1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Rti-Tek AM002WS-7-WIFI Tuya Smart Thermostat. This intelligent wired constant temperature controller is designed for multi-scenario heating, suitable for wall-mounted boiler control in wall-mounted boiler heating systems. It offers smart control via the Tuya/Smart Life app, voice control with Amazon Alexa and Google Assistant, and flexible power supply options.
Figure 1: Thermostat with app and voice assistant integration.
2. Safety Information
- Installation must be carried out by qualified professionals.
- All wiring must comply with local and national construction and electrical regulations and rules.
- Ensure power is disconnected before any installation or maintenance work.
- Do not expose the device to excessive moisture or extreme temperatures.
3. Product Overview
3.1. Components
The thermostat consists of a display unit with control buttons and a rotary knob, and a base unit for wiring and power supply.
3.2. Display Icon Description
Figure 2: Display Icon Description
- Week: Day of the week indicator.
- WiFi: WiFi connection status.
- Indoor Temperature: Current room temperature.
- Manual Mode: Indicates manual operation.
- Programming Mode: Indicates scheduled operation.
- Antifreeze Mode: Indicates frost protection is active.
- Power On/Off Button: Controls device power.
- Mode Key: Switches between operating modes.
- Clock Key: Used for setting time and date.
- Time Icon: Current time display.
- Programming Period Icon: Indicates active programming period.
- Setting Temperature: Desired temperature setting.
- Low Power Alarm: Indicates low battery.
- Child Lock Mode: Indicates child lock is active.
- Energy Saving Mode: Indicates ECO mode is active.
- Rotary Knob Key: Adjusts settings and activates ECO/Child Lock.
4. Specifications
| Attribute | Value |
|---|---|
| Brand Name | Rti-Tek |
| Model Number | AM002WS-7-WIFI |
| Product Type | Tuya Wifi Boiler Thermostat Wireless Gas Boiler Water Heating |
| APP | Tuya Smart/Smart Life |
| Power Supply | 3 x 1.5 V alkaline AA batteries Or USB supply power (AC85-250V, 50/60Hz) |
| Temperature Sensor | NTC |
| Display Range | 0~90°C |
| Temperature Setting Range | 5~70°C |
| Applicable Temperature | 0~50°C |
| Temperature Accuracy | ±0.5°C |
| Current Load | 3A (resistive) |
| WiFi Communication Protocol | IP/TCP/MQTT |
| WiFi Frequency | 2.412GHz~2.484GHz |
| Voice Control | Amazon Alexa / Google Assistant |
| Child Lock Function | Support |
| Weekly Programmable | Support |
| Installation | Wall mount |
| Low Power Alarm | Support |
| Antifreeze Function | Support |
| Certification | CE, RoHS |
| Product Dimensions | 99mm (L) x 97mm (W) x 23mm (D) |
| Package Weight | 0.2 kg |
5. Setup and Installation
5.1. Power Supply Options
The thermostat supports three power supply methods: direct wiring (AC85-250V), battery power, and USB connection.
Video 1: Demonstration of the three power supply methods (Wiring, Battery, USB).
Figure 3: Two power supply options: 3x 1.5V AA batteries or AC85-250V wired connection.
5.1.1. Wired Power Supply (AC85-250V)
- Open the display and bottom shells of the thermostat.
- Connect the neutral wire (N) and live wire (L) for power supply to the designated terminals.
- Connect the COM, NO, or NC terminals based on your equipment's needs for controlling output.
- After completing the wiring, install the bottom shell.
5.1.2. Battery Power Supply
- Open the bottom shell of the thermostat.
- Install three AA batteries into the battery compartment.
- Close the bottom shell.
5.1.3. USB Power Supply
- Connect a USB cable to the USB port of the temperature controller.
5.2. Physical Installation
- Disassemble the temperature controller display case and bottom case.
- As shown in the wiring diagram, use screws to install the bottom plate and junction box together.
- Install the temperature controller onto the mounted base.
- Ensure all connections are secure and the device is properly mounted.
Figure 4: Wiring diagram for wall-mounted boiler. N is neutral wire, L is live wire. COM is common terminal, NO is normally open contact, NC is normally closed contact.
Figure 5: General wiring diagram for heating systems.
5.3. Network Configuration (Tuya/Smart Life App)
The thermostat can be controlled via the Tuya Smart or Smart Life app. Ensure your phone is connected to a 2.4GHz Wi-Fi network and Bluetooth is enabled.
- Download the App: Scan the QR code below or search for "Tuya Smart" or "Smart Life" in your app store to download and install the application.
- Host Configuration Networking: When the thermostat panel is powered on, press and hold the mode button (88) for 3 seconds. The screen will display a full display, indicating the control panel has entered network initialization state. Ensure your router or corresponding WiFi device is within 5 meters.
- Add Device: Open the Tuya Smart app and click on "Add Device". The app will search for nearby devices.
- Connect to WiFi: After the device is found and added, enter your Wi-Fi password and click "Next".
- Completion: Once successfully connected, the WiFi icon will be displayed on the thermostat. Click "Finish" in the app to enter the control interface.
Figure 6: App control interface.
5.4. Device Sharing Instructions
- On the App control interface, click the settings icon (usually a pencil or gear icon).
- Select "Share Device".
- Choose "Share with Graffiti Smart Account" or "Share with Others" and follow the prompts to share control of the device.
6. Operating Instructions
6.1. Launch Panel Operations
- Power On/Off Button: Press once to turn on, press again to power off.
- Mode Key (88): In power-on state, press to switch between working modes. The "house" icon indicates manual mode, and the "calendar" icon indicates programming mode.
- Clock Key: When the machine is turned on, use this button to set the hour, minute, and day.
- Knob Keys: Rotate right to increase values, rotate left to decrease values. A short press activates ECO (energy saving) mode. A long press opens/closes the child lock.
6.2. Programmatic Settings (Weekly Schedule)
In the power-on state, long press the clock button to enter the programming mode. Use the clock button to switch between time and temperature parameters. Adjust the knob to modify the time or set the temperature for each period. Press the power on/off button to save and exit.
Figure 7: Default programming schedule.
Figure 8: Time programming via the Tuya app.
6.3. Advanced Option Settings
In the shutdown state, press and hold the mode button (88) for 3 seconds to enter advanced option settings. Use the mode button to switch parameters, adjust the knob to set values, and press the power on/off button to save and exit.
| Parameter Item | Name | Default Value | Functional Implications |
|---|---|---|---|
| 1 | Set the upper temperature limit | 35°C | Set the upper temperature range: 30~70°C |
| 2 | Set the lower temperature limit | 10°C | Set the lower temperature range: 5~20°C |
| 3 | Temperature compensation | 0 | Temperature compensation range: -9~9°C |
| 4 | Start temperature difference | 01 | Temperature difference starting range: 1~5°C |
| 5 | Weekly programming selection | 01 | 00: Off, 01: 5+2, 02: Single Day, 03: No Holiday |
| 6 | Energy saving mode temperature setting | 16°C | Temperature setting range: 10~20°C |
| 7 | Antifreeze function | ON | ON: Enable anti-freeze function. OFF: Turn off anti-freeze function. |
| 8 | Factory reset | - | Press and hold power off button for 3 seconds to display "----", press power button to exit. |
6.4. Voice Control
The thermostat supports voice control through Amazon Alexa and Google Assistant. Once integrated with your smart home system, you can use voice commands to adjust the temperature.
Figure 9: Voice control with smart assistants.
6.5. Child Lock Function
To prevent accidental changes, especially by children, the thermostat features a child lock. Long press the rotary knob key to activate or deactivate the child lock. When active, a lock icon will appear on the display.
Figure 10: Child lock feature.
6.6. Antifreeze Function
The thermostat includes an antifreeze function to protect your heating system. If the indoor temperature drops below 5°C, the thermostat will automatically activate heating. Heating will stop once the room temperature reaches 7°C. An anti-freeze icon will be displayed when this function is active.
Figure 11: Antifreeze function in action.
6.7. Low Power Alarm
When operating on battery power, the thermostat will sound an alarm when the battery voltage drops to 2.7V, indicating that the batteries need to be replaced soon.
Figure 12: Low power alarm indicator.
6.8. OTA Remote Upgrade
The thermostat supports Over-The-Air (OTA) remote upgrades through the Tuya app, allowing for firmware updates and new features.
Figure 13: OTA remote upgrade capability.
7. Maintenance
- Clean the thermostat regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Replace batteries promptly when the low power alarm is triggered to ensure continuous operation.
- Keep the thermostat's vents clear of dust and debris to ensure proper temperature sensing.
8. Troubleshooting (FAQ)
Q1: Why does the device restart after unplugging the USB when the battery and USB are used simultaneously?
When USB usage is detected, the power supply to the battery source will be cut off to ensure battery life. After unplugging the USB, the device will restart to select battery power again.
Q2: Why does the backlight not light up when using battery power and turning on WiFi?
In order to extend battery life, the WiFi function is turned on and the backlight is forcefully turned off when only battery power is used. When connected to USB or 220V power, the backlight function will be turned back on.
Q3: Why does using 220V power supply slightly increase the room temperature by 2-3 °C?
When using 220V power supply, internal components generate heat, causing temperature detection to be 2-3 °C higher than the actual temperature. You can calibrate the temperature by -2 °C through the advanced option (item 3 - temperature compensation) on the device, or make adjustments through the app.
Q4: Why does the device not reconnect after being powered on by a battery and connected to WIFI?
When using battery power, to ensure battery life, WiFi is not turned on by default. If you have already connected to WiFi, press and hold the device for 5 seconds to turn on WiFi, and it will automatically reconnect.
Q5: Why do devices always timeout when searching for them?
Please ensure that your home network is in the 2.4GHz frequency band when adding the device. If it is in the 5GHz frequency band, it will cause the device to be unable to be added.
9. User Tips
- For optimal battery life, consider using the wired power supply if available, as WiFi functionality can increase battery consumption.
- Regularly check for OTA updates via the Tuya app to ensure your thermostat has the latest features and improvements.
- Utilize the weekly programming feature to automate your heating schedule and optimize energy savings.
10. Warranty and Support
For warranty information, please refer to the product packaging or contact your retailer. For technical support, please reach out to Rti-Tek customer service.
A PDF version of this user manual is available for download. Please refer to the official product page or contact customer support for the link: User manual (PDF)