EZAIoT Wifi Thermostat EZ-R8C.716 User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your EZAIoT Wifi Thermostat, model EZ-R8C.716. This device is designed for electric underfloor heating systems, offering advanced control and smart home integration. Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Product Features

The EZAIoT Wifi Thermostat EZ-R8C.716 offers a range of features to enhance your heating control experience:

• Wi-Fi Connectivity: Remote control via the Tuya Smart Life APP.
• Voice Control: Compatible with Alexa and Google Assistant for convenient hands-free operation.
• Advanced Display: Super clear IPS screen with a colorful display and over 178° viewing angle.
• Intuitive Controls: Sensitive capacitive touch buttons and an automotive-grade knob button for easy adjustments.
• Environmental Monitoring: Built-in high-sensitivity temperature and humidity sensor, capable of displaying 38 weather conditions.
• Weekly Programming: Supports 3 weekly modes (5+2, 6+1, 7 days) with up to 6 heating periods per day for energy efficiency.
• Multi-language Support: 7 supported languages including English, German, Italian, French, Spanish, Russian, and Chinese.
• Power-loss Memory: Retains settings in case of power interruption.
• Frost Protection: Helps prevent pipes from freezing.
• Key Lock: Prevents unintended changes to settings.

Image: Overview of the thermostat's multifunction capabilities, including room humidity, target temperature, app control, frost protection, date & time, local weather, outdoor humidity, room heating, key control, key lock, power-loss memory, and Wi-Fi.

3. Package Contents

Verify that all items are present in the package:

• 1 x EZAIoT Wifi Thermostat
• 2 x Mounting Screws
• 1 x NTC 10K External Sensor (3m cable)
• 1 x User Manual (in 5 languages)

Image: Illustration of the EZAIoT thermostat, external sensor, screws, and manual, alongside a wiring diagram for electric floor heating systems.

4. Installation and Setup

4.1 Safety Precautions

WARNING: Installation must be performed by a qualified electrician in accordance with local electrical codes. Disconnect power at the circuit breaker before beginning installation to prevent electrical shock.

• Ensure the power supply is turned off before wiring.
• Do not install in locations with excessive vibration or direct sunlight.
• This thermostat is designed for AC 100~240V, 50~60Hz electric underfloor heating systems with a maximum load current of 16A. Verify compatibility with your system.

4.2 Mounting the Thermostat

The thermostat is designed for wall mounting, typically fitting into a standard electrical box (e.g., 502 type). Refer to the dimensions below to ensure proper fit and installation.

Image: Detailed diagram showing the dimensions of the EZAIoT thermostat in millimeters, including front, side, and rear views with mounting points.

4.3 Wiring Instructions

Connect the thermostat according to the wiring diagram provided. Ensure all connections are secure and correctly matched to avoid damage or malfunction. The external NTC 10K sensor should be placed in the floor for accurate floor temperature measurement.

• L: Live wire input
• N: Neutral wire input
• COM: Common terminal for heating output
• LOUT: Live output to heating element
• NTC1, NTC2: External NTC 10K sensor connections

Refer to the wiring diagram in Section 3 for visual guidance.

5. Operation

5.1 User Interface Overview

The thermostat features a clear IPS display and a combination of touch and knob controls. The main screen displays current room temperature, humidity, time, date, Wi-Fi status, and operating mode.

Image: Front view of the EZAIoT thermostat display showing current temperature, humidity, time, and control buttons (next, enter, home, back) and the rotary knob. A smartphone screen shows the accompanying mobile application interface.

• Knob Button: Rotate to adjust temperature, press to confirm selections.
• Touch Buttons: Navigate menus (Next, Enter, Home, Back) and control specific functions.

5.2 Wi-Fi and App Control (Tuya Smart Life)

To enable remote control and smart features, connect your thermostat to your home Wi-Fi network using the Tuya Smart Life application.

1. Download the "Tuya Smart" or "Smart Life" app from your smartphone's app store.
2. Register or log in to your account.
3. Follow the in-app instructions to add a new device. Select "Thermostat" or "Heater" from the device list.
4. Put the thermostat into pairing mode (refer to the thermostat's on-screen menu for Wi-Fi settings).
5. Enter your Wi-Fi network credentials in the app.
6. Once connected, you can control the thermostat, set schedules, and monitor conditions remotely.

5.3 Voice Control (Alexa & Google Assistant)

After successfully connecting your thermostat to the Tuya Smart Life app, you can link it with Amazon Alexa or Google Assistant for voice commands.

1. Open the Alexa or Google Home app.
2. Enable the "Tuya Smart" or "Smart Life" skill/service.
3. Link your Tuya account.
4. Discover devices. Your thermostat should appear.
5. You can now use voice commands such as:
   • "Alexa, set [Thermostat Name] to 22 degrees."
   • "Hey Google, what's the temperature in [Thermostat Name]?"

5.4 Weekly Programming

The thermostat allows for flexible weekly programming to optimize comfort and energy savings. You can choose from three modes: 5+2 days (weekday/weekend), 6+1 days (6 working days/1 rest day), or 7 days (every day individually). Each day can have up to 6 heating periods with custom temperature settings.

Image: Example of a weekly programming schedule displayed on a smartphone app, showing different temperature settings for various events (Wake up, Leave, Return, Sleep) throughout weekdays and weekends.

Access the programming settings through the thermostat's menu or the Tuya Smart Life app to customize your heating schedule.

6. Maintenance

The EZAIoT Wifi Thermostat requires minimal maintenance. Follow these guidelines to ensure longevity and optimal performance:

• Cleaning: Wipe the screen and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the device.
• Avoid Obstructions: Ensure the thermostat's sensors are not blocked by furniture, curtains, or other objects that could affect temperature readings.
• Software Updates: Keep the Tuya Smart Life app updated to the latest version for new features and performance improvements.

7. Troubleshooting

If you encounter issues with your EZAIoT Wifi Thermostat, refer to the following common troubleshooting steps:

• No Power/Display Off: Check the circuit breaker. Ensure all wiring connections are secure as per the installation instructions.
• Thermostat Not Heating: Verify the operating mode is set to heating. Check the set temperature is above the current room temperature. Ensure the heating system itself is operational. Check wiring connections.
• Wi-Fi Connection Issues: Ensure your Wi-Fi network is 2.4GHz (5GHz networks are generally not supported by smart home devices). Check your Wi-Fi password. Move the thermostat closer to the router if signal is weak. Try restarting your router and the thermostat.
• Inaccurate Temperature Reading: Ensure the thermostat's internal sensor or external floor sensor is not obstructed or exposed to drafts/direct sunlight.
• App Control Not Working: Ensure your smartphone has an active internet connection. Verify the Tuya Smart Life app is updated and your account is logged in. Check if the thermostat is still connected to Wi-Fi.
• Voice Control Not Responding: Confirm the Tuya Smart Life skill/service is enabled and linked in your Alexa or Google Home app. Ensure the thermostat is named clearly and consistently.

If problems persist, consult the detailed manual provided with the product or contact customer support.

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your product or contact EZAIoT customer service through their official website. Keep your purchase receipt as proof of purchase.