Greenheck QEI-L - Value-Added Features and Maintenance; Quality Assurance and Serviceability

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.
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