1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Rti-Tek AM002WS-7-WIFI Smart Wifi Heating Thermostat. This intelligent constant temperature controller is designed for multi-scenario heating applications, particularly suitable for wall-mounted boiler control in wall-mounted boiler heating systems. It offers smart control via the Tuya Smart/Smart Life app, voice control with Amazon Alexa and Google Assistant, and flexible programming options.
Product Highlights
- Powered By Battery: No need for separate AC power installation, ensuring easy setup.
- Multiple Modes: Choose between Manual mode, Program mode, and Temporary Program mode.
- Weekly Programmable: Supports 5+2, 6+1, or 7-day programming with 6 time slots on weekdays and 2 on rest days, allowing for customized temperature settings.
- Adjustable Backlight: Backlight brightness can be adjusted and turned off to prevent sleep disturbance.
- Precise Temperature Control: Features a temperature hysteresis of 0.5~10℃ and a minimum temperature setting of 0.5℃ for enhanced comfort.
- Temperature Calibration: Displayed room temperature can be calibrated from +9.9°C to -9.9°C.
- Anti-frost Function: Automatically activates heating if the indoor temperature drops below 5°C to prevent freezing.
- Group-Control Function: Enables group control for multiple thermostats in different rooms via the app.
2. Specifications

Image: Technical specifications as listed in the manual.
| Attribute | Value |
|---|---|
| Model Number | AM002WS-7-WIFI |
| Brand Name | Rti-Tek |
| Product Type | Tuya Wifi Boiler Thermostat Wireless Gas Boiler Water Heating |
| Certification | CE, RoHS |
| Origin | Mainland China |
| APP Compatibility | Tuya Smart/Smart Life |
| Voice Control | Amazon Alexa / Google Assistant |
| Suitable for | Gas Boiler / Water Heating |
| Installation | Wall mount |
| High-concerned chemical | None |
| Parameter | Value |
|---|---|
| Power Supply Mode | AC85-250V, 50/60HZ or 3 x 1.5V alkaline AA batteries or USB supply power |
| 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 |
| Child Lock Function | Support |
| Weekly Programmable | Support |
| Low Power Alarm | Support |
| Antifreeze Function | Support |
| Electrical Safety Standard | GB14536.1-2008, GB14536.10-2008 |

Image: Product dimensions (99mm x 97mm x 23mm).
3. Package Contents
The product package includes the following items:
- Intelligent wireless temperature controller x1
- Green rubber plug x2
- PM4*25 Delivery screws x2
- Product manual x1

Image: Visual representation of the package contents.
4. Setup and Installation
4.1 Power Supply Methods
The thermostat supports three power supply methods: direct wiring (AC85-250V), battery power (3x AAA batteries), or USB power.
Video: Demonstration of the three power supply methods (wiring, battery, USB) for the thermostat.

Image: Illustration of battery (3x 1.5V AA) and 220V AC power supply options.
4.2 Physical Installation
- Disassembly: Carefully disassemble the temperature controller's display case and the bottom case.
- Mounting: Use the provided screws to install the bottom case onto the wall or junction box.
4.3 Wiring Diagram
Important: Installation must be carried out by qualified professionals. All wiring must comply with local and national construction and electrical regulations and rules.

Image: Wiring diagram for a wall-mounted boiler. N is the neutral wire, L is the live wire for power supply. COM is the common terminal, NO is the normally open contact, and NC is the normally closed contact for controlling equipment output. Users choose per their equipment needs.

Image: Detailed wiring diagram for potential free relay connections, showing control wires (black/gray) and power supply wires (blue/brown).
5. Operation
5.1 Launch Panel Operating Instructions

Image: Description of display icons and control buttons.
- Power On/Off Button: Press once to turn on, press again to power off.
- Mode Key (88): In the power-on state, press to switch between working modes. The display will show a house icon for manual mode and a clock icon for programming mode.
- Clock Keys (L): When the thermostat is on, use this button to set the hour, minute, and day.
- Knob Keys (ECO): Rotate left/right to adjust values (right for addition, left for subtraction). A short press activates the ECO (energy saving) mode. A long press will open or close the child lock.
5.2 Key Features
- App Control: Control your heating system from anywhere using the Tuya Smart or Smart Life application on your smartphone.
- Voice Control: Compatible with Amazon Alexa and Google Assistant for convenient voice commands.
- Independent Room Control: Adjust the temperature for each room independently to suit specific needs.
- Child Lock Function: Prevents accidental changes to settings. When activated, a child lock icon is displayed.
- Low Power Alarm: Under battery power, a low battery alarm sounds when the voltage drops to 2.7V.
- Antifreeze Function (Frost Protection): If the indoor temperature falls below 5°C, the thermostat automatically activates heating. Heating stops when the temperature reaches 7°C.

Image: Thermostat display and Tuya Smart app interface.

Image: Voice control setup with Amazon Alexa and Google Assistant.

Image: Illustration of independent temperature control for different rooms.

Image: Child lock feature preventing accidental contact.

Image: Thermostat display showing the low power alarm icon.

Image: Thermostat display showing the antifreeze icon.
6. Programming Settings
6.1 Weekly Programming
In the power-on state, long press the clock button to enter the programming mode. This will bring you to the programming setting interface. Use the clock button to switch between parameters (time/temperature). Adjust the time or set the temperature by rotating the knob (left/right). Repeat this operation for the following time periods. Press the power on/off button to save and exit.

Image: Default time and temperature settings for weekly programming.

Image: Time programming interface in the Tuya application, showing 6 time periods for weekdays and 2 for rest days.
6.2 Advanced Option Settings
To access advanced options:
- In the shutdown state, press and hold the mode button for 3 seconds.
- The thermostat will enter the advanced option setting interface.
- Press the mode button to cycle through the advanced option parameters.
- Adjust the knob left/right to set the desired parameters.
- Press the power on/off button to save and exit.
| Parameter | Default Value | Functional Implications |
|---|---|---|
| Upper Temperature Limit | 35°C | Set the upper temperature range: 30~70°C |
| Lower Temperature Limit | 10°C | Set the lower temperature range: 5~20°C |
| Temperature Compensation | 0 | Temperature compensation range: -9~9°C |
| Start Temperature Difference | 01 | Temperature difference starting range: 1~5°C |
| Weekly Programming Selection | 01 | 00: Off, 01: Single Day, 02: Double Rest, 03: No Holiday |
| Energy Saving Mode Temperature Setting | 16°C | Temperature setting range: 10~20°C |
| Antifreeze Function | ON | ON: Enable anti-freeze function. OFF: Turn off anti-freeze function. |
| Factory Reset | - | Press and hold the power off button for 3 seconds to display "----", then press the power button to exit. |
7. Network Configuration
7.1 Host Configuration Networking
When the transmitter panel is powered on, press and hold the mode button for 3 seconds. The screen will display a full display, indicating the control panel has entered the network initialization state. Ensure your router or corresponding WiFi device is turned on and within 5 meters. A normal WiFi signal indicates a successful connection.
7.2 Mobile Phone Networking (Tuya Smart/Smart Life App)
Ensure your phone's 2.4GHz WiFi and Bluetooth are enabled.
- Download App: Scan the QR code below with your phone to download and install the "Graffiti Smart" (Tuya Smart/Smart Life) app.
- Add Device: Open the app and click on "Add Device".
- Connect to WiFi: After clicking on the added device, enter your WiFi password and click "Next".
- Device Search: The phone will enter device search and connection mode. The icon will indicate searching.
- Connection Complete: Once successfully connected, a checkmark icon will be displayed. Click "Finish" to enter the control interface.

Image: QR codes for downloading the Tuya Smart app (Domestic and Abroad versions).
7.3 Device Sharing Instructions
- Click the "..." icon on the App control interface.
- Click on "Share Device".
- Click on "Share with Graffiti Smart Account".
7.4 OTA Remote Upgrade
The thermostat supports Over-The-Air (OTA) remote upgrades to ensure you have the latest features and improvements.
- Click on the "..." icon in the app control interface.
- Click on 'Device Upgrade'.
- The app will check for updates. If an update is found, follow the on-screen prompts to update. Ensure the device remains powered during the upgrade process.
- Once the update is complete, the app will indicate "No updates available".

Image: Screenshots illustrating the OTA remote upgrade process within the app.
8. Troubleshooting (FAQ)

Image: Frequently Asked Questions as presented in the manual.
- Q1: Why does the device restart after unplugging the USB when the battery and USB are used simultaneously?
- When USB power is detected, the power supply from the battery source is cut off to conserve battery life. After unplugging the USB, the device will restart to switch back to battery power.
- Q2: Why does the backlight not light up when using battery power and turning on WiFi?
- To extend battery life, the WiFi function is enabled, but the backlight is forcefully turned off when only battery power is used. The backlight will turn back on when connected to USB or 220V power.
- Q3: Why does using 220V power supply slightly increase the room temperature by 2-3 °C?
- When using 220V power, internal components generate heat, causing the temperature detection to be 2-3 °C higher than the actual temperature. You can calibrate the temperature by -2 °C through the advanced option (third item - temperature compensation) on the device, or adjust it via the app.
- Q4: Why does the device not reconnect after being powered on by a battery and connected to WiFi?
- When using battery power, WiFi is not turned on by default to conserve battery life. If the device was previously 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?
- Ensure your home network is operating in the 2.4GHz frequency band when adding the device. If it's in the 5GHz frequency band, the device may not be able to be added.
9. User Tips
- Optimize Battery Life: If using battery power, remember that WiFi is off by default. To reconnect to WiFi, press and hold the device for 5 seconds.
- Accurate Temperature Readings: If you notice a slight temperature discrepancy when using 220V power, utilize the temperature compensation feature in the advanced settings (or via the app) to adjust it by -2°C for more accurate readings.
- Network Compatibility: Always ensure your router is set to a 2.4GHz WiFi frequency when initially connecting the thermostat to avoid connection timeouts.