KETOTEK WiFi Boiler Thermostat (Model KTF017802) User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your KETOTEK WiFi Boiler Thermostat, Model KTF017802. This intelligent thermostat is designed to offer efficient and convenient control over your boiler heating system, integrating seamlessly with smart home platforms like Alexa and Google Assistant via the Smart Life/Tuya App. Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Safety Information

Electrical Hazard: Installation must be performed by a qualified electrician or trained personnel. Always disconnect power at the circuit breaker before installing or servicing the thermostat.
Voltage: This thermostat operates on AC 90-240V 50/60Hz. Ensure your power supply matches these requirements.
Compatibility: This thermostat is designed for boiler systems and water-based underfloor heating systems that utilize dry contact (NO and COM) control. It is not compatible with electric underfloor heating systems or battery-powered thermostats.
Environment: Do not install in areas with excessive moisture, dust, or direct sunlight.

3. Package Contents

Please check the package for the following items:

1 x KETOTEK WiFi Boiler Thermostat
2 x Mounting Screws
1 x User Manual

4. Product Overview

The KETOTEK WiFi Boiler Thermostat features a clear digital display and intuitive touch controls. It allows for precise temperature management and smart connectivity.

KETOTEK WiFi Boiler Thermostat with Smart Life/Tuya App interface on a smartphone. — The image displays the KETOTEK WiFi Boiler Thermostat alongside a smartphone showing the Smart Life/Tuya application, illustrating remote control capabilities.

Dimensions of the KETOTEK WiFi Boiler Thermostat, showing front view (13cm x 9cm) and side/rear view (2.9cm depth, 8.7cm x 6.6cm mounting plate). — This image provides precise measurements of the thermostat, including its front face dimensions (13 cm width, 9 cm height) and its depth (2.9 cm), along with the mounting plate dimensions (8.7 cm by 6.6 cm).

4.1 Display and Controls

Detailed diagram of the KETOTEK thermostat display and buttons, with labels indicating each icon and control function. — This image provides a comprehensive guide to the thermostat's display, labeling all icons such as heating/cooling symbols, WiFi status, time, temperature, and mode indicators. It also labels the function of each physical button, including power, menu, confirm, decrease, and increase.

The display shows current temperature, set temperature, time, day of the week, and various mode indicators. Touch buttons allow for easy navigation and setting adjustments.

5. Installation

Important: Ensure power is disconnected before beginning installation.

5.1 Mounting Options

The thermostat can be mounted in the following ways:

Directly screwed to the wall.
Mounted in an 86x86 mm flush-mounted box.
Mounted in a Ø60 mm round flush-mounted box.
Mounted in a 503 type box.

This thermostat is not designed for recessed installation.

5.2 Wiring Requirements

The thermostat requires a phase (L) cable and a neutral (N) cable for power. It controls the boiler using dry contacts (Normally Open - NO and Common - COM). Confirm that your boiler supports dry contact control before proceeding.

Installation diagram for the KETOTEK WiFi Thermostat, showing wiring connections for phase (L) and neutral (N) power, and dry contacts (NO, COM) for boiler control. — This diagram illustrates the wiring process for the thermostat, detailing connections for the 220V AC power supply (Live and Neutral) and the dry contact terminals (Normally Open and Common) used to control a boiler. It also shows mounting options.

6. Wiring Diagrams

6.1 Boiler Connection

Detailed wiring diagram for connecting the KETOTEK thermostat to a boiler using dry contacts (NO, COM) and 220V power supply (N, L). — This technical diagram provides clear instructions for wiring the thermostat to a boiler system, showing the connections for the neutral (N) and live (L) 220V power input, and the normally open (NO) and common (COM) terminals for boiler control.

6.2 Actuator Connection (Optional)

Wiring diagrams for connecting the KETOTEK thermostat to NC (Normally Closed) and NO (Normally Open) actuators, showing 220V power and control connections. — This image presents two wiring diagrams: one for connecting the thermostat to a Normally Closed (NC) actuator and another for a Normally Open (NO) actuator, both illustrating the 220V power supply and the specific control connections.

7. Initial Setup

After successful installation and power-up, the thermostat will display the current time and temperature. You may need to set the correct time and date manually or through the app.

8. Smart Life/Tuya App Integration

To unlock the full potential of your KETOTEK thermostat, connect it to the Smart Life or Tuya App.

Download the Smart Life or Tuya App from your smartphone's app store.
Register or log in to your account.
Ensure your home WiFi network is 2.4GHz (5GHz networks are not supported).
Follow the in-app instructions to add your thermostat. This typically involves putting the thermostat into pairing mode (refer to the thermostat's display for pairing indicators) and confirming the WiFi network.

Once connected, you can monitor and adjust the room temperature, create schedules, and access various settings remotely from anywhere.

A hand holding a smartphone displaying the KETOTEK thermostat app, with the thermostat mounted on a wall in the background, demonstrating remote control. — This image depicts a user remotely controlling the thermostat via the mobile application on a smartphone, with the physical thermostat visible on a wall in a living room setting.

9. Operating Modes

The thermostat offers several operating modes to suit your needs:

Program Mode: Follows a pre-set weekly schedule.
Manual Mode: Maintains a constant temperature set by the user until changed.
Holiday Mode: Sets a specific temperature for a defined period, ideal for when you are away.

You can switch between these modes using the thermostat's buttons or through the Smart Life/Tuya App.

10. Weekly Programming

The Program Mode allows for flexible weekly scheduling to optimize energy consumption and comfort. You can choose from:

5-2 Day Schedule: Weekdays (Monday-Friday) and weekends (Saturday-Sunday) have separate programs.
6-1 Day Schedule: Monday-Saturday have one program, and Sunday has a different one.
7 Day Schedule: Each day of the week can be programmed individually.

Each day can have up to 6 time and temperature settings. Configure these settings via the Smart Life/Tuya App for ease of use.

Diagram showing weekly programming options (5+2, 6+1, 7 days) for the KETOTEK thermostat, with a graph illustrating temperature changes over time and a screenshot of the app's workday setting. — The image explains the flexible weekly programming capabilities of the thermostat, offering 5+2, 6+1, or 7-day schedules with up to 6 time and temperature periods per day. A graph visualizes temperature adjustments throughout the day, complemented by an app screenshot showing detailed workday settings.

11. Smart Features

11.1 Voice Control (Alexa/Google Assistant)

The thermostat is compatible with Amazon Alexa and Google Assistant. Link your Smart Life/Tuya account to your voice assistant app to control your heating with simple voice commands, such as "Alexa, set the thermostat to 22 degrees" or "Hey Google, turn off the heating."

11.2 Open Window Detection

This intelligent feature automatically pauses heating if a sudden drop in room temperature is detected, indicating an open window or door. This helps prevent energy waste. Heating resumes once the temperature stabilizes or after a set period.

Diagram illustrating key features of the KETOTEK WiFi Thermostat: APP control, voice control, program creation, heating/cooling mode, backlight adjustment, child lock, open window detection, and temperature calibration. — This graphic highlights the main functionalities of the thermostat, including control via mobile app, voice commands, customizable schedules, heating/cooling options, screen brightness settings, child safety lock, automatic open window detection, and temperature calibration.

11.3 Child Lock

Activate the child lock feature to prevent unauthorized changes to the thermostat settings directly from the device. This can be enabled or disabled via the app or by holding specific buttons on the thermostat.

11.4 Backlight Adjustment

Adjust the brightness of the thermostat's display backlight to suit your preference, especially useful in bedrooms or low-light environments. Options typically include medium, low, or off.

Three thermostat displays showing different backlight brightness levels: medium, low, and off, with a sleeping child in the background. — This image demonstrates the adjustable backlight feature of the thermostat, presenting options for medium brightness, low brightness, and no brightness, suitable for various environments like a bedroom at night.

11.5 Heating History Tracking

The Smart Life/Tuya App provides a history of your heating patterns, allowing you to view average temperatures by hour, day, or month. This data can help you understand and optimize your energy usage.

A smartphone displaying the KETOTEK app's heating history graph, showing temperature trends over time, with the thermostat mounted on a wall in the background. — The image illustrates the heating tracking function available in the thermostat's mobile app, displaying a graph of temperature history over a period, allowing users to monitor their heating patterns.

12. Specifications

Feature	Specification
Brand	KETOTEK
Model Number	KTF017802
Color	White
Product Dimensions	2.7 x 13 x 9 cm
Product Weight	210 g
Voltage	220 Volts (AC)
Power Supply	Wired Electric
Output	Max 5A
Temperature Range	5℃~35℃
Connectivity Technology	Bluetooth, WiFi (2.4GHz only)
Controller Type	Amazon Alexa, Android, Google Assistant, Manual Control, iOS
Special Features	Temperature Indicator, Holiday Mode, Programmable, Open Window Detection, Backlight Adjustment, Child Lock, Temperature Calibration, Reset Function, Memory Function
Specific Uses	Boiler
Temperature Control Type	Heating

13. Troubleshooting

Thermostat not powering on: Check the circuit breaker and ensure the L and N wires are correctly connected and receiving 220V AC power.
No heating: Verify that the boiler is powered on and functioning. Check the thermostat's mode (ensure it's not in Holiday mode or set to a very low temperature). Confirm the NO and COM dry contacts are correctly wired to the boiler.
WiFi connection issues: Ensure your router is broadcasting a 2.4GHz WiFi signal. Move the thermostat closer to the router if necessary. Restart the thermostat and attempt pairing again.
App not responding: Check your phone's internet connection. Ensure the Smart Life/Tuya App is updated to the latest version. Restart the app.
Inaccurate temperature reading: The thermostat has a temperature calibration function. Refer to the app or advanced settings on the device to adjust if needed.

14. Maintenance

To maintain your thermostat, simply wipe the screen and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the device. Ensure no liquids enter the thermostat's internal components.

15. Warranty and Support

For warranty information or technical support, please refer to the documentation provided with your purchase or contact KETOTEK customer service directly. Contact details can typically be found on the manufacturer's website or on the product packaging.

KETOTEK KTF017802