Introduction
Thank you for choosing the RKHK i8 Smart WiFi Thermostat. This device is designed to provide intelligent and efficient control over your home heating system, offering convenience through app control, voice commands, and flexible programming. Please read this manual carefully before installation and operation to ensure proper use and to maximize the benefits of your new thermostat.
Important Safety Information
WARNING: Electrical installation should only be performed by a qualified electrician. Disconnect power at the circuit breaker before installing or servicing the thermostat to prevent electrical shock or damage to the product.
- Ensure the power supply is off before any wiring.
- Do not expose the device to water or extreme temperatures.
- Keep out of reach of children.
- Use only as directed in this manual.
Product Overview
The RKHK i8 Smart WiFi Thermostat offers advanced features for precise temperature control and energy saving. Key features include:
- WiFi Connectivity: Remote control via smartphone app.
- Voice Control: Compatible with Amazon Alexa and Google Home.
- Flexible Programming: Weekly schedules (5+2, 6+1, or 7 days) with multiple time modes.
- Dual Sensor Technology: Accurate temperature measurement with internal and external sensors.
- Eye-Friendly Display: Dimmable 4-level screen with automatic night mode.
- Child Lock Function: Prevents accidental operation.
- Power-off Memory: Retains settings and clock function during power outages.
Image: The RKHK i8 Smart WiFi Thermostat featuring its elegant design and easy-to-operate touch screen buttons.
Setup and Installation
1. Electrical Installation
The RKHK i8 Thermostat is compatible with various heating systems, including underfloor heating, water valves, and hot water systems. Refer to the wiring diagram provided with your product packaging for specific connections. It is highly recommended to have a qualified electrician perform the electrical installation to ensure safety and proper functionality.
- Ensure the main power supply to your heating system is turned off.
- Connect the thermostat wires according to the provided diagram.
- Mount the thermostat securely to the wall.
- Restore power after installation is complete.
2. App Download and WiFi Connection
To control your thermostat remotely, download the compatible smart home app (e.g., Smart Life app) on your smartphone. The app is available for both Android and iOS devices.
- Scan the QR code in the product packaging or search for "Smart Life" in your app store.
- Register or log in to your account.
- Add a new device in the app. Select "Thermostat" or "Heating Device".
- Follow the on-screen instructions to connect the thermostat to your 2.4 GHz Wi-Fi network. The thermostat's Wi-Fi indicator will blink during pairing.
- Confirm successful pairing in the app.
Image: The RKHK i8 Thermostat being controlled via a smartphone app, demonstrating remote operation and the pairing process.
3. Voice Assistant Integration (Alexa/Google Home)
The RKHK i8 Thermostat supports voice control through Amazon Alexa and Google Home for convenient hands-free operation.
- Ensure your thermostat is successfully connected to the Smart Life app.
- Open your Amazon Alexa or Google Home app.
- Navigate to the "Skills" or "Works with Google" section.
- Search for and enable the "Smart Life" skill/service.
- Link your Smart Life account with your voice assistant account.
- Discover devices. Your RKHK i8 Thermostat should appear.
- You can now use voice commands such as: "Alexa, set thermostat to 22 degrees" or "Hey Google, turn on the heating."
Image: The RKHK i8 Thermostat displaying compatibility with voice control platforms like Amazon Alexa and Google Home, shown next to a smart speaker.
Operating Instructions
1. Manual Temperature Adjustment
You can manually adjust the target temperature directly on the thermostat or through the app.
- On the thermostat: Use the Up and Down arrow buttons to increase or decrease the desired temperature.
- Via app: Open the Smart Life app, select your thermostat, and adjust the temperature using the controls provided.
Image: The RKHK i8 Thermostat displaying its interface, indicating support for both manual and automatic programming modes.
2. Weekly Programmable Modes
The thermostat supports flexible weekly programming to optimize energy consumption and comfort based on your schedule. You can choose between 5+2 (weekdays + weekend), 6+1 (weekdays + one weekend day), or 7-day programming, each with up to 6 time periods per day.
- Access the programming settings via the Smart Life app.
- Select your preferred programming mode (5+2, 6+1, or 7 days).
- Set the desired temperature and time for each period (e.g., morning, day, evening, night).
- Save your settings. The thermostat will automatically follow this schedule.
Image: The RKHK i8 Thermostat illustrating its weekly programmable feature, allowing for customized heating schedules.
3. Child Lock Function
To prevent accidental changes to settings, especially by children, activate the child lock function.
- On the thermostat: Press and hold the M button for 3-5 seconds until a lock icon appears on the display.
- Via app: Look for the child lock option in the thermostat settings within the Smart Life app and toggle it on/off.
- To unlock: Repeat the process (press and hold M button or toggle off in app).
Image: The RKHK i8 Thermostat demonstrating its child lock function, preventing unintended adjustments, with a child in the background.
4. Backlight Brightness Adjustment and Night Mode
The thermostat's display backlight can be adjusted to suit your preference and includes an automatic night mode to minimize disturbance during sleep.
- Adjust brightness: Access backlight settings in the Smart Life app to choose from 4 dimmable levels.
- Night mode: The automatic night mode will reduce backlight intensity during specified hours, ensuring a comfortable sleeping environment.
Image: The RKHK i8 Thermostat illustrating its adjustable backlight brightness feature, including an option to turn it off for undisturbed sleep.
5. Power-off Memory Function
The RKHK i8 Thermostat is equipped with a power-off memory function, ensuring that your settings and the clock remain intact even after a power outage.
- No data loss: All programmed schedules and temperature settings are saved.
- Clock function: The internal clock continues to operate, maintaining accurate time.
Image: The RKHK i8 Thermostat demonstrating its power-off memory function, retaining settings and clock display even after power interruptions.
Maintenance
The RKHK i8 Smart WiFi Thermostat requires minimal maintenance to ensure optimal performance.
- Cleaning: Gently wipe the display and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the device.
- Avoid Obstructions: Ensure that the thermostat's sensors are not covered or obstructed by furniture, curtains, or other objects, as this can affect temperature readings.
- Software Updates: Periodically check the Smart Life app for any available firmware updates for your thermostat to ensure you have the latest features and improvements.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat not turning on. | No power supply. | Check the circuit breaker and ensure wiring is correct. Consult an electrician if unsure. |
| Cannot connect to Wi-Fi. | Incorrect Wi-Fi password; 5GHz network; weak signal. | Ensure you are using a 2.4 GHz Wi-Fi network. Double-check the password. Move the thermostat closer to the router or use a Wi-Fi extender. |
| App not controlling thermostat. | Thermostat offline; app not updated; network issues. | Check thermostat's Wi-Fi indicator. Ensure your phone has internet access. Update the Smart Life app. Re-pair the device if necessary. |
| Voice control not working. | Skill not enabled; account not linked; incorrect commands. | Verify the Smart Life skill is enabled and linked in your Alexa/Google Home app. Use precise commands. |
| Temperature reading seems inaccurate. | Sensor obstruction; thermostat placed near heat source/draft. | Ensure nothing is blocking the thermostat's sensors. Relocate the thermostat if it's near a window, door, or direct heat source. |
Specifications
| Feature | Detail |
|---|---|
| Brand | RKHK |
| Model Name | i8 |
| Color | White |
| Product Dimensions | 86P x 40l x 86H mm (8.6 x 4 x 8.6 cm) |
| Item Weight | 160 grams |
| Voltage | 100-240 V, 50/60 Hz |
| Switching Power | 3 A |
| Material | Plastic |
| Special Features | Voice Control, Adjustable Backlight Brightness, Programmable, Child Safety Lock, Antifreeze, App Remote Control |
| Controller Type | Amazon Alexa, Google Home |
| Temperature Accuracy | ±0.5 °C |
| Temperature Range | 5 to 35 °C |
Warranty and Support
RKHK products are manufactured to the highest quality standards. For warranty information, please refer to the documentation included with your purchase or contact your retailer. If you encounter any issues or have questions regarding your RKHK i8 Smart WiFi Thermostat, please contact our customer support team.
- Customer Support: Refer to your product packaging or the RKHK official website for contact details.
- Online Resources: Visit the RKHK website for FAQs, additional guides, and software updates.