1. Introduction
The Refoss Smart Wi-Fi Thermostat MTS200 is designed to provide intelligent control over your home's heating system, offering comfort and energy efficiency. Compatible with most water-borne boiler and underfloor heating systems, this thermostat integrates seamlessly with smart home ecosystems like Apple HomeKit, Amazon Alexa, and Google Assistant, allowing for convenient remote and voice control.
The Refoss Smart Wi-Fi Thermostat MTS200, shown alongside a smartphone displaying its intuitive control application.
2. Setup & Installation
2.1 Compatibility
The MTS200 thermostat is designed for use with water-borne boiler and underfloor heating systems. It supports gas, water, and electricity boiler systems.
The thermostat is compatible with both boiler and water underfloor heating systems.
2.2 Physical Installation
The device requires embedded wall installation. Ensure AC Live (L) and Neutral (N) wires are available for connection. The thermostat does not support battery power.
Detailed view of the thermostat's dimensions and wiring requirements for embedded wall mounting.
2.3 Network Connection
The thermostat supports 2.4 GHz Wi-Fi networks only. No separate hub is required when using the Refoss app for control.
- Download the free Refoss app from your device's app store.
- Follow the in-app instructions to add your thermostat to your Wi-Fi network.
3. Operating Instructions
3.1 Remote Control via App
Control your heating remotely from anywhere using the Refoss app on your smartphone or tablet. Adjust temperature, set schedules, and monitor heating status.
The Refoss app allows for convenient remote control of your thermostat.
3.2 Voice Control
The thermostat is compatible with Apple HomeKit, Amazon Alexa, and Google Assistant, enabling hands-free temperature adjustments using voice commands.
Control your thermostat using voice commands through compatible smart assistants.
3.3 Programmable Schedules
Customize your heating with intelligent 7-day, 24-hour temperature programming. Set up to eight activities per day to optimize comfort and energy savings.
Create custom heating schedules for each day of the week.
3.4 Dual Sensor System
Equipped with dual temperature sensors for precise measurement. An integrated sensor measures ambient air temperature, while an external sensor (requires external sensor line installation) detects required floor temperature.
The thermostat utilizes both internal and external sensors for accurate temperature readings.
3.5 Open Window Detection
The thermostat features an open window detection function. If a rapid temperature drop is detected (indicating an open window), you will receive an app notification, and the thermostat will pause heating for 30 minutes to prevent energy waste.
Receive alerts and save energy with the open window detection feature.
3.6 Heating Status Tracking
Monitor your heating system's status, track temperature trends, and measure total heating duration. The app can also calculate associated heating expenses.
Track your heating usage and associated costs through the Refoss app.
3.7 HomeKit Remote Control with Home Hub
For remote control via Apple HomeKit, set up your HomePod, HomePod Mini, or Apple TV as a Home Hub. This allows you to control HomeKit accessories remotely via the Apple Home app. A Home Hub is NOT needed for the Refoss app to control devices remotely.
Utilize Apple HomeKit for remote control with a Home Hub. For more information, visit Apple Support.
3.8 Other Useful Functions
- Summer Mode: Can be used for cooling in summer, requiring a compatible cooling system (e.g., air-to-air heat pump).
- Child Safety: Lock the thermostat to prevent unauthorized changes.
- Temperature Calibration: Adjust temperature readings for accuracy.
- Frost Protection: Prevents pipes from freezing by maintaining a minimum temperature.
- Adjustable Screen Brightness: Customize display brightness for comfort.
- Multiroom Control: Supports 7/24 hour scheduling for different rooms.
4. Maintenance
To ensure optimal performance and longevity of your Refoss Smart Wi-Fi Thermostat, follow these general maintenance guidelines:
- Cleaning: Gently wipe the thermostat's screen and body with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Software Updates: Regularly check the Refoss app for available firmware updates to ensure your thermostat has the latest features and security enhancements.
- Environmental Conditions: Ensure the thermostat is not exposed to extreme temperatures, direct sunlight, or excessive humidity, which can affect its performance.
5. Troubleshooting
If you encounter issues with your Refoss Smart Wi-Fi Thermostat, consider the following common troubleshooting steps:
- Connectivity Issues: Ensure your Wi-Fi router is powered on and the thermostat is within range. Verify that your Wi-Fi network is 2.4 GHz. If you have a mesh network or a router broadcasting both 2.4 GHz and 5 GHz with the same SSID, temporarily disable the 5 GHz band during the initial setup process to ensure the thermostat connects to the 2.4 GHz network.
- App Not Responding: Close and reopen the Refoss app. If the issue persists, restart your smartphone and/or the thermostat (by temporarily cutting power at the circuit breaker if necessary).
- Inaccurate Temperature Readings: Ensure the thermostat's sensors are not obstructed and are not exposed to direct drafts or heat sources. If using an external sensor, ensure it is properly installed and connected. Consider using the temperature calibration feature in the app.
- Thermostat Not Heating/Cooling: Check the thermostat's mode (heating/cooling) and set temperature. Verify that your boiler or heating system is functioning correctly.
- Factory Reset: As a last resort, you may perform a factory reset. Refer to the in-app instructions or the included HomeKit manual for specific steps, as this will erase all settings and require re-setup.
For further assistance, please contact Refoss customer support.
6. Specifications
| Attribute | Detail |
|---|---|
| Brand | Refoss |
| Model Number | MTS200 |
| Color | White |
| Product Dimensions (L x W x H) | 8.6 x 4.35 x 8.6 cm |
| Weight | 212 grams |
| Power | 750 Watts |
| Voltage | 240 Volts |
| Material | Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Glass |
| Features | Temperature display, Window sensor, Programmable |
| Controller Type | Apple HomeKit |
| Specific Uses | Boiler heating |
| Temperature Control Type | Heating |
| Connectivity Technology | WLAN (2.4 GHz) |
| Components Included | Smart thermostat, HomeKit manual, User manual, Sensor, Screws |
7. Warranty & Support
Refoss provides a two-year product warranty for the MTS200 Smart Wi-Fi Thermostat, ensuring peace of mind regarding manufacturing defects and performance issues.
Additionally, Refoss offers lifetime technical support. If you have any questions, require assistance with installation, setup, operation, or troubleshooting, please do not hesitate to contact Refoss customer service. They aim to respond to inquiries within 24 hours.
For contact information, please refer to the Refoss official website or the contact details provided in your product packaging.
