Trane QFNA-IOM-1 Fan User Manual


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ProvideaFoundation
Mostunitswillbemountedtoor
hungfromaconcretestructure.If
mountedtoasteelstructure,the
mountingstructureshouldbe
welded.Table2referstounit
weights.
IsolatetheFan
Isolationshouldbeusedto
preventnoiseandvibrationfrom
beingtransmittedtothebuilding.
Arrangement9: Forunitssize
16-44,ClassIandII
Mountdirectlytofourflexible
isolatorsforeitherfloororceiling
mounting.Userailsforwall
mounting.Forvertically-mounted
fans,providemountinglegsto
whichisolatorsaremounted.
Arrangement9: Forunitssize
49-60,ClassIandII
Mountdirectlytoeightisolators
whenusedwithasteelor
concretebase.Eightboltsare
usedtomountthefantothebase
inholespre-drilled.Thesesizes
mustbemountedhorizontally.
Whenceilingsuspensionis
required,thefanmustbeseton
anintegralbasewhichishung
fromtheceiling.
Arrangement1: Forunitssize
27-44,ClassIandII
Useanintegralsteelorconcrete
baseratherthanindividual
isolators.Mountthefan
horizontallyasshowninFigure2.
Arrangements1and9:For
unitssize16-44,ClassIll
Providearigidintegralsteelbase
or,preferably,aninertiapad.
Mountthesefanshorizontally.
Note: Forsomeapplications
involvinglargefansandhigh
pressures,thrustrestraintsmay
berequired.Whenused,mount
themonthefansexteriorframe
membersatthehorizontal
centerline.
Clearances
Allowsufficientclearancearound
theequipmenttoprovideample
roomforservicingand
maintenance.Inletscreenmaybe
usedifthefanhasanunducted
inlet.Recommendedminimum
clearanceisnolessthan1/2the
fanwheeldiameterawayfroma
wallorobstruction.
Installation—QFan
10 QFNA-IOM-1
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