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Part #455308
Centrifugal Utility Fans
®
Model SWB - Series 100, 200 and 300
Models SFB and SFD
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference . Read carefully before attempting to assemble,
install, operate or maintain the product described . Protect yourself and others by observing all safety
information . Failure to comply with instructions could result in personal injury and/or property damage!
Model SWB Model SWB Model SWB
Seri
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Motor and Drive Installation Instructions Model SWB units are shipped from stock without motors or drives . 1 . Adjust motor pulley to its closed position for maximum fan speed or increments of 1/2 turn open (maximum of 5 turns open) for reduced fan 4 . Install shaft pulley to fan shaft . speed . Tighten set screw on flat area only . 5 . Install drive belt(s) . Belts should not be forced 2 . Install motor pulley to the motor shaft and install over pulleys . Align motor and shaft pulleys wit
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Installation Affect of Installation on Performance Inspect the unit for any damage and report it to Restricted or unstable flow at the fan inlet can cause the shipper immediately . Also, check to see that all pre-rotation of incoming air or uneven loading of the accessory items are accounted for . fan wheel, yielding large system losses, increased sound levels and structural failure of the fan wheel . Move the fan to the desired location and fasten Free discharge or turbulent flow in the di
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Alignment of Pulleys and Belts Installation of UL/cUL 762 Listed Check pulleys and belts for proper alignment to avoid Fans for Restaurant Exhaust unnecessary belt wear, noise, vibration and power The UL/cUL 762 listing for restaurant exhaust is loss . Motor and drive shafts must be parallel and available on Series 200 and 300 SWB fan model pulleys in line as shown below . sizes 206 - 224 and 327 - 349 with a weatherhood . UL/cUL 762 fans are listed for a maximum operating temperature of
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n n n o o o i i i t t t a a a t t t o o o n n n o o o R R R i i i t t t a a a t t t o o o R R R n n n n n n io io io io io io t t t t t t Backward Inclined These are the original drawings on the Illustrator file when I opened it. The IOM had the wheel layered on top of the scroll. I will incorporate the wheel on the scroll without creating an additional Airflow layer in the InDesign file. On belt drive units, centering can be accomplished Wheel Rotation by (a) loosening the inlet cone bolts to
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• Lubrication interval is based on 12 hour per Blower Maintenance (Belt Drive) day operation and maximum 160°F housing Belts tend to stretch after a period of time . They temperature . For 24 hour per day operation, the should be periodically checked for tension and wear . interval should be cut in half . When replacing belts, use the same type as supplied • Lubricant should be added with the shaft rotating with the unit . Replacement of belts should and until clean grease is seen pur
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Parts List 1 4 7 6 5 12 8 2 3 9 10 11 14 12 13 Always provide the unit model and serial number when requesting parts or information. Replacement Parts 1 . Scroll housing 6 . Drive frame assembly 11 . Motor pulley 2 . Drive frame - base angle 7 . Pillow block bearings 12 . Belt tensioning bolts 3 . Intake support panel 8 . Fan shaft 13 . Motor plate 4 . Inlet ring and cone 9 . Shaft pulley 14 . Motor 5 . Wheel (specify rotation) 10 . Belt Centrifugal Utility Fans 7 ®
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Troubleshooting Problem Cause Corrective Action Adjust wheel and/or inlet cone . Tighten wheel hub or bearing Wheel Rubbing Inlet collars on shaft . Tighten sheaves on motor/fan shaft . Adjust belt tension . Align V-Belt Drive sheaves properly (see page 4) . Replace worn belts or sheaves . Excessive Noise Replace defective bearing(s) . Lubricate bearings . Tighten Bearings collars & fasteners . Clean all dirt off wheel . Check wheel balance, rebalance in Wheel Unbalance place if necessary .
