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
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)
Options/Accessories
- Roof Curbs
- Dampers
- Solid State Speed Controllers
- Coatings
- Disconnect Switch
- Aluminum Birdscreen
