1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your EZAIoT Smart WiFi Thermostat, model EZ-R7C.723-BK. This intelligent thermostat is designed to control boiler heating systems, offering advanced features such as remote control via the Smart Life application, voice control compatibility with Amazon Alexa and Google Assistant, and a high-quality IPS display with humidity and weather information.
Please read this manual thoroughly before installation and use to ensure proper function and safety.

Image 1.1: The EZAIoT Smart WiFi Thermostat displayed alongside its mobile application interface, demonstrating remote control capabilities and the thermostat's main screen showing temperature, humidity, and weather.
2. Package Contents
Verify that all items listed below are included in your product package:
- 1 x EZAIoT Smart WiFi Thermostat (Model: EZ-R7C.723-BK)
- 2 x Mounting Screws
- 1 x User Manual (available in multiple languages)
3. Specifications
| Feature | Detail |
|---|---|
| Brand | EZAIoT |
| Model Number | EZ-R7C.723-BK |
| Dimensions (L x W x H) | 8.6 x 8.6 x 4.4 cm |
| Weight | 180 grams |
| Power Input | 230 Volts AC |
| Power Consumption | 1.8 Watts |
| Connectivity | Wi-Fi |
| Display | High-definition IPS color screen |
| Control Method | Touch button, Programmable, Remote control, Digital |
| Special Features | Temperature and humidity display, Child lock, Power-loss memory, Frost protection, Multi-language support |

Image 3.1: Detailed diagram showing the dimensions of the EZAIoT Smart WiFi Thermostat in millimeters, including the mounting plate and screen.
4. Setup and Installation
4.1 Safety Information
Warning: Electrical installation should be performed by a qualified professional. Always turn off power at the main circuit breaker before beginning any wiring work to prevent electric shock.
4.2 Compatibility
This thermostat is designed for use with gas/combi boilers and water-based floor heating systems. It is not compatible with electric heating systems.

Image 4.1: Illustration demonstrating the thermostat's compatibility with gas/combi boilers and water-based floor heating, explicitly stating incompatibility with electric heating systems.
4.3 Physical Installation
- Turn off the main power supply to your heating system.
- Carefully remove your old thermostat, noting the existing wiring connections.
- Mount the new EZAIoT thermostat's backplate to the wall using the provided screws. Ensure it is level and securely fastened.

Image 4.2: Visual guide showing the installation of the thermostat into a wall box, including the backplate, wiring, and the use of a screwdriver for mounting.
4.4 Wiring Instructions
Connect the wires according to the diagram below. Ensure all connections are secure. Refer to your boiler's manual for specific wiring requirements if necessary.

Image 4.3: Detailed wiring diagram for the EZAIoT Smart WiFi Thermostat, illustrating connections for live wire, neutral wire, control boilers (passive switch), and electrothermal actuators (normally-open and normally-closed).
Caution: Do not connect live wires directly to the "PC1" and "PC2" terminals, as this will result in a short circuit. If you are unsure about compatibility or wiring, please contact a qualified electrician or EZAIoT support before proceeding.
4.5 Initial Power On and Wi-Fi Connection
- After wiring and mounting, restore power to your heating system. The thermostat display should light up.
- Download the "Smart Life" app from your mobile device's app store (iOS or Android).
- Register or log in to your Smart Life account.
- Follow the in-app instructions to add a new device. The thermostat will typically enter pairing mode automatically or can be manually set to pairing mode via its menu.
- Select your 2.4GHz Wi-Fi network and enter the password. The thermostat will connect to your home network.
5. Operating Instructions
5.1 Display Overview
The thermostat features a high-quality IPS screen that displays current room temperature, target temperature, humidity, time, day, Wi-Fi status, and local weather conditions. The 178° viewing angle ensures clear visibility from various positions.

Image 5.1: A close-up view of the thermostat's IPS display, clearly showing current temperature, humidity percentage, and various weather icons.
5.2 Basic Controls
The thermostat can be controlled via its touch buttons and rotary knob. Navigate through menus and adjust settings directly on the device.

Image 5.2: The thermostat's multifunction menu, showing icons for Wi-Fi settings, auto mode, cloud service, engineer mode, system settings, and back option.
5.3 Programming Modes
The thermostat offers flexible programming options to optimize energy usage and comfort:
- 5+2 Day Mode: Separate schedules for weekdays and weekends.
- 6+1 Day Mode: Separate schedules for six days and one rest day.
- 7-Day Mode: Individual daily programming.
Each day can be divided into up to six heating periods, allowing you to customize temperature settings to your daily routine.

Image 5.3: Screenshot of the Smart Life mobile application showing the programming interface for the thermostat, with options for weekday and weekend schedules and specific time slots for temperature settings.
5.4 Smart Life App Control
The "Smart Life" app provides comprehensive remote control and advanced settings for your thermostat:
- Adjust temperature from anywhere.
- Set and modify heating schedules.
- Monitor room temperature and humidity.
- Access advanced features like temperature calibration and frost protection settings.
5.5 Voice Control
Integrate your thermostat with Amazon Alexa or Google Assistant for convenient voice control. Once linked, you can use commands such as:
- "Alexa, set the thermostat to 22 degrees."
- "Hey Google, what is the temperature in the living room?"

Image 5.4: The thermostat mounted on a wall in a living room setting, with a transparent overlay showing a daily heating schedule, illustrating its integration into a smart home environment.
5.6 Multifunction Features
- Child Lock: Prevents unauthorized changes to settings.
- Power-Loss Memory: Retains settings in case of power interruption.
- Frost Protection: Automatically activates heating if the temperature drops below a set threshold to prevent freezing.
- Multi-language Support: Supports English, German, Italian, French, Spanish, Russian, and Chinese.

Image 5.5: The thermostat's display showing the language selection menu, with options for English, German, Italian, French, Spanish, Russian, and Chinese.
6. Maintenance
To ensure optimal performance and longevity of your thermostat:
- Clean the screen and casing regularly with a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Ensure the thermostat's vents are not obstructed to allow for accurate temperature readings.
- Periodically check for firmware updates through the Smart Life app to benefit from the latest features and improvements.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat not powering on | No power supply; incorrect wiring | Check main circuit breaker. Verify wiring connections according to Section 4.4. |
| Cannot connect to Wi-Fi | Incorrect Wi-Fi password; 5GHz network selected; thermostat too far from router | Ensure correct 2.4GHz Wi-Fi password. Move thermostat closer to router or use a Wi-Fi extender. Re-enter pairing mode. |
| Heating not turning on/off | Incorrect programming; wiring issue; boiler fault | Check programmed schedule. Verify wiring. Consult boiler manual or a heating technician. |
| Inaccurate temperature reading | Thermostat placed near heat source/draft; sensor calibration needed | Relocate thermostat if possible. Use the temperature calibration feature in the Smart Life app or thermostat settings. |
8. Warranty and Support
For warranty information, technical support, or if you require additional assistance, please refer to the contact details provided with your purchase documentation or visit the official EZAIoT website. Our support team is available to help with any questions or issues you may encounter.





