfloor heating systems. It allows for precise temperature management, programmable scheduling, and remote control via a dedicated application or smart home platforms.
Image: Refoss Smart WiFi Thermostat MTS200 and its corresponding smartphone application interface, displaying current temperature and heating settings.
2. Safety Information
- Ensure all wiring is performed by a qualified electrician to prevent electric shock or damage to the device.
- Disconnect power before installation or maintenance.
- This device is designed for indoor use only.
- Do not expose the thermostat to water or excessive humidity.
- Keep out of reach of children.
Image: An open instruction manual displaying safety information and package contents in English and other languages.
3. Package Contents
Verify that all items are present in the package:
- Refoss MTS200 Smart WiFi Heating Thermostat
- Mounting Screws
- User Manual
4. Setup and Installation
4.1 Wiring Requirements
The Refoss MTS200 thermostat requires embedded wall installation. It operates on AC power and requires Live (L) and Neutral (N) wire connections. This device does not support battery power.
Image: A diagram detailing the dimensions for embedded wall mounting of the thermostat and illustrating the required Live (L) and Neutral (N) wire connections.
4.2 System Compatibility
This thermostat is designed for boiler and water underfloor heating systems only. It supports gas, water, and electricity boiler systems.
Image: An illustration demonstrating the thermostat's compatibility with various boiler types and water underfloor heating systems.
4.3 App Connection
Download the Refoss app from your smartphone's app store. Follow the in-app instructions to connect your thermostat to your home WiFi network (2.4GHz only). The thermostat is compatible with Apple HomeKit, Amazon Alexa, and Google Home.
5. Operating Instructions
5.1 Basic Temperature Control
Adjust the target temperature directly on the thermostat's display using the up and down arrows, or through the Refoss app.
5.2 Programmable Scheduling
Utilize the Refoss app to set up intelligent 7-day, 24-hour temperature programming. This allows for customized heating schedules to optimize comfort and energy efficiency.
Image: The Refoss app displaying a weekly temperature schedule, illustrating how users can program heating times for different days.
5.3 Remote Control
Control your heating system from anywhere using the free Refoss app on your smartphone. No additional hub is required for basic remote control.
Image: A smartphone displaying the Refoss app, demonstrating remote temperature control functionality.
5.4 Voice Control
Integrate your thermostat with Apple HomeKit, Amazon Alexa, or Google Home for convenient voice control. Adjust the temperature with simple voice commands.
Image: A person interacting with a smart speaker to control the thermostat via voice commands, highlighting compatibility with major smart home platforms.
5.5 Dual Sensor System
The thermostat features both an internal sensor to detect ambient room temperature and an optional external sensor for precise floor temperature monitoring, ensuring accurate heating control.
Image: A diagram illustrating the internal and external temperature sensors of the thermostat for precise temperature readings.
5.6 Open Window Detection
The thermostat can detect open windows and automatically pause heating to prevent energy waste. A notification will be sent to your smartphone.
Image: A smartphone displaying a notification indicating that an open window has been detected and heating has been turned off.
5.7 HomeKit Remote Control with Home Hub
For remote control via Apple HomeKit, set up a HomePod, HomePod Mini, or Apple TV as a Home Hub. This allows you to control your HomeKit accessories remotely using the Apple Home app. The Refoss app does not require a Home Hub for remote control.
Image: Apple Home devices (HomePod, HomePod Mini, Apple TV) alongside a smartphone showing the Refoss app, demonstrating HomeKit integration. For more information on setting up a Home Hub, visit Apple Support.
5.8 Heating Tracking
Monitor your heating system's status, track temperature trends, and view the total duration of heating. The app can also calculate associated heating expenses.
Image: A smartphone displaying a graph of heating duration and estimated costs over time.
6. Maintenance
To ensure optimal performance, periodically clean the thermostat's display and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
7. Troubleshooting
- Thermostat not powering on: Check power connections and ensure the circuit breaker is not tripped. Verify Live (L) and Neutral (N) wires are correctly connected.
- Cannot connect to WiFi: Ensure your WiFi network is 2.4GHz. Check WiFi signal strength at the thermostat's location. Restart your router and the thermostat.
- Inaccurate temperature readings: Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources. If using an external sensor, ensure it is properly installed.
- Heating not activating: Verify the thermostat is set to heating mode and the target temperature is above the current room temperature. Check boiler operation.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Refoss |
| Model Number | MTS200 |
| Color | White |
| Product Dimensions | 4.3 x 8.6 x 8.6 cm |
| Item Weight | 212 g |
| Power / Wattage | 750 watts |
| Voltage | 240 Volts |
| Material | Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Glass Panel |
| Connectivity Technology | Wi-Fi (2.4GHz) |
| Special Features | Programmable, Backlight |
| Controller Type | Amazon Alexa, Google Home, Apple HomeKit |
| Specific Uses | Boiler, Heated |
9. Warranty and Support
9.1 Warranty
This product comes with a 2-year warranty.
9.2 Support
For technical assistance or customer support, please contact:
- Email: support@refoss.net
- Website: www.refoss.net/support
