InletVanes

Caution:
Due to the size of the equipment,
reasonable care must be taken
when loading, unloading,
handling and installing the inlet
vane assembly to avoid over
stressing and possible permanent
damage to the frame and related
components by excessive racing,
skewing, twisting etc.
1. Bracketangles,isolators,and
fastenersarecommon
procurementitemstobe
suppliedbythecustomer.See
Figure11a.
2. Usinganinletvaneanglering
asatemplatedrilleight(8)
holesofC(two(2)per
quadrantinQFanframe.
AssemblewithsizeDbolts,
nutsandlockwashers.
3. Positionsupportbracketunder
inletvaneassemblyasshown.
Usebrackettodrillsix(6)
holesinangleringonflow
enteringside.Usesamedrill
andfastenersizeasabove.
4. Weldorfastencornersofthe
brackettogetherandattach
isolator(s).
5. Usetwoisolatorsforsize49
through60only.Size16
through44usesoneisolator
mountedinthecenter.

Silencer—

QFanandSuperQIIFan

PlusDuctSilencers,when
ordered,areshippedloosefrom
themanufacturerandarefield
installed.
TheymustbeconnectedtotheQ
fanusingtheflexibleduct
connectorbuttheycanbeeither
rigidorflexconnectedtothe
SuperQfans.Silencersaresized
forQFanandSuperQFan
collars.Thesupportstructurefor
silencersandflexconnectorsare
providedbytheinstaller.
Inletsilencer— hasafixedcenter
bodyandshouldbeattachedas
perabovedescription.Theairflow
arrowonthesilencershouldfollow
thedirectionoftheairflow
indicatedontheQFan.
Outletsilencer— hasamovable
cylinder.Theinnercylinderhas
eithersheetmetalscrewsoris
spotwelded.Removethesheet
metalscrewsfromthesilencer
centerbodyorbreakthespot
weldswithachiselandhammer.
Thecenterbodymustthenbe
repositionedclosetotheendcap
ofthefan(nomorethanoneinch
fromtheendcap).Securethe
silencercenterbodywithsheet
metalscrewsandconnectwiththe
fanusingconnectorsasperabove
description.
Theairflowarrowonthesilencer
shouldfollowthedirectionofthe
airflowindicatedontheQFan.
QFNA-IOM-1 19
AccessoriesInstallation
Figure11b—TypicalSilencer