Centrifugal Roof-Mounted Exhaust Fans

Model GB Belt Drive Roof-Mounted Centrifugal Downblast Exhaust Fan

• Designed for general clean air exhaust applications
• Aluminum, backward-inclined, non-overloading centrifugal wheel
• Wheel cones carefully matched to venturi
• Each wheel is robotically welded and statically and dynamically balanced for long life and quiet operation
• Factory-mounted NEMA-1 switch
• 100% Factory-tested bearings
• Precisely sized, ground and polished fan shaft
• Aluminum motor cover
• Easy access to motor compartment and drive assembly
• Positive motor cooling with fresh air
• True vibration isolators with no metal-to-metal contact
• Belts, pulleys and keys are oversized to 150% of driven horsepower
• Machined cast pulleys are adjustable for final system balancing
• Static-free, oil-resistant belts
• Heavy-gauge aluminum lower wind band with formed edges
• 1-Piece aluminum curb cap with integral deep spun venturi and pre-punched mounting holes
• Internal conduit chase
• Permanent stamped aluminum nameplate for exact model and serial number identification
• Galvanized birdscreen
• 1-Piece, heavy-gauge aluminum fan shroud with rolled bead for extra strength directs exhaust air downward
• Suffixes: options
• 4 = 1/4 hp
• 3 = 1/3 hp
• 5 = 1/2 hp
• 7 = 3/4 hp
• 10 = 1 hp
• X = Listed to UL/cUL 705
• AMCA Certified
• cULus Listed
• 1-Year limited warranty from date of shipment

 

 

* Sone ratings given for 0"wg static pressure, maximum motor horsepower.