20 Foot HVLS Ceiling Fan | 6 Blades | 19,750 Square Foot Coverage | 137,000 CFM

Product Overview

This is a 20 foot diameter, 6-blade HVLS ceiling fan designed for large, open commercial and industrial spaces. The fan delivers up to 137,000 CFM and covers up to 19,750 square feet. It operates at a maximum speed of 49 RPM and produces less than 59 dBA of sound during operation.

The fan is equipped with a 1.5 HP gear drive motor and supports both single-phase and three-phase power at 208-240V and 460-480V. A NEMA 1 wall-mounted VFD controller is included for variable speed control, on/off operation, and safety disconnect. The fan weighs 197 lbs and features aluminum blades finished in black.

Mounting options include I-Beam, Z-Purlins, and open joist structures. Downrod extensions are available in 1 ft, 2 ft, 3 ft, and 6 ft lengths to accommodate different ceiling heights and installation requirements. Minimum mounting height is 12 feet, with at least 6 feet of ceiling clearance and 2 feet of horizontal clearance required.

Safety features include a safety cable, hub clips, hub retainer, dual-method fastening for all joined components, and an integrated sprinkler shut-off.

Where This Product Fits Best

This 20 foot HVLS fan is suitable for large, open-plan environments where consistent air movement is needed across wide areas. Typical applications include warehouses, manufacturing facilities, distribution centers, aircraft hangars, and gymnasiums.

It is designed for spaces with ceiling heights of at least 12 feet and where structural mounting to I-Beams, Z-Purlins, or open joists is possible. The fan is appropriate for facilities requiring low noise operation and high airflow coverage.

Use cases include temperature equalization, occupant comfort, and general air circulation in high-volume spaces. The fan?s size and airflow output are intended for areas up to 19,750 square feet.

Performance and Functional Considerations

The fan provides up to 137,000 CFM at a maximum speed of 49 RPM. Variable speed control is managed through the wall-mounted VFD controller, allowing adjustment to match changing conditions or occupancy levels.

Sound output is rated at less than 59 dBA, supporting use in environments where low noise is important. The 1.5 HP gear drive motor is designed for continuous operation in demanding settings.

Voltage compatibility includes 208-240V single-phase or three-phase, and 460-480V three-phase. Amperage draw varies by voltage and phase, with maximum values of 5.7A (208-240V, 1P), 3.90A (208-240V, 3P), and 1.8A (460-480V, 3P).

Minimum mounting requirements are 12 feet from floor to fan, 6 feet of ceiling clearance, and 2 feet of horizontal clearance from obstructions. Downrod extensions allow adaptation to different ceiling heights.

Installation and Long-Term Use

The fan is designed for mounting to I-Beams, Z-Purlins, or open joist structures. Downrod extensions in multiple lengths support installation flexibility based on ceiling height and clearance needs.

All joined components use dual-method fastening for added security. Safety cable, hub clips, and hub retainer are included as standard safety measures. The integrated sprinkler shut-off supports compatibility with fire suppression systems.

The wall-mounted VFD controller provides direct access to speed adjustment, on/off control, and safety disconnect. The fan?s aluminum blades are lightweight and corrosion-resistant for long-term durability in industrial environments.

Routine inspection of mounting hardware and safety features is recommended to maintain safe operation over time.

How This Fixture Is Commonly Used

Once installed, you can adjust fan speed directly from the wall-mounted VFD controller to match seasonal or operational needs. The variable speed function allows you to increase airflow during peak activity or reduce speed for quieter operation.

The fan?s coverage area supports even air distribution across large open spaces, helping to maintain consistent conditions throughout the facility. The low sound level allows for use in areas where noise is a concern, such as gyms or occupied workspaces.

Maintenance involves periodic checks of the safety cable, hub clips, and mounting hardware. The aluminum blades require minimal upkeep and are resistant to corrosion in most indoor environments.

Downrod extensions can be selected during installation to achieve the required mounting height and clearance, ensuring the fan operates safely and efficiently in your space.

Safety, Certifications, and Warranty

Safety features include a safety cable, hub clips, hub retainer, dual-method fastening, and integrated sprinkler shut-off. These are designed to support secure installation and safe operation in commercial and industrial settings.

The fan is supplied with a wall-mounted VFD controller that includes a safety disconnect. This allows for quick isolation of the fan during maintenance or emergency situations.

Warranty coverage is provided by LED Lighting Supply. Details are available upon request.

Frequently Asked Questions

What voltage options are supported? This fan supports 208-240V single-phase, 208-240V three-phase, and 460-480V three-phase power.

What is the maximum airflow output? The fan delivers up to 137,000 CFM.

What are the mounting options? The fan can be mounted to I-Beams, Z-Purlins, or open joist structures. Downrod extensions are available in 1 ft, 2 ft, 3 ft, and 6 ft lengths.

What is the minimum required mounting height? The minimum mounting height is 12 feet from the floor to the fan.

Is this fan covered by a warranty? Warranty coverage is provided by LED Lighting Supply.

Application Questions and Clarification

This product description reflects the provided specifications, ratings, and configuration options. For questions related to site-specific conditions, electrical compatibility, control integration, or application requirements not addressed in the provided data, our team is available to provide clarification.