AQC Maxiflo 2MCH2-8 User manual

Owner’s manual for installation,
use and maintenance
This manual is property of the owner. Leave with the unit when set-up and start-up are complete.
AQC Dust Collecng Systems inc. reserves the right to change design and specicaons without prior noce.
2MCH2-8, 2MCH3-12, 2MCH4-16, 3MCH2-12, 3MCH3-18, 3MCH4-24, 4MCH2-16, 4MCH3-24,
4MCH4-36, 5MCH4-40, 6MCH4-48, 7MCH4-56, 8MCH4-64, 9MCH4-72, 10MCH4-80

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INDEX
 1 Introducon ................................................. 3
 2 Informaononthedustcollector ................................ 3
 3 Presentaon ................................................. 4
3.1 Each MAXIFLO unit includes ...................................... 4
 4 Normaluse .................................................. 4
 5 Operaon ................................................... 5
5.1 Cartridge cleaning .............................................. 5
 6 Installaon .................................................. 6
 6.1 Inspeconofgoods ............................................. 6
 6.2 Locaon....................................................... 6
 7 Assembly ................................................... 7
 7.1 Requiredtools ................................................. 7
 8 Assembly.................................................... 7
 9 Structureassembly............................................ 8
 10 Electricalconnecon .......................................... 10
 10.1 ElectricalconneconforDCT-500sequencer ........................ 10
 10.2 ElectricalconneconforDCT-1000sequencer ...................... 11
 10.3 Compressedairconnecon....................................... 13
 10.4 Venlaonducng.............................................. 13
11 Start up ..................................................... 13
11.1 Check list ...................................................... 13
 12 Electricalconnecons ......................................... 14
12.1 Check list ...................................................... 14
 12.2 Electricalconnecons ........................................... 14
 12.3 Oponalequipment............................................. 14
 12.4 An-abrasiveinlet .............................................. 15
 12.5 Plaormandladder ............................................. 16
 12.4 Explosionreliefvent............................................. 16
 13 Magnehelicgauge ............................................ 17
 14 Start/Stopprocedure .......................................... 17
 14.1 Startupwithnewlters ......................................... 17
14.2 Regular start up ................................................ 17
 14.3 Shutdown .................................................... 17
 15 Safety ...................................................... 17
 15.1 Sta-Workers .................................................. 17
 15.2 Electricalcomponents ........................................... 18
 15.3 Explosivedusts ................................................. 18
 15.4 Anchors ...................................................... 18
 15.5 Interiorinstallaon ............................................. 18
 15.6 Sparkproducingacvies ........................................ 18
 16 Maintenance................................................. 19
 16.1 Remplacementofcartridges...................................... 19
 16.2 Remplacementofcartridges...................................... 19
 17 Compressedairsystem ........................................ 21
 17.1 Explosionvent ................................................. 21
 17.2 Controlpanel .................................................. 21
 18 Programminginstrucons ...................................... 22
 18.1 DCT-500sequencer ............................................. 22
 18.2 DCT-1000sequencer ............................................ 22
 19 Maintenanceandinspecon ................................... 23
 20 Troubleshoong .............................................. 24
 21 Warranty .................................................... 27
 22 Limitaonofliability .......................................... 28
 23 Applicability ................................................. 28
 24 Governinglaw ............................................... 28

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1 INTRODUCTION
ThispresentmanualreferstotheMAXIFLOdustcollectorequippedwithanairpulsecleaning
system.Itincludesimportantinformaonconcerningtheinstallaon,useandmaintenanceof
yourcollector.Readthismanualthoroughlyandapplythedirecvesandprocedures.Staand
personnelusingthesystemshouldbetotrainedonsafetymeasuresandmaintenanceprocedures.
2 INFORMATION ON THE DUST COLLECTOR
Model: Serial number:
Delivery date: Date of installaon:
Name of customer:
Address:
Accessories:
Other:
WARNING!
Thetypeofdusttobelteredmayrequireanexplosion
reliefvenngsystem.Dustcollectorsarenotequippedwith
suchadeviceunlessitwasrequestedwhenordered.Contact
A.Q.C.Inc.ifyouhaveanydoubtinregardtotheuseofyour
collector.
Notfollowingdirecvesandprocedurescouldcause
injuriesorpropertydamages.
3

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3 PRESENTATION
TheMAXIFLOisacartridgedustcollectorwithanairpulsecleaningsystemwhichcleanstheenre
surfaceofltraon.Thedown owtypedustcollectorobtainshigheciencyltraonwhile
requiringlowenergyconsumpon.Thecartridgesarecleanedbymeansofasequencedpulseof
compressedairandthis,oneatame.
TheMAXIFLOdustcollectorislargelyusedinareaswheredustisanuisance.Mainapplicaonsare
forwelding,bung,pharmaceucaloperaons,handlingofvolaledusts,etc.
TheMAXIFLOmayoermulpleconguraonsfordustcapture.Oponalequipmentmayinclude
ahopperwithquickclipdrum,drawerorwithconveyorandrotaryvalve.
3.1 EachMAXIFLOunitincludes:
• Fullyweldedsteelcabinetwithreinforcements.
• 4to80ltercartridgeswithspecicmediaforyourapplicaon.
• Airdeectorstoprotectthecartridgesfromlargesdebris.
• Cartridgecleaningsystembyairpulsaonandelectronicsequencer.
• Factoryprewiredcleaningvalves.
• Dierenalpressureindicatorshowingthestatusofcartridges.
• 3stepspaintnish:degreasing,primecoatandpolyurethanenalcoat.
TheMAXIFLOunitisshippedassembledorinseconsfornaleldassembly.Electricalconnecons
forthecleaningsystemwillbeexecutedatthejobsiteuponthecollectornalinstallaon.
4 NORMAL USE
TheMAXIFLOunitisdesignedtoremovedustfromtheairresulngfromafabricaonprocess.
EachMAXIFLOdustcollectorisbuiltasperthecriteriaandinformaonsuppliedbythecustomer
foraspecicapplicaonandshouldnotserveanyotherapplicaonwithouttheapprovalofA.Q.C.
Inc.

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WARNING!
Flammableorexplosivedustsandsolventspresentareorexplosion
hazardwithinthecollector.Undernocircumstances,thosepollutants
shouldbelteredbythecollectorunlessithasbeendesignedto
thateectandequippedwithanexplosionreliefvenngsystemor
reexnguishingdevice.Thisisthereasonwhyspecialaenonis
requiredwiththehandlingofdustcollecngequipmentincontactwith
ammableorexplosivedustsandsolvents.Anyburningorammable
materialsuchasasparkcreatedbymetalgrinding,litcigarees,spark,
etc.shouldnotbeintroducedwithinthecollectorwhereitcouldcause
areorexplosion.
5 OPERATION
Duringnormaloperaon,theMAXIFLOunitvacuumsdustladenairintothecollectorinlet.Smaller
parclesarevacuumedtowardthecartridgesandlargerparclesfalltowardtheduststorage
secon.Dustistrappedwithinthecartridgeleavingcleanaircrossingtheltertowardthecollector
outlet.
 5.1 Cartridgecleaning
The cleaning of the filter cartridges is performed using a reverse air pulse technology
(seegure1).Asolenoidanddiaphragmvalvesystemisalignedtowardthecartridgesandthe
shockwavecreatedbyreleasingairathighvelocitycleansthecartridges.Thecleaningcyclestarts
fromtheuppercartridgesandendsatthelowercartridges.
Figure 1
Cartridge cleaning operation
Drawing #1
ENHANCED CLEANING SYSTEM
DIRTY AIR INLET
COMPRESSED
AIR CONNECTION
DIAPHRAGM
VALVES
FILTER
CARTRIDGES
CLEAN AIR
OUTLET
NORMAL OPERATION CARTRIDGE CLEANING
OPERATION

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6 INSTALLATION
 6.1 Inspeconofgoods
TheMAXIFLOunitisshippedassembledorinsecons.Proceedwithavisualinspeconupon
receivingthematerialandcheckforanyapparentdamagethatmayhaveoccuredonfreight.
Generally,shipmentincludestheltercabinetandtheduststorageseconwithsupportstructure.
Otheroponalcomponentssuchasamefrontexhaustductorbackdradampermaybedelivered
onseparateskids.
 6.2 Locaon
1. Theareawherethedustcollectorwillbeinstalledshouldbeabletosustaintheweightofsuch
alongwiththeaccessories,ducng,blowerandmaerthatwillbestored.Theconstrucon
ofaatandsolidsurfacesuchasaconcreteslaborplaormmayberequired.
2. Windfactorandseismiczonesshouldbeconsideredbeforeselecngthelocaonofthedust
collector.
3. Posionthedustcollectorinawaytohaveaccesstothecontrolpanel,cleaningvalves,
pneumacconduits,accessdoortoltersandduststoragesystemsassuggestedingure2.
4. Ifthedustcollectorisequippedwithanexplosionreliefvenngsystem,followguidelinesfor
itslocaon.
5. Fumearmmayalsobeductmounted.Ifso,ducngmustbeabletosupportweightofarm
combinedwithpushandpulleectsofmovingthearmforsourcecaptureposon.
6. TheMAXAIRfumearmmayalsobeusedwithoponalAQCequipmentsuchasextension
swingbooms, slidingrail withtrolley, portableltraon units,etc. Refertoappropriate
manualforinstallaon.
Recommended free/workspace
Drawing # 2
Figure 2
RECOMMENDED FREE/WORK SPACE

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7 ASSEMBLY
 7.1 Requiredtools
Thefollowingtoolsandequipmentarerequiredfortheassemblyofthedustcollector:
8 ASSEMBLY
1. Preparetheareawherethecollectorwillbeinstalledmakingsureitisclearandfreeofany
obstacle.
2. Usingeyebolts,slingsandshackles,litheduststorageseconabovetheselectedareaand
setslowly.
3. Oncethisseconisrmlysettotheground,makesureitislevel.Useanchorboltstokeepit
in place.
4. Installagroundwiretotheunit.
• Craneorlitruck
• Spreader
• Chains
• Slings
• Shackles
• Eyebolts
• Spikes
• Wrench
• Sockets
• Powerdrill
• Concretedrillbit
• Concreteanchors
• Bolts
• Selftappingscrews.
• Caulking
WARNING!
Applytwostripsofbutyladhesiveontheduststorageseconupper
outline.Onestripshouldbeappliedinwardoftheboltholesandone
stripoutwardoftheboltsholes
(gure3).
5. Litheltercabinetusingthelilugs.Usingspikes,posionthecabinetabovethedust
storageseconmakingsuretoalignthecabinetboltholeswiththeduststorageseconbolt
holes.
WARNING!
Theuseofaspreaderisrecommendedtoavoiddamagestothelter
cabinet.

Horizontal downow pleated cartridge dust collector
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6. Lowertheltercabinetontotheduststorageseconandalignbothseconsboltholes.
7. Aachtheltercabinettotheduststorageseconusingthesuppliednuts,washersand
bolts.Tightenboltsforanadequateseal.
8. Usecaulkingtoeliminatepossibleleaks.
WARNING!
Theuseofimproperliingdevicemayresultininjuriesordamages.
Adequateliingdevicesarerequiredandnecessaryprecauonsmust
betakenwhenhandlingtheequipment.
9 STRUCTURE ASSEMBLY
Generally,thesupportstructureisfactoryassembledbutbecauseofshippingpurposes,some
eldassemblymayberequired.Thenextstepsmustbefollowedtoassemblethedustcollector
structure.
Drawing # 3
MAXITUBE Page | 9
Baghouse Dust Collector
4. Install a ground wire to the unit.
5. Lift the filter cabinet using the lift lugs. Using spikes, position the cabinet
above the dust storage section making sure to align the cabinet bolt holes
with the dust storage bolt holes.
6. Lower the filter cabinet onto the dust storage section and align the bolt holes.
7. Attach the filter cabinet to the dust storage section using the supplied nuts,
washers and bolts. Tighten bolts for an adequate seal.
Figure 3
Support
plates
Support
legs
Cross braces
WARNING
Apply two strips of butyl adhesive on the dust storage section upper
outline. One strip should be applied inward of the bolt holes and one
strip outward of the bolt holes (Figure 4).
Figure 4
WARNING
The use of a spreader is recommended to avoid
damages to the filter cabinet.
Unside bag
removal
APPLY BUTYL

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1. Vercallyinstalltheoutersupportlegs.
2. Installthecrossbraceswiththehardwaresuppliedasshowningure3.Oneisinstalled
insideofthelegsandtheotheroutsideofthelegs.Donotghtenthescrewsatthismoment.
3. Withtheuseofacrane(orliingdevice),slowlysetthehopperontothesupportplates.
Aachthesupportlegstothehopperusingthesuppliedhardware.
4. Levelallcomponentspriortoghtenthecrossbracesusingbolts,nutsandwashersatmeeng
point#2.Anchorthehopperseconintothegroundusinganchorbolts(notsupplied).
5. Withdrawthecraneonlywhenallcomponentsarermlyinplace.
Drawing # 4
MAXITUBE Page | 9
Baghouse Dust Collector
4. Install a ground wire to the unit.
5. Lift the filter cabinet using the lift lugs. Using spikes, position the cabinet
above the dust storage section making sure to align the cabinet bolt holes
with the dust storage bolt holes.
6. Lower the filter cabinet onto the dust storage section and align the bolt holes.
7. Attach the filter cabinet to the dust storage section using the supplied nuts,
washers and bolts. Tighten bolts for an adequate seal.
Figure 3
Support
plates
Support
legs
Cross braces
WARNING
Apply two strips of butyl adhesive on the dust storage section upper
outline. One strip should be applied inward of the bolt holes and one
strip outward of the bolt holes (Figure 4).
Figure 4
WARNING
The use of a spreader is recommended to avoid
damages to the filter cabinet.
Unside bag
removal
APPLY BUTYL
SUPPORT PLATES
SUPPORT LEGS
CROSS BRACES

Horizontal downow pleated cartridge dust collector
10
10 ELECTRICAL CONNECTION
WARNING!
Theelectricalconneconsmustbeexecutedbyaqualied
electricianandwithrespecttocodesandregulaons.For
safetymeasures,shutopowersupplytothecollectorprior
toperformtheinstallaon.Lockoanypowersupplyprior
toservicingormaintenance.
Thedustcollectorcontrolpanelregulatesthecartridgecleaningsystem.
Thedustcollector controlpanelmaybe installedon theMAXIFLOunit,inside oroutsidethe
buildingorremoteoftheunit.
1. Usingtheelectricaldiagramsuppliedwiththepanel,connectthepowersupplyfromthe
mainbreaker(suppliedbythecustomer)tothecontrolpanel.
2. Refertothedescripveidencaonplatetoselectpropervoltageandamperage.
3. Iftheunitissuppliedwithacustomizedcontrolpanel,refertothedescripveschemacsto
performconnecontothepowersupply.
4. Verifyforpropermotorrotaon.
 10.1 ElectricalconneconforDCT-500sequencer
TheMAXIFLOunitisequippedwith115VACsolenoidswhichacvatethecleaningvalves.Those
solenoidsareintegratedinaNEMA4/12boxbehindtheltercabinetandabovetheairtanks.
Conneconsforthosesolenoidsarefactorywired.TheDCT-500sequenceracvatesthesolenoids
inacascadingsequenceoperangthecleaningvalves.
Figure5showsatypicalconneconforaDCT-500sequencerwithstarter.Theelectronicboard
isacvateduponfanstartupusinganauxiliarycontact.TheelectronicboardisedinaNEMA
4/12box.
ToacvatethepulsecleaningsystemwhenthefanisOFF,installaselectorormerwithconstant
feedontheinletconnectoroftheelectronicboard.Refertopage22ofthisdocumenttoprogram
the sequencer.
 10.12 DCT-500boardspecicaons
Numberofconnectors:4,6,&10
Power:102-132VAC50-60Hz.Consumpon:2.5W.
Powertosolenoids:3Amax.perconnectorFuses:Type3AG,3A@250VAC.
Temperaturerange:-40to140°F(-40to60°C)Shuerme:50msecto500msec.
Shuermeaccuracy:±10msec.
Shuermestability:±1msec.
Lapsesequence:1secondto180seconds.
Lapsesequenceprecision:±5%sengs.
Weight:9oz(255g).Approvalagency:CE(pending).

Horizontal downow pleated cartridge dust collector
11
 10.2 ElectricalconneconforDCT-1000sequencer
TheMAXIFLOdustcollectorisequippedwith115Vsolenoidswhichacvatethecleaningvalves.
ThesesolenoidsaregroupedinaNEMA4½panelinstalledbehindthecabinet,abovetheairtanks.
Adierenalcontrolpanel(DCP)mayalsobeincludedontheelectronicpanel.Wiringforthese
solenoidsisfactoryassembled.TheoponalDCT-1000acvatesthesolenoidsinsequenceto
operatethecleaningvalves.Drawing#6representsatypicalconneconwithastartertoaDCT-
1000sequencercard.Theelectronicpanelisacvatedinsimultaneouslywiththefanstart-up.This
operaonwillregulatesthepulsesrequiredasperthestatusofthelters.
Typical connection for DCT-500 series electronic board
Drawing # 5
Figure 5
TYPICAL CONNECTION FOR DCT-500
SERIES ELECTRONIC BOARD

Horizontal downow pleated cartridge dust collector
12
10.2.1 DCT-1000boardspecicaons
DCT-1000controller:
Numberofconnectors:6,10&22
Extendableto255conneconsbyusing
extensioncardDCT-1122&DCT-1110
Power:85-270VAC,50-60Hz.
Consumpon:5W.
Powertosolenoids:3Amaxperconnecon.
Fuses:3A@250VAC.
Temperaturerange:-40to140°F(-40to60°C).
Shuerme:10msecto600msec.
Shuermeaccuracy:±10msec.
Downme:1secondto255seconds
Downmeaccuracy:±1%ofseng
Weight:1lb,3.0oz(538.6g).
Approvalagency:UL,cUL.
DCPpressuremodule:
Pressurerange:10"w.c.ou20"w.c.
Temperaturerange:-40to140°F(-40to60°C)
Highpressure:10psig(68.95kPa).
Highpressure(dierenal):10psig(68.95kPa)
Accuracy:±1.5%F.S.@73°F(22.8°C).
Outletsignal:4-20mA.
Weight:5.5oz(155.9g).
TYPICAL CONNECTION FOR DCT-1000 SEQUENCER
CONNECTION TO SOLENOIDS
PNEUMATIC CONNECTIONS
FOR DIFFERENTIAL PRESSURE
CONTROLLER
SOLENOIDS
NEMA 4/12 ENCLOSURE
ELECTRICAL CONNECTION
120/1/60
HP MOTOR
STOPSTART
STARTER
FUSES
220/460/575 3 PH
C1
C1
C1
C1
B1
DCP PRESSURE MODULE

Horizontal downow pleated cartridge dust collector
13
 10.3 Compressedairconnecon
WARNING!
Compressedairmustbefreeofoilandhumidity.
Contaminaonofcompressedairmayresultinapoor
cartridgeltraon,decreasedcleaningandreducedlifeme.
Purgethecompressedairlinetoremoveanydebrispriorto
connecngairlinetothedustcollectorairtank.
Shutothecompressedairsystemandpurgeallairlines
priortoservicingormaintainingthecollector.Locatethe
pneumacairtank(s)behindtheMAXIFLOdustcollector.
Connectairlinetothetank(s)usingpipeseal.Checkfor
possibleleak(s).
Note : The use of an air dryer is strongly recommended to avoid any problems related to
humidityinthecompressedairsystem.Installashutovalve,pressureregulatorandlteron
thecompressedairline.ThosecomponentsarenotsuppliedbyA.Q.C.unlessrequiredbythe
customer.Allcomponentsmustmeetamaximum90psigpressure.NEVERALLOWMORETHAN
100PSIG.Damagestocomponentsmayoccur.
 10.4 Venlaonducng
1. Thedustcollectorshouldbeinstalledascloseaspossibletothesourceofdustinorderto
minimizethelengthofvenlaonducng.
2. Donotinstallshortradiuselbows.
3. Installtapswith30degreesinletorless.
4. DonotinstallstraightTtaps.
5. Joinducngusingtappingscrewsandcaulkingforaproperseal.
11 START UP
 11.1 Checklist
Priortostarngthecollectorfortherstme,thechecklistmustbefollowedtoensureaproper
connuousoperaon.
1. Removeallobjectsinandaroundtheinletandoutlet.
2. Checkifallaccessoriesandoponalequipmentareinstalledcorrectly.
3. Ensurethecompressedairgaugeindicates90psig.Checkforairleaks.

Horizontal downow pleated cartridge dust collector
14
12 ELECTRICAL CONNECTIONS
 12.1 Checklist
Priortostarngthecollectorfortherstme,thechecklistmustbefollowedtoensureaproper
connuousoperaon.
1. Removeallobjectsinandaroundtheinletandoutlet.
2. Checkifallaccessoriesandoponalequipmentareinstalledcorrectly.
3. Ensurethecompressedairgaugeindicates90psig.Checkforairleaks.
 12.2 Electricalconnecons
WARNING!
Theelectricalconneconmustbeexecutedbyaqualied
electricianandwithrespecttocodesandregulaons.For
safetymeasures,shutopowersupplytothecollectorprior
toperformtheinstallaon.
1. Ensureallelectricalconneconssealedandpowerisavailable.
2. Checkremotecontrolconnecons(ifany)andthatallbreakersareOFF.
3. SwitchONpowertotheunit.
4. Startthefanandshutoimmediately.Checkfanrotaon.Therotaonisindicatedonthe
labelofthefan.
5. Adjusttheadequateairvolumeusingtheairdamper(ifany)atthefanoutlet.
Note :Anexcessiveairvolumemayshortenthelifeexpectancyofthecartridgesorcausean
electricalpowersurgeonthefanandthesystem.
 12.3 Oponalequipment
  Quickclipdrum,rampandbuggy
Thisoponeasesthe removalofdust
lled 55 gallon drums. The quick clip
ange allows fast changes of drums
without the help of tools. The buggy
permitseasydisplacementoffulldrums.
QUICK CLIP
LOWER FLANGE
DRUM
DOLLY
RAMP
GASKET SEAL

Horizontal downow pleated cartridge dust collector
15
Followthesestepstoremovethedrumfromthecollector:
1. Holdupthedrum
2. Unlockthequickclipsystem
3. Lowerdrumontotherampslides
4. Slidedrumslowlytowardyou
WARNING!
Donotletdrumfallfreewhileunlockingthequickclip
system.Becarefulwhenreleasingclip.
Followthesestepstoinstallthedrumbackintoposion:
1. Ensuretheangegasketsealisinplaceandintact.Replaceifdamaged.
2. Slidethedrumintotherampslides.
3. Checktomakesurethedrumangeispushedattheendoftheslide.
4. Lidrumup.
5. Aachthedrumtothequickclipsystem
6. Checkthesealassembly.Adjustquickclipsystemifthereisaleak.
 12.4 An-abrasiveinlet
Thisoponisrecommendedfortheltraonofabrasiveparcleswhichmaydamagethelter
elements.Ahighlyresistantsteelplateslowsdowntheparclesandmakethemlessabrasiveon
thelters.
Tochangetheabrasionplate,followthesesteps:
1. Removetheoldplateandthegasketseal.
2. Applythenewgasketsealontheabrasionplate.
3. Installthenewabrasionplateontheinletusing3/8-16nutsandbolts.
QUICK CLIP
LOWER FLANGE
DRUM
DOLLY
DIRTY AIR INLET
ABRASION PLATE
DUST COLLECTOR
CONNECTION

Horizontal downow pleated cartridge dust collector
16
 12.5 Plaormandladder
Plaormsandladdersareavailablefor8to80cartridgesMAXIFLOunits.Theymaybestaonary
oraachedtothedustcollectorstructure.ContactanA.Q.CInc.Representavetoknowwhich
plaormdesignisbestsuitedtoyourneeds.Instruconsforplaormandladderassemblyare
includedondelivery.
 12.4 Explosionreliefvent
Note on explosion venng panels :aminimumclearanceof25'(8meters)freeofobstacles,
pedestrianwalkway,buildingwalls,treesorbushesisrequiredtoallowdispersionofpossibleblast.
Contactfactoryfordetails.
A.Q.C.Inc.willnotbeheldliablenorresponsibleforanyinjuryordamagecausedbyreorexplosion
aspertheagreementissueduponconstruconofthedustcollector.
However,theexplosionreliefvent isdesigned tomeet NFPA-68criteria,relatedtoexplosion
venngsystems.Theenrevenngsurfaceiscalculatedusingsuchcriteria.Theexplosionvenng
panelisdomedandisceredATEX.Pstatis0.1bar(1.45psi)+ou-15%@71.6oF,KSTmaxis
500barm/s.Pmax<1.8bar(26psi).Maxvacuum-80WGandmadefrom304Lstainlesssteel.
WARNING!
Ensureplaormandladderarecorrectlyinstalledbefore
climbingontheplaorm.
WARNING!
Theexplosionventmustpointinadireconawayfrom
workersarea,oces,pedestrianwalkwaysoranyother
areausuallyaccessible,vegetaonoranymaerthatwould
sustaindamagescausedbyanexplosion.Adeectorshield
couldbeconsidered.

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13 MAGNEHELIC GAUGE
TheMagnehelicisadierenalpressuregaugeusedtomeasurethedierencebetweentheclean
anddirtyair.Thisallowsavisualreferenceontheltersstatusandindicateswhenitismeto
replace.
ThisgaugeisgenerallyfactoryinstalledunlessunderspecicrequesttoA.Q.C..IftheMagnehelic
gaugeisnotpartofthecollector,connectthe(HIGH-PRESSURE)tubeonthe"dirty"sideofthe
collector.Connecttheother(LOW-PRESSURE)tubeonthe"clean"sideofthecollector.
ThisgaugeisnotavailablewhenthecollectorissuppliedwithaDCT-1000electronicboardanda
DCPpressuremodulesinceitisthisonethatwillreadthepressuredierenal.
14 START/STOP PROCEDURE
 14.1 Startupwithnewlters
Shut50%oallinletandoutletdampers(ifany)beforestarngtheunit.Thisprocedureismostly
helpfulwhen thedust tobe lteredsckstotheltersurface.Do notoperate theltraon
systemunlthepressuredierenalhasincreasedbyatleast1"w.g.fromthestarngpoint.This
operaonallows"caking"ontothecartridgesforabeerltraoneciency.
 14.2 Regularstartup
Ensurealloponalequipment(i.e.screwconveyor,rotaryvalves,etc.)excepttheblowerare
operaonal.Openthecompressedairvalveandacvatethesequencer.Starttheblowerandallow
dirtyairintotheltraonunit.Itisimperavethatyoufollowthesequenceofthisoperaon.
 14.3 Shutdown
Toshutdownthesystem,followthesesteps.Cutpowertothefan.Shutocompressedairtounit
andsequencer.Ifthereisadelayedpulseoperaon.Closeinletandoutletdampersinordernot
tohavedirtyairbackintothecollectorandavoidrisksofexplosion.Ifoponalequipmentsare
installed,shutdownsuchequipmentinreverseorder.
15 SAFETY
 15.1 Sta-Workers
Alltasksonthedustcollectormustbeperformedbyaminimumof2peopleandthis,atallmes.
Oncealldueshavebeencompleted,removealltoolsfrominsidethecollector.
WARNING!
Neverworkaloneinsidethedustcollector.Allstamustbe
accountedforpriortoclosingthecollectoraccessdoorsand
starngthecollector.

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Workersmustwearprotecveclothingandapparatussuchassafetygoggles,gloves,respiratory
equipment,etc.whenworkinginsidethecollector.
Instruconsinthisbookletmustbereadandunderstoodpriortoperformingtasksonthecollector.
 15.2 Electricalcomponents
Allelectricalcomponentsmustbeshutdownandmainbreakerlockedtoavoidanypossiblerisk
ofelectrocuonwhenhandlingorworkingonsuchcomponents.
 15.3 Explosivedusts
Ifthe dustto becollected isnaturallyexplosiveorinammable onceinside thecollector, an
explosionreliefvenngsystemand/orareexnguishingdevicewillberequired.Ifyouhaveany
doubtastothenatureofthedusttobecollected,callyourA.Q.C.representave.
 15.4 Anchors
Allseconsofthedustcollectorincludingtheoponalequipmentmustbeboltedtotheslabin
orderfortheunittobestableandsecuredshouldanexplosionoccurorincaseofhighwinds.
 15.5 Interiorinstallaon
Whenadustcollectorequippedwithanexplosionreliefvenngsystemisinstalledinsidethe
premises,theunitmustbeinstalledwithin3meters(10feet)ofanexteriorwallandtheexplosion
ventshastobeconnectedtoanexhaustductleadingoutside.Thisductmustbedesignedto
sustainthesamepressureastheonewithinthedustcollector.
Ifcleanairisreturnedbackintothepremises,disposionsmustbetakentoexhausttheairback
outsideshouldalterbedefecveoranyotherpossiblefailure.Asafetyaer-ltershouldbe
installedtoprotectthestaagainstaccidentalbreathingofunltereddusts.
Theairowcomingoutofthecollectorshouldbeheadedawayfromthesta,oces,pedestrian
walkwaysandanyotherareaaccessibletopeople.
 15.6 Sparkproducingacvies
Whenthedustorparclestobecollectedarestockedwithinthecollectororadjacentequipment,
there should be no welding process or any other spark or ame producing acvies around
thecollectorunlthesystemhasbeenshutdownandcleaned.Ifsuchoperaonshavetobe
performed,thelterelementshavetoberemovedfromthecollectorandstoredinadryarea.

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16 MAINTENANCE
WARNING!
RefertotheSafetyseconpriortoproceedingwithany
maintenanceorinspecononthedustcollector.
Aprevenvemaintenanceprogramshoulddismissmostemergencyshutdownsandextendthe
expectedlifemeofthesystem.Thechartscontainedinthischapterexplainthemaintenance
operaonsandproceduresincaseofproblemswiththesystem.
Theschedulesanddelaysinbetweenoperaonsmaybemodiedwithconclusiveexperimentsor
withaspecicusageofthecollector.
Ifyouhaveanyquesons,donothesitatetocallanA.Q.C.Inc.representave.
 16.1 Remplacementofcartridges
Thelteringcartridgeslifeexpectancyisonlylimitedtoit’sresistancetothedusttobeltered
whichinmostcasesdoesnotrequireperiodicchanges.
However,ifacartridgeshouldtearorbepunctured,replacementofsuchshouldbeperformedas
soonaspossible.
 16.2 Remplacementofcartridges
Priortochangingthecartridges,shutdowntheblower(s),screwconveyor(s),rotaryvalve(s),
controlpanel(s)andanyotheradjacentequipment.Lockallrelatedbreakersintheelectrical
panels.Shutdownandbleedthecompressedairlinefeedingthecollector.
Maintenancestamustwearprotecvegogglesandanadequaterespiratoryapparatus.Purgethe
systemofallgazesandvapoursotherthanair.Ensuretheairowisshutoandthattheinterior
temperatureisatasafelevel.
Followthesestepstoremovethecartridges.
WARNING!
Theuseofsafetyequipmentandadequateproteconis
neededforthechangingofcartridges.Thedirtycartridges
maybeheavierthanexpected.Usecauonwhenremoving
thecartridgestoavoidinjury.Donotdropthecartridges.

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1. Removethecartridgeroundaccessdoorbyunscrewingtheknob.Ensurethatyoudonot
damagetherubbergasketsealaroundtheaccessdoor.Startthisprocedurefromthetop
rowofcartridges.
2. Removethenutandwasherfromtheyoke’sthreadedrod.Setthemaside.
3. Slowlytwistthecartridgehalfaturntoremovethedepositofdustthatcouldbeontopof
the cartridge.
4. Gentlyslideoutthecartridgealongtheyoke.Repeatsteps3and4ifitisamodlewithtwo
(2)cartridgesdeep.
5. Disposalofdirtycartridgesmustbedoneaccordingtoenvironmentalregulaons.
6. Checkforanyexcessivedustaccumulaoninthehopperandcleanifnecessary.
Followthesestepstoinstallthenewcartridges.
Note :oldertypeMAXIFLOdustcollectorsareequippedwithopen/openandopen/closedtype
cartridges.MorerecenttypeMAXIFLOdustcollectorsareequippedwithopen/openandopen/
opentypecartridges.Ensureyouorderthepropertypeofcartridgesforreplacement.
Ensurethatyouhavethesamecartridgesasoriginallyinstalledinthecollector.
1. Slidethecartridgesontotheyokesstarngtheopen/opentype.Checkfortheintegrityofthe
cartridge seal.
2. Installthewasherandnutthatyousetasideearlier.Screwintheassemblyforaproperseal.
3. Installtheaccessdoorbackontothecabinetmakingsuretherubbergasketsealiswell
aached.Screwtheknobinandassesallcomponentsaresealed.
4. Switchpowerandcompressedairsystembackonbeforestarngtheunit.