Specification Sheet

420
CONSTRUCTION/SPECIFICATION CHECKLIST
Fan Housing
• Heavy-gauge rolled galvanized steel construction.
• Integral inlet and outlet anges with mounting holes.
• Continuous welded and epoxy coated.
• Eight mounting supports welded to each fan.
• Rolled steel ange reinforcement on each end.
Propeller (Sizes 12 - 18)
• Polypropylene blades.
• Steel bushing.
• Blades are pitched for optimum efciency.
• Statically and dynamically balanced.
• Aluminum blades are optional (by special quote only).
Propeller (Sizes 20-48)
• Three, ve or six wing airfoil aluminum blades.
• Steel or aluminum hub plate with steel bushing.
• Blades are pitched for optimum efciency.
• Statically and dynamically balanced.
• Polypropylene blades are optional (by special quote only).
Motors
• One year motor warranty.
• Brands are nationally recognized and locally serviced.
• Open drip-proof construction is standard.
• Premium-efciency, explosion proof, totally enclosed fan cooled (TEFC) and corrosion duty motors
can be specied.
Certications
• cULus 705 Listed.
• AMCA Air Licensed.
Entire Fan Unit
• Factory assembled and tested prior to shipment for quality assurance.
MODEL TDD
DIRECT DRIVE TUBEAXIAL DUCT FAN