1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your AVATTO Smart Wi-Fi Programmable Thermostat for water floor heating. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Product Overview
The AVATTO Smart Wi-Fi Thermostat is designed to control water floor heating systems. It allows for precise temperature regulation, offering both manual and programmable modes. With Wi-Fi connectivity, you can manage your heating system remotely via a smartphone application and integrate it with voice control platforms like Amazon Alexa and Google Home.

Figure 2.1: AVATTO Smart Wi-Fi Thermostat with its accompanying mobile application interface.
3. Key Features
- Wi-Fi Connectivity: Control your water heating system remotely via the "Smart Life" or "Tuya Smart" app.
- Voice Control: Compatible with Amazon Alexa and Google Home for convenient voice commands.
- Programmable Modes: Supports manual mode and programmable schedules (5+2, 6+1, or 7-day options) with multiple temperature settings per day.
- Temperature Calibration: Adjust the displayed temperature to match the actual room temperature for accuracy.
- Adjustable Screen Brightness: Three levels of brightness for optimal visibility.
- NTC Temperature Sensors: Integrated sensors ensure precise internal temperature regulation for a comfortable heating environment.
- Clear Digital Display: Easy-to-read display for current temperature and settings.
4. Package Contents
Upon unpacking, please ensure all items are present and undamaged:
- AVATTO Smart Wi-Fi Thermostat
- Backplate
- User Manual (this document)
- Mounting Screws (may be included, check packaging)
5. Installation
Warning: Installation should be performed by a qualified electrician to prevent electric shock or damage to the device. Ensure the main power supply is turned off before beginning installation.
5.1 Mounting the Thermostat
- Turn off the main power supply to your heating system.
- Carefully separate the front panel of the thermostat from the backplate.
- Mount the backplate to a standard wall mounting box (suitable dimensions are shown in Figure 5.1). Ensure it is securely fastened.
- Proceed with wiring as described in Section 5.2.
- Once wiring is complete, carefully attach the front panel of the thermostat to the mounted backplate.

Figure 5.1: Thermostat dimensions and recommended wall mounting box. The thermostat measures 86mm x 86mm, with a depth of 26mm (13mm visible after installation). The backplate is 50mm x 50mm.
5.2 Wiring Diagram (3A Water Floor Heating)
Connect the thermostat according to the appropriate wiring diagram for your water floor heating system. The thermostat supports both Normally Closed (NC) and Normally Open (NO) actuators. Refer to the diagram below and ensure correct connections for Live (L) and Neutral (N) wires, as well as the actuator connections.

Figure 5.2: Wiring diagram for the 3A water floor heating thermostat. Top diagram shows connection for Normally Closed (NC) actuators (M30x1.5mm, AC230V NC, IP54). Bottom diagram shows connection for Normally Open (NO) actuators (M30x1.5mm, AC230V NO, IP54). The thermostat requires 100-240V AC power supply. Terminals L and N are for power input, and terminals 1-2 (NC) or 3-4 (NO) are for actuator control.
After wiring, restore power to the system. The thermostat display should illuminate.
6. App Setup and Wi-Fi Connection
6.1 Downloading the App
Download the "Smart Life" or "Tuya Smart" app from your smartphone's app store (available on iOS and Android). Register an account or log in if you already have one.

Figure 6.1: The thermostat supports remote control via the Smart Life or Tuya Smart app, connecting via 2.4 GHz Wi-Fi.
6.2 Connecting to Wi-Fi
- Ensure your thermostat is powered on.
- Open the "Smart Life" or "Tuya Smart" app.
- Follow the in-app instructions to add a new device. You may need to put the thermostat into pairing mode (refer to the thermostat's display for Wi-Fi icon blinking or specific button combinations, usually holding a button for a few seconds).
- Select your 2.4 GHz Wi-Fi network and enter the password. The thermostat does not support 5 GHz Wi-Fi networks.
- Once connected, the Wi-Fi icon on the thermostat display will become solid.
7. Operation
7.1 Manual Mode
In manual mode, you can directly set the desired temperature using the thermostat's physical buttons or through the app. The heating system will maintain this temperature until manually changed.
7.2 Programmable Mode
The thermostat offers flexible programming options to suit your schedule. You can set different temperatures for various times of the day across different days of the week. This mode helps optimize energy consumption and comfort.

Figure 7.1: Example of daily programming with 6 distinct time periods and corresponding temperature settings. The app allows easy configuration of these schedules.
The thermostat supports 5+2 (weekdays + weekend), 6+1 (weekdays + one weekend day), or 7-day programming. Each day can have up to 6 different temperature periods. Refer to the app for detailed programming instructions.
7.3 Voice Control Integration
Once connected to the "Smart Life" or "Tuya Smart" app, you can link your thermostat to Amazon Alexa or Google Home for voice control. Follow the instructions within the respective voice assistant apps to enable the "Smart Life" or "Tuya Smart" skill/service.

Figure 7.2: The thermostat integrates seamlessly with Amazon Alexa and Google Home for convenient voice commands, such as "Alexa, please set the thermostat to 23°F".
Common voice commands include:
- "Alexa, set [Thermostat Name] to [Temperature]."
- "Hey Google, what is the temperature of [Thermostat Name]?"
- "Alexa, turn on/off [Thermostat Name]."
8. Temperature Calibration
If you notice a discrepancy between the temperature displayed on the thermostat and the actual room temperature (measured by another accurate thermometer), you can calibrate the thermostat. This feature ensures the thermostat operates based on precise temperature readings.
To calibrate, access the settings menu on the thermostat or through the "Smart Life" / "Tuya Smart" app. Look for a "Temperature Calibration" or "Sensor Calibration" option and adjust the offset value as needed. A positive value increases the displayed temperature, while a negative value decreases it.
9. Maintenance
The AVATTO Smart Wi-Fi Thermostat requires minimal maintenance. Follow these guidelines to ensure its longevity and optimal performance:
- Cleaning: Wipe the thermostat's display and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the surface.
- Avoid Obstructions: Ensure that the thermostat's air vents (if any) are not blocked by furniture, curtains, or other objects, as this can affect temperature sensing accuracy.
- Software Updates: Periodically check the "Smart Life" or "Tuya Smart" app for firmware updates for your thermostat. Updates can improve performance and add new features.
10. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat not powering on. | No power supply; incorrect wiring. | Check the main power supply. Verify wiring connections according to Figure 5.2. Consult a qualified electrician if unsure. |
| Wi-Fi icon is blinking or not connected. | Incorrect Wi-Fi password; 5 GHz network selected; thermostat not in pairing mode; router too far. | Ensure correct 2.4 GHz Wi-Fi network and password. Put thermostat into pairing mode. Move router closer or use a Wi-Fi extender. |
| Temperature reading seems inaccurate. | Thermostat needs calibration; sensor obstructed. | Perform temperature calibration (Section 8). Ensure no obstructions are blocking the thermostat's sensors. |
| Heating system not responding to thermostat. | Incorrect wiring to actuator; actuator fault; thermostat fault. | Verify actuator wiring (Figure 5.2). Check if the actuator is functioning correctly. If issues persist, contact support. |
| Voice control not working. | Not linked to Alexa/Google Home; incorrect device name; internet connectivity issues. | Ensure the "Smart Life" or "Tuya Smart" skill is enabled and linked in your Alexa/Google Home app. Use the correct device name. Check internet connection. |
11. Technical Specifications
| Brand | AVATTO |
| Model Name | Thermostate |
| Controller Type | App Control, Amazon Alexa, Google Assistant |
| Special Feature | Remote control with Smart Life app, Alexa, Google Home |
| Color | Argento (Silver) |
| Dimensions | 10.6 x 9.7 x 6.9 cm (Package); Thermostat: 86mm x 86mm x 26mm (depth) |
| Weight | 240 grams |
| Power Supply | AC100V-240V |
| Current Rating | 3A (for water heating) |
| Protection Class | IP20 |
| Sensor Type | NTC |
12. Warranty and Support
For information regarding warranty and return policies, please refer to the purchase platform's specific guidelines. For products purchased on Amazon, you may consult their help pages for returns within 30 days if you change your mind, or for defective/damaged products. For specific information on Marketplace purchases, refer to the relevant help page.
For technical support or further assistance, please contact AVATTO customer service through the contact information provided with your product or on the official AVATTO website.





