Icandelo labalandeli kwi-AHU libandakanya i-double inlet centrifugal fan, i-motor kunye ne-V-belt drive efakwe kwifreyimu yangaphakathi exhonywe ngokuxhonywa okuchasene nokungcangcazela kwisakhelo sangaphandle esinokutsalwa ngaphandle.Iyunithi yefeni ifakwe kwiireyili ezimbini ezinqamlezileyo ezibotshelelwe kwiyunithi yokuphatha umoya, kwaye ukuvulwa kwe-fan outlet kudityaniswe kwiphaneli yokukhupha yeyunithi ngokudityaniswa okuguquguqukayo.