Performance shown is certified for installation type B Free inlet, Ducted outlet.
Performance ratings include the effects of inlet grille and backdraft
damper in the airstream. Speed (RPM) shown is nominal. Performance is
based on actual speed of test.
The Sound Ratings shown are loudness values in fan sones at 5ft. (1.5m) in a
hemispherical free field calculated per AMCA Standards 301. Values shown are
for Installation Type B: Free inlet fan sone levels. The AMCA Certified Ratings
Sound Seal applies to Sone Ratings only.