10" and 14" Max-Fan are speed controllable
Performance certified is for installation type D - Ducted inlet, The sound ratings shown are for loudness values in
Ducted outlet. Performance ratings do not spherical sones at 5ft. (1.5m) in a spherical free field
include the effects of appurtenances (accessories). calculated per Annex B of AMCA 311. Values
shown are for installationType D : Ducted inlet spherical
sone levels. Ratings do not inlcude the effect of duct end
correction. All sone values shown are calculated at 0.1"
(static pressure in inches W.G.).
* Speed (RPM) shown is nominal. Performance is
based on actual speed of test.