Danfoss Termix HD MIX Compact 28 User manual

InstallationGuide
TermixHDMIXCompact28
1.0TableofContents
1.0TableofContents.............................................1
2.0Functionaldescription......................................2
3.0Safetynotes.....................................................3
3.1SafetyNotes–general............................................3
4.0Mounting........................................................4
4.1Mounting...........................................................4
4.2Start-up..............................................................6
4.3Electricalconnections.............................................7
5.0Design.............................................................8
5.1Design...............................................................8
5.2Schematicdiagram................................................9
6.0Controls..........................................................10
6.1Heatingcircuit......................................................10
6.2Other.................................................................12
6.3Maintenance........................................................14
7.0Troubleshooting..............................................15
7.1Troubleshootingingeneral......................................15
7.2TroubleshootingHE...............................................15
7.3Disposal.............................................................16
8.0Declaration......................................................19
8.1Declarationofconformity........................................19
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InstallationGuideTermixHDMIXCompact28
2.0Functionaldescription
Districtheatingsubstationfordirectheatingwithmixingloop.
Application
TheTermixHDMIXCompact28isacompletesolutionfor
spaceheatingwithoptimalsafety,efcientenergytransfer,
service-friendlyconstructionandacompactdesign.
Districtheating(DH)
Thedistrictheatingcircuitisprefabricatedwithaowcontroller
withintegratedcontrolvalve,thermometersandballvalves.
Heating(HE)
Theheatingcircuitconsistsofthermometers,ballvalves,drain
valve,airvalveandcirculationpump.Theheatingtemperaturecan
becontrolledthermostaticallyorbyanelectroniccontrollerwith
anoutdoortemperaturesensor.
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InstallationGuideTermixHDMIXCompact28
3.0Safetynotes
3.1SafetyNotes–general
Thefollowinginstructionsrefertothestandarddesignof
substation.Specialversionsofsubstationsareavailableon
request.
Thisoperatingmanualshouldbereadcarefullybeforeinstallation
andstart-upofthesubstation.Themanufactureracceptsno
liabilityfordamageorfaultsthatresultfromnon-compliancewith
theoperatingmanual.Pleasereadandfollowalltheinstructions
carefullytopreventaccidents,injuryanddamagetoproperty.
Assembly,start-upandmaintenanceworkmustbeperformedby
qualiedandauthorizedpersonnelonly.
Pleasecomplywiththeinstructionsissuedbythesystem
manufacturerorsystemoperator.
Corrosionprotection
Allpipesandcomponentsaremadeofstainlesssteelandbrass.
Themaximumchloridecompoundsoftheowmediumshouldnot
behigherthan150mg/l.
Theriskofequipmentcorrosionincreasesconsiderablyifthe
recommendedlevelofpermissiblechloridecompoundsis
exceeded.
Energysource
Thesubstationisdesignedfordistrictheatingastheprimary
sourceofenergy.However,alsootherenergysourcescanbeused
wheretheoperatingconditionsallowitandalwaysarecomparable
todistrictheating.
Application
Thesubstationisdesignedtobeconnectedtothehouse
installationinafrost-freeroom,wherethetemperaturedoesnot
exceed50°Candthehumiditydoesnotexceed60%.Donotcover
orwallupthesubstationorinanyotherwayblocktheentrance
tothestation.
Choiceofmaterial
Choiceofmaterialsalwaysincompliancewithlocallegislation.
Safetyvalve(s)
Werecommendmountingofsafetyvalve(s),however,alwaysin
compliancewithlocalregulations.
Connection
Thesubstationmustbeequippedwithfeaturesthatensurethat
thesubstationcanbeseparatedfromallenergysources(also
powersupply).
Emergency
Incaseofdangeroraccidents-re,leaksorotherdangerous
circumstances-interruptallenergysourcestothestationif
possible,andseekexperthelp.
Incaseofdiscolouredorbad-smellingdomestichotwater,closeall
shut-offvalvesonthesubstation,informtheoperatingpersonnel
andcallforexperthelpimmediately.
Storage
Anystorageofthesubstationwhichmaybenecessarypriorto
installationshouldbeinconditionswhicharedryandheated.
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualiedandauthorizedpersonnelonly.
Pleaseobserveinstructionscarefully
Toavoidinjurytopersonsanddamagetothedevice,itisabsolutely
necessarytoreadandobservetheseinstructionscarefully.
Warningofhighpressureandtemperature
Beawareoftheinstallation’spermissiblesystempressureand
temperature.
Themaximumtemperatureoftheowmediuminthesubstationis
120°C.
Themaximumoperatingpressureofthesubstationis10bar.PN16
versionsareavailableonenquiry.
Theriskofpersonsbeinginjuredandequipmentdamagedincreases
considerablyiftherecommendedpermissibleoperatingparameters
areexceeded.
Thesubstationinstallationmustbeequippedwithsafetyvalves,
however,alwaysinaccordancewithlocalregulations.
Warningofhotsurface
Thesubstationhasgothotsurfaces,whichcancauseskinburns.
Pleasebeextremelycautiousincloseproximitytothesubstation.
Powerfailurecanresultinthemotorvalvesbeingstuckinopen
position.Thesurfacesofthesubstationcangethot,whichcancause
skinburns.Theballvalvesondistrictheatingsupplyandreturnshould
beclosed.
Warningoftransportdamage
Beforesubstationinstallation,pleasemakesurethatthesubstation
hasnotbeendamagedduringtransport.
IMPORTANT-Tighteningofconnections
Duetovibrationsduringtransportallangeconnections,screwjoints
andelectricalclampandscrewconnectionsmustbecheckedand
tightenedbeforewaterisaddedtothesystem.Afterwaterhasbeen
addedtothesystemandthesystemhasbeenputintooperation,
re-tightenALLconnections.
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InstallationGuideTermixHDMIXCompact28
4.0Mounting
4.1Mounting
Installationmustbeincompliancewithlocalstandardsand
regulations.
Districtheating(DH)-Inthefollowingsections,DHreferstothe
heatsourcewhichsuppliesthesubstations.Avarietyofenergy
sources,suchasoil,gasorsolarpower,couldbeusedasthe
primarysupplytoDanfosssubstations.Forthesakeofsimplicity,
DHcanbetakentomeantheprimarysupply.
Connections:
1.Districtheating(DH)supply
2.Districtheating(DH)return
3.Heating(HE)supply
4.Heating(HE)return
Connectionsizes:
DH+HE:G1”(int.thread)
Dimensions(mm):
Withoutcover:H970xW620xD420
Withcover:H970xW640xD522
Weight(approx.):50kg
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualiedandauthorizedpersonnelonly.
Thepipeplacementcandeviatefromtheshowndrawing.Pleasenote
themarkingsonthestation.
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InstallationGuideTermixHDMIXCompact28
4.1.1Installation
Mounting:
Adequatespace
Pleaseallowadequatespacearoundthesubstationformounting
andmaintenancepurposes.
Orientation
Thestationmustbemountedsothatcomponents,keyholes
andlabelsareplacedcorrectly.Ifyouwishtomountthestation
differentlypleasecontactyoursupplier.
Drillings
Wheresubstationsaretobewall-mounted,drillingsareprovided
inthebackmountingplate.Floormountedunitshavesupport.
Labelling
Eachconnectiononthesubstationislabelled.
Beforeinstallation:
Cleanandrinse
Priortoinstallation,allsubstationpipesandconnectionsshouldbe
cleanedandrinsed.
Thightening
Duetovibrationduringtransport,allsubstationconnectionsmust
becheckedandtightenedbeforeinstallation.
Unusedconnections
Unusedconnectionsandshut-offvalvesmustbesealedwitha
plug.Shouldtheplugsrequireremoval,thismustonlybedoneby
anauthorizedservicetechnician.
Installation:
Strainer
Ifastrainerissuppliedwiththestationitmustbettedaccording
toschematicdiagram.Pleasenotethatthestrainermaybe
suppliedloose.
Connections
Internalinstallationanddistrictheatingpipesconnectionsmustbe
madeusingthreaded,angedorweldedconnections.
Keyholeformounting.
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InstallationGuideTermixHDMIXCompact28
4.2Start-up
Start-up,Heatingwithmixingloop
Start-up:
1:Pumpspeed
Setthepumptohighestspeedbeforestart-up.
2:Startpump
Startthepumpandheatthroughthesystem.
3:Openshut-offvalves
Theshut-offvalvesshouldthenbeopenedandtheunitobserved
asitentersservice.Visualcheckingshouldconrmtemperatures,
pressures,acceptablethermalexpansionandabsenceofleakage.
Ifthesystemoperatesinaccordancewithdesign,itcanbeput
toregularuse.
4:Ventsystem
Switchoffthepumpandventtheinstallationaftertheradiators
havebeenwarmedup.
5:Adjustpumpspeed
Setthepumptothelowestspeedconsistentwithcomfortand
electricityconsumption.
Normallythechange-overswitchissetinthemidposition(default).
Howeverforsystemswithunderoorheatingorsinglepipeloop
systems,itmaybenecessarytoturnthechange-overswitch
upwards.
Higherpumpspeedsareonlyusediftheheatingrequirement
increases.
Re-thightenconnections
Afterwaterhasbeenaddedtothesystemandthesystemhasbeen
putintooperation,re-tightenALLconnections.
Pump
Thepumpmustbeswitchedoffduringsystemll.
Underoorheating:
Pumpstopfunction
Ifthesubstationisusedinconnectionwithunderoorheating,the
circulationpumpmustbeconnectedtothepumpstopfunctionin
theunderoorheatingcontroller.Thepumpmustbestoppedif
allunderoorheatingcircuitsareclosed.
Warranty
Ifthisisnotpossible,thenowmustbecontinuedthroughthe
by-pass.Failingthis,thepumpwillbeatriskofseizureandany
remainingwarrantywillbewithdrawn.
Summeroperation:
Switchoffpump
Insummerthecirculationpumpmustbeswitchedoffandthe
shut-offvalvetoHEsupplyclosed.
Runningpumpbi-weekly
Itisrecommendedtostartupthecirculationpump(for2minutes)
onceamonthduringsummer;theshut-offvalveoftheHEsupply
mustbeshut.
Electroniccontroller
Mostelectroniccontrollerswillstartupthepumpautomatically
(pleasenotemanufacturer´sinstructions).
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InstallationGuideTermixHDMIXCompact28
4.3Electricalconnections
Beforemakingelectricalconnections,pleasenotethe
following:
Safetynotes
Pleasereadtherelevantpartsofthesafetynotes.
230V
Thesubstationmustbeconnectedto230VACandearth.
Disconnection
Thesubstationmustbeelectricallyconnectedsothatitcanbe
disconnectedforrepairs.
Outdoortemperaturesensor
Outdoorsensorsshouldbemountedsoastoavoidexposureto
directsunlight.Theyshouldnotbeplacedclosetodoors,windows
orventilationoutlets.
Theoutdoorsensormustbeconnectedtothestationonthe
terminalblockundertheelectroniccontrol.
Authorizedelectrician
Electricalconnectionsmustbemadebyanauthorizedelectricianonly.
Localstandards
Electricalconnectionsmustbemadeinaccordancewithcurrent
regulationsandlocalstandards.
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InstallationGuideTermixHDMIXCompact28
5.0Design
5.1Design
Yoursubstationmightlookdifferentthanthesubstationshown.
Designdescription
FElectroniccontroller14Sensorpocket,energymeter292-waymotorizedvalve
2Singlecheckvalve20Filling/drainvalve31Differentialpressurecontroller
9Strainer25Pressuregaugewithballvalve41Fittingpiece,energymeter
10Circulatorpump27Actuator,HE48Airvent,manual
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InstallationGuideTermixHDMIXCompact28
5.2Schematicdiagram
DH
Supply
HE
Supply
DH
Return
HE
Return
Yoursubstationmightlookdifferentthantheschematicdiagramshown.
Schematicdescription
FElectroniccontroller16Outdoorsensor27Actuator
1Ballvalve18Thermometer292-waymotorizedvalve
2Singlecheckvalve19Surfacesensor31Differentialpressurecontroller
9Strainer20Filling/drainvalve41Fittingpiece,energymeter
10Circulationpump24Deliveredloosewithunit48Airvent,manual
14Sensorpocket,energymeter25Pressuregaugewithballvalve
DHSupply:DistrictHeatingSupply
DHReturn:DistrictHeatingReturn
HESupply:HeatingSupply
HEReturn:HeatingReturn
5.2.1Technicalparameters
Technicalparameters
Nominalpressure:PN16
Max.DHsupplytemperature:120°C
Soundlevel:≤55dB
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6.0Controls
6.1Heatingcircuit
6.1.1Differentialpressurecontroller
Thedifferentialpressurecontrollersmoothsouttheuctuationsin
pressurearrivingfromthedistrictheatingnetwork.Theoperating
pressureinthesubstationisthusheldsteady.
6.1.2AVTBcontroller(30–100°)
Thetemperaturesettingisasfollows:
1=35°C
2=55°C
3=75°C
4=95°C
5=100°C
Thevaluesareintendedasaguide.
Thermostaticcontrol
ThetemperatureoftheHEowlineisadjustedasfollows:
Toincreasetemperature,turnthehandleonthethermostatic
controllertoselectahighernumber.
Todecreasetemperature,turnthehandleonthethermostatic
controllertoselectalowernumber.
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6.1.3Flowcontrollerwithintegratedcontrolvalve
Thecontrollerisaself-actingowcontrollerwithintegratedcontrol
valve.Thecontrollercloseswhensetmax.owisexceededand
canbeusedincombinationwithDanfosselectricalactuatorswith
orwithoutsafetyfunction.Springreturnmotorcanbeusedas
safetyfunctionbypowerfailure.
6.1.4Electric2–waymotorizedvalve
Actuatorswithorwithoutsafetyfunctionareavailablefor3-point
controls.Spring-returnactuatorscanbeusedtoprovidesafety
shut-offintheeventofpowerfailure.
6.1.5Electroniccontrol
Substationswithelectroniccontrolmustbesetinaccordancewith
manufacturer´sinstructions.
Wheretheroomtemperatureiscontrolledbyradiatorthermostats,
itisrecommendedthatthermostatsbesetforminimum
temperatureineachroom.
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6.1.6Outdoortemperaturesensor(ESMT)
Outdoorsensorsshouldbemountedsoastoavoidexposureto
directsunlight.Theyshouldnotbeplacedclosetodoors,windows
orventilationoutlets.
6.1.7Circulationpump
TheGrundfosMAGNArangeisdesignedforheating,district
heatinganddomestichotwatersupplyinbuildingsonanyscale.
TheMAGNAsarespeed-controlledpumpswithbuilt-inintelligence
thatletsthemanalyzecurrentconditionsandadjusttheir
performanceaccordingly.
EnergylabellingclassA
6.2Other
6.2.1Strainer
Strainersshouldbecleanedregularlybyauthorizedpersonnel.The
frequencyofcleaningwoulddependonoperatingconditionsand
themanufacturer’sinstructions.
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6.2.2Fittingpiece
Thesubstationisequippedwithattingpieceforenergymeter.
Assemblyofenergymeters:
1:Closeballvalves
ClosetheballvalvesonDHSupplyandDHReturn,ifthereiswater
onthesystem.
2:Loosennuts
Loosenthenutsonthettingpiece.
3:Removettingpiece
Removethettingpieceandreplaceitwiththeenergymeter.Do
notforgetthegaskets.
4:Tightenconnections
Aftermountingoftheenergymeterremembertocheckand
tightenallthreadedconnections.
Sensorpocket,energymeter
Thesensorsoftheenergymeterismountedinthesensorpockets.
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InstallationGuideTermixHDMIXCompact28
6.3Maintenance
Thesubstationrequireslittlemonitoring,apartfromroutine
checks.Itisrecommendedtoreadtheenergymeteratregular
intervals,andtowritedownthemeterreadings.
RegularinspectionsofthesubstationaccordingtothisInstruction
arerecommended,whichshouldinclude:
Strainers
Cleaningofstrainers.
Meters
Checkingofalloperatingparameterssuchasmeterreadings.
Temperatures
Checkingofalltemperatures,suchasDHsupplytemperatureand
DHWtemperature.
Connections
Checkingallconnectionsforleakages.
Safetyvalves
Theoperationofthesafetyvalvesshouldbecheckedbyturning
thevalveheadintheindicateddirection.
Venting
Checkingthatthesystemisthoroughlyvented.
Inspectionsshouldbecarriedoutminimumeverytwoyears.
SparepartscanbeorderedfromDanfoss.Pleaseensurethatany
enquiryincludesthesubstationserialnumber.
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualiedandauthorizedpersonnelonly.
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7.0Troubleshooting
7.1Troubleshootingingeneral
Intheeventofoperatingdisturbances,thefollowingbasicfeatures
shouldbecheckedbeforecarryingoutactualtroubleshooting:
•thesubstationisconnectedtoelectricity,
•thestrainerontheDHsupplypipeisclean,
•thesupplytemperatureoftheDHisatthenormallevel
(summer,atleast60°C-winter,atleast70°C),
•thedifferentialpressureisequaltoorhigherthanthenormal
(local)differentialpressureintheDHnetwork–ifindoubt,ask
theDHplantsupervisor,
•pressureonthesystem-checktheHEpressuregauge.
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualiedandauthorizedpersonnelonly.
7.2TroubleshootingHE
ProblemPossiblecauseSolution
Toolittleornoheat.StrainercloggedinDHorHEcircuit
(radiatorcircuit).
Cleangate/strainer(s).
ThelterintheenergymeteronDHcircuit
clogged.
Cleanthelter(afterconsultingtheDH
plantoperator).
Defectiveorwronglyadjusteddifferential
pressurecontroller.
Checktheoperationofthedifferential
pressurecontroller–cleanthevalveseatif
required.
Sensordefective–orpossiblydirtinthe
valvehousing.
Checktheoperationofthethermostat–
cleanthevalveseatifrequired.
Automaticcontrols,ifany,wronglysetor
defective-possiblypowerfailure.
Checkifthesettingofthecontroller
iscorrect–seeseparateinstructions.
Checkthepowersupply.Temporary
settingofmotorto“manual”control–see
instructionsonautomaticcontrols.
Pumpoutofoperation.Checkifthepumpisreceivingpowerand
thatitturns.Checkifthereisairtrappedin
thepumphousing–seepumpmanual.
Thepumpissetattoolowspeedof
rotation.
Setthepumpathigherspeedofrotation.
Pressuredrop–thepressuredropon
theradiatorcircuitshowslowerthan
recommendedoperatingpressure.
Fillwateronthesystemandcheckthe
functioningofthepressureexpansion
vesselifrequired.
Airpocketsinthesystem.Venttheinstallationthoroughly.
Limitingofthereturntemperature
adjustedtoolow.
Adjustaccordingtoinstructions.
Defectiveradiatorvalves.Check–replace.
Unevenheatdistributioninbuilding
becauseofincorrectlysetbalancingvalves,
orbecausetherearenobalancingvalves.
Adjust/installbalancingvalves.
Diameterofpipetosubstationtoosmallor
branchpipetoolong.
Checkpipedimensions.
Unevenheatdistribution.Airpocketsinthesystem.Venttheinstallationthoroughly.
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InstallationGuideTermixHDMIXCompact28
DHsupplytemperaturetoohigh.Wrongsettingofthermostatorof
automaticcontrols,ifany.
Adjustautomaticcontrols,–see
instructionsforautomaticcontrols.
Defectivecontroller.Thecontrollerdoes
notreactasitshouldaccordingtothe
instructions.
Callautomaticcontrolsmanufactureror
replacetheregulator.
Defectivesensoronself-actingthermostat.Replacethermostat–orsensoronly.
DHsupplytemperaturetoolow.Wrongsettingofautomaticcontrols,ifany.Adjustautomaticcontrols–seeinstructions
forautomaticcontrols.
Defectivecontroller.Thecontrollerdoes
notreactasitshouldaccordingtothe
instructions.
Callinautomaticcontrolsmanufactureror
replacecontroller.
Defectivesensoronself-actingthermostat.Replacethermostat–orsensoronly.
Wrongplacement/ttingofoutdoor
temperaturesensor.
Adjustlocationofoutdoortemperature
sensor.
Strainerclogged.Cleangate/strainer.
ToohighDHreturntemperature.Toosmallheatingsurface/toosmall
radiatorscomparedtothetotalheating
requirementofthebuilding.
Increasetotalheatingsurface.
Poorutilizationofexistingheatingsurface.
Defectivesensoronself-actingthermostat.
Makesuretheheatisdistributedevenly
acrossthefullheatingsurface–openall
radiatorsandkeeptheradiatorsinthe
systemfromheatingupatthebottom.It
isextremelyimportanttokeepthesupply
temperaturetotheradiatorsaslowas
possible,whilemaintainingareasonable
levelofcomfort.
Thesystemissinglepipeloop.Thesystemshouldfeatureelectronic
controlsaswellasreturnsensors.
Pumppressuretoohigh.Adjustpumptoalowerlevel.
Airinsystem.Ventthesystem.
Defectiveorincorrectlysetradiator
valve(s).Singlepipeloopsystemsrequire
specialone-piperadiatorvalves.
Check–set/replace.
Dirtinthemotorizedvalveorinthe
differentialpressurecontroller.
Check–cleanout.
Defectivemotorizedvalve,sensoror
automaticcontroller.
Check–replace.
Electroniccontrollernotadjustedcorrectly.Adjustaccordingtoinstructions.
Noiseinsystem.Pumppressuretoohigh.Adjustpumptoalowerlevel.
Heatloadtoohigh.Defectivemotorizedvalve,sensoror
electroniccontroller.
Check–replace.
7.3Disposal
Disposal
Thisproductshouldbedismantledanditscomponents
sorted,ifpossible,invariousgroupsbeforerecycling
ordisposal.
Alwaysfollowthelocaldisposalregulations.
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8.0Declaration
8.1Declarationofconformity
8.1.1Category0withelectricalequipment
EC–DeclarationofConformity
GeminaTermixA/S
MemberoftheDanfossGroup
Navervej15-17
DK-7451Sunds
Declaresonoursoleresponsibilitythatthebelowproducts:
Substations–Category0withelectricalequipment,
coveredbythisdeclarationareinconformitywiththefollowingdirectives,standardsandothernormative
documents,providedthattheyareusedaccordingtoourinstructions.
MachineryDirective2006/42/EC
DS/EN60204-1/A1:2009.Safetyofmachinery–
Part1–GeneralRequirements.
DS/EN12100:2011.Safetyofmachinery–Risk
assessment.
LVD–LowVoltageDirective–2006/95/EC
DS/EN60204-1/A1:2009.Safetyofmachinery–
Part1–GeneralRequirements.
EMC–Directive–2004/108/EC
DS/EN61000-6-2/Corr.:2005.Electromagnetic
compatibility–Genericstandard:Immunity
industry.
DS/EN61000-6-3:2007.Electromagnetic
compatibility–Genericstandard:Emissionfor
residential,commercial&lightindustry.
Sunds–2013.03.15
PlaceanddateofissueClausGjøderumMortensen
Quality&EnvironmentManager
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InstallationGuideTermixHDMIXCompact28
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