Greenheck QEI-L User manual

May
2012
Mixed Flow Fans
Belt and Direct Drive
Models QEI-L, QEI, QEID

Model QEI-L – Belt Drive
• 11sizesavailable(12thru36)
• VolumeRange: 700-40,000cfm
 (1190-67,960m3/hr)
• StaticPressure:Upto5in.wg(1245Pa)
2
Quiet & Efficient, Inline
• Performanceascatalogedisassured.Allsizesare
licensedtobeartheAMCACertifiedSound(both
inletandoutlet)andAirPerformanceSeal.
• Allsizesaretestedbeforetheyleavethefactoryto
ensuretrouble-freeoperationatthejobsite.
• Compactsizeanda“UniversalMountingSystem”
maketightspaceconsiderationsandlastminute
mountingchangeseasytohandleatthejobsite.
• Thebeltdrivemodelsuseairhandlingquality
bearingsthatare100%inspectedforswiveltorque,
noiselevels,andboretolerances.
• Theseproductsaresubjectedtoextensivelifecycle
testing,assuringmanyyearsofreliableperformance.
Model QEID – Direct Drive
• 15sizesavailable(12thru54)
• 50-100%wheelwidths
• VolumeRange: 800-83,000cfm
 (1,360-141,000m3/hr)
• StaticPressure:Upto10.5in.wg(2370Pa)
Model QEI-I/II – Belt Drive
• 17sizesavailable(9thru60)
• Twoclassesofconstruction
• VolumeRange: 500-115,000cfm
 (850-195,386m3/hr)
• StaticPressure
 Upto5in.wg(1245Pa)ClassI
 Upto8.5in.wg(2120Pa)ClassII
Patented (QEI/QEID): USAPatentNo.7048499
China(P.R.)PatentNo.CN1294361C
MexicoPatentNo.243465
Typical Mixed Flow Applications:
Recommendedforanyventilationapplicationthat
requireslowsoundandhighefficiency,suchasoffice
buildings,parkinggarages,concerthalls,libraries,
andeducationalfacilities.
GreenheckFanCorporationcertifies
thatthemodelQEI-L,QEI-I/IIand
QEIDshownhereinarelicensedto
beartheAMCASeal.Theratings
shownarebasedontestsand
proceduresperformedinaccordance
withAMCAPublication211and
AMCAPublication311andcomply
withtherequirementsoftheAMCA
CertifiedRatingsProgram.
ForQEIDperformanceshowingAMCAlicenseddata
forsoundandairperformance,pleaserefertothe
QEIDSoundandAirPerformanceSupplementfound
onourwebsiteatwww.greenheck.com.
Mixed Flow Fans
Mixedflowinlinefanscanbeusedforsupply,exhaust,
orreturnairinstallations.Ourpatenteddesignexcels
incommercialapplicationswherelowsoundiscritical.
Inaddition,Greenheck’smixedflowfansaremore
efficientthancomparablysizedtubularcentrifugal
andvaneaxialfans,thusreducingtherequiredmotor
horsepowerandloweringoperatingcosts.
Greenheck’s mixed flow fans are the quietest tubular
inline fans in the industry!
See page 10 for details.
UL/cUL Listed QEI-L QEI-I/II QEID
705-Electrical   
EmergencySmokeEvacuation  
762-RestaurantGreaseExhaust 

33
Standard Construction
Housing
Tubularhousingsareconstructedofweldedsteelto
eliminateairleakage.Integralstraighteningvanesare
constructedfromsteelandweldedintoplace.
Wheel – Mixed Flow
Fabricatedwheelsareconstructedfromsteel.The
bladeprofilesareangledandcontouredforthemost
efficientandquietperformance.
Bearings (Belt Drive)
Standardbearingsarepremiumairhandlingquality,
greaselubricated,self-aligning,ballorrollertype.
Bearingsareselectedwithabasicratingfatiguelife
L10perABMAstandards,inexcessof80,000hours
(L50at400,000hours)atthemaximumoperating
speedfortheQEI-I/IIandQEI-Linthehorizontal
position.TheQEI-Lbearingsareselectedwitha
basicratingfatiguelifeL10inexcessof50,000hours
(L50at250,000hours)inverticalposition.
Bolted Access Door
Aboltedaccessdoorprovidesanopeningthrough
thefanhousingforcleaningorvisualinspectionof
thewheel.Ahingedaccessdoorisavailableasan
accessory.
Belt Guard (Belt Drive)
Atotallyenclosedbeltguardprovidesprotection
fromrotatingpulleysandbelts.Beltguardsmeet
OSHAStandards.
Slip-Fit Duct Connection (QEI-I/II & QEID)
Inletsandoutletsaredesignedwithextendedcollars
forslip-fitductconnectionsasstandard.QEI-Lis
flangedasstandard.Companionflangescanbe
orderedforslipfitconnections.
Adjustable Motor Bases (Belt Drive)
Rigid,heavy-gaugesteelmotorbasesareweldedto
thefanhousingandincludeheavy-dutyadjustment
screwsforbelttensioning.
Extended Lube Lines
Beltdriveunitshavenylonlubricationlineswith
greasefittingsthatallowbearinglubricationwithout
disassemblingthefan.Greasefittingsaremounted
ontheoutsideofthefanhousing.Directdrive
unitshaveextendedlubricationlinesforthemotor
bearings,ifrequired.Smallerframesizedmotorsare
typicallysealedandnotlubricatable.
Permatector™ Coating
Greenheck’sPermatectorcoatingisathermosetting
polyesterurethane,electrostaticallyappliedto
provideuniformthicknessandacleanappearance.
Permatectorcoatingsalsoprovideexcellent
corrosioncharacteristicsforgeneralapplications,
bothindoorandoutdoor.Forcorrosiveenvironments
(ie.coastal),seepage9forinformationonourzinc-
richbasecoattechnology.
Model Number Nomenclature
Themodelnumbercodeprovidesanumberingsystemdesignedtoidentifythefanmodel,
sizeandhorsepower.
QEI D* - 36 - I - 70 - A 30
D = Direct Drive
Percent Wheel Width
50 through 100
Fan Size
9, 12, 15, 16, 18, 20,
22, 24, 27, 30, 33, 36,
40, 44, 49, 54, 60
Motor Horsepower
4 = ¼ 30 = 3 300 = 30
3 = 50 = 5 400 = 40
5 = ½ 75 = 7½ 500 = 50
7 = ¾ 100 = 10 600 = 60
10 = 1 150 = 15 750 = 75
15 = 1½ 200 = 20 1000 = 100
20 = 2 250 = 25 1250 = 125
RPM
A = 1770 C = 870 J = 1425 M = 3600
B = 1170 F = 690 K = 950 R = 2900
Construction
L = Low Pr
essure
I = Class
I
II = Class II
3
* Blue text is specific to direct drive model QEID only
Belt Drive available in sizes 9 through 60
Direct Drive available in sizes 12 through 54
Low Pressure available in sizes 12 through 36

Value Added Features
Maintenance / Serviceable Construction Advantages
Thefollowingvalueaddedfeaturesareincorporatedintothedesigntoallowforquickand
easyfieldservice.
QEI-LandQEIserviceadvantages:
• Bearinglubricationisperformedthroughextendedgreasefittingslocatedonthe
outsideofthefanhousing.
• Theentireshaftandbearingassemblycanberemovedasasingleassemblyfrom
theinletendofthefanhousing.
• Anadjustablemotorbaseisprovidedfortighteningthefanbelts.
QEIDserviceadvantages:
• Extendedlubricationlinesareprovidedformotorbearingrequiringlubrication.
Smallerframemotorsusesealedbearingsandarepermanentlylubricated.
Electrostatic Powder Coatings
Powdercoatingsofferauniform,durableandhigh-qualityfinish.
Standardpowdercoatingisaone-coatprocessappliedover
aphosphatizedsurfacethatgenerallymeetsorexceedsthe
corrosionresistanceofacomparablewetpaint.
Greenheckoffersanumber
ofin-housecoatingsapplied
via“electrostaticpowder.”The
standardcoating,Permatector™,
isexcellentforindoororoutdoor
applicationsandisresistanceto
manycommonchemicals.Consult
Greenheck’sProductApplication
Guide,Performance Coatings for
Ventilation Products,foracomplete
listingofcoatingsandarelative
resistancechart.Forcorrosiveenvironments(i.e.coastal),seepage9
forinformationonourzinc-richbasecoattechnology.
Quality Assurance Test
Beforeshipment,allGreenheckmixedflowfansaretestedatthedesignspeedafterfinalassembly.
QEI-Lfansarecheckedforampdrawandthelevelsarerecorded.QEI-I/IIandQEIDfansare
subjectedtoacompletevibrationanalysis.ThemaximumallowablevibrationonaQEI-I/IIatthefan
bearingsis0.15in/sec.peakvelocityforthespecifiedRPM.QEIDmaximumvibrationis0.08in/sec.
peakvelocityonthefanhousingforthespecifiedRPM.Arecord
ofthevibrationtestresultisavailableuponrequest.
Byperformingthevibrationtest,weareabletoprovidemorethan
wheelbalancing,itisalsoadiagnostictoolforfindingpotential
problems.Adefectivebearingormotor,bentshaftormisaligned
sheavesmaycauseexcessivevibration.A
completevibrationtestwilluncover
theseproblemsbeforethefanleaves
thefactory.
4

5
Inlet and Outlet Sound Power Levels
AllGreenheckmixedflowfanshaveAMCAlicensedsoundpowerlevelsforboththe
faninletandoutlet.
Applicationandinstallationdetermineswhichsoundpowerreading(inlet,outlet,
orboth)iscritical.Thedifferencesbetweenthegeneratedsoundfromtheinletand
outletareimportantandnoticeable.AMCAlicensedinletandoutletsoundpower
dataprovidescompletesoundinformationtoselectafanbasedontheacoustical
requirements.Foradditionalinformationonsound,refertopage6.
AutoCAD®and 3-D Revit®Models
ScaledAutoCAD®drawingsandRevit®models
areavailablethroughGreenheck’swebsite
orfromtheGreenheckCAPSprogram
whichretrievesdrawingsandplacesthem
automaticallyintoajobfolder.
Field Rotatable Housing / Compact Size
TheQEI-LandQEIaredesignedtoaccommodatechangingfan
mountingpositionsandmotororientationinthefield.Mounting
fixturesaresecurelyboltedtothefancasingandcanberelocated
torepositionhowthefanisinstalledorthepositionthemotoris
oriented.Flexibilityinamotor’slocationisimportantforeasier
accessandcandeterminewheretheunitwillfit.Lastminute
designchangesorunexpectedobstaclesduringinstallationare
nolongeraproblem.
Greenheck’smixedflowfansweredesignedforcompactsize.
Keepingsizetoaminimumisimportantwhenfittingintotight
spaceslikemechanicalroomsorairhandlers.
Patented (QEI/QEID)
USAPatentNo.7048499
China(P.R.)PatentNo.CN1294361C
MexicoPatentNo.243465
Slip-Fit Duct Connections
TheinletandoutletendsoftheQEI-I/IIandQEIDaredesignedto
accept“slip-fit”connections.Oftencompanionflangesarebolted
toafan’sinlet/outletflangetoprovideaslip-fitconnectionfora
flexiblesleeve,aswiththeQEI-L.Thisextrastepisnoweliminated
bydirectlyattachingtheflexiblesleevetotheductandfan.This
savestimeandmoneyintheinstallationprocess.
Itisrecommendedtouseaflexiblesleeveconnectioninsteadofa
rigidductconnection.
Theadvantagesofaflexibletransitionare:
• Decreasedsoundtransmissionin
theductwork
• Flexibleconnectionsallowforminor
misalignment
• Accommodatestheuseofthrust
restraintstoresistthrustloads
5
Greenheck’sSoundLab

6
Design & Performance
Mixed Flow: Axial/Centrifugal Hybrid
Amixedflowwheelisahybridbetweenanaxialpropelleranda
centrifugalwheel.Theresultisadesignthatcombinesthebestaxial
andcentrifugalproperties:highlyefficientairmovement,increased
pressurecapabilities,extremelylowsoundlevels,andasteepfan
performancecurve.Tofurtherenhancethefan’sperformance,
straighteningvanesareincorporatedinthehousing.Theseserve
toconvertswirlingairflowintoastraightaxialflowwitharesulting
staticpressureriseandenergysavings.
60
70
80
90
100
62 125 250 500 1000 2000 4000 8000
Frequency, Hz
Sound Power, dB
30
40
50
60
70
80
14000 16000 18000 20000 22000 24000
CFM
SE
QEI
Typical Vane Axial
Typical Centrifugal
QEI-L, QEI-I/II
Typical Vane Axial
Typical Tubular Centrifugal
Typical Typical QEI-L
Tubular Centrifugal Vane Axial QEI-I/II
Sound power levels shown at each frequency:
Static Pressure
CFM
Centrifugal
Mixed Flow
Axial
Lower Sound Power, Better Sound Quality
Thesoundqualityofthebelt-drivenmixedflowfanlineis
asbeneficialtolowsounddesignasisthereducedoverall
soundpower.Thesoundchartcomparesunitsofsimilar
outertubediametersatanoperatingpointof20,000cfmwith
1.5incheswgofstaticpressure(Ps).Tubularcentrifugals
(green)havedominanttonesinthe63Hzthrough250Hz
octavebands,whilevaneaxials(red)havemoremidtohigh
frequencysound.Themixedflowfan(blue)doesnothavea
dominanttone.Abystanderwouldhearamoreblandsound
thatisquieterthanatubularcentrifugalorvaneaxial.
Sound and Efficiency
Soundpowerlevelsandfanefficiencyaretwoveryimportantfactorswhenselectingafan.Thereisanoticeable
differencebetweenimpellertypes.Thetableandchartbelowcomparethesoundpower(LwA)andthestatic
efficiencyofthebelt-drivenmixedflowfanwheelversustubularcentrifugalandvaneaxialinlinefans.Overa
widerangeofoperatingpoints,themixedflowfanprovidesthequietestandmostefficientselection.
Modelcomparisonsbasedonsimilaroutertubediameters.
Performance Mixed Flow
Fan Size
Sound Power (LwA) Static Efficiency
MixedFlow
(QEI-L,QEI-I/II)
Inline
Centrifugal VaneAxial MixedFlow
(QEI-L,QEI-I/II)
Inline
Centrifugal VaneAxial
15,000cfm
@1.0in.wg 24 90dB 100dB 103dB 43% 17% 34%
25,000cfm
@2.0in.wg 36 86dB 93dB 102dB 68% 45% 56%
50,000cfm
@4.0in.wg 49 92dB 98dB 111dB 71% 60% 59%
AxialFans:Straightthrough
nearlylinearairflow.
CentrifugalFans:Two90°
deflections,beforeairflow
exitsthefan.
MixedFlowFans:Slight
airflowdeflectionfrom
straightthrough.
Airflow Profiles
Axial Centrifugal Mixed Flow

7
Wheel Characteristics
Static Pressure
CFM
50%
Wheel
Width
50% Wheel Width
100%
Wheel
Width
100% Wheel Width
Intermediate
Wheel
Widths
Static Pressure
CFM
50%
Wheel
Width
50% Wheel Width
100%
Wheel
Width
100% Wheel Width
Intermediate
Wheel
Widths
Static Pressure
CFM
50%
Wheel
Width
50% Wheel Width
100%
Wheel
Width
100% Wheel Width
Intermediate
Wheel
Widths
Static Pressure
CFM
Class II
Class I
Belt Drive: Fan Class
ClassIandIIfanshavedifferentwheeldesignswithdifferentperformancecharacteristics.
ClassImixedflowwheelsareoptimizedforperformancesinvolvinglowpressuresandhighvolumes.ClassII
wheelsaredesignedforasteeperfancurvewithhigherpressurecapabilities.Thisisillustratedinthegraph
withthetwodifferentclasswheelsplottedatidenticalfanRPMs.
Whenselectingamixedflowfan,itcannotbeassumedthatmovingintoaClassIIfanwillproducethesame
resultsasaClassImixedflowfans.ModelQEI-LutilizesaClassIwheel.
Direct Drive: Percent Wheel Width
Directdrivemixedflowfansareoptimizedforperformancerequirementsbytheuseofpartialwidthwheels.This
isnecessarybecausethefanRPMiscommonlyfixedandidenticaltothemotorRPM.Areductioninthewidth
ofthewheel(ortheairpassage)resultsinreducedairflowcapacityandasteeperfancurve.Thisissimilarto
theeffectofareducedpitchinadirectdrivevaneaxialfan.QEIDwheelsareavailablein5%incrementsfrom
50-100%wheelwidth.
QEIDfanscanbeusedinconjunctionwithvariablefrequencydrives(VFD’s)forvariableairvolume(VAV)
systems.Intheseapplications,thewheelwidthisoptimizedtoensureefficientoperationandstable
performancethroughouttheturndownrange.VFD’sarealsousedforfinalsystembalancingandtoreducethe
airflowwhenbuildingrequirementsarereduced.Inthiscase,thefanandwheelwidthareselectedusingthe
finaldesignCFMandstaticpressure.
Sound Power versus Sound Pressure
Thesoundvaluesdisplayedontheperformancepagesareintermsofinletsoundpower(LWi A)andoutletsound
power(LWo A).Thesevaluesaretheacousticpowerradiatingfromtheinletandoutletofthefan,respectively.
Soundpressure,expressedasdBA,istheacousticpressureatapointinspacewhichcanbemeasuredwitha
microphoneorcanbeheard.Toconvertsoundpower(LwA)intosoundpressure(dBA),thefollowingcorrections
areappliedforahemisphericalfreefield.
dBA=LwA-correction DistancefromFan 3ft.(0.9m) 5ft.(1.5m) 10ft.(3.0m)
Correction 7db 11.5db 17.5db
Note:RefertoAMCAPublication303,ApplicationofSoundPowerLevelRatingsforadditionalinformationoncalculatingtypicalsoundpressurelevelsforfaninstallation.

8
Optional Features
TheSure-Aire™flowmonitoringsystemmeasuresfan
flowwithina3%accuracy.Unliketraditionalflowprobes
mountedinthefanventurithatcreateasystemeffect
hinderingfanperformance,Sure-Aire™doesnotinterfere
withairflowandwillnotimpactthefan’sairorsound
performance.Thisoptionisavailableonallmixedflowfan
modelsandshipscompletelyassembledfromourfactory.
Anelectronicspackagewithpressuretransmitterand
digitalreadoutisavailablewiththeSure-Aire™system.The
electronickitsareavailablefor50or60Hzpowersupplies
andprovidea4-20mAoutputthatcanbetiedintothe
building’sautomationsystem.
Sound Vault Housing - Radiated Sound Enclosure
Thesoundvaulthousingisanexcellentproductforfansthatwillbepositionedadjacenttoanoccupiedwork
spaceorinsoundcriticalapplications.Itlocksinradiatedsoundfromthefancasing,motoranddrives,and
minimizesvibrationtransmission.Standardconstructionincludesanacousticallylinedhousing,integralspring
isolators,andinternalflexibleconnectionsatthefan’sinletandoutlettoeffectivelyisolatethefanfromthe
system.Verticalorhorizontalmountingconfigurationsareavailable.
Why use a Sound Vault?
• Soundpowerattenuationlevelsdeterminedby
soundintensitytestsonactualunits
• Shipsfullyassembledwithfan
• Internalisolationtolimitbreakoutnoise
• Accesspanelsforinspectionoffanandmotor
• Bearinglubricationlinesextendedtooutsideof
enclosure
• Formedmountingrailswithprepunchedholes
foreasyinstallation
• AvailableonbothQEI-IandQEIDthrough
size27fans
Thistableliststheradiatedsound
reductionsfromtotalsoundpower
levelsforeachoctavebandwith
thesoundvaulthousing.
Sound Sensitive Areas
Sure-Aire™
CenterFrequencies[Hz] 63 125 250 500 1000 2000 4000 8000
AttenuationValue(dB) 13 20 25 31 34 35 36 36

99
Zinc Advantage
Optional Two-coat
Paint System
In1972,Greenhecktooktheleadasthefirstcommercialandindustrialfanmanufacturertointroduce
electrostaticpowdercoatings.Today,Greenheckcontinuestoleadbybeingthefirsttoofferasuperiorzinc-rich
powderbasecoatandpowdercoatingfinish.
Thiszinc-richbasecoattechnologyisusedextensivelyoutsidetheHVACindustrytoprotectbridgebeams,
automotivecomponentsandotherheavy-gaugesteelproducts.Now,thisadvancedtechnologyisavailableon
Greenheckweldedsteelproducts.
Greenheck’scoatingprocessstartswithaminimumoffivewashstagestotreatallcomponentspriorto
painting.Cleanerpartsresultinbettercoatingadhesionanddurability.Wethenuseanadvancedtwo-coat
powderapplicationmethodthatincludesabasecoatofzinc-richpowderandatopcoatofGreenheck’s
Permatector™orHi-ProPolyester.Thecombinationofthesetwotopcoatsoverthezinc-richbasecoatresults
inthetwo-coatings,Perma-ZandHi-Pro-Z.Theseoven-curedcoatingsprovidesuperiorcorrosionresistance
alongwithatough,uniformfinishtocombatthemostextremeconditions.
Whencomparedtoatraditionalsinglecoat
application,thebenetsofthetwo-coat
systeminclude:
•Anautomaticpowdercoatapplication
thatproducesuniformcoverageand
unmatchedpaintquality.
•Adoublecoatthicknessthatprovides
superiordurabilityandprotectionfrom
airandwater.
•Azinc-richbasecoatthatincludes
anepoxycomponentthatprovides
additionalcorrosionprotection.
•Azinc-richbasecoatthatprovides
chemicalprotectionofexposedsteel
topreventcorrosion.
Topcoat
2-3mils
BaseSteel
Standard
SurfacePreparation
4-6milsTotal
Zinc-richPrimer
(70%zinc)
Topcoat
BaseSteel
Advanced
SurfacePreparation
Theprotectionofferedbythezinc-richbasecoatsin
Perma-ZandHi-Pro-Zresultinextraordinarycorrosion
resistance.Testdatademonstratesourtwo-coatpaint
systemoffersthree(Perma-Z)andfour(Hi-Pro-Z)times
thecorrosionresistanceofothercoatingscommonly
availablewithinthefanindustry.Seetableforsaltspray
lifeforvariouscoatings.
CoatingfanswithPerma-ZorHi-Pro-Zhasreducedour
customersannualpaintmaintenancecostsbythreeto
fourtimes!
Formoreinformation,seeGreenheck’sCoatingsfor
ExtremeApplicationscatalog,availableonlineat
www.greenheck.com
One Coat Process
Two-coat Process
SaltSprayASTMB117
Hours 1000 2000 3000 4000
Permatector™
Hi-Pro Poly
Perma-Z
Hi-Pro-Z
Baked Phenolic
Epoxy Phenolic
Fluorocarbon
SaltSprayASTMB117isacomparativetest
thatindicatesthecorrosionresistanceof
powderpaintcoatings.

10
Certifications & Listings
Seismic Certification
TheInternationalBuildingCode(IBC)hasbeenadoptedatthestateandlocal
levelthroughouttheUnitedStates.Withtheadoptionofthiscode,comesthe
introductionofstandardsintendedtoimprovetheperformanceanddesignof
non-structuralsystemssubjecttoseismicevents.
QEI-I/II and QEID
• Meetthe2006IBC,2009IBC
• CaliforniaOSHPDrequirements(horizontalmountonly)OSP0223-10
• Shaketabletestedatanindependenttestfacilityinaccordancewith
ICC-ESAC156
• Allequipmentcertifiedtoworstcasescenarioseismicconditions
- Importancefactorof1.5(IP=1.5) - OccupancyCategories(I-IV)
- SiteClasses(A-F) - SeismicDesignCategories(A-F)
ConsultyourGreenheckrepresentativeorvisitgreenheck.com/seismicformoredetails.
UL 762 Restaurant Exhaust
Inlinegreaseexhaustfansareanexcellentalternativefor
kitchenapplicationswhenrooforwallmountedventilators
arenotpractical.AQEI-I/IIwithUL762greaseoptionis
designedtowithstandthedemandsofhightemperature
kitchengreaseexhaustandhigh-pressureductwashers.
A Tough Package to Beat
TheQEI-I/IIinlinegreasefanistoughtobeatwhen
packagedwithourfulllineofkitchenhoodsandgrease
extractionoptions.TakeadvantageofGreenheck’s
expertiseinprovidingatotalsolutioninkitchenventilation
equipment.
UL762isconcernedwithfansdesigned
forremovalofsmokeandgreaseladen
vaporswithairstreamtemperaturesup
to400°F.
•MeetsallUL705requirements
•UL/cULFileMH11745
UL/cULPowerVentilatorsfor
RestaurantExhaustAppliances
•Boltedaccessdoor
•Drainconnection
•MeetsrequirementsofNFPA96
 VentilationControlandFireProtection
ofCommercialCookingOperations
ListedPower
Ventilationfor
Restaurant
Exhaust
Appliances
13G3Maximum
Operating
Temperature
400°F.
UL 705 Power Ventilator
QEI-L,QEI-I/IIandQEIDmodelsareavailablewiththeUL/cUL705(UnderwritersLaboratory)listingonawide
varietyof50and60Hzmotors.ThislistingensurestheuseofULapprovedelectricalcomponents.
MotorsareavailableaseitherIEC(IP55)orNEMA(TEAOorODP)designs.IECdesign
motorsareadjustablespeeddrive(ASD)compatible,haveclassFinsulationandare
capableofwye-deltastartingwhenover5.5kW.NEMAmotorsuseacrosstheline
startingwithoptionsforASDcompatibility.Motor(IECorNEMA)using50Hzpowerhave
a1.0servicefactor,while60Hzpowerhave1.15
servicefactor.Designandconstructionoptions
formotorsincludeincreasedthermalinsulation,
overloadprotectionandextendedmotorleads.
UL/cULFileE40001
UL/cULListedPowerVentilator
UL Emergency Smoke Evacuation
QEI-I/IIandQEIDmodelsweretestedand
ratedfordesigntimeandtemperatureused
inemergencyheatandsmokeexhaust
applications.
UL/cULFileMH17511
UL/cULPowerVentilatorsforSmokeControlSystems
Rice Engineering Inc
Jeremy J. Klaas
08-08-05J
QEI-54 Class I
Mar 5, 2009 at 5:39 PM
090224 EQZ .r3d
Y
XZ
Tau Bot
psi
7880
7090
6300
5510
4720
3930
3140
2350
1560
770
-20
Results for LC 3, EQ neg Z di r (0.7*4.5)
Structural Finite Element Analysis
Seismic Design Category F
Model
Operating
Temperature
Time
Duration
ºC ºF Hours Comments
QEID 300 572 1 PerBritishSpec7346
QEI-I/II 300 572 2
QEI-I/II 260 500 4 PerIndustrialRisk
Insurers(NorthAmerica)
QEID 260 500 5
ConsultyourGreenheckrepresentativefortimeandtemperature
combinationsotherthanthoselisted.

11
Belt Drive versus Direct Drive
Example of Annual Operating Cost Savings
Forasystemperformancerequirementof25,000cfmat2.5inchesofstaticpressure(wg)thecorresponding
operatingpowerrequirementsare13.97BhpwithaQEI-Isize36and19.8Bhpforasize36tubularcentrifugalfan.
Formulas:
-Kilowatt-Hours=(OperatingPower(Bhp)x0.746xHoursofOperation)/MotorEfficiency
-OperatingCost=Kilowatt-HoursxPowerCostperkWhour
Assumptions:
-Costofelectricityis$0.09perkilowatthour
-3,120annualhoursofoperation(12hoursperday,fivedaysaweek,52weeksayear)
-93.0%motorefficiency(equaltoNEMAPremiumminimumefficiencyfor15and20hp,ODP,1725rpmmotor)
Annual Operating Cost Savings = $4,460 - $3,147 = $1,313
High Efficiencies = Lower Operating Costs
Tubular Centrifugal Fan
kW-Hours=(19.8Bhpx0.746x3120)/0.93=49,554
OperatingCost=49,554x$0.09=$4,460
QEI-I - Mixed Flow Fan
kW-Hours=(13.97Bhpx0.746x3120)/0.93=34,963
OperatingCost=34,963x$0.09=$3,147
Belt Drive Advantages
• Lowersoundlevels
• Motoroutoftheairstreamforeasyaccess
• Motorsizemaybechangedtoaccommodate
possiblefutureaircapacityrequirements
• Finalsystembalancingaccomplishedby
changingdrives
Direct Drive Advantages
• Fewerwearcomponentsandlessmaintenance,no
shaft,bearings,pulleys,orbelts
• Morecompactthanequivalentbeltdrivesize
• Motorinairstreamforincreasedmotorefficiency
andcooling
• Equalloadingbetweenmountingbrackets
• Finalsystembalancingaccomplishedbyadjusting
themotorspeed(ex.variablefrequencydriveuse).

12
Belt Drive Mounting
Configurations
Universal Mounting
QEI-I/IImodelssizes9-27andallQEI-Lmodelscanbe
mountedhorizontallyorvertically.Foreaseofinstallation,
eightmountingbracketsareweldedoneachfan.These
eightbracketsalongwithstandardmountingsupports
provideforGreenheck’sUniversalMountingSystem.
Motorpositionsareviewedfromthedischargeend.
Fig.1 HorizontalBaseMount
 Eachfanisshippedasstandardinthisarrangement.
 Motorat“A”position(12o’clock)isstandard.
Fig.2 HorizontalBaseMountwithmotorat“C”or“G”
position(3or9o’clock).Asetofoptionalmounting
railsarerecommendedforthisinstallation.
Fig.3 HorizontalCeilingHung
 Inthisinstallationthesupportscanbepositionedfor
mountingthemotorat“A”or“E”(12or6o’clock).
Fig.4 HorizontalCeilingHungwithmotorat“C”or“G”(3
or9o’clock).Asetofoptionalmountingrailsare
recommendedforthisinstallation.
Fig.5 VerticalMount
 UniversalQEIfanscanbemountedvertically(ceiling
hungorbasemount)foreitherupwardordownward
airflow.Optionalmountingrailsaresuggestedfor
anyverticalinstallation.
QEI-I/II Sizes 9-27 and all QEI-L
QEI-I/II Sizes 30-60
QEI-I/IImodels30-60areavailableinhorizontalandverticalmountingconfigurations.
Lifting lugs are provided on horizontal fans for ease of installation. Vertical units
should be lifted by the mounting brackets.
Horizontal Mounting
Horizontalmountingconfigurations,basemountorceilinghung,areprovidedwithan
identicalsupport.Themountingconfigurationcanbechangedbetweenbasemount
orceilinghunginthefield.Themotorpositioncanalsobefieldrotatedtoanyofthe
shownpositions.Motorpositionsareviewedfromthedischargeend.
BaseMount: Rigidsteelbaseprovidesstablemountingtofloorforthehousing.
 MotorPositions:A,B,C,GandH
CeilingHung: Suspendthefanhorizontallyfromtheceiling.
 MotorPositions:A,C,D,E,FandG
MountingrailsarerecommendedforhorizontalinstallationswithB,C,D,F,GandH
motorpositions.
Vertical Mounting
Verticalmountingconfigurations,upblastordownblast,areprovidedwithheavydutysteelbracketsweldedto
bothends.Thesebracketspermiteitherfloororceilingmountingonthesameunit.Optionalmountingrailsare
suggestedforanyverticalinstallationforsizes9-27.
Optional
MountingRails
Fig. 1
Fig. 3
Fig. 5
VerticalCeilingHung
VerticalBaseMount
Fig. 2
Optional
Mounting
Rails
Fig. 4
Optional
Mounting
Rails
Horizontal-BaseMount
Horizontal-CeilingHung
A
B
C
H
G
A
G
F
E
D
C

13
Roof Upblast & Spark Resistant
Construction
Roof Upblast
ModelsQEI-I/IIsizes9through54andmodelQEID
sizes12through54,areavailableinroofupblast
conguration.Theroofupblastcongurationisideal
forexhaustingcontaminantsawayfromabuildingto
preventroofdamageandre-entrainmentofexhaust
air.BothQEI-I/IIroofupblastmodelshavethehigh
temperatureULratingandcanbeusedforemergency
smokeexhaustapplications.
Standardconstructionincludesafully-weldedheavy-
gaugecurbcaptoeliminateleaks,abutterydamper
sectionforbackowprevention,andawindband
sectiontoprotectthebutterydampersfromdebris.A
completelineofroofcurbsisavailableformountingto
aroofdeck.
Spark Resistant Construction
Greenheckmixedowfansareavailablewithspark
resistantdesignssuitableforapplicationsthatinvolve
ammableparticles,fumesorvapors.Sparkresistant
constructionoptionsadheretoguidelinesdened
withinAMCAStandard99-0401-10.
QEI-I/II Spark B
Thefanwheelisconstructedofa
nonferrousmaterial(aluminum).
Anon-ferrous(aluminum)bearing
coversurroundsthedrivenbearing,
shieldingitfromtheairstream.
QEI-I/II
QEI-L Spark C
Theinletconeisconstructedof
non-ferrousmaterial(aluminum).
Anonferrous(aluminum)bearing
coversurroundsthedrivenbearing
shieldingitfromtheairstream.

14
Accessories
QEI-L QEI-I QEI-II QEID
MotorCover Aweatherproofmotorcovershieldsthemotorcomponents
fromdust,dirtandmoistureforindoororoutdoor
installations.Motorcoversalsoserveasapersonnelguards
andmeetOSHAstandards.

HingedAccessDoor Hingedaccessdoorsprovideanopeningthroughthefan
housingforcleaningorvisualinspectionofthewheel.Bolted
accessdoorisstandard.

ExtendedLife
Bearings
Airhandlingquality,flangemountedbearingsmeetabasic
ratingfatiguelifeL10perABMAstandards,inexcessof
200,000hours(L50at1,000,000)atmaximumoperating
speed.
 
CopperLubeLines
(BeltDrive)
Copperlubelinescanbeusedasareplacementfor
standardnylonlubelines. 
Flanges Inletandoutletflangeswithprepunchedholes,weldedto
thehousing,provideaneasymeansforboltedconnection
toductwork.Matchingbolt-oncompanionflangesarealso
available.
Std. 
DisconnectSwitches Toggle-typeandheavy-dutydisconnectswitchesare
availableforpositiveelectricalshut-offandsafetywhen
servicingfans.Thefollowingswitchesareavailableto
meetindividualelectricalrequirementsandcanbefactory
mountedorshippedlooseforfieldmounting.
•NEMA-1 Generalpurpose
•NEMA-3R Rainproof
•NEMA-4 Watertight
•NEMA-7&9* Class1and2hazardouslocations
*Greenheck will not factory mount NEMA-7 & 9 disconnect switches.

InletandOutlet
Guards
Removableinletandoutletguardsprovideprotection
forpersonnelandequipmentinductedornon-ducted
installations.

ExtendedWiring Electricleadsfromthemotorjunctionboxarebroughtoutto
exteriorofunit.Thisprovidesaneasymeansofconnecting
themotortotheelectricalsystem.

BeltTube Atotallyenclosedbelttubeisolatesthebeltsanddrives
fromtheairstream. 
SoundVaultHousing Seepage8formoredetailsonsoundvaulthousing.  
MountingRails Mountingrailsarerecommendedforverticallymountedfans
orhorizontalmountingwhenthemotoristobelocatedinthe
CorG(3or9o’clock)position.

Isolators Bothbasemountandhangingisolatorsareavailablein
eitherneopreneorspringmounts. 
SpecialCoatings Specialcoatingsareavailableforprotectivepurposes.
ConsultGreenheck’sProductApplicationGuide,
Performance Coatings for Ventilation Products,fora
completelistofcoatingsavailableandtheirchemical
resistance.Availableonlineatwww.greenheck.com.

SureAire™Flow
Measurement
Sure-Aireprovidesreal-timeflowmeasurementforusein
buildingautomationsystems.Foradditionalinformation,
seepage8orourSure-AireFlowMonitoringSystemcatalog
availableatwww.greenheck.com.

Availability

15
Exploded View
CompanionFlange
OutletFlange
(StandardonQEI-L)
OutletGuard
BoltedAccessDoor
(Standard)
InletGuard
SlipFitConnection
(StandardonQEI-I/II)
InletFlange
(StandardonQEI-L)
CompanionFlange
SpringBaseIsolator
NeopreneBaseIsolator
SpringHangingIsolator
MotorCover
Mounting
Rails

16
Thequickselectchartsbelowandonthefollowingpageareaconvenientmethodforsizingthefanrequiredfora
specificperformance.Coloredbandsforagivensizeineachchartrepresenttheentireoperatingrangeavailable
forthatsizeandspeed.
ForQEIDperformancepagesshowingAMCALicenseddataforsoundandairperformancepleaserefertothe
ModelQEID Sound and Air Performance Supplementfoundatwww.greenheck.com
1 5 10 50 100
12
10
8
6
4
2
0
49444036333027242220181615
1170 RPM
(60 Hz)
ModelQEID
15—49
Volume(cfmx1000)
Static
Pressure
(in.wg)
Direct Drive Selection Charts
Volume(cfmx1000)
1770 RPM
(60 Hz)
ModelQEID
12—33
1 5 10 50 100
12
10
8
6
4
2
0
Static
Pressure
(in.wg)
181615 3322 3027242012
16

17
870 RPM
(60 Hz)
ModelQEID
36—54
Volume(cfmx1000)
Static
Pressure
(in.wg)
10 20 30 40 50 100
8
6
4
2
0
444036 49 54
QEID Dimensional Data
Size Slip Fit O.D. Length* Weight**
inches mm inches mm lbs. kg.
12 17.13 435 25.0 635 100 45
15 20.88 530 25.0 635 140 65
16 23.00 584 26.0 660 170 80
18 25.38 645 29.0 737 200 95
20 27.81 706 34.0 864 250 115
22 30.88 784 35.5 902 370 170
24 34.00 864 41.5 1054 480 220
27 37.44 951 45.0 1143 570 260
30 41.63 1057
Referto
tablebelow.
860 390
33 45.75 1162 1140 520
36 50.56 1284 1360 620
40 55.75 1416 1650 750
44 61.63 1565 2190 995
49 67.75 1721 2700 1225
54 75.00 1905 3130 1420
*Lengthvarieswithmotorframesize.
RefertoLengthtableshown.
**Weightisforunitonlyanddoesnot
includemotor.
Length
Slip Fit
O.D.
Length — inches (millimeters)
Size 254/6 T 284/6 T 324/6 T 364/5 T 404/5 T 444/5 T
30 45.5(1156) 50.0(1156) 50.0(1156)
33 46.5(1181) 54.0(1372) 54.0(1372) 54.0(1372)
36 50.5(1283) 58.0(1473) 58.0(1372) 58.0(1372)
40 56.5(1435) 61.0(1549) 61.0(1549)
44 64.0(1626) 64.0(1626) 70.0(1778)
49 74.5(1892) 74.5(1892) 80.5(2045)
54 77.0(1956) 77.0(1956) 83.0(2108)

18
Airflow
Height
Height
Length
Length
Slip Fit
O.D.
Airflow
QEI Dimensional Data
QEI-L QEI Class I QEI Class II
Size
Slip-Fit O.D. Length Height Slip-Fit O.D. Length Height Length Height
inches (mm) inches (mm) inches (mm) inches (mm) inches (mm)
9NA NA NA 17.13(435) NA NA 28.5(724) 36.5(927)
12 17.5(445) 26.5(673) 37.5(953) 17.13(435) 28.5(724) 36.5(927) 30.5(775) 36.5(927)
15 21.13(537) 29.0(737) 41.5(1054) 20.88(530) 31.0(787) 41.0(1041) 34.0(864) 41.0(1041)
16 23.31(592) 31.0(787) 44.0(1118) 23.00(584) 33.0(838) 44.0(1118) 34.0(864) 44.0(1118)
18 25.63(651) 33.0(838) 46.5(1181) 25.38(645) 35.0(889) 46.5(1181) 39.5(1003) 47.5(1207)
20 28.06(713) 35.5(902) 50.5(1283) 27.81(706) 37.5(953) 50.5(1283) 41.5(1054) 50.5(1283)
22 31.13(791) 39.0 (991) 53.5(1359) 30.88(784) 41.0(1041) 53.5(1359) 44.0(1118) 53.5(1359)
24 34.25(870) 42.5 (1080) 55.5(1410) 34.00(864) 44.5(1130) 57.5(1461) 49.0(1245) 59.5(1511)
27 37.69(957) 45.0(1143) 61.0(1549) 37.44(951) 47.0(1194) 61.0(1549) 53.0(1346) 63.0(1600)
30 42.00(1067) 52.0 (1321) 64.5(1638) 41.62(1057) 54.0(1372) 65.0(1651) 60.5(1537) 72.0(1829)
33 46.13(1172) 56.5 (1435) 68.0(1727) 45.75(1162) 58.5(1486) 69.0(1753) 65.0(1651) 76.5(1943)
36 51.06(1297) 62.0 (1575) 75.0(1905) 50.56(1284) 64.0(1626) 75.0(1905) 69.0(1753) 82.5(2096)
40 NA NA NA 55.75(1416) 68.5(1740) 83.0(2108) 75.5(1918) 90.5(2299)
44 NA NA NA 61.62(1565) 74.0(1880) 89.5(2273) 80.5(2045) 97.0(2464)
49 NA NA NA 67.75(1721) 80.5(2045) 96.5(2451) 86.5(2197) 104.0(2642)
54 NA NA NA 75.00(1905) 87.0(2210) 105.0(2667) 93.5(2375) 111.0(2819)
60 NA NA NA 82.88(2105) 91.5(2324) 113.0(2870) 102.5(2604) 119.0(3023)
Airflow
Height
Height
Length
Length
Slip Fit
O.D.
Airflow
QEIQEI-L

19
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not
include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown are for inlet LWi , LWi
A and outlet LWo ,
LWo
A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet
sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to LWi
A and LWo A values only.
Performance Data
QEI-9 Class II
Performance Data
MaximumFanRPM 4000
Specification Data
MaximumMotor
FrameSize 184T
MinimumMotor
Startinghp 1/3hp .25 kW
WheelDiameter 15in. 381 mm
ApproximateWeight
(LessMotor&Drives) 170lbs. 77 kg.
MaximumBhp=(FanRPM/2671)3
OutletVelocity(FPM)=CFM/1.56
TipSpeed(FPM)=FanRPMx3.93
%WOV=(CFMx100)/(FanRPMx0.73)
Imperialdata—Metric data
CFM OV
STATIC PRESSURE (inches wg)
0.25 0.5 1 1.5 2 2.5 3 3.5 4
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
850 541 1325 0.09 1463 0.14 1709 0.25 1937 0.38 2148 0.52 2341 0.67
1000 636 1511 0.13 1633 0.18 1854 0.31 2056 0.44 2252 0.59 2432 0.75 2606 0.93 2767 1.11
1150 732 1700 0.17 1811 0.23 2013 0.37 2198 0.52 2371 0.68 2542 0.85 2700 1.03 2858 1.22 3007 1.42
1300 828 1893 0.23 1994 0.29 2177 0.44 2349 0.61 2511 0.78 2661 0.96 2817 1.15 2961 1.35 3098 1.56
1450 923 2088 0.31 2181 0.37 2351 0.53 2510 0.71 2658 0.89 2804 1.08 2940 1.28 3079 1.49 3212 1.71
1600 1019 2285 0.40 2371 0.47 2530 0.63 2674 0.82 2818 1.02 2951 1.23 3083 1.44 3207 1.66 3331 1.88
1750 1114 2483 0.50 2563 0.58 2711 0.75 2849 0.95 2981 1.16 3109 1.38 3230 1.61 3351 1.84 3466 2.08
1900 1210 2682 0.63 2757 0.72 2897 0.89 3027 1.10 3149 1.32 3271 1.56 3387 1.80 3498 2.04 3611 2.29
2050 1305 2883 0.77 2952 0.87 3084 1.06 3207 1.26 3324 1.50 3435 1.75 3549 2.00 3656 2.26 3758 2.53
2200 1401 3083 0.94 3149 1.04 3274 1.25 3390 1.45 3502 1.70 3609 1.96 3713 2.22 3818 2.50 3918 2.78
2350 1496 3285 1.13 3347 1.24 3465 1.46 3576 1.68 3683 1.92 3785 2.19 3883 2.47 3981 2.76
2500 1592 3487 1.34 3545 1.46 3657 1.69 3764 1.93 3865 2.16 3964 2.44
InletSoundPower,LWi[dBref10-12watts] OutletSoundPower,LWo[dBref10-12watts]
RPM %WOV 1 2 3 4 5 6 7 8 LWiA RPM %WOV 1 2 3 4 5 6 7 8 LWoA
1600
100 69 71 74 70 71 67 65 57 75
1600
100 76 78 78 70 71 65 63 56 76
80 71 69 72 68 68 66 62 56 73 80 77 80 77 67 68 63 58 56 74
60 70 70 71 66 63 65 61 55 71 60 80 78 76 66 66 62 58 56 73
50 72 70 71 65 63 65 61 55 71 50 82 78 77 66 66 62 58 56 73
2200
100 74 75 78 75 75 74 71 65 80
2200
100 86 86 84 77 78 74 69 64 82
80 72 71 73 72 72 71 66 60 77 80 86 85 84 73 74 70 65 61 80
60 73 72 74 70 69 70 66 60 76 60 87 85 82 73 73 69 65 61 79
50 75 73 74 70 69 70 66 61 76 50 88 86 82 74 73 69 65 61 79
2800
100 77 78 82 78 80 79 75 74 85
2800
100 88 85 87 81 83 80 75 72 87
80 77 78 77 74 75 75 71 66 81 80 87 88 85 77 79 76 71 66 84
60 78 79 78 74 74 74 70 65 80 60 91 85 86 78 78 75 70 67 84
50 78 79 79 75 74 74 70 65 80 50 92 86 86 79 79 75 70 67 84
3400
100 78 80 84 80 83 83 79 79 89
3400
100 88 88 91 84 87 85 80 78 92
80 78 81 81 77 79 79 75 71 84 80 90 88 89 80 83 81 76 71 88
60 80 82 81 77 78 78 74 70 84 60 94 87 89 82 83 80 76 72 88
50 80 82 82 79 78 78 74 70 84 50 94 88 89 83 84 81 76 72 89
4000
100 78 82 85 82 87 87 83 83 92
4000
100 88 93 96 87 91 90 85 83 96
80 79 83 84 81 83 83 79 76 88 80 94 86 92 82 87 86 81 75 92
60 82 85 84 80 82 81 78 76 87 60 95 89 92 85 86 85 81 76 92
50 82 84 85 83 82 82 78 75 88 50 95 90 92 86 88 85 81 77 92
5
3
2
1½
1
¾
½
4000
3400
2800
2200
1600
3
Static Pressure (in. wg)
Static Pressure (Pa x 100)
Volume (cfm x 100)
0 5 10 15 20 25 30
0 1 2 3 4 5
3
Volume (m /hr x 1000)
20
15
10
5
0
10
8
6
4
2
0
60% WOV
50% WOV
70% WOV
80% WOV
90% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft3
Density 1.2 kg/m3
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E

20
Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not
include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown are for inlet LWi , LWi
A and outlet LWo ,
LWo
A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet
sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to LWi
A and LWo A values only.
Performance Data
QEI-12 Class I & QEI-L
CFM OV
STATIC PRESSURE (inches wg)
0.25 0.5 1 1.5 2 2.5 3 3.5 4
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1200 764 1070 0.09 1241 0.15 1549 0.30 1823 0.49
1500 955 1257 0.13 1399 0.20 1661 0.37 1907 0.57 2137 0.79 2341 1.03
1800 1146 1461 0.19 1575 0.27 1807 0.46 2020 0.67 2228 0.91 2423 1.16 2607 1.43 2776 1.72
2100 1337 1669 0.27 1763 0.36 1967 0.56 2162 0.80 2341 1.04 2523 1.31 2690 1.60 2858 1.90 3016 2.22
2400 1528 1881 0.38 1966 0.48 2139 0.69 2317 0.94 2484 1.21 2640 1.49 2801 1.79 2954 2.11 3099 2.44
2700 1719 2095 0.51 2172 0.62 2323 0.85 2479 1.11 2636 1.40 2785 1.71 2926 2.02 3067 2.35 3208 2.70
3000 1910 2310 0.68 2382 0.79 2514 1.04 2657 1.31 2799 1.62 2938 1.94 3072 2.28 3201 2.63 3322 2.98
3300 2101 2527 0.88 2593 1.00 2716 1.26 2840 1.55 2969 1.86 3100 2.21 3226 2.57 3348 2.94 3467 3.32
3600 2292 2745 1.11 2806 1.25 2922 1.53 3029 1.82 3150 2.16 3265 2.50 3387 2.88 3503 3.28 3615 3.68
3900 2484 2964 1.39 3021 1.54 3129 1.84 3231 2.15 3335 2.49 3446 2.86 3551 3.23 3665 3.65 3772 4.08
4200 2675 3184 1.71 3237 1.87 3338 2.19 3435 2.53 3527 2.87 3630 3.25 3731 3.65
4500 2866 3404 2.08 3453 2.25 3549 2.59 3641 2.95 3729 3.31
InletSoundPower,LWi[dBref10-12watts] OutletSoundPower,LWo[dBref10-12watts]
RPM %WOV 1 2 3 4 5 6 7 8 LWiA RPM %WOV 1 2 3 4 5 6 7 8 LWoA
1400
100 77 78 71 73 67 68 61 52 75
1400
100 87 83 75 74 72 71 63 59 78
80 77 78 69 68 65 64 60 52 72 80 87 81 74 71 70 68 62 58 76
60 78 78 68 65 62 61 60 52 70 60 88 82 74 70 68 67 62 59 75
50 78 77 68 64 62 60 60 52 69 50 89 81 73 70 67 66 62 59 74
2000
100 78 78 78 79 75 75 73 59 82
2000
100 84 84 80 80 80 77 75 64 84
80 74 77 76 75 71 72 66 58 78 80 84 84 77 77 77 75 69 64 81
60 74 76 75 71 68 68 64 58 75 60 85 84 76 75 74 71 67 64 79
50 76 77 75 70 67 67 63 58 74 50 87 84 76 75 7 3  70 66 64 79
2600
100 83 82 80 80 78 77 83 68 86
2600
100 90 93 83 82 83 80 82 72 89
80 80 82 81 78 75 76 74 65 82 80 92 90 81 79 82 79 75 69 86
60 79 81 79 76 73 74 70 65 80 60 90 89 81 79 79 77 73 69 84
50 81 81 79 75 72 73 69 65 79 50 91 90 81 78 78 76 71 70 84
3200
100 85 85 82 82 81 80 87 79 90
3200
100 93 95 88 85 86 83 86 81 92
80 82 85 83 81 79 78 79 70 86 80 94 92 85 82 85 82 80 74 89
60 83 85 82 81 77 77 74 70 84 60 93 92 85 82 83 81 77 74 88
50 83 84 82 81 77 77 74 70 84 50 95 93 86 81 83 80 76 74 88
3800
100 86 87 85 86 86 84 88 91 95
3800
100 93 94 93 90 90 88 87 92 97
80 80 87 83 83 82 80 80 74 88 80 93 92 89 85 87 84 83 77 92
60 85 88 85 85 80 79 77 74 87 60 96 93 89 85 87 84 81 77 91
50 84 87 84 86 81 80 78 74 88 50 97 94 90 85 87 84 81 77 92
3800
3200
2600
2000
1400
1½
7½
2
3
5
1
¾
½
3
Static Pressure (in. wg)
Static Pressure (Pa x 100)
Volume (cfm x 1000)
0 1 2 3 4 5 6
0 2 4 6 8 10
3
Volume (m /hr x 1000)
20
15
10
5
0
10
8
6
4
2
0
50% WOV
60% WOV
70% WOV
80% WOV
90% WOV
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
RPM
BHP
% WOV
Density 0.075 lb/ft3
Density 1.2 kg/m3
Performance Data
Maximum
FanRPM
QEI-L 3800
QEI 3800
Specification Data
Maximum
Motor
FrameSize
QEI-L 184T
QEI 184T
MinimumMotor
Startinghp 1/3hp .25 kW
WheelDiameter 15in. 381 mm
ApproximateWeight
(LessMotor&Drives)
QEI-L 120lbs. 55 kg.
QEI 160lbs. 73 kg.
MaximumBhp=(FanRPM/2301)3
OutletVelocity(FPM)=CFM/1.56
TipSpeed(FPM)=FanRPMx3.93
%WOV=(CFMx100)/(FanRPMx1.34)
Imperialdata—Metric data