XIIW 100mm Bathroom Fan with Timer

1. Introduction

Thank you for choosing the XIIW 100mm Bathroom Fan. This manual provides essential information for the safe installation, operation, and maintenance of your new fan. Please read these instructions carefully before installation and retain them for future reference.

Safety Instructions

• Ensure the power supply is disconnected before installation or maintenance.
• Installation must be performed by a qualified electrician in accordance with local wiring regulations.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
• Do not immerse the fan in water or other liquids.
• Ensure proper ventilation in the room when the fan is operating, especially if other fuel-burning appliances are present.

2. Product Overview

The XIIW 100mm Bathroom Fan is designed for efficient ventilation in bathrooms, toilets, kitchens, and other small to medium-sized rooms. It features a quiet bearing motor, an adjustable timer, and a backdraft damper for enhanced functionality.

Key Features:

• Adjustable Timer: Allows the fan to continue operating for a set period (0 to 30 minutes) after the light switch is turned off.
• Backdraft Damper: Prevents cold air, moisture, and insects from entering the room when the fan is off.
• Quiet Operation: Operates at a low noise level of 34 dB.
• Durable Construction: Made from weather-resistant and UV-resistant plastic, ensuring no yellowing over time.
• IPX4 Splash-proof: Suitable for installation in bathroom zones where splashing water may occur.

Image 2.1: Detailed dimensions and key specifications of the XIIW 100mm Bathroom Fan. This image illustrates the fan's physical measurements and highlights features like 100mm duct size, 95m³/h airflow, 34dB noise level, IPX4 protection, 12W power, and 230V voltage.

3. Setup and Installation

This section provides general guidelines for installing your XIIW bathroom fan. For detailed wiring diagrams and specific installation requirements, consult a qualified electrician.

Installation Steps:

1. Preparation: Ensure the power supply to the installation area is completely switched off at the main circuit breaker.
2. Mounting Location: Choose a suitable wall-mounted location, ensuring it is compatible with 100mm ventilation ducts.
3. Opening the Cover: Carefully open the fan's front cover to access the wiring terminals.

Image 3.1: Illustration showing how to carefully open the fan's front cover using a screwdriver to access internal components for wiring or maintenance.
4. Wiring: Connect the electrical wires to the appropriate terminals. This fan does not require a ground wire connection. Refer to the wiring diagram provided with the product for specific connections (Live, Neutral, Switched Live for timer).
5. Mounting the Fan: Secure the fan body to the wall using appropriate screws and fixings.
6. Duct Connection: Connect the 100mm ventilation duct to the fan's outlet. The integrated backdraft damper will prevent reverse airflow.


Image 3.2: Close-up view of the fan's backdraft damper mechanism, designed to prevent insects and cold air from entering the room when the fan is not operating.

7. Final Assembly: Reattach the front cover securely.
8. Power Restoration: Restore power to the circuit.

4. Operating Instructions

The XIIW bathroom fan operates automatically when connected to a switched live feed, typically from a room's light switch. Its primary adjustable feature is the run-on timer.

Timer Function Adjustment:

The fan is equipped with an adjustable run-on timer, allowing it to continue operating for a set duration after the power supply (e.g., light switch) is turned off. The timer can be set from approximately 0 minutes to 30 minutes.

1. Accessing the Potentiometer: Disconnect power to the fan. Carefully open the front cover as described in the Setup section (Image 3.1) to access the electronic board.
2. Adjusting the Timer: Locate the potentiometer (a small adjustable screw or knob) on the electronic board, often labeled "Timer" or with a clock icon.


Image 4.1: Close-up of the fan's electronic board, highlighting the timer adjustment potentiometer. This allows users to set the fan's run-on time.

3. Setting the Delay:
   • Turn the potentiometer counter-clockwise to decrease the run-on time (minimum approximately 0 minutes).
   • Turn the potentiometer clockwise to increase the run-on time (maximum approximately 30 minutes).
4. Testing: After adjustment, reattach the cover and restore power. Test the fan by turning the light switch on and off to verify the desired run-on time. Readjust if necessary.

5. Maintenance

Regular cleaning and maintenance will ensure optimal performance and longevity of your XIIW bathroom fan.

Cleaning Instructions:

1. Disconnect Power: Always ensure the power supply to the fan is disconnected at the main circuit breaker before cleaning.
2. Remove Front Cover: Carefully open the front cover as described in the Setup section (Image 3.1).
3. Clean Fan Blades and Housing: Use a soft, damp cloth and a mild detergent to wipe down the fan blades, motor housing, and the interior of the cover. Avoid using abrasive cleaners or solvents.
4. Clean Backdraft Damper: Ensure the backdraft damper mechanism is free from dust and debris to allow for smooth operation.
5. Dry Components: Allow all components to dry completely before reassembling.
6. Reassemble: Securely reattach the front cover.
7. Restore Power: Restore power to the circuit.

Recommended cleaning frequency: Every 3-6 months, depending on usage and environmental conditions.

6. Troubleshooting

If you encounter issues with your XIIW bathroom fan, refer to the following common problems and solutions before contacting support.

7. Specifications

Technical details for the XIIW 100mm Bathroom Fan, Model LFWW-09QT-4B.

8. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the retailer. Keep your proof of purchase for warranty claims.

For further assistance, you may also visit the XIIW brand page on Amazon.