AVATTO WT100 Smart Thermostat User Manual

1. Introduction

Welcome to the user guide for your AVATTO WT100 Smart Thermostat. This device is designed to provide intelligent and efficient temperature control for various heating systems, including electric floor heating, water boilers, and gas boilers. With its WiFi/ZigBee connectivity, you can manage your home's climate from anywhere using the mobile app or integrate it with popular voice assistants like Amazon Alexa, Google Home, and Yandex Alice.

This manual provides essential information for the safe installation, setup, and operation of your thermostat. Please read it thoroughly before installation and keep it for future reference.

2. Safety Information

• Always disconnect power at the circuit breaker before installing or servicing the thermostat.
• Installation should be performed by a qualified electrician to ensure safety and compliance with local electrical codes.
• Do not immerse the thermostat in water or other liquids.
• Do not attempt to repair or modify the thermostat yourself. Refer all servicing to qualified personnel.
• Ensure the power supply voltage matches the thermostat's specifications (110-240V).

3. Package Contents

Upon unpacking, please verify that all items are present and in good condition:

• AVATTO WT100 Smart Thermostat Unit
• User Manual (This document and a more detailed PDF version available online)
• Mounting Screws (typically included)

4. Specifications

Figure 1: Product Dimensions (86mm x 86mm front, 27mm depth, 13mm visible thickness)

5. Installation

5.1. Wiring Diagram (3A Water/Gas Boiler Model)

Ensure power is OFF before proceeding with wiring. This diagram is for the 3A Water/Gas Boiler model. Please consult a qualified electrician for installation.

Figure 2: Wiring for 3A Water/Gas Boiler Thermostat. Terminals 1 and 2 are for Live (L) and Neutral (N) power input. Terminals 3 and 4 are for Dry Contact (NO/NC) to the boiler. Terminal 5 is not used in this configuration.

• L (Live Wire): Connect to the live wire of your 110-240V AC power supply.
• N (Neutral Wire): Connect to the neutral wire of your 110-240V AC power supply.
• Dry Contact (NO/NC): Connect these terminals to the control input of your water or gas boiler. This thermostat provides a potential-free contact closure.
• For 16A Electric Heating models, the wiring will differ, typically involving direct connection to the heating element. Refer to the specific manual for 16A models.

5.2. Mounting

After wiring, carefully mount the thermostat onto the wall box using the provided screws. Ensure it is securely fastened and the wires are not pinched.

6. Initial Setup and App Connection

6.1. Download the App

The AVATTO WT100 thermostat works with the Tuya Smart or Smart Life app. Download the app from your smartphone's app store (Google Play Store for Android or Apple App Store for iOS).

Alternatively, you can scan the QR code provided in the full PDF manual for direct download links.

6.2. Register and Log In

Open the Tuya Smart or Smart Life app. If you are a new user, register for an account. If you already have an account, log in.

6.3. Connect the Thermostat to Wi-Fi/ZigBee

Follow the in-app instructions to add your device. The process typically involves:

1. Power on the thermostat.
2. Put the thermostat into pairing mode (usually by pressing and holding a button, like the 'M' button, until a Wi-Fi or ZigBee icon flashes rapidly).
3. In the app, tap '+' to add a device, then select 'Thermostat' or 'Heater'.
4. Follow the prompts to connect to your home Wi-Fi network (for Wi-Fi models) or to your ZigBee hub (for ZigBee models).

Figure 3: APP Remote Control interface on a smartphone.

Note for ZigBee models: A compatible ZigBee hub (e.g., Tuya ZigBee Gateway) is required for ZigBee thermostats. You can use an AVATTO hub or a compatible hub from another brand.

7. Operation

7.1. Panel Controls and Display Icons

The thermostat features a touch panel with several buttons and a clear display. Key icons and buttons include:

• M (Mode Button): Cycles through different operating modes (e.g., Manual, Auto/Program).
• Power Button: Turns the thermostat ON/OFF.
• Up/Down Arrows: Adjusts temperature settings or navigates menu options.
• Room Temp: Displays the current ambient room temperature.
• Set Temp: Displays the target temperature.
• WiFi Icon: Indicates Wi-Fi connection status.
• Lock Icon: Indicates child lock is active.
• Heating Icon: Indicates the heating system is active.
• Week Icon: Displays the current day of the week.
• Time Display: Shows the current time.

7.2. APP Remote Control

Once connected to the app, you can remotely control your thermostat from anywhere:

• Adjust temperature settings.
• Change operating modes.
• Set weekly schedules.
• Monitor room temperature.
• Access advanced settings.

7.3. Voice Control

Integrate your thermostat with Amazon Alexa, Google Home, or Yandex Alice for convenient voice commands. After linking your Tuya/Smart Life account in the respective voice assistant app, you can use commands such as:

• "Alexa, set the living room thermostat to 22 degrees."
• "Hey Google, what's the temperature in the bedroom?"
• "Yandex Alice, turn on the heating."

Figure 4: Voice Control integration with smart assistants.

7.4. Time Programming (Weekly Schedule)

The thermostat supports weekly programming to automatically adjust temperatures based on your schedule. This can be configured via the thermostat's panel or more easily through the mobile app.

Typically, you can set different temperature points for weekdays (e.g., 5+2 days) or individual days (e.g., 7 days) for various time periods (e.g., Wake, Leave, Return, Sleep).

7.5. Backlight Brightness Adjustment

The display backlight brightness can be adjusted or turned off completely to avoid disturbing sleep. This setting is usually found within the app's device settings.

Figure 5: Backlight Brightness Adjustment via the app.

7.6. Group Control Function

For homes with multiple AVATTO thermostats, the app allows you to create groups. This enables simultaneous control of several thermostats in different rooms or zones, simplifying management of your entire heating system.

Figure 6: Group Control Function for managing multiple thermostats.

8. Maintenance

• Cleaning: Wipe the thermostat's screen and body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Firmware Updates: Periodically check the Tuya Smart/Smart Life app for available firmware updates to ensure optimal performance and access to new features.
• The WT100 is a wired thermostat and does not require battery replacement.

9. Troubleshooting

• Thermostat not powering on: Check the circuit breaker and ensure all wiring connections (Live and Neutral) are secure.
• Wi-Fi disconnection: If the thermostat frequently disconnects from Wi-Fi, ensure your router is within range and providing a stable signal. Try restarting your router and the thermostat. Re-pairing the device with the app might be necessary.
• Device flashes white/unresponsive: This could indicate a power issue or a software glitch. Try cycling the power to the thermostat at the circuit breaker. If the issue persists, contact support.
• Heating not turning on/off: Verify the wiring to your boiler/heating system. Ensure the thermostat is in the correct operating mode and the set temperature is appropriate. Check if the heating icon is displayed on the thermostat.
• Inaccurate temperature readings: Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources that could affect its internal sensor. The app may offer a temperature calibration option.

10. User Tips

• Aesthetic Customization: While the front panel is sleek, some users have noted the rear plastic casing's color. If visible, consider minor aesthetic adjustments if desired, though it's typically hidden.
• Temperature Hysteresis: For more precise temperature control, check the advanced settings in the app for options to adjust temperature hysteresis (the difference between the set temperature and when the heating turns on/off). Some models allow adjustment from 0.5°C down to 0.1°C or 0.2°C.

11. Frequently Asked Questions (FAQ)

• Q: What color is the backlight?
  A: The backlight color can vary by model or firmware version, but commonly features a blue or white display. Refer to your specific unit's display.
• Q: Does it support open window detection?
  A: This feature is model-specific and may be available through firmware updates or certain variants. Check the app's advanced settings or the full PDF manual for details.
• Q: Is the WT100 series all Wi-Fi?
  A: The WT100 series includes both Wi-Fi and ZigBee variants. Ensure you have the correct model for your intended connectivity.
• Q: What is the difference between a 16A and a 16A with ZigBee model?
  A: A 16A model is typically for electric heating systems, handling higher current loads. A '16A with ZigBee' model indicates it's for electric heating and uses ZigBee for smart connectivity, requiring a ZigBee hub.
• Q: Which ZigBee hub should I use? Can I use a different brand?
  A: You can use an AVATTO ZigBee hub or any compatible Tuya ZigBee Gateway from another brand.
• Q: Is it compatible with Home Assistant?
  A: Many Tuya-based devices can be integrated with Home Assistant through various community integrations (e.g., Tuya Local, official Tuya integration). Functionality may vary.
• Q: Does it fit a gas furnace? Is it potential-free?
  A: The 3A Water/Gas Boiler model is designed for gas furnaces and provides a potential-free (dry contact) output, which is suitable for most boiler control inputs. Refer to the wiring diagram in Section 5.1.

12. Warranty and Support

AVATTO products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the official AVATTO website or contact your retailer.

A comprehensive PDF version of this user manual, including detailed diagrams and advanced settings, is available for download. You can access it via this link: View User Manual (PDF).