20 Foot HVLS Ceiling Fan | 6 Blades | 10,700 Square Foot Coverage | 208-240V or 380-480V

Product Overview

This is a 20-foot diameter HVLS (High Volume Low Speed) ceiling fan designed for large-scale air movement in commercial and industrial environments. It features six aluminum blades and a PMSM motor, delivering up to 406,119 CFM at variable speed. The fan is suitable for mounting in open spaces with high ceilings, such as warehouses and manufacturing facilities, where broad air circulation is required for occupant comfort and energy efficiency.

The fan operates on either 208-240V or 380-480V, supporting both single and three-phase power. A wall-mounted VFD controller is included for precise speed adjustment. The IP55 fan rating and IP66 controller rating allow for installation in demanding environments where dust and moisture are present. Typical mounting heights range from 20 to 40 feet, depending on the facility layout and clearance requirements.

Core Performance and Output

This HVLS fan provides a maximum airflow of 406,119 CFM, covering up to 10,700 square feet per unit. The 1.5 HP PMSM motor operates at a maximum of 65 RPM, producing a low sound level of 38 dB. The six-blade design ensures even air distribution and minimizes dead zones in large open areas.

Variable speed control allows for precise adjustment to match seasonal needs and occupancy levels. At lower mounting heights, maximum speed may create excessive air movement or draft. For optimal performance, ensure adequate clearance from structural elements and overhead obstructions.

Adjustability and Control Options

The included wall-mounted VFD controller provides full variable speed adjustment. This allows operators to fine-tune airflow for different zones or changing environmental conditions. The controller is rated IP66 for protection against dust and water ingress, supporting installation in exposed or semi-protected locations.

Speed can be adjusted to balance comfort, energy savings, and noise levels. The 39-inch downrod provides standard drop for most high-ceiling installations, with custom downrod lengths available if additional clearance is required.

Longevity and Reliability

The fan uses a direct-drive PMSM motor with a 1.5 HP, 1100W rating for high efficiency and reduced maintenance compared to belt-driven systems. The aluminum blades are corrosion-resistant and designed for long-term operation in industrial environments.

Both the fan and controller carry ingress protection ratings (IP55 for the fan, IP66 for the controller) to withstand dust and moisture. The system is engineered for continuous operation in demanding commercial and industrial settings. A two-year warranty is included.

Build Quality and Physical Characteristics

This fan features a 20-foot diameter with six precision-balanced aluminum blades. The total weight is 297 lbs, requiring a structurally sound mounting point. The silver finish provides a neutral appearance suitable for most facility interiors.

The 39-inch downrod is standard for installations with high ceilings. The fan is designed for both single-phase and three-phase operation at 50/60 Hz, supporting a range of global electrical standards. All hardware is engineered for durability and ease of installation in large open spaces.

Where This Product Fits Best

This HVLS fan is intended for large, open environments where broad, even air movement is required. It is most commonly installed in facilities with high ceilings and significant square footage per zone. The fan?s coverage area and airflow output are suited for industrial and commercial buildings where occupant comfort and energy efficiency are priorities.

• warehouse ventilation
• manufacturing facility ventilation
• distribution center ventilation
• gymnasium ventilation
• aircraft hangar ventilation
• convention center ventilation
• large retail ventilation
• agricultural building ventilation

The fan?s IP55 rating and robust construction allow for use in dusty or humid environments. It is not intended for low-ceiling spaces or areas with significant overhead obstructions.

Installation and Long-Term Use

Installation requires a structurally rated mounting point capable of supporting the fan?s weight and dynamic load. The 39-inch downrod provides adequate clearance for most high-bay applications. Electrical connection supports both 208-240V and 380-480V, single or three-phase, with a dedicated circuit recommended.

Routine maintenance is minimal due to the direct-drive motor and sealed bearings. Periodic inspection of mounting hardware and electrical connections is advised. The fan and controller are designed for continuous operation in demanding environments, with ingress protection supporting long-term reliability.

How This Fixture Is Commonly Used

Typical mounting heights range from 20 to 40 feet, depending on ceiling structure and clearance requirements. Fans are spaced to provide overlapping coverage, with one unit typically serving up to 10,700 square feet. In larger facilities, multiple fans are installed in a grid pattern to ensure uniform air movement.

Operators adjust speed seasonally or based on occupancy to balance comfort and energy use. Higher speeds increase coverage but may create noticeable drafts at lower mounting heights. Fan count and placement should be planned based on obstructions, racking, and zone layout.

Safety, Certifications, and Warranty

The fan is rated IP55 for dust and water ingress. The VFD controller is rated IP66. All components are designed for use in commercial and industrial environments. The system operates at low sound levels for occupant comfort.

A two-year warranty covers the fan and controller. Installation must comply with local codes and structural requirements. Follow all safety guidelines during installation and maintenance.

Frequently Asked Questions

Q: What is the recommended mounting height for this 20-foot HVLS fan?

A: Recommended mounting height is 20 to 40 feet, depending on ceiling structure and required clearance.

Q: How much area does one fan cover?

A: One fan covers up to 10,700 square feet in open, unobstructed spaces.

Q: Can this fan be installed in humid or dusty environments?

A: Yes, the fan is rated IP55 and the controller is rated IP66 for dust and water resistance.

Q: What is the maximum airflow output?

A: Maximum airflow is 406,119 CFM at full speed.

Q: How is speed controlled?

A: Speed is controlled via the included wall-mounted VFD controller, allowing variable adjustment.

Q: How many fans are needed for a large warehouse?

A: Fan count depends on total square footage, ceiling height, and obstructions. One fan typically covers 10,700 square feet; layout should be planned for overlapping coverage in larger spaces.

Application Questions and Clarification

Q: Is this fan suitable for livestock facility ventilation?

A: Yes, this fan is commonly used in livestock facility ventilation due to its high airflow and robust construction.

Q: Can this fan be used in an aircraft hangar?

A: Yes, it is suitable for aircraft hangar ventilation and is often installed in large open hangar spaces.

Q: Is this fan appropriate for gymnasium ventilation?

A: Yes, this fan is frequently specified for gymnasium ventilation where high ceilings and large open areas are present.

Q: Can this fan be installed in a convention center?

A: Yes, it is suitable for convention center ventilation, provided mounting and clearance requirements are met.