Centrifugal Fan

Original Instruction Manual INSTRUCTION MANUAL

Instructionmanual

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Figures .................................................................................................................................................................. 3English ................................................................................................................................................................... 7

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W2 U2 V2 W2 U2 V2 W2 U2 V2 W2 U2 V2

U1 V1 W1 U1 V1 W1 U1 V1 W1

L1 L2 L3

W2 V2U2

U1 U5 V1 V5 W1 W5

W2 W5 U2 U5 V2 V5

U1 V1 W1

U5 W2 V5 U2 V2 W5

W2 W5 U2 U5 V2 V5YY connection 230 V ∆∆ connection 230 V

L1 L2 L3

Y connection 460 V

U1 V1 W1L1 L2 L3

U1 V1 W1U1 V1 W1

L1 L2 L3

∆ connection 460 V

W2 U2 V2W2 W5 U2 U5 V2 V5

U1 V1 W1U1 V1 W1

L1 L2 L3

∆ connection 380 V

Figures1

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MOUNTING INSTRUCTION Vibration absorber

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4

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Standard outlet position.

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Example of lifting CF fans.

Minimum installation distances with intake pipe.

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Minimum installation distances with open intake.

Delta connection with a single-speed motor.

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Star connection for single-speed motor.

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Table of contents

EnglishInstructionmanual

1 Preface..............................................................................................................................................................................8

2 Safety.................................................................................................................................................................................82.1 Installation.......................................................................................................................................................82.2 Risksinvolvedinincorrecthandlingoruse...................................................................................92.3 Otherrisksrelatedtofans......................................................................................................................102.4 Specificrisksinvolvedintransportandinstallation.................................................................102.5 Specificrisksinvolvedinfanmaintenance....................................................................................11

3 Description.....................................................................................................................................................................113.1 Technicalspecifications............................................................................................................................11

3.1.1Technicaldata50Hzfans(metric).........................................................................................113.1.2Technicaldata60Hzfans(metric).........................................................................................123.1.3Technicaldata60Hzfans,380V(metric)..........................................................................133.1.4Technicaldata60Hzfans(imperial).....................................................................................13

4 Installation......................................................................................................................................................................144.1 Deliverycheck...............................................................................................................................................144.2 Generalinformation..................................................................................................................................14

4.2.1Fanorientation.................................................................................................................................144.2.2StandardfanoutletpositionforCFfans............................................................................14

4.3 Transportandinstallation.......................................................................................................................144.3.1Transportandlifting......................................................................................................................144.3.2Storageinawarehouse...............................................................................................................154.3.3LiftingCFfans.....................................................................................................................................15

4.4 Installation.......................................................................................................................................................154.4.1Minimumdistancesbetweencomponents.....................................................................164.4.2Connectionstopipes....................................................................................................................164.4.3Electricalconnections...................................................................................................................164.4.4Deltaconnections...........................................................................................................................164.4.5Starconnections..............................................................................................................................16

4.5 Checkstobemadebeforeandafterstarting..............................................................................174.5.1Preliminarychecks..........................................................................................................................174.5.2Checkstobecarriedoutwiththefanrunning...............................................................17

4.6 Malfunctionsanfcauses........................................................................................................................17

5 Maintenance.................................................................................................................................................................185.1 Checkingandcleaningpartsincontactwiththefluid............................................................185.2 Disassembly....................................................................................................................................................19

5.2.1Intakenozzles....................................................................................................................................195.2.2Housing.................................................................................................................................................195.2.3Fanrotor...............................................................................................................................................19

5.3 Technicalenclosures..................................................................................................................................205.4 Spareparts......................................................................................................................................................205.5 Recycling...........................................................................................................................................................21

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1 PrefaceReadthismanualcarefullybeforeinstallation,useandserviceofthisproduct.Replace the manual immediately if lost. IAP reserves the right, withoutprevious notice, to modify and improve its products includingdocumentation.ThisproductisdesignedtomeettherequirementsofrelevantECdirectives.Tomaintainthisstatus,allinstallation,maintenanceandrepairistobedonebyqualifiedpersonnelusingonlyIAPoriginalsparepartsandaccessories.ContactIAPforadviceontechnicalserviceandobtainingspareparts.Ifthereareanydamagedormissingpartswhentheproductisdelivered,notifythecarrierandyour IAPrepresentativeimmediately.

2 SafetyThisdocumentcontainsimportantinformationthatispresentedeitherasawarning,cautionornote:

WARNING! Risk of personal injury.Warningsindicateapotentialhazardtothehealthandsafetyofpersonnel,andhowthathazardmaybeavoided.

CAUTION! Risk of equipment damage. Cautionsindicateapotentialhazardtotheproductbutnottopersonnel,andhowthathazardmaybeavoided.

NOTE! Notescontainotherinformationthatisimportantforpersonnel.

2.1 Installation

WARNING! Risk of personal injury.Thesafetymeasuresadoptedforusingthefanmustalsobetailoredtosuitthespecificapplicationsforwhichthefanwillbeused.Thesafetymeasurestakendifferdependingonthetypeoffaninstallation.Therefore,theinformationinthismanualisindispensablefortheappropriateandhazard-freeuseofthefan.

Therearefourpossibleinstallationtypes,incompliancewithUNI10615specifications:

• TypeA:openintakeandoutlet.• TypeB:openintakeandoutletconnectedtoapipe.• TypeC:intakeconnectedtoapipeandopenoutlet.• TypeD:intakeandoutletconnectedtoapipe.

ClearlyIAPcannotbeawareofwhichofthesefourinstallationtypeswillbeusedbytheuser.Therefore,theinstallerorendclientthemselvesmustanalyzetherisksinvolvedforthechoseninstallationtypeusedinthespecificapplication.

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Dependingontheapplicationsthattheclientintendstousethefanforinthefactoryandonthetypeofinstallationchosen,thefollowingsafetyshieldsmustbefitted:

• TypeAinstallation:fixedshieldsattheintakeandoutlet.• TypeBinstallation:shieldfittedonlyattheoutlet.• TypeCinstallation:shieldfittedonlyattheintake.• TypeDinstallation:noshieldateithertheintakeoroutlet.

Theshieldingmustbeconstructedtoimpedeaccesstothepartsofthefanthatcouldcauseinjury.Itmustberobustlybuiltenoughtostandthevibrationsandstresscausedbythemachineandbyenvironmentalconditions.Itmustbesecurelyfixedinpositionbydevicesthatwillnotbecomeloosenedbyvibrationsandthatcannotberemovedwithouttheuseoftools.

Itis,inanycase,thepersoninstallingthefanwhoisresponsibleforensuringthatadequatemeasureshavebeentakentopreventaccidentalcontactwiththefan’smovingparts.

Theinstallerandtheusermustalsotakeintoaccountothertypesofriskspresent,inparticularthosecausedbyforeignmatterenteringthefanandtheaspirationofexplosive,inflammableortoxicgasesathightemperatures.

Theusermustalsobearinmindtherisksinherentinmaintenancework,whichmustalwaysbecarriedoutinconditionsoftheutmostsafety,withthefanseparatedfromthemotororisolatedusingsuitableequipment.

Oncetheinstallerand/oruserhasdecidedwhichinstallationtypeistobeusedandalltheaboveprocedureshavebeenapplied,themachinecannowbeconsidereda“completemachine”asdescribedbymachineuseregulations.Anoverallriskevaluationmustbemade.

2.2 Risks involved in incorrect handling or use• Never,foranyreasonwhatsoever,disable,remove,modifyorrenderinoperativeinanyotherwayanyofthesafety,protectiveorcontroldevicesofanysinglecomponentorofthefanitself.

• Neverplacehands,armsoranyotherpartofthebodynearanymovingpart.

• Neverextendanypartofthebodypastthelimitsofthesafetybarriers.Donotuseanymeansthatwillincreasenormalaccessibilitytothefancomponents.

• Neverusethefaninatmosphereswherethereisariskofexplosion.• Unauthorizedoperatorsmustnotattempttorectifyanymalfunctionofthefanand/ormodifythefunctionalcharacteristicsorandinstallationtype.

• Afteranyunprogrammedmaintenanceoperationthatrequiredtheremovalofshields,barriersoranyotherprotectivedevice,beforerestartingthefanensurethatallthesecomponentshavebeenrefittedandarefullyfunctional.

• Allprotectiveandsafetydevicesmustbekeptinperfectworkingorderatalltimes.Allindicativeandwarningplatesfixedtothefanmustalso

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bekeptinperfectconditionatalltimesandmustneverberemovedormovedfromtheiroriginalposition.

• Whentroubleshootingforthecauseofanymalfunctionofthefan,ensurethatallprecautionsdescribedinthismanualhavebeentakentopreventpersonalinjuryand/ordamagetoproperty.

• Remembertotighteneveryscrew,boltandlockringofeverycomponentsubjecttoadjustmentormaintenance.

• Beforestartingthefan,ensurethatallsafetydeviceshavebeencorrectlyinstalledandareinperfectworkingorder;iftheaboveisnotthecase,donotstartthefanandinformtheheadofsafetyordepartmentmanagerimmediately.

• TheoperatormustbeequippedwithPersonalprotectionEquipmentsinaccordancewithcurrentlegislation;theuseofbulkyclothingandaccessories(ties,loosesleeves,etc.)isprohibited.

2.3 Other risks related to fansThefollowingisalistofspecifichazardsrelatedtothefan’smechanicalcharacteristics.

WARNING! Risk of personal injury.Apersonmayreceiveinjuriesasaresultof:• Becomingcaughtupbetweenamovingpartandastationarypart,forexample,betweenafanrotorandthefanhousingoranyotherstationaryfancomponent.

• Becomingcaughtupbetweentwomovingparts,forexample,betweenabeltandapulley.

• Suctionofapartofthebodyintothefanandsubsequentcontactwiththeshaftorrotor.

• Contactwithamovingpart,suchastherotor.

• Anobjectbecomingsuckedintotheintakeofthefanandexpelledathighspeedfromtheoutletofthefan.

• Contactwithsurfacesofthefanatdangeroustemperatures,forexample,temperaturesbelow-20°Corabove+50°C.

• Hazardscausedbytheoverspeedofafancomponent,whichcanleadtothebreakageofpartsofthemachine.

• Theaspirationofairattemperaturesabovethespecifiedoperatingrange,whichcanleadtothedeformationandbreakageofthehousing.

2.4 Specific risks involved in transport and installation• Beforeinstallation,theusermustprepareaperfectlylevelsurfaceontowhichthefanwillbemounted.Ifthissurfaceisnotperfectlylevel,thiscancauseabnormalvibrationsinthefan.Thiscan,overtime,leadtothedeformationand/orbreakageoffancomponentswiththesubsequentexpulsionatspeedofbrokenparts:theseexpelledpartscancauseevenfatalinjuriestoanypersonsexposed.

• Beforeinstallation,theusermustalsoprepareadequateconnectionstoearthforthefancaseorforthefanstructuretopreventthebuild-upofelectrostaticcharges.

• Allinstalledprotectivedevicesmustremainfixedtothefantogetherwiththeirrespectivefixings(screws,bolts,etc.).Theremovalofoneor

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morefixingmaycompromisethefunctionalityandtightnessofthesafetyshield.

• Initsstandardform,thefanisnotintendedforuseinapotentiallyexplosiveenvironment.

• Theinstallationlocationofthefanmustbekeptcleanatalltimes.Anyeventualoilorwaterspillagesnotcausedbythefanmustberemovedimmediately.

• Theminimuminstallationdistancesspecifiedinthemanualmustalwaysberespectedtoensurecorrectfunctionalitywithoutanyfurtherhazards.Theincorrectpositioningofacomponentcancompromisethefunctionalityofthefan.

2.5 Specific risks involved in fan maintenance• Duringmaintenanceandcleaningofthefanrotor,beparticularcarefuloftherotor.Thiscanleadtopartsofthebodybecomingtrappedandseriouslyinjuredbetweentherotoritselfandfixedpartsofthefanhousing.

• Evenwhenthefanisdisconnectedfromthepowersupply,therotatingpartscanstillturnduetoanyairmovementthroughthefan.Thisairflowmaybenaturalormaybecausedbythecurrentinducedbyanotherfaninstalledelsewhereintheconnectedtubingsystem.Thiscanalsoleadtopartsofthebodybecomingtrappedandseriouslyinjuredbetweentherotoritselfandfixedpartsofthefanhousing.

• Afanmaintenanceprogrammustbedrawnupandfollowedtopreventthemechanicalfailureorbreakageduetowearorinsufficientmaintenance.

3 Description

3.1 Technical specifications

3.1.1 Technical data 50 Hz fans (metric)Seealsofigure2.

Table3-1:Technicaldata50Hzfans(metric)

CF 30/15 CF 120/15 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/25 CF 160/25

Capacity(m3/h) 1100 - 4400 5700 - 14400 1700 - 6500 2000 - 6700 1800 - 5900 2300 - 9100 3500 - 12400 4600 - 17900

Totalpressure(Pa)

1840 - 700 2520 - 740 2440 - 920 3440 - 1410 4550 - 1690 3070 - 1150 4500 - 2000 5030 - 1880

Motorpower(kW)

2,2 7,5 4 5,5 5,5 7,5 15 18,5

Speed(rpm) 2880rpm 2930rpm 2905rpm 2925rpm 2925rpm 2930rpm 2940rpm 2940rpm

Voltage(V)Current(A)

230Δ/400Y 7,9/4,55

230Δ/400Y24,0/13,8

230Δ/400Y13,6/7,8

230Δ/400Y 17,9/10,3

230Δ/400Y 17,9/10,3

230Δ/400Y 24,0/13,8

230Δ/400Y 230Δ/400Y

Voltage(V)Current(A)

400Δ/690Y 13,8/8,0

400Δ/690Y 7,8/4,5

400Δ/690Y 10,3/6,0

400Δ/690Y 10,3/6,0

400Δ/690Y 13,8/8,0

Frequency(Hz) 50 50 50 50 50 50 50 50

SeeFigure2.

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CF 30/15 CF 120/15 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/25 CF 160/25

Phase: 3~ 3~ 3~ 3~ 3~ 3~ 3~ 3~

Startingcurrent 6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

6-7xratedcurrent

Degreeofprotection

IP55 IP55 IP55 IP55 IP55 IP55 IP55 IP55

Weight(kg) 67 123 105 110 112 150 232 292

Workingtemperature(°C)

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Ambienttemperature(°C)

30to+40 30to+40 30to+40 30to+40 30to+40 30to+40 30to+40 30to+40

SeeFigure2.

3.1.2 Technical data 60 Hz fans (metric)

Table3-2:Technicaldata60Hzfans(metric)

CF 30/15 CF 30/20 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/15 CF 120/25 CF 160/25

Capacity(m3/h) 535 - 4180 700 - 4315 830 - 6000 910 - 6550 800 - 5600 1600 - 8540 2600 - 13980 2340 - 11650 2650 - 17140

Totalpressure(Pa)

1970 - 575 2890 - 950 2540 - 870 3640 - 1320 4540 - 1570 3170 - 1020 3590 - 1170 5260 - 1700 5060 - 1870

Motorpower(kW)

2,2 3,0 4,0 5,5 5,5 7,5 11 15 18,5

Speed(r/min) 3500 3515 3535 3510 3520 3550 3540 3550 3560

Voltage(V)Current(A)

208 8,6

208 11,5

208 15,1

208 18,7

208 18,7

208 26,2

208 38,4

208 52

208 66,4

Voltage(V)Current(A)

230YY/460Y 7,8/3,9

230YY/460Y 10,4/5,2

230∆∆/460∆ 13,6/6,8

230∆∆/460∆ 17/8,5

230∆∆/460∆ 17/8,5

230∆∆/460∆ 23,8/11,9

230∆∆/460∆ 34,8/17,4

30∆∆/460∆ 46,8/23,4

230∆∆/460∆ 60/30

Voltage(V)Current(A)

575V 3,1A

575V 4,2A

575V 5,5A

575V 6,8A

575V 6,8A

575V 9,5A

575V 11,0A

575V 19,4A

575V 24A

Frequency(Hz) 60 60 60 60 60 60 60 60 60

Phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase

Starting current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

Protection IP55 IP55 IP55 IP55 IP55 IP55 IP55 IP55 IP55

Weight(kg) 67 85 105 110 112 150 161 232 292

Working temperature(°C)

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum+60

Maximum +60ºC

SeeFigure2.

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CF 30/15 CF 30/20 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/15 CF 120/25 CF 160/25

Ambient temperature(°C)

30to+40 30to+40 30to+40 30to+40 30to+40 30to+40 30to+40 30to+40 -30ºCto +40ºC

SeeFigure2.

3.1.3 Technical data 60 Hz fans, 380 V (metric)

Table3-3:Technicaldata60Hzfans(metric)

CF 30/15 CF 30/20 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/25 CF 120/25 CF 160/25

Capacity(m3/h) 830 - 6000 910 - 6550 800 - 5600 1600 - 8540 2340 - 11650 2650 - 17140

Totalpressure(Pa)

2540 - 870 3640 - 1320 4540 - 1570 3170 - 1020 5260 - 1700 5060 - 1870

Motorpower(kW)

4,0 5,5 5,5 7,5 15 18,5

Speed(r/min) 3535 3510 3520 3550 3550 3560

Voltage(V)Current(A)

380∆ 8,2

380∆ 10,8

380∆ 10,8

380∆ 14,5

380∆ 27,9

380∆ 34

Frequency(Hz) 60 60 60 60 60 60

Phase 3phase 3phase 3phase 3phase 3phase 3phase

Starting current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

Protection IP55 IP55 IP55 IP55 IP55 IP55

Weight(kg) 105 110 112 150 232 292

Working temperature(°C)

Maximum +60

Maximum +60

Maximum +60

Maximum +60

Maximum +60

Maximum+60

Ambient temperature(°C)

-30to+40 -30to+40 -30to+40 -30to+40 -30to+40 -30to+40

SeeFigure2.

3.1.4 Technical data 60 Hz fans (imperial)

Table3-4:Technicaldata60Hzfans(imperial)

CF 30/15 CF 30/20 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/15 CF 120/25 CF 160/25

Capacity(cfm) 315 - 2466

410 - 2540

490 - 3535

535 - 3855

470 - 3300

940 - 5025

1530 - 8230

1375 - 6855

1560 - 10090

Totalpressure (inw.g.)

7.9-2.3 11.6-3.8 inw.g

10.2-3.5 14.6-5.3 18.2-6.3 12.7-4.1 14.4-4.7 21.1-6.8 20.3-7.5

Motorpower(hp)

3.0hp 4.0hp 5.5hp 7.5hp 7.5hp 10hp 15hp 20hp 25hp

Speed(r/min) 3500r/min 3515r/min 3535r/min 3510r/min 3520r/min 3550r/min 3540r/min 3550r/min 3560r/min

Voltage(V)Current(A)

208 8.6

208 11.5

208 15.1

208 18.7

208 18.7

208 26.2

208 38.4

208 52

208 66.4

Voltage(V)Current(A)

230YY/460Y 7.8/3.9

230YY/460Y 10.4/5.2

230ΔΔ/460Δ 13.6/6.8

230ΔΔ/460Δ 17/8.5

230ΔΔ/460Δ 17/8.5

230ΔΔ/460Δ 23.8/11.9

230ΔΔ/460Δ 34.8/17.4

230ΔΔ/460Δ 46.8/23.4

230ΔΔ/460Δ 60/30

Voltage(V)Current(A)

575V 3.1A

575V 4.2A

575V 5.5A

575V 6.8A

575V 6.8A

575V 9.5A

575V 11.0A

575V 19.4A

575V 24A

SeeFigure2.

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CF 30/15 CF 30/20 CF 30/25 CF 40/25 CF 50/25 CF 80/20 CF 120/15 CF 120/25 CF 160/25

Frequency(Hz) 60 60 60 60 60 60 60 60 60

Phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase 3phase

Starting current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

6-7xrated current

Protection IP55 IP55 IP55 IP55 IP55 IP55 IP55 IP55 IP55

Weight(lbs) 148 187 231 243 247 331 355 511 644

Working temperature(°F)

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Maximum +140

Ambient temperature(°F)

-22to+104 -22to+104 -22to+104 -22to+104 -22to+104 -22to+104 -22to+104 -22to+104 -22to+104

SeeFigure2.

4 InstallationSeeFigure3

4.1 Delivery checkIfthereareanydamagedormissingpartswhentheproductisdelivered,notifythecarrierandyour IAPrepresentativeimmediately.

4.2 General information

4.2.1 Fan orientationCFfanscanbebuiltin14differentorientations.Theorientationofafanisexpressedasseenfromthetransmissionside.SeeFigure4.

4.2.2 Standard fan outlet position for CF fansThestandardCFfansaredeliveredasRD0,showninFigure5.Otherpositionscanbedeliveredonrequest.PleasecontactyourIAP representativeforassistance.

4.3 Transport and installation

4.3.1 Transport and liftingLiftingandhandlingthefanmaycreatehazardsforanypersonsinthevicinity;itisthereforeimportanttofollowtheindicationsgivenbyIAPandtousesuitableequipment.Alloperationsinvolvingtheliftingandhandlingofthefanmustbecarriedoutwiththeutmostcaution,avoidinganyknocksthatcouldcompromisethefunctionalityordamagethefancomponents.Useonlythespecificliftingpointsonthefanandensurethatthefan’sweightisdistributedevenly.

NOTE! Allinstallationandassemblyworkmustbecarriedoutonlybyspecializedtechnicians.

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WARNING! Risk of personal injury.Theuserisresponsiblefortheselectionofequipment,ropes,beltsandchainsbestsuitedforbothloadandfunctionality.

4.3.2 Storage in a warehouseShoulditbenecessarytostorethefaninawarehouse,itmustbeprotectedfromatmosphericconditions,humidity,dustandanyharmfulsubstancespresentintheair.

WARNING! Risk of personal injury.Itisabsolutelyforbiddento:• Carryoutanymaintenanceworkwithoutfirstensuringthatthefanrotoriseffectivelystationary.

• Startanymaintenanceworkonthefan(includinglubrication)withoutfirstdisconnectingthefanfromthemainpowersupply.

• Cleanthefanwhileitisrunning.• Openanyshieldorinspectionhatchwhilethefanisrunning.

Werecommendthatyouperiodicallycheckthatthefanisinagoodconditionandturnthefanrotormanuallyapproximatelyonceamonthtopreventthedeformationofitsbearings.

WARNING!TheexamplesgivenaregenericexamplesasitisimpossibletoknowinadvanceeverypossibleconfigurationforliftingaCFfan.

4.3.3 Lifting CF fansCFfansareequippedwithamotor.Whenliftingthesefans,aswellasusingthespecificholesinfanstructure,theeyeboltforliftingthemotormustalsobeused(asshowninFigure6).

4.4 InstallationThefandoesnotrequirethepreparationofaspecialmachinebedforitsinstallation.Awell-leveledconcretesurfacethatcansupporttheweightofthefanissufficient.

NOTE! Alwaysuseanti-vibrationsupportsandcouplingstopreventthetransmissionofvibrationswhilethefanisrunning.

Thesupportbasemustbeperfectlylevelandflattopreventtorsioneffectsormisalignmentofthesupports:ifnecessary,installmetalshimsbetweenthemachinebaseandtheconcretesurfacetoensureaperfectfit.Usethefactory-fittedanchoringpointsandtakecarenottodeformthefanstructurewhiletighteningbolts.

Allconnectingtubingmustbesupportedseparatelyandmustbeaxiallyalignedwiththefan’sintakeandoutletnozzles,topreventanydeformationoccurringwhiletighteningthebolts.

WARNING!Allinstallationworkmustonlybecarriedoutbyqualifiedandauthorisedpersonnelusingsuitableequipment.

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4.4.1 Minimum distances between components Iftheavailablespacepermits,ininstallationswheretheintakeisconnectedtoapipe,werecommendfittingastraightlengthofpipewithalengthapproximately2.5timesthediameterofthefanrotor,toguaranteecorrectairflowintotheintake.SeeFigure7.

Withinstallationswithanopenairintake,werecommendleavingadistanceequaltoapproximately1.5timesthediameterofthefanrotorbetweenthefanintakeandthenearestwallormachine.SeeFigure8.

4.4.2 Connections to pipesConnectionsbetweenthefanandpipesmustbemadeensuringthatallcomponentsarecorrectlyalignedandthattherearenoobstructionsinthetubingcausedbygasketsorflexibleparts.Theweightofthetubingmustnotbesupportedbythefanandcaremustbetakennottodeformanypartofthefanduringtighteningoftheconnectionstothepipes.

NOTE! WedoNOTrecommendinstallationswithanopenairintake.

4.4.3 Electrical connectionsThefan’spowersupplylinemusthaveasufficientlyhighpowerrating.

Connectiontothemainpowergridmustonlybecarriedoutbyqualifiedpersonnel.Also,theclientisresponsiblefortheentireelectricalsystemuptomotorterminalboard.

Weremindyouoftheimportanceofinstallingasafeconnectiontoearthforthefan.Theearthconnectionsystemmustcomplywithlegislationineffectinthecountryofinstallationandmustbeperiodicallycheckedbyqualifiedpersonnel.Maketheconnectiontoearthbeforeanyotherconnection.Checkthattheconnectionlayoutissuitedtothemainspowervoltage.

Usually,standardelectricmotorscanruninbothdirectionsindifferently.Toinvertthedirectionofrotation,simplyswapoveranytwopowercablesdirectlyontheterminalboard.

Theclientmustalsoinstallanelectricaldisconnectingdevicenearthefansothatmaintenancepersonnelcanhavedirectcontroloverthepowersupplytothefan.

CAUTION! Risk of equipment damage. Theclientand/ortheinstalleroftheelectricsystemisresponibleforchoosingtheequipmentandcablesusedforconnectingthefanelectrically,basedonthedimensionsofthemotorinstalledandthecharacteristicsofthemainpowersupply.

Allworkperformedontheelectricalsystemmustonlybecarriedoutwiththefanatrestandelectricallydisconnectedfromthemains.Beforeinstalling/startingup,ensurethattheinformationontheidentificationplateonthemotoriscompatiblewiththemainpowersupply

4.4.4 Delta connectionsSeeFigure9.

4.4.5 Star connectionsSeeFigure10.

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4.5 Checks to be made before and after starting

4.5.1 Preliminary checks

WARNING! Risk of personal injury!Preliminarychecksmustonlybeperformedwiththefanatrestanddisconnectedfromthepowersupply.

Whenstartingthefanforthefirsttime,thefollowingpreliminarychecksarenecessary:

• Checkthatallboltsarecorrectlytightened(rotor,supports,foundationbolts,andtransmissioncomponents).

• Checkthelubricationofthefanandmotorbearings;ifnecessary,regrease(seeChapter5. Maintenance).

• Checkthatallrotatingpartscanturnfreely.• Checkthattherearenotforeignobjectsinsidethefan.• Checkthatthefanturnsinthecorrectdirection:powerthemotorforabriefmomenttoseeifitturnsincorrectdirectionindicatedbythearrowonthefanhousing;ifnecessary,invertthedirectionofrotation(seeSection4.4.3. Electrical connections).

Youmaynowstartthefan.Withcentrifugalfans,closeofftheairintakepartiallytoreducethepowerpeakatstart-upandthemotorstartingtime.

4.5.2 Checks to be carried out with the fan runningCheckthatthepowerabsorptiondoesnotexceedthevalueindicatedonthemotoridentificationplate,ifitdoes;stopthefanimmediatelyandcontactthemanufacturer.

Thefanmustrunwithoutexcessivevibrationandnoise.

Check,withthefanatrestandatanoutsideairtemperatureof20°C,thatthebearingsdonotexceedthemaximumoperatingtemperature(maximumbearingtemperature70°C).

Duringthefirstfewhoursofoperation,itisnormalforthebearingstoreachslightlyhighertemperatures,aslongastheylaterstabiliseatalowervalue.Intheeventofoverheatingofthebearings,contactyour IAP representative.

After3-4operatinghours,withthefanatrestanddisconnectedfromthepowersupply,checkagainthatallboltsarecorrectlytightened,thebearingtemperature.

4.6 Malfunctions and causes Table4-1:Malfunctionsandcauses

Problem Reason Cause

Powerabsorptionmuchlowerthannominalvalue

Insufficientairflow • Rotationalspeedtoolow.

• Nozzleortubingpartiallyobstructed.

• Fanrotorpartiallyobstructed.

• Pressureresistanceofferedbythesystemhigherthanthedesignvalue.

• Fluiddensityhigherthanthedesignvalue.

• Inverteddirectionofrotation.

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Problem Reason Cause

Highpowerabsorption Excessiveairflow • Excessiverotationalspeed.

• Pressureresistanceofferedbythesystemlowerthanthedesignvalue.

• Fluiddensityhigherthanthedesignvalue.

Highpowerabsorption • Airflowalreadyrotatingintheoppositedirectiontothefanrotationdirection.

• Motorpowersupplyvoltagelowerthanthevalueindicatedontheidentificationplate.

• Faultsinthemotorwindings.

Insufficientpressure • Rotationalspeedtoolow.

• Fluiddensitylowerthanthedesignvalue.

Fluctuatingfanoperation Unstableairflow • Lowairflow.

• Fluctuationsinairflowduetofansworkinginparallel.

• Vorticesintheairinducedbyequipmentneartheairintake.

Vibrations Fluctuatingfanoperation

• (seepreviouscause)

Vibrations Unbalancedrotatingcomponents

• Fanrotorwear.

• Depositsonthefanrotor.

Vibrations Mechanicalmalfunctionordefects

• Contactbetweenmovingandstationarycomponents.

• Intrinsicfaultinthebearings.

• Malfunctionofthebearingsduetounbalancedrotor.

Excessivenoise • Contactbetweenmovingandstationarycomponents.

• Fluctuatingfanoperation.

• Electromagneticfaultinmotor.

• Orificesorsharpanglesintubing.

5 MaintenanceCAUTION! Risk of equipment damage. Useonlyoriginalsparepartsandaccessories.

ReadChapter2Safetybeforecarryingoutmaintenance.

Installation,repairandmaintenanceworkistobecarriedoutbyqualifiedpersonnel using only original spare parts. Contact IAP for advice ontechnicalservice.

CAUTION! Risk of equipment damage. Duringanymaintenanceprocedure,thefanmustbedisconnectedandinsulatedfromtheelectricpowersupply.

5.1 Checking and cleaning parts in contact with the fluidThefanrotorshouldbecleanedregularlytopreventvibrationcausedbydustaccumulatingonthebladesduringoperation.Ifthefanisusedtopumpevenslightlydustyair,aircontainingabrasivepowdersorforthepneumatictransportmaterial,thecleanlinessandwearofthefanrotormustbe

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checkedregularly.Dirtdepositsontherotororwearofpartsoftherotorcancauseundesirablevibrationsduringfanoperation.Ifanypartoftherotorisexcessivelyworn,itisimperativethattherotorbereplaced.Foranyinformationandbeforecarryingoutanymodificationtooneofourfans,pleasecontactIAPandquotethepartnumberfoundonthefanidentificationplate.

NOTE! Anintegratedmaintenanceprogramisnecessaryfornormalandcorrectoperationofthefan,andalsoensuresgreatersafetyfortheoperator.

NOTE! Regularcleaningandmaintenancetogetherwithlubrication,arevitalforensuringcorrectoperationandgreaterdurabilityofthefan.

5.2 Disassembly

WARNING! Risk of personal injury!Allthedisassemblyandreassemblyoperationsdescribedbelowmustonlybecarriedoutbyqualifiedandauthorisedpersonnel.Fornoreasonwhatsoevermusttheoperatororfactorypersonnelcarryouttheseoperations.

CAUTION! Allthedisassemblyandreassemblyworkmustbecarriedoutwiththefollowingconditions:• Youmustbeabsolutelycertainthatthefaniscompletelystationary(fanrotoratrest);disconnecttheelectricalpoweratthemainpanelwiththeswitch,locktheswitchwithapadlockandhandthekeytotheheadofmaintenance.

• Theworkingenvironmentmustbeequippedwitheverytoolnecessaryandmustbefreeofanyhazards.

• Everypiecetoberefittedmustbethoroughlycleaned,degreasedandlubricatedasnecesasarybeforerefitting.

5.2.1 Intake nozzlesUndothenozzlesecuringnutsfromthefanhousing.Slideoutthenozzle.

5.2.2 HousingWithallorientablefans,thehousingissecuredtotheframebybolts.Simplyundothesecuringnutsattheframeplate.Withnon-orientablefanswithsingle-piecehousings,thehousingcannotbedisassembled.Thehousingincertainfantypesmaybedividedintotwoormorepieces,securedtogetherbybolts.

5.2.3 Fan rotorRemovethenozzleand,wherepossible,thefanhousing.Withsingleintakefans:removethescrewtogetherwiththelock-ringanduseasuitablysizedextractor.Werecommendsettingupasupportfortherotorbeforeextractingitcompletely.Inanyevent,thisoperationmustalwaysbecarriedoutwithgreatcare,avoidinganyknocksthatcouldalterthebalanceoftherotorordeformit.

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5.3 Technical enclosuresTightening torques for nuts and bolts

ThetighteningtorquesMgiveninthetableareapplicableinthefollowingconditions:

• HexagonalheadUNI5737typescrews,cylindricalheadUNI5931andUNI6107typescrews,innormalconditionsinwhichtheyaresupplied.

• Tighteningtorquesmustbeappliedslowlyusingatorquewrench.

Whilemaintainingthesamepre-loadvalues,tighteningtorquesmustbemodifiedasdescribedbelowinthefollowingcases:

• Increasedby5%forwide-headUNI5712screws.• Reducedby10%forzincplatedoiledscrews.• Reducedby20%forphosphorcoatedoiledscrews.• Reducedby10%ifthescrewistightenedwithanimpulsetightener.

Table5-1:TighteningtorquesMforboltswithISOmetricthread

d x pitch (mm) S r (mm²) 8.8 M (Nm) 10.9 M (Nm) 12.9 M (Nm)

6x1 20,1 1.10,4 2.15,3 3.17,9

7x1 28,9 17,2 25 30

8x1,25 36,6 25 37 44

10x1,5 58 50 73 86

12x1,75 84,3 84,3 127 148

14x2 115 115 115 115

16x2 157 214 314 368

18x2,5 192 306 435 509

20x2,5 245 432 615 719

22x2,5 303 592 843 987

24x3 353 744 1060 1240

27x3 459 1100 1570 1840

30x3,5 561 1500 2130 2500

5.4 Spare parts

CAUTION! Risk of equipment damage. Useonlyoriginalsparepartsandaccessories.

Contact IAP for advice on technical service or if you require helpwithspareparts.

Ordering spare partsWhenorderingsparepartsalwaysstatethefollowing:

• Partnumberandcontrolnumber(seetheproductidentificationplate).• Detailnumberandnameofthesparepart.• Quantityofthepartsrequired.

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5.5 RecyclingTheproducthasbeendesignedforcomponentmaterialstoberecycled.Itsdifferentmaterialtypesmustbehandledaccordingtorelevantlocalregulations.

Contact Information

Industrial Air Purification, Inc.

2544 Highway 70 East, Cookeville, TN 38506

Tel : (931) 372-0050

E-mail : Sales@IAP-AirProducts.com

Website : www.IAP-AirProducts.com