1. Introduction
Thank you for choosing the AVATTO WT100 Smart Boiler Heating Thermostat. This device is designed to provide intelligent control over your boiler heating system, enhancing comfort and energy efficiency in your home. The WT100 features WiFi connectivity, allowing remote control via the Tuya Smart app.
This manual provides essential information for the safe installation, operation, and maintenance of your thermostat. Please read it thoroughly before installation and keep it for future reference.
2. Safety Information
WARNING: Electrical installation should only be performed by a qualified electrician. Always disconnect power at the main circuit breaker before installing or servicing the thermostat to prevent electrical shock or damage to the product.
- Ensure the power supply is 240V AC, as specified for this model.
- Do not expose the thermostat to water or excessive humidity.
- Do not attempt to disassemble or repair the unit yourself. Contact qualified service personnel.
- Keep packaging materials away from children.
3. Setup and Installation
3.1 Package Contents
Verify that your package contains the following items:
- AVATTO WT100 Smart Thermostat Unit
- Mounting Screws (if applicable)
- User Manual (this document)
3.2 Wiring Diagram
Important: Before proceeding, turn off the main power supply to your heating system at the circuit breaker.
The WT100 thermostat is designed for boiler heating systems. Connect the thermostat according to the following general wiring scheme. Refer to your boiler's manual for specific terminal designations.
- L (Live): Connect to the live wire from your 240V AC power supply.
- N (Neutral): Connect to the neutral wire from your 240V AC power supply.
- Load (Output to Boiler): Connect to the control input of your boiler. This is typically a switched live connection that signals the boiler to turn on.
Note: A detailed wiring diagram is usually printed on the back of the thermostat or provided in a separate installation guide. If you are unsure, consult a qualified electrician.
3.3 Mounting the Thermostat
- Carefully detach the front panel of the thermostat from its backplate.
- Position the backplate on the wall at an appropriate height (typically 1.2-1.5 meters from the floor), avoiding direct sunlight, drafts, or heat sources.
- Mark the drilling points through the screw holes on the backplate.
- Drill holes and insert wall plugs if necessary.
- Secure the backplate to the wall using the provided screws.
- Connect the wires to the appropriate terminals on the backplate as per the wiring diagram.
- Carefully reattach the front panel of the thermostat to the secured backplate.
3.4 Initial Power-Up and WiFi Connection
- Once the thermostat is securely mounted and wired, restore power at the main circuit breaker.
- The thermostat display should illuminate.
- Download the "Tuya Smart" or "Smart Life" app from your smartphone's app store (iOS or Android).
- Register or log in to your account.
- In the app, tap "+" to add a new device.
- Follow the in-app instructions to put the thermostat into pairing mode (usually by pressing and holding a specific button on the thermostat until a WiFi icon flashes rapidly).
- Select your 2.4GHz WiFi network and enter the password.
- Once connected, the WiFi icon on the thermostat display will become solid.
4. Operating Instructions
4.1 Display Overview
The thermostat features a backlit display showing current temperature, set temperature, operating mode, and WiFi status.
- Current Temperature: Displays the ambient room temperature.
- Set Temperature: Displays the desired temperature.
- Mode Indicator: Shows current operating mode (e.g., Manual, Auto/Program).
- WiFi Icon: Indicates WiFi connection status (flashing for pairing, solid for connected).
- Heating Icon: Appears when the boiler is actively heating.
4.2 Basic Controls
- Power Button: Press to turn the thermostat On/Off.
- Up/Down Arrows: Adjust the set temperature in Manual mode or navigate menu options.
- Mode Button: Switch between Manual mode and Automatic (Program) mode.
- Confirm/Menu Button: Enter menu settings or confirm selections.
4.3 Operating Modes
The WT100 thermostat supports two primary operating modes:
- Manual Mode: The thermostat maintains a constant set temperature until manually changed. Use the Up/Down arrows to adjust the set temperature.
- Automatic (Program) Mode: The thermostat follows a pre-set weekly schedule. You can program different temperatures for various times of the day and days of the week via the Tuya Smart app or directly on the thermostat (refer to advanced settings).
4.4 Using the Tuya Smart App
The Tuya Smart app provides comprehensive control and scheduling features:
- Remote Control: Adjust temperature, change modes, and turn the thermostat on/off from anywhere.
- Scheduling: Create and modify detailed weekly heating schedules.
- Scene Automation: Integrate with other smart home devices and create automated routines.
- Energy Monitoring: View heating history and energy usage (if supported by the app/thermostat model).
5. Maintenance
The AVATTO WT100 thermostat requires minimal maintenance to ensure optimal performance.
- Cleaning: Wipe the thermostat's exterior with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the display or casing.
- Avoid Obstructions: Ensure that the thermostat's vents (if any) are not blocked by furniture, curtains, or other objects, as this can affect temperature readings.
- Battery Replacement: This model is typically hardwired and does not use user-replaceable batteries for primary operation. If a backup battery is present for settings retention, it is usually a long-life coin cell battery that does not require frequent replacement.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat display is blank. | No power supply. | Check the main circuit breaker. Ensure wiring is correct and secure. |
| Thermostat not connecting to WiFi. | Incorrect WiFi password, 5GHz network, or thermostat not in pairing mode. | Ensure correct 2.4GHz WiFi network and password. Put thermostat into pairing mode (flashing WiFi icon). Move closer to router. |
| Boiler not heating when thermostat calls for heat. | Incorrect wiring, boiler issue, or thermostat in wrong mode. | Verify wiring connections. Check boiler's power supply and error codes. Ensure thermostat is in Manual or Program mode and set temperature is above ambient. |
| Inaccurate temperature reading. | Thermostat exposed to direct sunlight, drafts, or heat sources. | Relocate thermostat if possible, or ensure no obstructions are affecting its sensor. |
If the problem persists after attempting these solutions, please contact AVATTO customer support.
7. Specifications
| Model: | WT100-BH-3A |
| Power Supply: | 240V AC |
| Current Load: | 3A (for boiler heating) |
| Display: | Backlit LCD |
| WiFi Standard: | 2.4GHz (IEEE 802.11 b/g/n) |
| Temperature Sensor: | Internal |
| Temperature Accuracy: | ±0.5°C |
| Set-point Range: | 5°C - 35°C |
| Operating Environment: | 0°C - 45°C, 5% - 95% RH (non-condensing) |
8. Warranty and Support
8.1 Limited Warranty
AVATTO warrants this product against defects in materials and workmanship for a period of one (1) year from the date of original purchase. This warranty does not cover damage caused by accident, misuse, abuse, improper installation, or unauthorized repair. Proof of purchase is required for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact AVATTO customer support through the retailer where the product was purchased or visit the official AVATTO website for contact information.
Please have your model number (WT100-BH-3A) and purchase date available when contacting support.