Munters MLPlus Owner's manual

Brand: Munters

Model: MLPlus

Category: Split-system air conditioners

Type: Owner's manual

Originalinstructions

Operatingmanual

MLPlus

Dehumidicationsystem

TEN-MLP-E1505©MuntersEuropeAB2015

Tableofcontents

Tableofcontents...........................iii

1Introduction.................................1

1.1Denition...............................

1.2Aboutthismanual.....................

1.3Warnings...............................

1.4Warranty...............................

1.5Inspectionofdelivery..................

1.6Marking................................

1.7Technicalspecications..............

1.8Unintendeduse........................

2Safety.........................................4

2.1Intendeduse...........................

2.2Safeinstallation,operationand

maintenance...........................

2.3Residualrisks..........................

2.4Warningsigns.........................

2.5Quickstop..............................

3Systemdesignandfunction..............8

3.1Mainfunction..........................

3.2Systemdesign.........................

3.3Pre-andpost-treatment..............

4Maincomponentsdescription............10

4.1Dehumidier...........................

4.1.1Principleofoperation..........

4.1.2Dehumidiercomponents.....

4.1.3Markingofconnections........

4.2Watercoils.............................

4.2.1Productdescription............

4.2.2Coilmaintenance..............

4.3Directexpansionrefrigeration........

4.4Electricheater.........................

4.5Humidier..............................

4.6Supplyfan..............................

4.7Filters...................................

4.7.1Filtertypes......................

4.7.2Filtermaintenance.............

4.8Dampers...............................

5Operation....................................19

5.1Mainpowerswitch.....................

5.2Controlsystem........................

5.3HMIconnection........................

5.4Operatorpanel........................

5.5Starttheunit...........................

5.6Stoptheunit............................

5.7Quickstop..............................

6Serviceandmaintenance.................22

6.1Safety..................................

6.2General................................

6.3Serviceoptions........................

6.4Extendedwarranty....................

6.5Cleaning...............................

6.6Maintenanceschedule................

6.7Preventivereplacements.............

7Scrappinganddisposal...................26

8ContactMunters............................27

TEN-MLP-E1505Tableofcontentsiii

MLPlusDehumidicationsystem

1Introduction

1.1Denition

TheDehumidicationsystemdescribedinthismanualishereafterreferredtoasthe“unit”.

1.2Aboutthismanual

Thisoperatingmanualcontainsimportantsafetyinformation,aproductdescriptionandmaintenance

instructionsforthedeliveredunit.

Readallrelevantpartsofthismanualbeforeoperatingorperforminganyworkontheunit.Observanceof

thisinformationwillhelpyoutoavoiddanger,tominimiserepaircostanddowntime,andtoincreasethe

reliabilityandtheservicelifeoftheunit.

Thismanualshouldbestoredinapermanentlocationclosetotheunit.

Thismanualdoesnotdescribeinfullallthemaintenanceworkrequiredtoguaranteethelongevityand

reliabilityofthistypeofequipment.AlwayscontactMuntersforserviceandrepairs,toensuresafeandlong

lastingoperationoftheunit.

Installationinstructionscanbefoundinthecorrespondingsupplement.

Thecontentsofthismanualcanbechangedwithoutpriornotice.

NOTE!Thismanualcontainsinformationwhichisprotectedbycopyrightlaws.Itisnotallowedtoreproduceor

transmitanypartofthismanualwithoutwrittenconsentfromMunters.

Sendanycommentsregardingthismanualto:

MuntersEuropeAB

TechnicalDocumentation

P.O.Box1150

SE-16426KISTASweden

e-mail:t-doc@munters.se

1IntroductionTEN-MLP-E1505

MLPlusDehumidicationsystem

1.3Warnings

Informationaboutdangersareinthismanualindicatedbythecommonhazardsymbol:

W W

ARNING! ARNING!

ARNING!

Indicatesapossiblehazardthatcanresultinseverepersonalinjuryordeath.

CA CA

UTION! UTION!

UTION!

Indicatesapossiblehazardthatcanresultindamagetotheunitorotherproperty,orcauseenvironmental

damage.

NOTE!Highlightssupplementaryinformationforoptimaluseoftheunit.

1.4Warranty

ThewarrantyisbasedonthetermsofsaleanddeliveryofMunters.Thewarrantyisnotvalidifrepairsor

modicationsarecarriedoutwithoutthewrittenagreementofMunters,oriftheunitdoesnotoperateunder

theconditionsagreedwithMunters.Damagesresultingfromnegligence,poormaintenanceorfailureto

complywiththerecommendationswillnotbecoveredbythewarranty.

Itisaconditionofthewarrantythattheunitforthefullwarrantyperiodisservicedandmaintainedbya

qualiedMuntersengineerorMuntersapprovedengineer.Accesstospecicandcalibratedtestequipment

isnecessary.Theserviceandmaintenancemustbedocumentedforthewarrantytobevalid.

Thewarrantyislimitedtoafreeexchangeofpartsorcomponentswhichhavefailedasaresultofdefects

inmaterialsorworkmanship.

Commissioning/Start-upinspection"S"byMuntersismandatorytovalidatethefullwarranty.

AlwayscontactMuntersforserviceorrepair.Operatingfaultscanoccuriftheunitismaintained

insufcientlyorincorrectly.

1.5Inspectionofdelivery

■Inspectthedeliveryandcomparewiththedeliverynote,orderconrmationorotherdelivery

documentation.Makesurethateverythingisincludedandnothingisdamaged.

■ContactMuntersimmediatelyifthedeliveryisnotcompleteordamagedinordertoavoidinstallation

delays.

■Removeallpackagingmaterialfromtheunit,andmakesurethatnodamagehasoccurredduring

transportation.

■AnyvisibledamagemustbereportedinwritingtoMunterswithin3daysandpriortoinstallationof

theunit.

■Disposeofthepackagingmaterialaccordingtolocalregulations.

TEN-MLP-E1505Introduction2

MLPlusDehumidicationsystem

1.6Marking

Type

Fa br. No. 1005 190XXX XXXXX

3N ~ 400 V 50 Hz

0,78 kW

Ma x (A)

10,3/0,8/0,8

Munte rs Europe AB

Is a fjords ga ta n 1

164 26 Kis ta , S wede n

IP 33

Fa br. ye a r

1,8 kW

Ma de in S wede n

MLT350 P lus 9A

2010

Ma x (kW)

2,58 kW

Figure1.1ExampleofidenticationplatecontentFigure1.2Identicationplateposition

1.7Technicalspecications

Thetechnicalspecicationsfortheunitcanbefoundinthecorrespondingsectionofthemanual.

1.8Unintendeduse

■Theunitisnotintendedforoutdoorinstallation.

■Theunitisnotintendedforuseinclassiedareaswhereexplosionsafetycompliantequipmentis

required.

■Theunitmustnotbeinstallednearanyheatgeneratingdevicesthatcancausedamagetotheequipment.

■Theunitisnotintendedfortreatingairpollutedwithsolvents,dustorotheraggressive,corrosiveor

abrasiveparticles.

3IntroductionTEN-MLP-E1505

MLPlusDehumidicationsystem

2Safety

2.1Intendeduse

TheunitdeliveredbyMuntersmustonlybeusedforthetreatmentofair.Thisincludesltering,heating,

cooling,humidifying,dehumidifyingandtransportingair.Muntersexplicitlyrulesoutanyotheruse.

Theunitisdesignedtomeetthesafetyrequirements,directivesandstandardslistedintheEUDeclarationof

Conformity.

NomodicationoftheunitisallowedwithoutpriorapprovalbyMunters.Attachmentorinstallationof

additionaldevicesisonlyallowedafterwrittenagreementbyMunters.

Theconditionsofoperationspeciedinthetechnicalspecicationsmustbeobservedabsolutely.

Anyotheruseoftheequipmentcancausepersonalinjuryanddamagetotheunitandotherproperty.

2.2Safeinstallation,operationandmaintenance

Greatefforthasbeenplacedonthedesignandmanufactureoftheunit,tocomplywithapplicablesafety

aspectsforthistypeofequipment.

Theinformationinthismanualincludessuggestionsforbestworkingpracticeandshallinnowaytake

precedenceoverindividualresponsibilitiesorlocalregulations.

Duringoperationandotherworkwithamachineitisalwaystheresponsibilityoftheindividualtoconsider:

■Thesafetyofallpersonsconcerned.

■Thesafetyoftheunitandotherproperty.

■Theprotectionoftheenvironment.

Alwayscarryoutriskassessmentsbeforedoinganyworkontheunit.

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ARNING! ARNING!

ARNING!

-Theunitmustnotbesplashedwithorimmersedinwater.

-Theunitmustneverbeconnectedtoavoltageorfrequencyotherthanthatforwhichitwasdesigned.Refertothe

identicationplate.Linevoltagethatistoohighcancauseanelectricalshockhazardanddamagetotheunit.

-Donotinsertngersoranyobjectsintotheairvents.

-Allelectricalinstallationsmustbecarriedoutbyaqualiedelectricianandinaccordancewithlocalregulations.

-Thedehumidiercanrestartautomaticallyafterapowercut.Alwayssetandlockthemainpowerswitchinthe

OFFpositionbeforecarryingoutanyservicework.

-Useonlyapprovedliftingequipmenttopreventpersonalinjuryanddamagetotheequipment.

-AlwayscontactMuntersforserviceorrepair.

W W

ARNING! ARNING!

ARNING!

Installation,adjustments,maintenanceandrepairsmustonlybecarriedoutbyqualiedpersonnelwhoare

awareoftherisksinvolvedwhenworkingwithequipmentoperatingwithhighelectricalvoltageandhighmachine

temperatures.

TEN-MLP-E1505Safety4

MLPlusDehumidicationsystem

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ARNING! ARNING!

ARNING!

Commissioningandinitialstart-upoftheunitmustbecarriedoutbyauthorizedpersonnelonly.

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ARNING!

Theunitcontainsrotatingfansandothermovingparts.

Keephandsawayfromfanbladesatalltimeswhileunitison.DONOTserviceunituntilthefanhascompletely

stopped.

AlwayssetandlockthemainpowerswitchintheOFFpositionbeforecarryingoutanyservicework.

Topreventpersonalinjury,theunitmustberunwithallpaneldoorsclosedandallremovablepanelsandprotective

gridsproperlyinplace.

Fansandothermovingpartscanstartautomaticallyandwithoutwarning.

W W

ARNING! ARNING!

ARNING!

Cleaningagents,coolingmedia,oilandgreasearesubstancesthataredangeroustopersonalhealthandtothe

environment.Theymustnotbeallowedtodrainawayintothesoilorthepublicsanitarysystem.Thedisposalof

suchsubstancesmustbeeffectedinaccordancewithlocalandnationallawandregulations.

CA CA

UTION! UTION!

UTION!

Serviceandmaintenanceworkshouldonlybecarriedoutbyqualiedandtrainedpersonnel.Operatingfaultscan

occuriftheunitismaintainedinsufcientlyorincorrectly.

5SafetyTEN-MLP-E1505

MLPlusDehumidicationsystem

2.3Residualrisks

Inordertoavoidthepossibledangersinoperatingormaintainingtheunit,necessaryprotectionshavebeen

foreseen.However,therearestillsomeresidualrisksthatallpersonnelworkingwiththeunitmustbeaware

of:

Thehandlingofuidsinrefrigerating,heatingorcoolingcircuitscanbedangerous.Pleasestudythe

informationrelevantforeachtypeofuidtoavoiddangers.

Hotorcoldsurfacescancauseinjuries.Beforeintervening,waituntiltemperaturesbecomenormaloruse

protectiveclothing.

Sharpsteeledgesonboxesorcoilscancausecuts.Useprotectivegloves,particularlyduringdisassembly

orassembly.

Whenworkingwithornearfans,beawarethatremainingairowthroughtheunitcancausespontaneous

rotationofthefansandtherebycausingpersonalinjury.

Doorsforoverpressurecompartmentscanbeequippedwithadditionalsafetylocksagainstaccidental

opening.Makesurethatsuchlocksareclosedbeforestartingtheunit.

Whenworkingwithltersorinadustyarea:Toprotecttheuserfromdust,wearasuitableCEmarkedface

maskselectedandttedinaccordancewiththeapplicablesafetystandards.

Usehearingprotectionaccordingtoapplicablesafetystandardswhenworkinginanoisyenvironmentto

avoidhearingimpairment.

Dampersopenandcloseautomatically.Keephandsclearofthedamperswhentheyaremoving.

TEN-MLP-E1505Safety6

MLPlusDehumidicationsystem

2.4Warningsigns

Thefollowingwarningsignscanbepresentontheunit,towarntheusersofresidualriskswhichcancause

seriousinjuryordeath.Makesurethatallpersonnelworkingwithorneartheunitareawareofthemeaning

ofeachsign.

Figure2.1Riskofpersonal

injuryduetoelectricshock.

Figure2.2Hotairowor

surface.

Figure2.3Unitstarts

automatically.

Figure2.4Pinchhazard.

2.5Quickstop

Theunitcaninanemergencybestoppedusingthemainpowerswitch,seesection5.1,Mainpowerswitch.

CA CA

UTION! UTION!

UTION!

Onlyusethemainpowerswitchtostoptheunitinthecaseofanemergency.Thenormalshutdownsequencewill

notbefollowed.Thefansstopandtheheatercanbeveryhot,whichcanresultindamagetotheheaterandother

componentsclosetoit.

7SafetyTEN-MLP-E1505

MLPlusDehumidicationsystem

3Systemdesignandfunction

3.1Mainfunction

TheMuntersPlusunitisdesignedtocontroltheairqualityinarchives,laboratories,cleanroomsorother

applicationswithhighdemandsonclimate.

Allunitsarealwaysdeliveredwithadehumidier.Othercomponentssuchascoolingandheatingcoils,

humidiersorsupplyfansaredelivereddependingontheindividualsystemspecication.

Thesystemissetupandoperatedfromtheoperatorpanel.Wallsensorsorductsensorsmeasurethe

temperatureandhumidityoftheprocessair.Thecontrolsystemandelectricalsafetyfunctionsforallthe

componentsareplacedintheelectricalpanel.

Allcomponentsareregulatedproportionatelyandconguredtoachieveoptimalcapacityandenergyuse

efciency.Theelectricheaterinthedehumidierhasthyristorcontrolandtheelectricheatersfortempering

theairarepulsecontrolled.Thesupplyairfanrunscontinuallytoensurepreciseclimatecontrol.Regulation

canbetimecontrolledonaweekly,monthlyandstipulatedfull-daybasisaswellaswinter/summerperiods

withspecicoperationaltemperatureandhumiditysettings.Severalpossibilitiesexistforconnectingto

buildingmanagementsystemsforcontrollingandmonitoringthefunctions.ContactyournearestMunters

representativeformoreinformationonautomaticsystemsorbusconnections.

3.2Systemdesign

1 2

6 5

Figure3.1MLPlussystemdesignexample*

1.Filter5.Post-coolingcoil

2.Pre-heatingcoil6.Post-heatingcoil

3.Pre-coolingcoil7.Humidier

4.Dehumidier8.Supplyfan

*Individualsystemsarebuilttospecication,andcanbedifferentfromthisexample.

TEN-MLP-E1505Systemdesignandfunction8

MLPlusDehumidicationsystem

3.3Pre-andpost-treatment

Pre-andpost-treatmentoftheprocessaircanbeperformedbythefollowingfunctionalcomponents:

■Inletdamperstoenableisolationoftheunitfromtheairow.Thedampersareinstalledontheoutside

oftheunit.

■Amixingboxallowingmixingfreshairwithrecirculationair.

■Heatingcoil:Thecoilcanbeelectricorusehotwaterasheatingmedium.Inthecaseofhotwater,the

coilmustbeconnectedtoanexternalheatingmediumsupply.

■Coolingcoil:Thecoiluseschilledwater,possiblymixedwithglycol.Thecoilmustbeconnectedto

anexternalmediumsupply.

■Humidicationbyevaporationorsteaminjectioninordertoachievetheprocessairqualityspecication

duringdryambientconditions.Seethehumidiersupplement.

■Filtersforvariousairqualityspecications.Filterscanbeequippedwithpressuredropsensorstoenable

"blockedlter"alarm.

■Asupplyfantoachievetheexternalpressurerequirement.

9SystemdesignandfunctionTEN-MLP-E1505

MLPlusDehumidicationsystem

4Maincomponentsdescription

NOTE!Somecomponentsareoptional,andindividualsystemsarebuilttospecication.

NOTE!Allcomponentpicturesareexamples,andmaynotcorrespondtoindividualunits.

4.1Dehumidier

4.1.1Principleofoperation

Figure4.1Rotorprinciple

1.Processair

2.Dryair

3.Reactivationair

4.Wetair

Thedesiccantrotoristheadsorptiondehumidifyingcomponentintheunit.Therotorstructureis

comprisedofalargenumberofsmallairchannels.

Thedesiccantrotorismadeofacompositematerialthatishighlyeffectiveinattractingandretainingwater

vapour.Therotorisdividedintwozones.Theairowtobedehumidied,processair,passesthroughthe

largestzoneoftherotorandthenleavestherotorasdryair.Sincetherotorrotatesslowly,theincomingair

alwaysmeetsadryzoneontherotor,thuscreatingacontinuousdehumidicationprocess.

Theairowthatisusedtodrytherotor,reactivationair,isheated.Thereactivationairpassesthrough

therotorintheoppositedirectiontotheprocessairandleavestherotoraswetair(warm,moistair).This

principleenablesthedehumidiertoworkeffectively,evenatfreezingtemperatures.

TEN-MLP-E1505Maincomponentsdescription10

MLPlusDehumidicationsystem

Figure4.2Airowoverview

1.Processair

2.Dryair

3.Reactivationair

4.Wetair

11MaincomponentsdescriptionTEN-MLP-E1505

MLPlusDehumidicationsystem

4.1.2Dehumidiercomponents

Figure4.3Maincomponents

1.Electricalpanel9.

Processairfanimpeller

2.Reactivationheater10.

Processairlter

3.Drivemotor11.Lowerrotorcover

4.Pulley,beltdrive12.Roller,beltguide

Reactivationairlter

13.Drivebelt

Reactivationairfanimpeller

14.Rotor

Reactivationairfanmotor

15.Rotor,sealingring

Processairfanmotor

16.Upperrotorcover

NOTE!ML180,ML270,MLT350andML420eachhasjustonefanmotorwhichisplacedbetweenthefan

impellers.Theelectricalpanelcaninsomecaseshaveadifferentposition.

TEN-MLP-E1505Maincomponentsdescription12

MLPlusDehumidicationsystem

4.1.3Markingofconnections

Examplesoflabelswhichcanbeplacedonthedehumidierairinletsandoutlets.

Figure4.4Labelsforairinletsandoutlets

1.Processairinlet

2.Dryairoutlet

3.Reactivationairinlet

4.Wetairoutlet

13MaincomponentsdescriptionTEN-MLP-E1505

MLPlusDehumidicationsystem

4.2Watercoils

4.2.1Productdescription

Theunitcanhavewatercoilsforcoolingandheating.Thecoolingorheatingisonlyregulatedifthesupply

airfanisrunning.

CA CA

UTION! UTION!

UTION!

Ifthereisariskoffreezingwhenuntreatedoutsideairisused,afrostprotectionmonitorsensormustbetted.The

coilsintheunitcanbeseriouslydamagedifthisisnotdone.

Allunitswithhotwatercoilsarealwaysdeliveredwithaninsertionsensorandoutletforaninsertionsensor.

Theheaderisprovidedwithapluggedoutletforventinganddraining.Ifthereisariskoffreezing,thesensor

mustbettedandconnectedaccordingtothewiringdiagramfortheunit.Therecanbeariskoffreezingif

theprocessairistakendirectlyfromoutside.

Ifthewaterinacoilfreezesthiscouldcauseseriousdamage.Afrozencoilmustalmostalwaysbereplaced.

Thewarrantyisnolongervalidevenifthecracksarenotvisible.

CA CA

UTION! UTION!

UTION!

Hotandcoldwatersupplylinesmustonlybedesignedandexecutedbyqualiedpersonneltakingintoaccount

therespectiverelevantlocalregulations.

4.2.2Coilmaintenance

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ARNING! ARNING!

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Coilnshavesharpedges.Alwayswearprotectivegloveswhenworkingwithcoils.

Checkforsignsofcorrosiononsurfaceswithanges.Cleanandrepairifnecessary.

Ifapplicable,removethedropletseparator.

Inspecttheinletsurface(towardsthecoolingcoil).Ifdirty,rinsewithwarmwater.

Airinthepipingreducesthecapacityofthecoil.Ventofftheairviatheairnippleonthehighesthorizontal

partoftheheader.

Inthecaseofalongoperationstoporwhenthetemperatureisbelowfreezingpoint,emptythewaterout

ofthecoil.Dothisviathenippleonthelowesthorizontalpartoftheheader.Notethatsomecoilscannot

bedrained.

CA CA

UTION! UTION!

UTION!

Donotattempttocleanthewatercoilsmechanically.

NOTE!Inthecaseofdamage,contactMuntersService.Donotattempttocarryoutrepairs.

1.Thecoilsshouldbecheckedatleastonceayear,andcleanedifrequired.

2.Someofthedustwhichpassesthroughthelterscomestorestonthecoilcells.Thislayerofdust

affectstheairowandreducestherateofexchangeleadingtodecreasedunitefciency.

3.Thecoilsshouldthereforebekeptclean.Cleaningcanbedonebyusingavacuumcleaner,lowpressure

compressedairorlowpressurewaterandasoftbrush.Donotforgettocleantheunitinternallyafterthe

coilcleaning.Neveruseahighpressurecleaner,thiswilldamagethecoilns.

TEN-MLP-E1505Maincomponentsdescription14

MLPlusDehumidicationsystem

4.Furthermore,inthecaseofcoolingcoils,cleanthedriptrayandsiphonforthecondensationwateronce

peryear.Notethatsiphonsneedtoberelledwithwaterafterthewinterseason.

4.3Directexpansionrefrigeration

AppliestounitswithDXrefrigeration.

AdetaileddescriptionoftheDXcoolingfunctionandthecorrespondingcomponentsisfoundintheDX

Supplement.

ImportantinformationfortheoperatoroftheDXrefrigerationsystemisfoundintheDXSupplement.

ThemandatoryCommissioningandServiceLogbookisalsoavailableintheDXSupplement.

W W

ARNING! ARNING!

ARNING!

StrictlegalrequirementsapplyfortheoperationofDXcoolingsystemscontaininguorinatedgreenhousegases.

ReadmoreintheDXSupplement.

4.4Electricheater

Allelectricheatershaveminimallytwohightemperaturecut-outs,anautomaticresettingfunctionandcan

bemanuallyreset.Thehightemperaturecut-outcanberesetonthecoverofalltheelectricheaters.

Theelectricheaterpowerisproducedonatimebasisusingpulse-pausetechnology.Whenheatisrequired

theinbuiltregulationequipmentsignalsforfullpower(pulse)forasettime,dependingontheheat

requirement.Iftheheatrequirementincreases,thepulsetimeincreasesandthepausetimedecreases.When

theheatrequirementisreduced,thepulsetimedecreasesandthepausetimeincreases.

15MaincomponentsdescriptionTEN-MLP-E1505

MLPlusDehumidicationsystem

4.5Humidier

Humidiersareusedasneededtoachievetheprocessairqualityspecication.

Unitscanbeequippedwitheitheranevaporativehumidierorasteamhumidier.

Formoreinformationabouthumidiersifapplicable,seetherelevantdocumentationunderthesection

Othercomponents.

4.6Supplyfan

Theunitisequippedwithaplugtypesupplyfan.Thefanisdrivenbyanelectricmotorwhichiscontrolled

byafrequencyconverter.Thismakesitpossibletoadjusttheairpressureandairowfromtheoperator

paneltoachievetheexternalpressurerequirement.

Forspecicinformationaboutthefan,seetheOEMmanualunderthesectionOthercomponents.

TEN-MLP-E1505Maincomponentsdescription16

MLPlusDehumidicationsystem

4.7Filters

4.7.1Filtertypes

Figure4.5BaglterFigure4.6Panellters

4.7.2Filtermaintenance

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ARNING! ARNING!

ARNING!

Thereisarehazard,orriskofunitmalfunction,ifltersaremaintainedinsufcientlyorincorrectly.

W W

ARNING! ARNING!

ARNING!

Whenreplacingtheltersorworkinginadustyarea:Toprotecttheuserfromdust,wearasuitableCEmarkedface

maskselectedandttedinaccordancewiththeapplicablesafetystandards.

Theltersrequireregularreplacement.Thefrequencydependsontheamountofdustintheairandthe

operatingconditions.

Blockedlterscanreducetheairowintheunit.Incorrectairowwillreducethecapacityandtheenergy

efciencyoftheunit.

Checkthedegreeofdirtaccumulationbymeasuringthedifferentialpressureorbyinspectingthelters

visually.

Altermonitorwillactivateanalarmifthepressuredropacrossthelteristoogreat.

ThepermittedpressuredropsetpointissetbyMuntersatthefactory.Ifthelterclassicationsarechanged,

adjustthesetpointtosuitthenewlter.

Replacethelterswhen:

■Finalpressuredropisreached.

■Thereisalteralarm.

■Thelterisdamagedandairispassingwithoutltration.

Cleantheltersection,checkthatthereisnodirtbeyondthelter.

Makesurethattheframesaresealedandifnecessaryreplacetheseals.

Replacethelterandcheckitstightness.

17MaincomponentsdescriptionTEN-MLP-E1505

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Munters MLPlus Owner's manual

Brand: Munters

Model: MLPlus

Category: Split-system air conditioners

Type: Owner's manual

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Munters MLPlus Owner's manual

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