Model PRN - Centrifugal Roof/Wall Fans

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Model PRN direct drive fans are centrifugal power roof ventilators designed for exhausting clean air. Capacities range from 113 to 2770 CFM and up to 1 inch static pressure. The PRN is a downblast exhauster suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings, and retail stores. Model PRN direct drive fans are centrifugal power roof ventilators designed for exhausting clean air. Capacities up to 2770 FM and up to 1 inch static pressure. The PRN is a downblast exhauster suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings, and retail stores.

Construction Features

  • 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

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