Model PRN direct drive fans are centrifugal power roof ventilators designed for exhausting clean air. This model has a max CFM of 1,582. The PRN is a downblast exhauster suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings, and retail stores.

Housing

• Hoods constructed of heavy gauge aluminum, die formed with rolled bead for strength
• Curb base and inlet are one piece with continuous welded corners
• Steel fasteners are zinc dichromate plated
• Heavy gauge galvanized wire birdscreen
• Heavy gauge corner support brackets transmit motor and impeller weight to curb base
• Conduit post for ease of electrical wiring

Airfoil Centrifugal Wheel

• Aluminum construction with backward curved hollow airfoil blades
• Non-overloading design for safe operation
• Precision balanced for smooth vibration free operation

Motor

• Continuous duty motors located outside the airstream
• Motor compartment is ventilated by a "forced air" cooling system
• Factory wired with polarized disconnect plug (except explosion resistant motors)