17V3.15.22
DuctedInstallations–HotSideDucting
1. Ductworkmaybeattachedtotheexhaust,tothefreshairreturn,ortoboththeexhaustand
returnductadapters(recommended).Ifductingisattachedonlytooneadapter,thespace
mustbeable to provide 300CFM ofexhaustorsupply ventilation.Ifthatventilationisnot
provided,itwillputtheperformanceandlongevityoftheunitatrisk.
2. Theunitiscapableofoperatingwith100equivalentfeetoftotalductwork,or50equivalent
feetforboththeexhaustandreturnducting.Thesespecificationsarebasedon8”diameter
flexductingthatisfullyextendedtoensureasmoothinnerductwall.Elbowsorbendsmust
haveaminimumradiusof8”.Allelbows,bends,grills,andadapterswilladdtotheequivalent
length,reducingtheactuallengthavailable..Useaductsizingprogramtodeterminethetotal
equivalent feet of a specific duct routing design, or consult the manufacturer for
recommendations.
3. The“High”fanspeedsettingisrequiredwhenevertheunitisducted.