1. Introduction
Thank you for choosing the Beok TGM50 Zigbee Smart Thermostat. This intelligent digital humidity controller is designed for floor heating systems, providing precise room temperature control and household temperature management. It enhances comfort, promotes energy saving, and integrates seamlessly into modern smart home ecosystems.
This manual provides detailed instructions for installation, operation, and maintenance of your thermostat. Please read it carefully before use.
2. Safety Instructions
- Read this manual carefully before installation and operation. Improper use may damage the product or create a dangerous situation.
- Installation must be performed by well-trained and experienced service technicians.
- Ensure the power supply is disconnected before any installation or wiring work to prevent electric shock.
- Do not expose the thermostat to water or excessive humidity.
- After installation, operate the product strictly following this user guide.
3. Package Contents
Please check the package for the following items:
- Thermostat Host: 1 pc
- Guide/Manual: 1 pc
- Certificate of Conformity: 1 pc
- Screws: 2 pcs
- External Sensor (optional): 1 pc (Note: External sensor is not included with TGM50-ZB-WP and TGM50-ZB-WPB models)

Component Inclusion by Model:
| Model | Thermostat | Screws | Manual | External Sensor |
|---|---|---|---|---|
| TGM50-ZB-EP | Included | Included | Included | Included |
| TGM50-ZB-WP | Included | Included | Included | Not Included |
| TGM50-ZB-WPB | Included | Included | Included | Not Included |
4. Specifications
| Feature | Specification |
|---|---|
| Temperature Sensor | NTC |
| Temperature Accuracy | ±1°C |
| Display Screen | LCD |
| Working Environment | -5°C to 50°C |
| Self-consumption Power | <1W |
| Temperature Setting Range | 5°C to 60°C |
| Display Range | 0°C to 51°C |
| Load Current (Water Heating) | 3A |
| Load Current (Electric Heating) | 16A |
| Load Current (Gas Boiler) | 3A |
| Voltage | AC100-240V, 50/60Hz |
| Wattage | 2W |
| Certification | CE |
5. Setup and Installation
5.1. Wiring Diagram
Ensure power is OFF before wiring. Connect the thermostat according to the specific model for your heating system.

TGM50-ZB-EP (for Electric Underfloor Heating)
- Terminals 1 & 2 (L, N): Power input (AC100-240V).
- Terminals 3 & 4 (N1, L1): Load output to electric heating element (16A).
- Terminals 6 & 7 (NTC): External floor sensor connection.

TGM50-ZB-WP (for Water Underfloor Heating)
- Terminals 1 & 2 (L, N): Power input (AC100-240V).
- Terminals 3 & 4 (N, open/close): Output to water valve actuator (3A).
- Terminals 6 & 7 (NTC): External floor sensor connection (if applicable).
TGM50-ZB-WPB (for Gas Boiler Heating)
- Terminals 1 & 2 (L, N): Power input (AC100-240V).
- Terminals 3 & 4 (Dry Contact): Dry contact output to gas boiler (3A).
- Terminals 6 & 7 (NTC): External floor sensor connection (if applicable).
5.2. Mounting Steps
- Connect the power box according to the appropriate wiring diagram for your model.
- Separate the power supply unit from the control board cable of the thermostat.
- Screw the power supply unit securely into a standard 86-type wall box.
- Connect the control board cable to the power supply unit, align the buckles, and gently push the thermostat into the wall box until it clicks into place.
5.3. Wi-Fi Connection and App Setup
To enable smart features, connect your thermostat to Wi-Fi and set it up with the Tuya Smart or Smart Life app.
5.3.1. App Download
Search for "Tuya Smart" or "Smart Life" in your mobile app store (Google Play Store or Apple App Store) and download the application.
5.3.2. Register an Account
- Open the Tuya Smart/Smart Life app.
- If you don't have an account, tap "Register" or "Create New Account".
- Read and agree to the Privacy Policy.
- Select your country/region, enter your phone number or email address, and tap "Get Verification Code".
- Enter the received verification code and set your password.
- Tap "Finish" to complete registration.
5.3.3. Connect Thermostat to Wi-Fi (Pairing Mode)
- Ensure your thermostat is powered on.
- Press and hold the Up Arrow button on the thermostat for 5 seconds.
- The Wi-Fi icon on the thermostat display will start flashing, indicating it's in pairing mode.
5.3.4. Add Gateway Device (if not already added)
The TGM50 is a Zigbee thermostat, requiring a Zigbee gateway to connect to your Wi-Fi network and the app.
- In the Tuya Smart/Smart Life app, tap "Add Device" or the "+" icon in the top right corner.
- Select "Gateway" or "Zigbee Gateway" from the device list.
- Follow the app's instructions to connect your Zigbee gateway to your home Wi-Fi network. Ensure the gateway's indicator light is blinking as per its manual.
5.3.5. Add Thermostat to Gateway
- Once your Zigbee gateway is added, open its control panel in the app.
- Tap "Add subdevice" or "+" to add a new Zigbee device.
- Ensure your TGM50 thermostat is in Wi-Fi pairing mode (Wi-Fi icon flashing).
- The app will search for nearby Zigbee devices. Once found, select your thermostat to add it.
- You can rename the thermostat for easier identification (e.g., "Living Room Thermostat").
6. Operating Instructions
6.1. Thermostat Interface and Icons
The LCD screen displays various information and icons:
- Wi-Fi Icon: Indicates Wi-Fi connection status. Flashing means pairing mode.
- Auto Mode Icon: Thermostat is operating in programmed schedule.
- Manual Mode Icon: Thermostat is operating at a manually set temperature.
- Open Window Detection Icon: Activated when a sudden temperature drop is detected.
- Leave Mode Icon: Thermostat is set to a lower temperature for energy saving when away.
- Locking Icon: Child lock is active, preventing accidental changes.
- Heating Icon (flames/waves): Indicates the heating system is active.
- SET: Indicates the set temperature.
6.2. Basic Operation
- Power On/Off: Press the Power button to turn the thermostat on or off.
- Mode Switching: Press the M button to switch between Manual Mode and Leave Mode.
- Temperature Adjustment: Use the Up Arrow and Down Arrow buttons to adjust the set temperature.
- Child Lock: To activate or deactivate the child lock, simultaneously press and hold the Up Arrow and Down Arrow buttons for 5 seconds. The lock icon will appear/disappear.
6.3. Advanced Option Setting
To access advanced settings, ensure the thermostat is OFF. Then, press and hold the M button and the Down Arrow button simultaneously for 5 seconds. Use the M button to cycle through options and Up/Down Arrow buttons to adjust values. Press the Power button to exit.
| Option No. | Setting | Description & Default |
|---|---|---|
| 01 | Temperature Compensation | Calibrate room temperature. Default: -2°C (Range: -9.9°C to 9.9°C). |
| 02 | Sensor Selection | IN (internal sensor) default. Options: ALL (all internal), OUT (external). |
| 03 | Limit Temperature Value | Maximum set temperature. Default: 60°C (Range: 35°C to 60°C). |
| 04 | Temperature Accuracy | Temperature control precision. Default: 1°C (Range: 0.5°C to 10°C). |
| 05 | Antifreeze Function | Prevents pipes from freezing. Default: OFF. Turn ON to activate. |
| 06 | Rest Day Selection | Configure weekend/rest days for programming. Options: 5 (2-day weekend), 6 (1-day off), 7 (no rest), OFF (no programming). |
| 07 | Main/Auxiliary Reverse Selection | Default: 00 (main reverse). 01 (auxiliary reverse). Professional guidance recommended. |
| 08 | Standby Backlight Brightness | Adjust backlight intensity. Options: 00 (off), 01 (low), 02 (mid), 03 (high). Default: 03. |
| 09 | Set Temperature Limit | Upper limit for manual temperature setting. Default: 60°C (Range: 15°C to 95°C). |
| 10 | Sound | Enable/disable button press sounds. Default: ON. |
| 11 | Window Opening Detection | Automatically turns off heating if a sudden temperature drop is detected. Default: ON. |
| 12 | Power Outage Memory Function | Determines thermostat behavior after power loss. Options: 0 (memory), 1 (turn on), 2 (turn off). |
| 13 | Reset | Restore factory settings. Select "--_" and confirm. |
6.4. Time Programming Instructions
The thermostat allows you to set a weekly schedule for automatic temperature control. This feature is available in Auto Mode.
| Option | Period | Time | Default Temp |
|---|---|---|---|
| Working Days | 1 | 06:00 | 20°C |
| 2 | 08:00 | 16°C | |
| 3 | 11:30 | 16°C | |
| 4 | 12:30 | 16°C | |
| 5 | 17:00 | 22°C | |
| 6 | 22:00 | 16°C | |
| Holidays | 1 | 08:00 | 22°C |
| 2 | 23:00 | 16°C |
6.5. Smart Features and App Control
The Beok TGM50 thermostat offers advanced smart features for enhanced comfort and energy efficiency.

- Remote Control via App: Use the Tuya Smart or Smart Life app to adjust temperature, change modes, and set schedules from anywhere.
- Voice Control: Compatible with Amazon Alexa, Google Home, and Yandex Alice. You can control your thermostat using voice commands (e.g., "Alexa, set living room to 22 degrees Celsius").
- Open-Window Detection: When the room temperature drops by 6°C within 4 minutes, the thermostat automatically activates open-window mode, turning off heating to save energy. Heating resumes when the temperature rises by 3°C or after 48 minutes. This feature can be enabled/disabled in advanced settings.
- Away Mode: Set a lower temperature for energy saving when you are away from home.
- Anti-frost Function: Automatically maintains a minimum temperature (e.g., 5°C) to prevent pipes from freezing in cold conditions.
- Power-off Memory: Retains settings even after a power outage.
- Backlight Adjustable: Adjust the brightness of the display backlight.
7. Maintenance
The Beok TGM50 Smart Thermostat requires minimal maintenance.
- Cleaning: Gently wipe the thermostat's screen and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray liquids directly onto the device.
- Avoid Obstructions: Ensure the thermostat is not covered by furniture, curtains, or other objects that could obstruct its temperature sensor, leading to inaccurate readings.
8. Troubleshooting
If you encounter issues with your Beok TGM50 thermostat, try the following solutions:
- Thermostat Not Powering On: Check the main power supply to your heating system and ensure the thermostat is correctly wired and seated in its wall box.
- Inaccurate Temperature Readings: Ensure the thermostat's sensor is not obstructed. If using an external sensor, check its connection. Consider adjusting the temperature compensation in advanced settings (Option 01).
- Wi-Fi Connection Issues:
- Ensure your Zigbee gateway is powered on and connected to your home Wi-Fi.
- Verify the thermostat is in pairing mode (flashing Wi-Fi icon).
- Check your Wi-Fi network for stability and ensure the gateway is within range.
- Restart your Wi-Fi router, Zigbee gateway, and the thermostat.
- Heating Not Activating: Check the set temperature; it must be higher than the current room temperature. Verify the thermostat is in the correct mode (Manual or Auto). Check the wiring to your heating system.
- Thermostat Unresponsive: Try restarting the thermostat by turning it off and on. If issues persist, consider performing a factory reset (Advanced Option 13), then reconfigure.
9. User Tips
- App Integration: Users have reported excellent compatibility with both the Tuya Smart app and Home Assistant, allowing for flexible smart home integration.
- Testing: After installation, thoroughly test all functions, including app control, voice commands, and scheduled programming, to ensure optimal performance.
- Placement: Install the thermostat on an interior wall, away from direct sunlight, drafts, or heat sources (like lamps or appliances), to ensure accurate temperature readings.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact your retailer/manufacturer directly. Keep your proof of purchase for warranty claims.