Greenheck-fan Mixed Flow Fans Belt and Direct Drive QEI-L Manual de usuario descargar pdf (Pagina 4)

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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Greenheck-fan Mixed Flow Fans Belt and Direct Drive QEI-L Manual de usuario Pagina 4

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