Specification Sheet

362
CONSTRUCTION/SPECIFICATION CHECKLIST
Panel Assembly
• Heavy-gauge G90 galvanized steel panel on all sizes.
• One piece venturi for maximum efciency.
• Welded and bolted support structure of schedule 40 galvanized pipe.
• Motor/bearing plates of heavy-gauge galvanized steel.
• Lifting eyes standard for ease of installation.
Windband/Buttery Dampers
• Heavy-gauge galvanized steel windband.
• Galvanized steel buttery dampers standard.
• Galvanized rain channel drains water from damper area to roof.
• Corrosion resistant.
Propeller (Model UBS)
• Steel hub plate with steel taper lock bushing.
• Die formed, heavy-gauge, epoxy coated, steel blades.
Propeller (Model UBS-P)
• Plastic airfoil propeller
• Size 24 has a glass reinforced polyamide, industrial quality propeller
• Sizes 30-60 have a glass reinforced polypropylene propoller
• Blades are pitched for optimum efciency
Drives
• Sized for minimum 150% of drive horsepower.
• Single belt adjustable pitch sheaves through 3HP.
• Two belt xed pitch sheaves on 5HP and 7 1/2HP units.
• Adjustable tension rods for belt adjustment.
• Nonstatic oil resistant V belts.
• Keyed, turned, ground and polished shafts coated with an anti-rust compound to resist corrosion.
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.
MODEL UBS & UBS-P
BELT DRIVE UPBLAST PROPELLER ROOF EXHAUSTERS
OPTIONS/ACCESSORIES
Roof Curb: Prefabricated heavy-gauge galvanized steel, welded construction, 12’’ high with 1 - 1 / 2’’ wood
nailer. Options include burglar bars, single and double pitch construction, and additional curb heights.
Outlet Guard: 1/2” x 1” wire mesh guard will prevent birds and other objects from entering fan.
Disconnect Switch: Nonfused safety disconnects are available for all motor sizes in rain-tight or open enclosures. Explosion
proof, Nema4 and 4X are also available.
Magnetic Latches: Help reduce buttery damper chatter when the units are not in operation.
Cushion Close: Allows buttery damper doors to close quietly.
Safety Basket Guard: ½ x 1” galvanized wire. Guard extends into roof curb. Important: For all nonducted applications, the
manufacturer recommends that a safety basket guard must be installed as a safety precaution for personnel below unit.
Extended Grease Lines: Extended nylon grease lines allow fan bearings to be relubricated from the exterior of the fan housing.