សេចក្តីផ្តើម
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.
ផលិតផលលើសview

ខាងមុខ 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:
- របៀបដែលអាចកម្មវិធីបាន៖ 5+1+1 weekly programming for customized heating schedules.
- ការត្រួតពិនិត្យ APP៖ Remote control via the "My Smart Life" app (or Tuya Smart app) from your mobile device.
- ការគ្រប់គ្រងសំឡេង៖ 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.
- ចាក់សោកុមារ៖ Option to fully or partially lock the touchscreen to prevent accidental changes.
រៀបចំ
១. ការដំឡើងរូបវន្ត និងខ្សែភ្លើង
សំខាន់៖ 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): Connect to terminals 1 and 2.
- Neutral Line (N): Connect to terminal 3.
- Live Wire (L): Connect to terminal 4.
- Temperature Sensor (Optional): Connect to terminals 5 and 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. ការដំឡើងកម្មវិធី និងការភ្ជាប់ 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:
សេចក្តីណែនាំប្រតិបត្តិការ
៦.១. អេក្រង់ LCD លើសview

លម្អិត 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: Indicates when the heating system is active.
- (2) Periods: Shows the current programming period.
- (3) Monday to Sunday: សូចនាករថ្ងៃនៃសប្តាហ៍។
- (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: បង្ហាញពេលវេលាបច្ចុប្បន្ន។
- (8) Advanced Options: Accesses advanced settings.
- (9) Mode: Switches between operating modes (Manual, Program, Economy).
- (១) ថាមពល៖ បើក/បិទទែម៉ូស្តាត។
- (11) Time: ការបង្ហាញពេលវេលាបច្ចុប្បន្ន។
- (12) Set Temp: Desired temperature setting.
- (13) Menu: Accesses menu options.
- (14) Room Temp: សីតុណ្ហភាពបន្ទប់បច្ចុប្បន្ន។
- (15) Lock: បង្ហាញប្រសិនបើអេក្រង់ត្រូវបានចាក់សោ។

Close-up of the LCD display and responsive touch keys for easy interaction.
2. របៀបប្រតិបត្តិការ
The thermostat offers several operating modes to suit your needs:
- របៀបដោយដៃ៖ 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.
- របៀបសន្សំសំចៃ៖ 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. ការគ្រប់គ្រងកម្មវិធី
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. ការគ្រប់គ្រងសំឡេង
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.
- Exampពាក្យបញ្ជា៖ "Alexa, set bedroom to 25 degrees."
- Exampពាក្យបញ្ជា៖ "Hey Google, turn on the heating."

The thermostat displayed in a living room setting with Amazon Echo and Google Home devices, illustrating voice control compatibility.
5. មុខងារចាក់សោកុមារ
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).
ថែទាំ
- ការសម្អាត៖ Wipe the screen and body with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- ការអាប់ដេតកម្មវិធី៖ 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.
- វដ្តថាមពល៖ If the thermostat becomes unresponsive, try turning off the power at the circuit breaker for a few minutes, then restore power.
ការដោះស្រាយបញ្ហា
| បញ្ហា | មូលហេតុដែលអាចកើតមាន | ដំណោះស្រាយ |
|---|---|---|
| ទែម៉ូស្តាតមិនបើកទេ។ | ខ្សែភ្លើងមិនត្រឹមត្រូវ ឬគ្មានការផ្គត់ផ្គង់ថាមពល។ | Verify wiring connections (L and N terminals) and ensure power is supplied to the thermostat. Consult a qualified electrician if unsure. |
| Cannot connect to Wi-Fi / App. | 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. |
| ការអានសីតុណ្ហភាពមិនត្រឹមត្រូវ។ | 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. |
លក្ខណៈបច្ចេកទេស
| លក្ខណៈ | លម្អិត |
|---|---|
| ម៉ាក | កិច្ចព្រមព្រៀង |
| ឈ្មោះម៉ូដែល | GC |
| វិមាត្រផលិតផល | 4P x 12.7L x 8.8H cm |
| ប្រភេទឧបករណ៍បញ្ជា | Amazon Alexa, Google Assistant, Button |
| លក្ខណៈពិសេស | APP Control, Voice Control, Humidity Sensor |
| ការប្រើប្រាស់ជាក់លាក់ | ឡចំហាយ |
| បច្ចេកវិទ្យាតភ្ជាប់ | វ៉ាយហ្វាយ (2.4 GHz) |
| ប្រភពថាមពល | អេឡិចត្រូនិច AC |
| វ៉ុលtage | 240 វ៉ុល |
| ប្រភេទបង្ហាញ | អេក្រង់ LCD |
| ទំហំអេក្រង់ | ៤.៧៥ អ៊ីញ |
| ប្រភេទម៉ោន | ជញ្ជាំងម៉ោន |
| ពន្លឺខាងក្រោយ | បាទ |
| ថាមពលអគ្គិសនី | 1.5 វ៉ាត់ |
| ទំងន់ធាតុ | 231 ក្រាម។ |
| សម្ភារៈ | កុំព្យូទ័រ + ABS |
ការធានា និងការគាំទ្រ
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.
