1. Introduction
The KTF0187 series smart thermostats are designed for local or remote control of underfloor heating systems, ensuring your home maintains a comfortable temperature while optimizing energy usage. These thermostats feature a color screen, automatic screen rotation, and multi-level setup menu options, simplifying programming and operation.
2. Product Models
The KTF0187 series offers different models tailored for specific heating systems:
- KTF0187A: Electric heating thermostat (16A)
- KTF0187B: Water heating thermostat (3A)
- KTF0187C: Water and gas boiler thermostat (3A)
3. Technical Specifications
| Specification | Value |
|---|---|
| Power Supply | 90-240Vac 50/60Hz |
| Temperature Adjustment Range | 5~35°C |
| Limit Temperature Range | 1~70°C |
| Display Accuracy | 0.5°C |
| Probe Sensor | NTC(10k)1% |
| Running Program | Set per 1 week as a cycle |
| Installation Type | Recessed (in the wall) |
| Panel Size (W*H*D) | 86mm * 86mm * 15mm |
| Product Weight | 0.23 kg |
| Certification | CE |
4. Key Features
- Smart Home Integration: Works seamlessly with Smart Life, Tuya APP, Amazon Alexa, and Google Assistant.
- Window Opening Detection: Automatically pauses heating if a significant temperature drop (indicating an open window) is detected, resuming once ventilation is complete.
- Adjustable Screen Brightness: Customize display brightness for comfort, day or night.
- Touch Key Operation: Intuitive control via responsive touch buttons.
- Child Lock: Prevents unauthorized changes to settings.
- Multi-Language Support: Select from English, Deutsch, Nederlands, and Français.
- Device Sharing: Easily share control of the thermostat with family members.
- Automatic Screen Rotation: Display adjusts orientation automatically.
5. Installation and Setup
5.1 Package Contents
- Thermostat Unit
- Mounting Screws
- User Manual
- 2.5m External Sensor (included only with KTF0187A electric heating model)
5.2 Dimensions
The thermostat panel measures 86mm x 86mm, with a depth of 15mm when installed. The back unit for wiring is 50mm deep.
Figure 5.2.1: Thermostat Dimensions and Back Panel
5.3 Wiring Diagrams
Important: Installation should be performed by a qualified electrician to ensure safety and proper functionality. Always turn off power at the circuit breaker before beginning any wiring work.
The KTF0187A model for electric heating supports both 4-wire and 3-wire connections. Note that terminals N and N1 are internally conductive.
Figure 5.3.1: KTF0187A Electric Heating Wiring Diagram (16A)
5.4 App Connection (Smart Life / Tuya)
To control your thermostat remotely, connect it to the Smart Life or Tuya app:
- Download the 'Smart Life' or 'Tuya Smart' app from your smartphone's app store (available on iOS and Android).
- Register for a new account or log in to an existing one.
- Follow the in-app instructions to add a new device. This typically involves putting the thermostat into pairing mode (refer to the on-screen prompts on the thermostat or app for specific steps).
- Once connected, you can control the thermostat from anywhere.
Figure 5.4.1: App Remote Control via Smart Life & Tuya
6. Operating Instructions
6.1 Basic Operation
The thermostat features touch keys for navigation and setting adjustments. The main screen displays current temperature, set temperature, date, time, and connectivity status. Use the arrow keys to adjust settings and navigate menus.
Figure 6.1.1: Thermostat Display and App Interface
6.2 Programmable Modes
The thermostat supports weekly programming to optimize your heating schedule:
- Weekly Program Mode: Choose from 5+2 (weekdays + weekend, default), 6+1 (Monday-Saturday + Sunday), or 7-day programming. Each day can have up to 6 time slots with individual temperature settings.
- Holiday Mode: Set a consistent temperature for a specified duration during holidays.
Figure 6.2.1: Weekly Programmable Thermostat Settings
6.3 Advanced Features
- Adjustable Screen Brightness: You can adjust the screen brightness to suit your preference, ensuring readability without being too distracting, especially at night.
Figure 6.3.1: Adjustable Screen Brightness
- Window Opening Detection: This feature automatically interrupts heating if a significant drop in room temperature is detected, indicating an open window. Heating will resume once the ventilation period is over.
Figure 6.3.2: Window Opening Detection Feature
- Language Selection: The thermostat supports multiple languages including English, Deutsch, Nederlands, and Français. The screen also rotates automatically for optimal viewing.
Figure 6.3.3: Language Selection and Automatic Screen Rotation
- Device Sharing: Share control of your thermostat with other family members through the Smart Life or Tuya app, allowing multiple users to manage home heating.
Figure 6.3.4: Device Sharing Feature
6.4 Voice Control
The KTF0187 thermostat is compatible with Amazon Alexa and Google Home, allowing for convenient voice control of your heating system. Ensure your thermostat is linked to your Alexa or Google Home account via the Smart Life/Tuya app.
Figure 6.4.1: Compatible with Alexa and Google Assistant
7. Care and Maintenance
- Cleaning: Wipe the thermostat screen and body with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the device.
- Avoid Moisture: Keep the thermostat dry. Exposure to excessive moisture can cause damage.
- Temperature: Ensure the thermostat is not exposed to extreme temperatures outside its operating range (5~35°C).
8. Troubleshooting
- Thermostat not powering on: Check the power supply connections and ensure the circuit breaker is on. Verify correct wiring according to the diagram.
- Incorrect temperature reading: Ensure the NTC sensor is properly connected and positioned. Avoid placing the thermostat near heat sources or drafts that could affect readings.
- Cannot connect to Wi-Fi/App: Ensure your Wi-Fi network is 2.4GHz (5GHz is not supported). Check that the thermostat is in pairing mode and your phone is connected to the same Wi-Fi network during setup. Restart your router and thermostat if issues persist.
- Heating not turning on/off: Verify that the thermostat is in the correct operating mode (e.g., not in holiday mode or child lock). Check the set temperature against the current room temperature. For KTF0187A, ensure the load control wires are correctly connected.
- Screen unresponsive: Try restarting the thermostat by temporarily cutting power at the circuit breaker. If the issue persists, contact support.
9. User Tips
- Optimize Schedules: Take advantage of the 6 time slots in weekly programming to match your daily routine, saving energy when you're away or asleep.
- Utilize Window Opening Detection: Keep this feature enabled to prevent unnecessary heating when windows are open, contributing to energy efficiency.
- Voice Control Convenience: Integrate with Alexa or Google Home for hands-free temperature adjustments, especially useful when you're busy or in another room.
- Child Lock for Safety: Enable the child lock feature to prevent accidental changes to settings by children or curious guests.
10. Warranty and Support
This KETOTEK thermostat comes with a 12-month warranty from the date of purchase, covering manufacturing defects. If you encounter any issues with your device, please refer to the troubleshooting section or contact KETOTEK customer support for assistance.
For technical support or warranty claims, please refer to the contact information provided with your purchase documentation or visit the official KETOTEK website.
