blessny BL-8R-B

Solar Powered Rechargeable Exhaust Fan User Manual

Brand: blessny | Model: BL-8R-B

Product Overview

The blessny Solar Powered Rechargeable Exhaust Fan is designed to provide efficient air circulation and ventilation for various outdoor spaces. This system includes an 8-inch exhaust fan, a 25W monocrystalline solar panel, and a 66.6Wh battery backup box, allowing for continuous operation even after sunset. It is ideal for maintaining comfortable and dry environments in locations such as greenhouses, chicken coops, sheds, pet houses, attics, RVs, and boats.

blessny Solar Powered Rechargeable Exhaust Fan complete kit

Figure 1: Complete blessny Solar Powered Rechargeable Exhaust Fan system, showing the solar panel, exhaust fan, and battery backup box.

Key Features:

  • Efficient Air Circulation: 8-inch fan with a maximum airflow of 380 CFM.
  • Battery Backup: 66.6Wh battery box provides up to 9 hours of operation on a full charge.
  • Powerful Solar Panel: 25W monocrystalline solar panel (15.4x12.6 inches) for effective charging.
  • Easy Installation: Includes all necessary screws and a detailed user manual for straightforward setup.
  • Versatile Application: Suitable for greenhouses, sheds, garages, chicken coops, pet houses, attics, RVs, and boats.
  • Quiet Operation: Designed for low noise levels (40 dB).

Package Contents

Before beginning installation, please verify that all components listed below are present in your package:

Packing list for blessny Solar Exhaust Fan

Figure 2: Visual representation of all items included in the product package.

  • 1x 25W Solar Panel
  • 1x 8 Inch Exhaust Fan
  • 1x 66.6Wh Battery Backup Box
  • 1x Solar Panel Bracket Kit
  • 2x Zip-ties
  • 4x Fan Screws Kit (for fan to wall)
  • 2x Expansion Screws (for solar panel to wall)
  • 1x User Manual (this document)

Setup and Installation

Follow these steps for proper installation of your solar exhaust fan system. Ensure the installation location receives ample direct sunlight for optimal solar panel performance.

Installation steps for blessny Solar Exhaust Fan

Figure 3: Step-by-step visual guide for installing the solar exhaust fan system.

  1. Install the Solar Panel Bracket Kit: Attach the bracket to the solar panel using the provided hardware. This bracket allows for adjustable angling of the solar panel.
  2. Mount the Solar Panel: Choose a location on a roof or wall that receives maximum direct sunlight throughout the day. Install the solar panel using the expansion screws. Ensure there is no shade obstructing the solar panel.
  3. Mount the Battery Box: Secure the battery backup box to a wall using the provided screws or zip-ties. Connect the solar panel cord to the input port on the battery box for charging.
  4. Install the Exhaust Fan: Mount the 8-inch exhaust fan to a wall or window opening. Ensure the fan is positioned to effectively exhaust air from the desired space.
  5. Connect Fan to Battery Box: Use the provided connector to link the exhaust fan to the battery backup box.
  6. Power On: Turn on the battery box using its ON/OFF button. Then, activate the exhaust fan using its separate ON/OFF button located on the fan's power cord.

Important Note: The solar panel cable is 17.5 ft long, providing flexibility in placement. The fan's power cord is 4.3 ft long.

Operating Instructions

Your blessny Solar Exhaust Fan is designed for automatic and manual operation, leveraging solar power and battery backup.

Solar Charging:

During daylight hours, the solar panel will convert sunlight into electricity, powering the fan directly and simultaneously charging the 66.6Wh battery. A full charge typically takes 7-10 hours, depending on sunlight intensity.

Solar charging during daytime and exhaust fan operation at night

Figure 4: Illustration of the solar panel charging the battery during the day and the fan exhausting hot air at night using battery power.

Battery Backup Operation:

Once fully charged, the 66.6Wh battery can power the exhaust fan for approximately 9 hours independently, making it suitable for nighttime operation or periods of low sunlight.

Detailed view of the 66.6Wh battery backup box controls

Figure 5: Close-up of the battery backup box, highlighting the battery ON/OFF button and the battery indicator lights.

Controls:

  • Battery ON/OFF Button: Located on the battery backup box. Press to activate or deactivate the battery power supply.
  • Fan ON/OFF Button: Located on the fan's power cord. Press to turn the fan on or off.
  • Battery Indicator Light: On the battery box, these lights show the current charge level of the battery.

Typical Usage Scenarios:

Various installation scenarios for the solar exhaust fan

Figure 6: Examples of the solar exhaust fan installed in a greenhouse, chicken coop, garage, and shed.

The fan is designed to exhaust hot air, providing cooling and ventilation. It is particularly effective in enclosed spaces during warm periods.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your blessny Solar Exhaust Fan.

  • Cleaning the Solar Panel: Periodically wipe the surface of the solar panel with a soft, damp cloth to remove dust, dirt, leaves, or other debris. A clean panel ensures maximum sunlight absorption and charging efficiency. Avoid abrasive cleaners or harsh chemicals.
  • Cleaning the Fan Blades: Over time, dust and debris may accumulate on the fan blades, reducing airflow. Carefully clean the fan blades with a soft brush or cloth. Ensure the fan is turned off and disconnected from the battery box before cleaning.
  • Battery Box Inspection: Check the battery box and all cable connections periodically for any signs of wear, damage, or corrosion. Ensure connections are secure. Keep the battery box in a dry, protected location.
  • General Inspection: Regularly inspect all mounting hardware to ensure the solar panel and fan remain securely attached to their surfaces. Tighten any loose screws as needed.

Troubleshooting

If you encounter issues with your blessny Solar Exhaust Fan, refer to the following common troubleshooting steps:

ProblemPossible CauseSolution
Fan not operating.
  • Battery box OFF.
  • Fan switch OFF.
  • Insufficient battery charge.
  • Loose cable connections.
  • Solar panel not receiving sunlight.
  • Press the ON/OFF button on the battery box.
  • Press the ON/OFF button on the fan cord.
  • Ensure solar panel is in direct sunlight to charge the battery. Check battery indicator lights.
  • Verify all cables are securely connected between the solar panel, battery box, and fan.
  • Relocate solar panel to an unshaded area.
Battery not charging or holding charge.
  • Solar panel dirty or shaded.
  • Faulty solar panel connection.
  • Battery degradation.
  • Clean the solar panel surface. Ensure it is exposed to direct sunlight.
  • Check the connection between the solar panel and the battery box.
  • If the product is within warranty, contact customer support.
Reduced airflow from fan.
  • Fan blades obstructed or dirty.
  • Low battery charge.
  • Turn off the fan and carefully clean the blades.
  • Ensure the battery is fully charged.
Fan making unusual noise.
  • Obstruction in fan.
  • Loose mounting.
  • Turn off and inspect fan for any foreign objects.
  • Check and tighten fan mounting screws.

If the problem persists after attempting these solutions, please contact blessny customer support for further assistance.

Specifications

FeatureDetail
Brandblessny
Model NameBL Fans
Item Model NumberBL-8R-B
Electric Fan DesignExhaust Fan
Power SourceSolar Powered
ColorWhite
Product Dimensions9.8"D x 4"W x 9.8"H
Item Weight7.15 pounds
Room TypeGreenhouse, Shed, Garage, Chicken Coop, Pet House, Attic, RV, Boat
Special FeatureQuiet Operation
Recommended UsesExhausting, Ventilating
Noise Level40 dB
Wattage25 watts (Solar Panel)
Speed2050 RPM
Voltage12 Volts (DC)
Switch TypePush Button (on fan cord and battery box)
Included Components1x Solar Panel, 1x 8 Inch Exhaust Fan, 1x Battery Back Box, 1x Screw Kit, 1x User Manual
Indoor/Outdoor UsageOutdoor
Battery1x 12V battery (included), 66.6Wh capacity
Solar Panel Dimensions15.4" x 12.6"
Fan Diameter8 Inch
Max Air Volume380 CFM
Dimensions of the solar panel, exhaust fan, and battery box

Figure 7: Detailed dimensions of the solar panel, exhaust fan, and battery backup box, including cable lengths.

Warranty and Support

Warranty Information:

This product is typically covered by a manufacturer's warranty. For specific details regarding the warranty period and terms, please refer to the warranty card included in your product packaging or contact blessny customer support directly. The standard return policy allows for returns within 30 days of purchase for refund or replacement.

Customer Support:

For technical assistance, troubleshooting not covered in this manual, or warranty claims, please contact blessny customer support. Contact information can usually be found on the product packaging, the manufacturer's official website, or through your point of purchase.

When contacting support, please have your product model number (BL-8R-B) and purchase date readily available.

© 2025 blessny. All rights reserved.

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