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Munters 190TGB-1034-L1604 Owner's manual

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Originalinstructions
Usermanual
ML180,ML270,MLT350
Desiccantdehumidier
190TGB-1034-L1604©MuntersEuropeAB2016
Importantuserinformation
Intendeduse
Muntersdehumidiersareintendedtobeusedforthe
dehumidicationofair.Anyotheruseoftheunit,or
usewhichiscontrarytotheinstructionsgiveninthis
manual,cancausepersonalinjuryanddamagetotheunit
andotherproperty.
Nomodicationoftheunitisallowedwithoutprior
approvalbyMunters.Attachmentorinstallation
ofadditionaldevicesisonlyallowedafterwritten
agreementbyMunters.
Warranty
Thewarrantyperiodisvalidfromthedatetheunit
leftourfactory,unlessotherwisestatedinwriting.
Thewarrantyislimitedtoafreeexchangeofpartsor
componentswhichhavefailedasaresultofdefectsin
materialsorworkmanship.
Allwarrantyclaimsmustincludeproofthatthe
faulthasoccurredwithinthewarrantyperiodand
thattheunithasbeenusedinaccordancewiththe
specications.Allclaimsmustspecifytheunittypeand
fabricationnumber.Thisinformationisstampedonthe
identicationplate,seesectionMarking.
Itisaconditionofthewarrantythattheunitforthefull
warrantyperiodisservicedandmaintainedbyaqualied
MuntersengineerorMuntersapprovedengineer.
Accesstospecicandcalibratedtestequipmentis
necessary.Theserviceandmaintenancemustbe
documentedforthewarrantytobevalid.
AlwayscontactMuntersforserviceorrepair.Operating
faultscanoccuriftheunitismaintainedinsufcientlyor
incorrectly.
Safety
Informationaboutdangersareinthismanualindicated
bythecommonhazardsymbol:
W W
W
ARNING! ARNING!
ARNING!
Indicatesapossibledangerthatcanleadtopersonalinjury.
CA CA
CA
UTION! UTION!
UTION!
Indicatesapossibledangerthatcanleadtodamagetothe
unitorotherproperty,orcauseenvironmentaldamage.
NOTE!Highlightssupplementaryinformationforoptimal
useoftheunit.
ConformitywithDirectives
Thedehumidierisinconformitywiththeessential
safetyrequirementsoftheMachineryDirective
2006/42/EC,andinconformitywiththeprovisionsof
theEcodesignDirective(ErP)2009/125/EC,andof
theEMCDirective2004/108/EC.Thedehumidieris
manufacturedbyanorganizationcertiedaccordingto
ISO9001andISO14001.
Copyright
Thecontentsofthismanualcanbechangedwithout
priornotice.
NOTE!Thismanualcontainsinformationwhichis
protectedbycopyrightlaws.Itisnotallowedtoreproduceor
transmitanypartofthismanualwithoutwrittenconsentfrom
Munters.
Pleasesendanycommentsregardingthismanualto:
MuntersEuropeAB
TechnicalDocumentation
P.O.Box1150
SE-16426KISTASweden
e-mail:t-doc@munters.se
iiImportantuserinformation190TGB-1034-L1604
Tableofcontents
Importantuserinformation...............ii
Intendeduse...........................
ii
Warranty...............................
ii
Safety..................................
ii
ConformitywithDirectives............
ii
Copyright..............................
ii
Tableofcontents...........................iii
1Introduction.................................1
1.1Aboutthismanual.....................
1
1.2Unintendeduse........................
1
1.3Safetyandcautions...................
1
1.4Markings...............................
3
1.5Supervisionofoperation..............
3
1.6Faultindications.......................
3
2Dehumidierdesign.......................4
2.1Productdescription...................
4
2.2Functiondescription..................
4
2.3Maincomponents.....................
5
3Transport,inspectionandstorage.......6
3.1Transport..............................
6
3.2Inspectionofdelivery..................
6
3.3Storingtheequipment................
6
4Installation...................................7
4.1Safety..................................
7
4.2Siterequirements.....................
7
4.3Foundation............................
8
4.4Mirrorhandedductconnections......
8
4.5Ductinstallation.......................
9
4.5.1Generalrecommendations...
9
4.5.2Ductforoutdoorairinlet.......
12
4.5.3Ductforwetairoutlet...........
12
4.6Precautionarymeasuresforunitswith
LIdesiccantrotor......................
13
4.7Electricalconnections................
13
4.8Externalhumiditysensor.............
13
5Commissioning.............................15
5.1Pre-startchecks.......................
15
5.2Airowcheckandadjustment........
16
6Operation....................................17
6.1General................................
17
6.2Quickstop..............................
17
6.3Beforestarting.........................
17
6.4Operatorpanel........................
18
6.5RH98operatorpanel..................
19
6.6Operatingtheunit.....................
19
6.6.1Manualmode..................
19
6.6.2Automaticmode–humidity
sensorconnected..............
20
6.6.3Automaticmode-RH98.......
20
7Serviceandmaintenance.................21
7.1Safety..................................
21
7.2General................................
21
7.3Serviceoptions........................
21
7.4Extendedwarranty....................
22
7.5Cleaning...............................
22
7.6Serviceandmaintenanceschedule..
22
7.7Filterchange...........................
24
8Faulttracing.................................25
8.1General................................
25
8.2Safety..................................
25
8.3Faulttracinglist........................
26
9Technicalspecication....................27
9.1Dimensionsandservicespace.......
27
9.2Capacitydiagrams....................
28
9.3Technicaldata.........................
29
9.4Sounddata.............................
31
9.4.1SounddataML180............
31
9.4.2SounddataML270............
32
9.4.3SounddataMLT350...........
32
10Scrapping....................................33
Appendix1Options.............................34
1.1General................................
34
1.2Runningtimemeter...................
34
1.3Humiditycontrolsystem..............
34
1.3.1Introduction....................
34
1.3.2Transmitter.....................
34
1.3.3Controlunit.....................
34
1.3.4Setpointsandcontrol
parameters.....................
35
1.3.5Display/changesetpointfor
relativehumidity...............
36
190TGB-1034-L1604Tableofcontentsiii
1.3.6Display/changeother
parameters.....................
36
1.3.7Processalarms................
38
2ContactMunters............................39
ivTableofcontents190TGB-1034-L1604
DehumidierML180-MLT350
1Introduction
1.1Aboutthismanual
Thismanualiswrittenfortheuserofthedehumidier.Itcontainsnecessaryinformationforhowtoinstall
andusethedehumidierinasafeandefcientway.Readthroughthemanualbeforethedehumidieris
installedandused.
ContactyournearestMuntersofceifyouhaveanyquestionsregardingtheinstallationortheuseofyour
dehumidier.
Thismanualmustbestoredinapermanentlocationclosetothedehumidier.
1.2Unintendeduse
■Thedehumidierisnotintendedforoutdoorinstallation.
■Thedehumidierisnotintendedforuseinclassiedareaswhereexplosionsafetycompliantequipment
isrequired.
■Thedehumidiermustnotbeinstallednearanyheatgeneratingdevicesthatcancausedamagetothe
equipment.
1.3Safetyandcautions
Everymeasurehasbeentakeninthedesignandmanufactureofthedehumidiertoensurethatitmeetsthe
safetyrequirementsofthedirectivesandstandardslistedintheECDeclarationofConformity.
Theinformationinthismanualshallinnowaytakeprecedenceoverindividualresponsibilitiesorlocal
regulations.
Duringoperationandotherworkwithamachineitisalwaystheresponsibilityoftheindividualtoconsider
thefollowing:
■Thesafetyofallpersonsconcerned.
■Thesafetyoftheunitandotherproperty.
■Theprotectionoftheenvironment.
ThetypesofdangersthatareindicatedinthismanualaredescribedinthesectionImportantuserinformation.
190TGB-1034-L1604Introduction1
DehumidierML180-MLT350
W W
W
ARNING! ARNING!
ARNING!
-Theunitmustnotbesplashedwithorimmersedinwater.
-Theunitmustneverbeconnectedtoavoltageorfrequencyotherthanthatforwhichitwasdesigned.Refertothe
identicationplate.Linevoltagethatistoohighcancauseanelectricalshockhazardanddamagetotheunit.
-Donotinsertngersoranyobjectsintotheairvents.
-Allelectricalinstallationsmustbecarriedoutbyaqualiedelectricianandinaccordancewithlocalregulations.
-Thedehumidiercanrestartautomaticallyafterapowercut.Alwayssetandlockthemainpowerswitchinthe
OFFpositionbeforecarryingoutanyservicework.
-Useonlyapprovedliftingequipmenttopreventpersonalinjuryanddamagetotheequipment.
-AlwayscontactMuntersforserviceorrepair.
2Introduction190TGB-1034-L1604
DehumidierML180-MLT350
1.4Markings
(GB)CHANGE FILTER
(GB)CHANGE FILTER
1
2
3
4
5
6
6
Figure1.1Identicationplateandmarkings
(GB) CHANGE FILTER
(SW) BYT FILTER
(FR) REMPLACER LE FILTER
(DE) FILTER AUSWECHSELN
6
Figure1.2Replacelter
3
Figure1.3Labelsforairinletsandoutlets
1.Unitidenticationplate
4.Processairinlet
2.Dryairoutlet5.Reactivationairinlet
3.Wetairoutlet
6.Replacelter
1.5Supervisionofoperation
Thedehumidieriscontrolledandmonitoredusingtheoperatorpanellocatedonthefrontoftheunit.
1.6Faultindications
Faultsareclearlyindicatedontheoperatorpanel,seesection6.4,Operatorpanel.
Alarmsrelatingtorelativeairhumidityaregiveninthedisplayofthehumiditycontrolsystem(ifinstalled),
seeappendix1.3,Humiditycontrolsystem.
190TGB-1034-L1604Introduction3
DehumidierML180-MLT350
2Dehumidierdesign
2.1Productdescription
ThedesiccantdehumidiersintheMLserieshavebeendevelopedtoeffectivelydehumidifytheairin
environmentsrequiringlowairhumidity.
Thedehumidierisequippedwithanencapsulatedrotorunit.Therotorcasingisconstructedofdurable
thermosetplasticandcontainsisolatedsectionsthatprovideaprecisebalanceforthedehumidication,
reactivationandheatrecoveryairows.
ThedehumidierismanufacturedinaccordancewithuniformEuropeanstandardsandestablished
requirementsforCE-marking.
2.2Functiondescription
1.Processair
2.Dryair
3.Reactivationair
2
4
3
1
Figure2.1Internalairows
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.
4Dehumidierdesign190TGB-1034-L1604
DehumidierML180-MLT350
2.3Maincomponents
12
13
11
14
10
17
2
15
1
9
16
4
5
8
6
7
3
Figure2.2Maincomponents
1.
Sealingring,rotor
10.
Reactivationairlter
2.Upperrotorcover11.Reactivationairimpeller
3.Electricalcontrolpanel12.Fanmotor
4.Reactivationheater13.Processairimpeller
5.
Drivemotor14.
Processairlter
6.
Switch(rocker,2-pole)
15.Lowerrotorcover
7.
Temperatureindicator16.Drivebelt
8.Pulley,beltdrive17.Rotor
9.Roller,beltguide
190TGB-1034-L1604Dehumidierdesign5
DehumidierML180-MLT350
3Transport,inspectionandstorage
3.1Transport
Thedehumidierisdeliveredonapalletandmustbehandledcarefully.Allpaneldoorsontheunitmustbe
closedduringtransport.Providedthatthedehumidierisstillsecuredtoitsdeliverypallet,itcanbemoved
usingafork-lifttruck.
W W
W
ARNING! ARNING!
ARNING!
Movethedehumidiercarefullyasthereisariskofthedehumidiertippingover.
Figure3.1Correctlengthonforkliftarms
Weightofthedehumidiercanbefoundinsection9.1,Dimensionsandservicespace.
3.2Inspectionofdelivery
■Doaninspectionofthedeliveryandcomparewiththedeliverynote,orderconrmationorother
deliverydocumentation.Makesurethateverythingisincludedandnothingisdamaged.
■ContactMuntersimmediatelyifthedeliveryisnotcompleteordamagedinordertoavoidinstallation
delays.
■Removeallpackagingmaterialfromtheunit,andmakesurethatnodamagehasbeenmadeduring
transportation.
■AnyvisibledamagemustbereportedinwritingtoMunterswithin3daysandpriortoinstallationof
theunit.
■Discardthepackagingmaterialaccordingtolocalregulations.
3.3Storingtheequipment
Followtheseinstructionsifthedehumidieristobestoredpriortoinstallation:
■Placethedehumidierinanuprightpositiononahorizontalsurface.
■Re-usethepackagingmaterialtoprovideprotectionfortheunit.
■Protectthedehumidierfromphysicaldamage.
■Storethedehumidierundercoverandprotectitfromdust,frost,rainandaggressivecontaminants.
6Transport,inspectionandstorage190TGB-1034-L1604
DehumidierML180-MLT350
4Installation
4.1Safety
W W
W
ARNING! ARNING!
ARNING!
-Theunitmustnotbesplashedwithorimmersedinwater.
-Theunitmustneverbeconnectedtoavoltageorfrequencyotherthanthatforwhichitwasdesigned.Refertothe
identicationplate.Linevoltagethatistoohighcancauseanelectricalshockhazardanddamagetotheunit.
-Donotinsertngersoranyobjectsintotheairvents.
-Allelectricalinstallationsmustbecarriedoutbyaqualiedelectricianandinaccordancewithlocalregulations.
-Thedehumidiercanrestartautomaticallyafterapowercut.Alwayssetandlockthemainpowerswitchinthe
OFFpositionbeforecarryingoutanyservicework.
-Useonlyapprovedliftingequipmenttopreventpersonalinjuryanddamagetotheequipment.
-AlwayscontactMuntersforserviceorrepair.
CA CA
CA
UTION! UTION!
UTION!
Thewetairductmustalwaysbeinsulatedwhenthereisariskoffreezing.Condensationbuildsupeasilyonthe
insideoftheductbecauseofthehighmoisturecontentofthewetairleavingthedehumidier.
CA CA
CA
UTION! UTION!
UTION!
Thedehumidierhasbeendesignedtooperateatspecicprocessairowscorrespondingtothefansizes
installed.
4.2Siterequirements
Thedehumidierisonlyintendedforindoorinstallation.Avoidinstallingthedehumidierinadamp
environmentwherethereisariskofwaterenteringtheunitorinaverydustyenvironment.Ifindoubt,
contactMunters.Itisimportantthattheintendedinstallationsitemeetsthelocationandspacerequirements
fortheequipmentinordertoachievethebestpossibleperformance.
Fortheunitdimensionsandservicespacerequirements,seesection9.1,Dimensionsandservicespace.
NOTE!Ifthereisaneedforreductionofvibrationsfromthedehumidier,contactMuntersforinstructions.
190TGB-1034-L1604Installation7
DehumidierML180-MLT350
4.3Foundation
Thedehumidiermustbeinstalledonaleveloor,oronaplatformcapableofsupportingthemachine
weight.Ifthemaximumoorloadingweightisnotexceeded,specialfoundationsarenotrequired.
Whenthedehumidierhasbeeninstalled,checkthatitislevel.
Iflocalregulationsrequirethattheunitispermanentlyxedinposition,thexingholescanbeusedfor
boltingtheunittotheoor.
Figure4.1Drillingpattern
4.4Mirrorhandedductconnections
Thefrontandrearpanelsareinterchangeable,sothattheconnectionsforprocessairanddryairmaybe
situatedeitherontheleftorrightsideoftheunit.
Thedehumidiersaredeliveredwiththeprocessanddryairconnectionsontheleftsideoftheunit.If
itisrequiredtochangetheorientation,sothattheconnectionsareontherightsideoftheunit,proceed
asfollows.
W W
W
ARNING! ARNING!
ARNING!
Makesurethatthedehumidierisdisconnectedfromthemainspowerbeforechangingthepositionsofthe
processairanddryairconnections.
8Installation190TGB-1034-L1604
DehumidierML180-MLT350
Figure4.2Changingpanelpositions
1.Removethetwobolts(B)securingthefrontpanelandcarefullyremovethepanel.
2.Removethetwoboltssecuringtherearpanelandcarefullyremovethepanel.
3.Removethetwobolts(A)andwasherssecuringthecontrolandtoppanels,thencarefullyremovethe
toppanel.
4.Removethecableductcovers(C),re-routethecablesandtthecontrolpanel(D)ontotheoppositeside
oftheunit.Retthecableductcovers.
5.Fitthefront,rearandtoppanelsintheirnewpositions.
4.5Ductinstallation
4.5.1Generalrecommendations
Theconnectionsforprocessandreactivationairaredesignedinaccordancewiththerecommendationsin
ISO13351.TherectangularductconnectionscontaintappedinsertsforM8screws.
Figure4.3Ductconnections
190TGB-1034-L1604Installation9
DehumidierML180-MLT350
Partnumber170-013477–001170-013477–002170-013477–003170-013477–004
A
Ø80Ø100Ø125Ø160
B
See9.1,Dimensionsandservicespace.
L(mm)
225225220140
ML180XX
ML270XX
MLT350XX
CA CA
CA
UTION! UTION!
UTION!
Thedehumidierhasbeendesignedtooperateatspecicprocessairowscorrespondingtothefansizes
installed.
■Theprocessairanddryairductsshouldbethesamediameter.Thesameappliestothereactivationair
andwetairducts.
■Thelengthofductworkmustbekeptasshortaspossibletominimisestaticairpressurelosses.
■Tomaintainperformance,allrigidprocessorreactivationairductworkjointsmustbeairandvapour
tight.
■Theprocessairductworkmustbeinsulatedtopreventcondensationdevelopingontheoutsideofthe
duct,wheneverthetemperatureoftheairwithintheductfallsbelowthedewpointtemperatureofthe
ambientairthroughwhichtheductworkisrouted.
■Theductsmustalwaysbeinsulatedwhenthereisariskoffreezing.
■Thewetairleavingthedehumidierwill,becauseofhighmoisturecontent,condenseontheinsideduct
walls.Byinsulatingtheducts,theamountofcondensateisreduced.
■Horizontalwetairductsmustbeinstalledwithaslightdecline(awayfromthedehumidier)todrain
awaypossiblecondensation.Suitablecondensationdrainsmustbeinstalledatlowpointsinthewet
airoutletduct,seeFigure4.6.
■Ensurethataccessforoperationandservicingisnotrestrictedwhendesigningandinstallingducting.
Formoreinformation,refertosection9.1,Dimensionsandservicespace.
■Toreducenoiseand/orvibrationbeingtransmittedalongrigidducts,goodquality,airtightexible
connectionscanbetted.
■Ductsmounteddirectlyontotheunitmustbeindependentlysupportedtominimisetheloadontheunit.
■Dampersforadjustingtheairowsmustbeinstalledinthesupplyairoutletandreactivationairinlet
ducts.Correctairowsareessentialfortheoperatingefciencyoftheunit.Forairowadjustment
instructions,seesection5.2,Airowcheckandadjustment.
■Thetotalpressuredropintheprocessandreactivationductworkmustnotexceedtheavailablepressure
ofthefansttedtothedehumidier.Fordetailsofminimumavailablestaticpressure,seesection
9.3,Technicaldata.
10Installation190TGB-1034-L1604
DehumidierML180-MLT350
Figure4.4Ductsrequiredforinstallation
A.Processairinlet1.Dryairdamper
B.Dryairoutlet
2.Externallterbox(option)
C.Reactivationairinlet
3.Ducttransition
D.Wetairoutlet4.Reactivationairdamper
5.Outlet/inletduct(wirenetting)
190TGB-1034-L1604Installation11
DehumidierML180-MLT350
4.5.2Ductforoutdoorairinlet
Whenbringingambientairfromoutdoorsintothedehumidier,theinletductopeningmustbelocated
sufcientlyhighabovegroundleveltopreventdustanddebrisfromentering.
Theductingmustbedesignedtopreventrainandsnowfrombeingdrawnintothedehumidier.Theair
inletmustbelocatedawayfrompossiblecontaminantssuchasengineexhaustgases,steamandharmful
vapours.
Topreventthewet(outlet)airfromhumidifyingthereactivation(inlet)air,theairinletforreactivationmust
belocatedatleast2mfromthewetairoutlet.
Attachawirenetwithameshwidthofapproximately10mmintheouterendoftheducttopreventanimals
fromenteringthedehumidierducting.
Figure4.5Outdoorairinletdesign
A.Rectangularducting
B.Roundducting
C.Wirenetting
4.5.3Ductforwetairoutlet
Makesurethattheambientairpressureisthesameattheairinletandatthewetairoutlettopreventthe
riskofreverseairow.
Thematerialforthewetairductmustwithstandcorrosionandtemperaturesofupto100°C.Thewetair
ductingmustalwaysbeinsulatedifthereisariskofcondensation.Thewetairleavingthedehumidierwill
easilycausecondensationontheinsideoftheductwallsduetothehighmoisturecontent.
Horizontalductsmustbeinstalledslopingdownwards(awayfromthedehumidier)todrainawaypossible
condensation.Theductslopemustbeatleast2cm/m.Inaddition,drainageholes(5mm)shouldbemadeat
lowpointsintheducttopreventwateraccumulation.
Attachawirenetwithameshwidthofapproximately10mmintheouterendoftheducttopreventanimals
fromenteringthedehumidierducting.
Figure4.6Wetairoutletdesign
A.Horizontalwetairoutlet
B.Verticalwetairoutlet
C.Wirenetting
D.Downwardslope
E.Condensatedrainage
12Installation190TGB-1034-L1604
DehumidierML180-MLT350
4.6PrecautionarymeasuresforunitswithLIdesiccantrotor
ThestandarddeliveryisMuntershighperformancedesiccantrotorHPS(HighPerformanceSilicagel).
IfthedehumidierisdeliveredwithanLIrotor(lithiumchloride)itisimportantthattherotordoesnot
becomeloadedwithmoisturewhenthedehumidierisoff.
NOTE!Makesurethatnoairpassingthroughtherotorhasarelativehumiditygreaterthan80%.
Itisrecommendedtoinstallclosingdampersintheprocessandreactivationairinletstoavoidthatairwith
highrelativehumidityisdrawnthroughtherotorandintotheroom.
Thisisparticularlyimportantwhentheprocessairisdrawnfromoutdoors,orwhenthesystemhasbeen
ttedwithapre-cooler.
4.7Electricalconnections
W W
W
ARNING! ARNING!
ARNING!
Allelectricalequipmentconnectionsmustbecarriedoutinaccordancewithlocalregulationsandbyqualied
personnel.Riskofelectricalshock.
W W
W
ARNING! ARNING!
ARNING!
Theunitmustneverbeconnectedtoavoltageorfrequencyotherthanthatforwhichitwasdesigned.Refertothe
unitidenticationplate.
Eachunitissuppliedcompletewithalltheinternalwiringinstalledandconguredinaccordancewiththe
speciedvoltageandfrequencyontheidenticationplate.
ML180&MLT350dehumidiersaresuppliedcompletewithaprewiredmainscable.Thecableisttedwith
amulti-pinplugsuitableforconnectiontoasinglephaseearthedmainssocket.
NOTE!Thesupplyvoltagemustnotdifferfromthespeciedoperatingvoltagebymorethan+/-10%.
Forconnectiondetails,seetheidenticationplateandthewiringdiagramorsection9.3,Technicaldata.
4.8Externalhumiditysensor
ML-seriesdehumidiersarewiredsothatwhentheunitissettoAUTOmatic,itcanbecontrolledfrom
anexternallymountedhumiditysensor.
ML180-MLT350havebeendesignedwithaone-stepheater,andthereforecontrolislimitedtoswitchingthe
unitonandoffusingaone-stephumiditysensor.
Alowvoltageconnector(mountedonthesideoftheunit)isprovidedforelectricalconnectionofaone-step
humiditysensor.Formoreinformation,seethewiringdiagram.
NOTE!Wherenohumiditysensorisconnectedtotheunit,thedehumidierwillbeoperatingatmaximumoutput
foraslongastheunitisswitchedon.
Aroomhumiditysensoristobemounted1-1.5mabovetheoor.Itmustbepositionedsothatitisnot
directlyexposedtodryairfromtheunitortohumidairowinginthroughopeningdoors.Positionitaway
fromheatsourcesanddirectsunlight.
■Thehumiditysensorconnectingcableshouldhaveaconductorareaofnotlessthan
0,75mm
2
andmusthaveaninsulationresistanceratinginexcessof500VAC.
190TGB-1034-L1604Installation13
DehumidierML180-MLT350
■ThehumiditysensormustbedesignedsothatthecontactscloseonarisingRHtocompletethecontrol
circuitandstartthedehumidier.
■Voltagedropscanoccurwhenusingexcessivelylongcables.
Ifthevoltageacrosstheterminalsusedforconnectingthehumiditysensorislessthan20VAC,aseparate
relaycontrolledbythehumiditysensormustbeused.
14Installation190TGB-1034-L1604
DehumidierML180-MLT350
5Commissioning
Priortostartingforthersttime,someoperatingparametersmustbesetinthecontrolsystem,seechapter
6.4,Operatorpanel.
Somefeaturesrequireconnectionofexternalequipment.Forwiringdetails,seethewiringdiagram.
5.1Pre-startchecks
W W
W
ARNING! ARNING!
ARNING!
Installation,adjustments,maintenanceandrepairsmustonlybecarriedoutbyqualiedpersonnelwhoare
awareoftherisksinvolvedwhenworkingwithequipmentoperatingwithhighelectricalvoltageandhighmachine
temperatures.
Beforestartingthedehumidierforthersttime,ensurethatthemainspowersupplyisisolatedfromthe
dehumidierandcarry-outthefollowingchecks:
1.CheckthattheModeswitchonthedehumidierisinthe“OFF”position,seesection6.4,Operatorpanel.
2.Checktheairintakeltersfordamageandproperxationandalsocheckthatallareasinsidetheunitare
clean.
3.Visuallyinspectallductingandductconnectionstomakesurethatallconnectionshavebeencorrectly
installedandthattherearenosignsofdamagetothesystem.Alsocheckthatallductsarefreefrom
obstaclesblockingtheairpassage.
4.Removethetoppanelandcheckthatnoneofthemaincontactbreakersintheelectricaloperatorpanel
havebeentripped.Fordetailsrefertothewiringdiagramsprovidedwiththeunit.
5.Checkthattheincomingpowersupplyvoltageiscorrectandthatthecablesarecorrectlyconnected.
6.TheML270hasa3phasefanmotorandtherotationdirectionofthefanimpellermustbecheckedafter
connectiontothepowersupply.Openthefrontpanelofthedehumidierandtakeouttheprocesslter.
Startthedehumidierandcheckthatthefanimpellerisrotating.Switchoffthedehumidierandwatch
thefanimpellerjustbeforeitstopsrotating.Checkthatitisrotatingclockwise.
7.Ifanexternalhumiditysensorisused,checkthatthesensoriscorrectlypositionedintheroomandis
correctlyconnectedtotheunit,seesection4.8,Externalhumiditysensor.
8.Settheprocessandreactivationairowdamperstothefullyopenposition.
190TGB-1034-L1604Commissioning15
DehumidierML180-MLT350
5.2Airowcheckandadjustment
Toobtainthedesignperformance,thedryairandreactivationairowdampersmustbecorrectlyadjustedin
accordancewiththeratedairow,seesection9.3,Technicaldata.
Ifnecessary,contactMuntersforassistanceconcerninginstallationandsettings.Munterscontactaddresses
areprovidedonthebackcoverofthismanual.
CA CA
CA
UTION! UTION!
UTION!
Incorrectlysetprocessandreactivationairowscancausetheunittomalfunction.
Anydamagetotheunitresultingfromincorrectadjustmentoftheairowscaninvalidatethewarrantyoftheunit.
Theunitmustnotberunformorethanafewminutesbeforesettingupthecorrectairows.
1.Adjustthedampersinstalledinthedryairoutletandreactivationairinletductstothecorrectrated
airows.
2.Startthedehumidierandrunatfullpowerfor8minutestoallowthereactivationheatertoreachits
normaloperatingtemperature.
3.Verifythatthetemperaturedifferencebetweenthereactivationinletairandthereactivationtemperature
is95°C(tolerancelimit±5°C).Ifthetemperaturedifferenceliesoutsideofthe5%tolerancelimit,the
reactivationairdampercanbeadjustedinsmallstepsuntilthereactivationtemperatureiswithinthe
speciedtolerances.Allowthetemperaturetostabiliseaftereachadjustment.
Example:
Inletairtemperature=15°C
Reactivationairtemperature=110°C
Temperatureincrease=95°C
16Commissioning190TGB-1034-L1604
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