Specification Sheet

342
Construction/Specication Checklist
Panel Assembly
• Heavy-gauge G90 galvanized steel panel.
• One piece spun venturi for maximum efciency.
• All welded support structure of schedule 40 galvanized pipe.
• Motor/bearing plates of minimum 10 gauge galvanized steel.
• All welds coated with cold galvanized paint.
Hood
• All heavy-gauge G90 galvanized steel.
• Low silhouette design for pleasing appearance.
• Unique design rain gutter minimizes water entrainment.
• Gutter provides additional hood strength and rigidity.
Base
• All galvanized construction for corrosion resistance.
• Secures fan unit to roof curb.
• Elevates fan unit above curb for ease of damper installation.
Propeller
• Two, three, four or six airfoil aluminum blades.
• Steel hub plate with steel taper lock busing.
• Hub nished with corrosion resistant epoxy paint.
• Adjustable pitch for optimum efciency.
Drives (belt drive models)
• Sized for minimum 150% of drive horsepower.
• Single belt adjustable pitch sheaves through 3HP.
• Two belt xed pitch sheaves through 10HP.
• Adjustable pitch sheaves are optional above 3HP.
• Adjustable tension rods for belt adjustment.
• Nonstatic oil resistant v-belts.
• Keyed, turned, ground and polished shafts.
Bearings
• Bearings designed for minimum 200,000 hour life, L50.
• Cast iron self-aligning pillow block ball bearings.
• Bearings are sealed, prelubricated with relube ttings.
Motors
• Brands are nationally recognized and locally serviced.
• Open drip-proof construction is standard.
• High-efciency, explosion proof, totally enclosed, and corrosion duty motors can be specied.
MODELS HRSB & HRSD
HOODED PROPELLER ROOF SUPPLY FANS