Specification Sheet

232
CONSTRUCTION/SPECIFICATION CHECKLIST
Blower/Housing
• Aluminum, non-overloading, backward inclined centrifugal wheel statically and
dynamically balanced.
• Deep spun venturi inlet.
• Heavy-gauge galvanized steel housing.
• Integral inlet and outlet duct collars.
• Universal mounting - horizontal, vertical, or any angle.
• Motors and drives out of the airstream.
• Removable drive and bearing covers for easy access.
• Easy access to interior of unit with removable side panels (two per unit) with closed cell
neoprene gasketing.
• Motor, drives, wheel, shaft, and bearings removable from unit without disconnecting duct.
• Motor mount plate with integral belt tensioning device.
Shaft and Bearings
• Precision turned, ground, and polished steel fan shaft and keyed.
• Self aligning cast iron air handling pillow block bearings with re-lube tting, double sealed and
pre-lubricated, designed for 200,000 hour life, L50.
Motor and Drives
• Permanently sealed ball bearing type motor furnished to the specied voltage, phase,
and enclosure.
• Open drip-proof is standard. Two speed, totally enclosed, and explosion proof motors can be
specied for most models.
• Drives are specied for a minimum of 150% of driven horsepower. Cast iron motor pulleys are
factory set to the required RPM and are adjustable for nal system balancing.
• Disconnect switch standard on single speed drip-proof and totally enclosed motors.
Certications
• AMCA - the AMCA Seal on all units assures certied rating of air and sound performance.
• cULus - most models are available as listed by Underwriters Laboratories under Standard 705
when specied.
MODEL SQB
BELT DRIVE SQUARE INLINE CENTRIFUGAL DUCT FAN