FD Smart Switch User Manual

1. Introduction

Thank you for choosing the FD Smart Switch, Model TYWRA-RF. This smart switch allows you to control your home appliances remotely via the Tuya Smart Life app, voice commands through Alexa or Google Home, and RF remote control. It supports various working modes including self-locking, interlock, and inching mode, making it versatile for different applications such as smart lighting, garage door control, and other automated systems.

This manual provides detailed instructions for installation, setup, operation, and troubleshooting to ensure you get the most out of your smart switch.

Figure 1: Smart Switch overview with app and voice assistant compatibility

2. Safety Information

Please read and understand all safety instructions before installing and operating the device. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Ensure the power supply is disconnected before any installation or wiring work.
• All wiring should be performed by a qualified electrician or in accordance with local electrical codes.
• Do not expose the device to moisture or extreme temperatures.
• Do not attempt to disassemble or repair the device yourself.
• This device is designed for indoor use only.
• USB ports are for power only and are not supported for data transfer or device charging.

Figure 2: Smart Switch with USB ports (not supported)

3. Package Contents

The package typically includes:

• 1 x FD Smart Switch (Model TYWRA-RF)
• 1 x User Manual (PDF version available at PDF User Manual)

Figure 3: Smart Switch with packaging and user manual

4. Specifications

Figure 4: Top view of Smart Switch with model and input details

5. Setup and Installation

5.1 Pre-installation Checklist

Before proceeding with installation, ensure the following:

• Your smartphone or tablet is connected to a 2.4GHz Wi-Fi network with internet access. (5GHz Wi-Fi is not supported).
• You have the correct Wi-Fi password.
• Bluetooth is enabled on your phone for initial setup.
• Your smartphone or tablet has access to the App Store (iOS) or Google Play Store (Android).
• Your router's MAC filtering is open (if applicable).

5.2 Wiring Diagram

The Smart Switch comes in two main input voltage variants: DC/AC 7-32V and AC 85-250V. Ensure you use the correct wiring for your specific model.

For AC 85-250V Model:

Figure 5: Smart Switch 85-250V model

Figure 6: Internal circuit board showing relay and connections

The 85-250V model typically uses the following connections:

• Input: Connect AC 85-250V to the designated input terminals (L and N).
• Output: The output provides a switching signal (NO, COM, NC) without voltage. Connect your appliance's load to the appropriate terminals based on your desired operation (e.g., NO and COM for normally open).

For DC/AC 7-32V Model:

Figure 7: Smart Switch 7-32V model

The 7-32V model uses the following connections:

• Input: Connect DC/AC 7-32V to the designated input terminals.
• Output: Similar to the 85-250V model, the output provides a switching signal (NO, COM, NC) without voltage. Connect your appliance's load to the appropriate terminals.

Important: Always ensure the power is OFF before connecting any wires. Incorrect wiring can damage the device or cause electrical hazards.

5.3 App Installation and Account Registration

1. Download the App: Search for "Tuya Smart" or "Smart Life" in your mobile app store (App Store for iOS, Google Play for Android) or scan the QR code below.
2. Register/Login: Open the app and register for a new account if you don't have one. If you already have a Tuya Smart or Smart Life account, simply log in.

Figure 8: QR code for Tuya Smart app download

5.4 Device Pairing

1. Power On: Connect the Smart Switch to its power supply. The connected appliance will work/stop based on the live wire power on/off.
2. Reset Device (if needed): If the network indicator is already blinking fast (0.5s/time), you can skip this step. Otherwise, press and hold the Reset button on the device for 5 seconds until the network indicator (red light) blinks fast (0.5s/time).
3. Add Device in App:
   a. Open the Tuya Smart app.
   b. Tap the "+" icon in the top right corner.
   c. Select "Auto Scan" and wait a few seconds for the app to discover the device.
   d. Once found, tap "Next" and follow the on-screen prompts to connect to your 2.4GHz Wi-Fi network and enter your password.
   e. Name your device for easy identification.

Figure 9: App interface for adding devices and network configuration

6. Operation

6.1 App Control Features

Once paired, you can control your Smart Switch from anywhere using the Tuya Smart Life app.

• On/Off Control: Tap the on/off buttons in the app to control the connected device. The status of the manual switch on the device will also be displayed in real-time in the app.
• Bluetooth Control: If your Wi-Fi network is disconnected, the switch will automatically switch to Bluetooth control, allowing local control via your phone.
• Full Function Interface: Tap on the device name (e.g., "1-RF") in the app's home screen to enter the full function operation interface.

Figure 10: App control interface with device status and settings

6.2 Working Modes

The Smart Switch supports three working modes:

• Self-locking Mode: Press the relay to pull-on, press again to cut off. This acts like a traditional toggle switch.
• Inching Mode: Press the relay to pull-on, then it automatically cuts off after a set time. The default inching time is 1-2 seconds, but you can set it from 2 to 3600 seconds in the app.
• Interlock Mode: (Typically for multi-channel devices, where turning one channel ON turns others OFF). For a 1-channel switch, this mode might not be directly applicable or may function as self-locking.

6.3 Voice Control Integration

The Smart Switch is compatible with Amazon Alexa and Google Home. Follow the instructions within the Tuya Smart Life app to link your account with your voice assistant for hands-free control.

Figure 11: Smart Switch with voice assistant integration

6.4 Timer & Schedule

Use the app to set up timing schedules for your devices. This allows for automated control, such as turning lights on/off at specific times or scheduling appliance operation.

6.5 Share Control

You can share control of your smart switch with family members or friends through the app, allowing multiple users to manage the connected devices remotely.

6.6 RF Remote Control Matching

To pair an RF remote control with your Smart Switch:

1. In the app, navigate to the device's settings (usually by tapping the pencil icon in the top right).
2. Select "RF remote control setup" then "Add".
3. When the prompt interface appears, long-press the button on your RF remote control that you wish to match.
4. Release the remote control button once matching is successful.

To delete a paired RF remote control:

1. In the app, navigate to "RF remote control setup".
2. Swipe left on the remote control entry you wish to delete.
3. Tap the "Delete" option that appears.

Figure 12: App interface for RF remote control setup

7. User Tips

• Garage Door Compatibility: To check if your garage door opener is compatible, use pliers to short-circuit the wall button terminal on the opener. If the garage door opens or closes, the smart switch should work.
• Wi-Fi Stability: Ensure your 2.4GHz Wi-Fi network is stable for optimal performance.
• App Access: Grant necessary permissions to the Tuya Smart Life app on your phone for full functionality, especially for Bluetooth discovery during setup.
• Voltage Check: Double-check the input voltage of your specific smart switch model (7-32V or 85-250V) before wiring to prevent damage.

Figure 13: Testing garage door opener compatibility

8. Troubleshooting

8.1 Device Matching/Offline Issues

If you encounter issues with device matching or if the device goes offline:

1. Ensure your phone's Bluetooth is enabled.
2. Verify your Wi-Fi network is 2.4GHz and has a stable internet connection.
3. Check that you have entered the correct Wi-Fi password.
4. Try resetting the device by holding the Reset button for 5 seconds until the network indicator blinks rapidly.
5. In the app, go to the homepage and click the icon in the lower right corner (often a profile or settings icon) to access further troubleshooting options or support.

8.2 General Connectivity Issues

• No 5GHz Wi-Fi: The device only supports 2.4GHz Wi-Fi. Ensure your phone is connected to a 2.4GHz network during setup.
• Router Settings: If you have MAC filtering enabled on your router, ensure the smart switch's MAC address is allowed.
• Power Cycle: Try power cycling the smart switch and your Wi-Fi router.

9. Maintenance

• Keep the device clean and free from dust. Use a dry, soft cloth for cleaning.
• Do not use harsh chemicals or abrasive cleaners.
• Ensure the device is installed in a well-ventilated area and not exposed to direct sunlight or extreme temperatures outside its operating range (-20℃ to 70℃).
• Regularly check wiring connections for any signs of wear or looseness.

10. Warranty and Support

The product typically comes with a 1-year warranty from the store. For specific warranty details, please refer to your purchase documentation or contact the seller directly.

Fast Delivery & Refunds:

• A coupon code may be provided if delivery is delayed.
• Refunds are available if the package is lost or items are damaged.
• Refunds are also applicable if no delivery occurs within 30 days.

For technical support or further assistance, please refer to the Tuya Smart Life app's support section or contact the seller.

11. Frequently Asked Questions (FAQ)

Q: Does this model support 5GHz Wi-Fi?

A: No, the Smart Switch only supports 2.4GHz Wi-Fi networks.

Q: Can I see the real-time supply voltage, especially if powered by solar energy?

A: The device specifications mention the input voltage range, but it does not explicitly state that it can display the supply voltage in real-time within the app. This feature is not typically available for this type of basic smart switch.

Q: What is the product used for?

A: The Smart Switch is used to remotely control various home appliances, set up timing schedules, and integrate with voice assistants like Alexa and Google Home for smart home automation.

Q: Does it work without Wi-Fi, via Bluetooth or remote control?

A: Yes, if the Wi-Fi connection is lost, the switch can automatically switch to Bluetooth control for local operation via your phone. It also supports RF remote control after pairing.

Q: Where do I connect the output cables for positive (+) and negative (-)?

A: The output terminals are typically labeled NO (Normally Open), COM (Common), and NC (Normally Closed). These provide a switching signal without voltage. You connect your appliance's load to the appropriate terminals based on your circuit design. For DC loads, ensure correct polarity if your appliance requires it, but the switch itself provides a dry contact closure.

Q: How do I connect the device?

A: Please refer to the '5.2 Wiring Diagram' section in this manual for detailed instructions on connecting the input power and output load to the smart switch.