Reply by ChrisK

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Posted on Air cleaner fan flow reduction

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1946 posts in 3049 days

#1 posted 03-16-2012 01:03 PM

A VFD might work with motor set to the highest speed. Can see how the speed selector works? Is it switching the motor windings or is it a simple VFD. A diffuser on the outlet will help but it has to be long for air to follow the shape and start to slow down. The length should be at least 10 times the width of the opening.

Messing with the blower fan may cause the unit to become unbalanced, not good for the bearings.

-- Chris K

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