Giới thiệu
This manual provides detailed instructions for the installation, operation, and maintenance of your Decdeal WiFi Thermostat for Gas Boilers. Please read this manual thoroughly before installation and use to ensure proper function and safety. This thermostat features a large LCD touchscreen, app control, voice control compatibility with Alexa and Google Home, and programmable scheduling for optimal comfort and energy efficiency.
Sản phẩm trênview

Đằng trước view of the Decdeal WiFi Thermostat, showcasing its sleek design and large LCD display.
The Decdeal WiFi Thermostat (Model GC) is designed for gas boiler systems. It offers advanced features for managing your home's heating, including:
- Chế độ lập trình: 5+1+1 weekly programming for customized heating schedules.
- APP kiểm soát: Remote control via the "My Smart Life" app (or Tuya Smart app) from your mobile device.
- Điều khiển bằng giọng nói: Compatible with Amazon Alexa, Google Home, and Tmall Genie.
- Modern LCD Screen: 4.8-inch backlit color LCD touchscreen for easy readability and operation.
- Multifunctional Assistant: Integrated humidity sensor display, time, and UV index.
- Khóa trẻ em: Option to fully or partially lock the touchscreen to prevent accidental changes.
Cài đặt
1. Physical Installation and Wiring
Quan trọng: Installation should be performed by a qualified electrician. Ensure power is turned off at the main circuit breaker before beginning any wiring.

Wiring diagram for the GC model thermostat, showing connections for gas/water boiler, power supply, and optional sensor.
The GC model is specifically for water/gas boiler systems. Refer to the diagram above for correct wiring connections:
- Clean Contacts (Boiler): Kết nối với các thiết bị đầu cuối số 1 và 2.
- Neutral Line (N): Connect to terminal 3.
- Dây điện trực tiếp (L): Connect to terminal 4.
- Cảm biến nhiệt độ (Tùy chọn): Kết nối với các thiết bị đầu cuối số 5 và 6.
The thermostat is suitable for standard wall switch boxes (86mm, European 60mm round, or 503 installation boxes).

Detailed dimensions and mounting plate for the thermostat, indicating compatibility with various wall boxes.
2. Cài đặt ứng dụng và kết nối Wi-Fi
The thermostat connects to your home Wi-Fi network (2.4 GHz only) for remote control via a smartphone app. Download the "My Smart Life" app (or Tuya Smart app) from your mobile app store.
- Ensure your mobile device is connected to a 2.4 GHz Wi-Fi network. The thermostat does not support 5 GHz networks.
- Turn off the thermostat screen by pressing the power button.
- Press and hold the "Up" arrow button (usually the rightmost arrow) for approximately 8 seconds until the Wi-Fi icon on the thermostat screen starts blinking rapidly. This indicates pairing mode.
- Open the "My Smart Life" app on your smartphone.
- Select "Add Device" or the "+" icon to add a new device.
- Choose the corresponding thermostat type from the list of devices (e.g., "Thermostat (Wi-Fi)").
- Follow the on-screen instructions in the app to complete the connection. You may need to confirm the Wi-Fi network and enter its password.
Video demonstrating the Wi-Fi connection process and basic app operation for the thermostat.
For a detailed multilingual manual, including Italian, scan the QR code below:
Hướng dẫn sử dụng
1. Màn hình LCDview

Chi tiết view of the thermostat's LCD display, highlighting various indicators and touch buttons.
The LCD display provides real-time information and allows interaction via touch buttons. Key elements include:
- (1) Heating On: Cho biết khi nào hệ thống sưởi đang hoạt động.
- (2) Periods: Shows the current programming period.
- (3) Monday to Sunday: Chỉ báo ngày trong tuần.
- (4) External Sensor: Indicates if an external sensor is connected.
- (5) Down Button: Decreases temperature or navigates menus.
- (6) Up Button: Increases temperature or navigates menus.
- (7) Clock: Hiển thị thời gian hiện tại.
- (8) Advanced Options: Accesses advanced settings.
- (9) Mode: Switches between operating modes (Manual, Program, Economy).
- (10) Quyền lực: Bật/tắt bộ điều nhiệt.
- (11) Time: Hiển thị thời gian hiện tại.
- (12) Set Temp: Cài đặt nhiệt độ mong muốn.
- (13) Menu: Truy cập các tùy chọn trong menu.
- (14) Room Temp: Nhiệt độ phòng hiện tại.
- (15) Lock: Indicates if the screen is locked.

Close-up of the LCD display and responsive touch keys for easy interaction.
2. Chế độ hoạt động
The thermostat offers several operating modes to suit your needs:
- Chế độ thủ công: In this mode, you can manually set the heating temperature according to your immediate needs. The thermostat will maintain this set temperature until changed.
- Programmable Mode (5+1+1): This mode allows you to set a weekly heating schedule with different temperature settings for weekdays (5 days), Saturday (1 day), and Sunday (1 day). You can define up to 6 periods per day. The thermostat will automatically follow this schedule.
- Chế độ tiết kiệm: In this mode, the temperature is maintained at a fixed 20°C (or other preset economy temperature) and cannot be adjusted manually. This is ideal for energy saving when you are away or during specific times.

The thermostat display showing weather information and the mobile app interface for setting a 6-period programmable schedule.
3. Kiểm soát ứng dụng
Control your thermostat remotely using the "My Smart Life" app. This allows you to adjust settings, change modes, and monitor your home's temperature from anywhere.

The mobile app interface showing remote control capabilities for the thermostat, including temperature adjustment and mode selection.
4. Điều khiển bằng giọng nói
The thermostat is compatible with popular voice assistants like Amazon Alexa and Google Home. Once connected to your smart home system, you can use voice commands to control your heating.
- Example Lệnh: "Alexa, set bedroom to 25 degrees."
- Example Lệnh: "Này Google, bật hệ thống sưởi lên."

The thermostat displayed in a living room setting with Amazon Echo and Google Home devices, illustrating voice control compatibility.
5. Chức năng khóa trẻ em
To prevent accidental changes to settings, the thermostat features a child lock. Press and hold the lock button (usually the padlock icon) for 5 seconds to activate or deactivate the lock. You can choose between a full lock (all buttons disabled) or a partial lock (only temperature adjustment disabled).
BẢO TRÌ
- Vệ sinh: Wipe the screen and body with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Cập nhật phần mềm: Ensure your app is up-to-date for the latest features and performance improvements. Firmware updates for the thermostat may be available through the app.
- Chu kỳ nguồn điện: If the thermostat becomes unresponsive, try turning off the power at the circuit breaker for a few minutes, then restore power.
Xử lý sự cố
| Vấn đề | Nguyên nhân có thể | Giải pháp |
|---|---|---|
| Bộ điều nhiệt không hoạt động. | Hệ thống dây điện không chính xác hoặc không có nguồn điện. | Verify wiring connections (L and N terminals) and ensure power is supplied to the thermostat. Consult a qualified electrician if unsure. |
| Không thể kết nối với Wi-Fi / Ứng dụng. | Incorrect Wi-Fi frequency (5GHz), incorrect password, or device not in pairing mode. | Ensure your router is broadcasting a 2.4 GHz Wi-Fi signal and your phone is connected to it. Put the thermostat into pairing mode (hold Up button for 8 seconds). Re-enter Wi-Fi password carefully. |
| Flame icon flickering / High temperature protection. | External sensor not connected or incorrectly configured. | If an external sensor is not used, ensure the thermostat's sensor type setting is correct. Access advanced settings (hold 'F' button), navigate to 'AL', and adjust to 'IN' if necessary. |
| Đo nhiệt độ không chính xác. | Thermostat calibration needed. | Access advanced settings to calibrate the temperature. (Specific steps for calibration are not detailed in the provided data, refer to the full manual via QR code). |
| Clock losing time / Program not running correctly. | Internal clock drift or Wi-Fi connection issues preventing time synchronization. | Ensure a stable Wi-Fi connection for automatic time synchronization. If issues persist, a factory reset and re-pairing might be necessary. |
| Thermostat frequently loses app connection. | Unstable Wi-Fi signal or router interference. | Ensure the thermostat is within good range of your 2.4 GHz Wi-Fi router. Try restarting your router. If issues persist, consider repositioning the router or using a Wi-Fi extender. |
Thông số kỹ thuật
| Tính năng | Chi tiết |
|---|---|
| Thương hiệu | Giảm giá |
| Tên mẫu | GC |
| Kích thước sản phẩm | 4cm x 12.7cm x 8.8cm |
| Loại bộ điều khiển | Amazon Alexa, Google Assistant, Button |
| Tính năng đặc biệt | APP Control, Voice Control, Humidity Sensor |
| Sử dụng cụ thể | nồi hơi |
| Công nghệ kết nối | Wi-Fi (2.4 GHz) |
| Nguồn điện | Nguồn điện AC |
| Tậptage | 240 vôn |
| Kiểu hiển thị | Màn hình tinh thể lỏng |
| Kích thước màn hình | 4.8 inch |
| Kiểu lắp đặt | Treo tường |
| Đèn nền | Đúng |
| Điện năng | 1.5 Watt |
| Trọng lượng sản phẩm | 231 gam |
| Nguyên vật liệu | Máy tính + ABS |
Bảo hành và Hỗ trợ
For warranty information and technical support, please refer to the documentation included with your product or contact Decdeal customer service. You can also find additional resources by scanning the QR code provided in the Setup section.
