System air DVCompact Series Troubleshooting guide

DVCompact
WithReversibleHeatPumpSection
OperationandMaintenanceInstructions
©2016CopyrightUABSystemair
UABSystemaircanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprinted
material.UABSystemairreservestherighttoalteritsproductswithoutnotice.Thisalsoappliesto
productsalreadyonorderprovidedthatsuchalterationscanbemadewithoutsubsequentialchanges
beingnecessaryinspecicationsalreadyagreed.
Allrightsreserved.
Documentinoriginallanguage211118-EN_GB
2016-08-31A001

Contents
1Warnings...................................................................................................................................1
2Refrigerantcontrol/reporting.......................................................................................................1
3Service......................................................................................................................................2
4Productdescription....................................................................................................................2
4.1Descriptionofcomponents................................................................................................3
4.1.1Supplyandextractairfans......................................................................................4
4.1.2Supplyandextractairlters.....................................................................................4
4.1.2.1Pressureguardlters.....................................................................................4
4.1.3Differentialpressuretransmitters..............................................................................4
4.1.4Rotaryheatexchanger............................................................................................4
4.1.4.1Rotormotor...................................................................................................4
4.1.4.2Rotationguard...............................................................................................5
4.1.5Compressors..........................................................................................................5
4.1.6Condenser/evaporatorcoil.......................................................................................5
5Unitcontrol................................................................................................................................6
5.1Heatpumpcontrol............................................................................................................6
5.1.1Mainscreen............................................................................................................7
5.1.2Basicinformationaboutdevices...............................................................................7
5.1.3Informationmenu....................................................................................................9
5.1.4Servicemenu.........................................................................................................11
5.1.4.1Manualmode................................................................................................11
5.1.4.2Othersettings................................................................................................12
5.1.5Alarms—Heatpumpsystem..................................................................................12
5.1.5.1Alarmdatalog...............................................................................................13
5.1.5.2Resetalarms.................................................................................................13
5.1.5.3Alarmlist.......................................................................................................13
5.2Controloftheairhandlingunit...........................................................................................15
5.2.1Controlpanel..........................................................................................................15
5.2.1.1OperatingtheControlpanel...........................................................................15
5.2.2Commissioning.......................................................................................................16
5.2.2.1BeforeStartingtheSystem.............................................................................16
5.2.2.2Initialsetupoftheunit....................................................................................16
5.2.2.3MenuoverviewOPERATOR/SERVICELEVEL................................................17
5.2.2.4Freecoolingdescription.................................................................................29
5.2.3Alarms...................................................................................................................29
6Maintenance..............................................................................................................................30
6.1Important.........................................................................................................................30
6.2MaintenanceIntervals.......................................................................................................30
6.3Cleaningtheunit..............................................................................................................31
6.4ChangingSupply/Extractairlter.......................................................................................32
6.5Checkingtherotatingheatexchanger................................................................................32
6.6Checkingthefans.............................................................................................................33
6.6.1Cleaning.................................................................................................................33
6.6.2Inspection...............................................................................................................33
6.7Checkingthecompressor.................................................................................................34
6.7.1Inspection...............................................................................................................34
6.8Checkingtheevaporatorandcondenser............................................................................34
6.8.1Cleaning.................................................................................................................34
6.8.2Inspection...............................................................................................................34
7Troubleshooting.........................................................................................................................35
8Additionalinformationonpersonnelsafetyandprotectivemeasures.............................................35
8.1Informationonairbornenoiseemissions............................................................................35
8.2Personnelsafetymeasures...............................................................................................35
9Disposalandrecycling...............................................................................................................36
9.1Disposaloftheheatpumpunit..........................................................................................36
9.2Disposaloftheairhandlingunit.........................................................................................36

1Warnings
Theheatpumpunitcancausepersonalinjuryifinstalledorusedincorrectly.Readthedocumentationfor
theproductcarefullybeforeitisinstalledorcommissioned.
Danger
•MakesurethattheMainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!
•Allelectricalconnectionsmustbecarriedoutbyanauthorizedinstallerandinaccordancewith
localrulesandregulations.
•Whencarryingoutwork/serviceonthecoolingcircuit(s),thepowermustbedisconnected,andthe
workonlyperformedbyauthorisedpersonnel.
Warning
•Bewareofsharpedgesduringmountingandmaintenance.Useprotectiveclothing.
•Skincontactwiththerefrigerantmustbeavoided.Useprotectiveequipmentsuchasprotective
goggles,glovesandsuitableclothing.Goodventilationmustbearranged.
•Ifrefrigerantmakescontactwithskin,carefullywashtheexposedpartofthebody.
•Incaseoffrostbite,treatanydamagedskinareaandseekmedicaltreatment.
•Ifrefrigerantmakescontactwiththeeyes,immediatelyuseeyewashorlukewarmwaterandvisita
doctor.
•Astherefrigerantisheavierthanair,therefrigerantmaydisplacetheairandcauseasphyxiationin
unfavorableconditions.
Important
•Forsafetyreasons,onlypersonnelwithrelevanttechnicalcompetencemayperforminstallationwork.
Theinstallationinstructionssuppliedmustbefollowed.
•TherefrigerantforthiscoolingunitisR410Aandcannotbereplacedwithanyothertypeofrefrigerant
withoutwrittenapprovalfromthesupplier.
•Serviceswitchesarelockedtopreventunauthorizedstart-upduringmaintenancework.Where
condensationwaterneedstobedrainedaway,correctconnectiontothedrainmustensurethis.The
installermustequiptheunitwithoperatingandmaintenanceinstructions.
•ThesesafetyregulationsonlyapplytoproductssuppliedbySystemairUAB.Itistheinstaller’s
responsibilitytocarryoutacomprehensivesafetyassessmentoftheunit,aswellaspreparing
safetyregulationssothatuserisabletosecuretheunitsuchthatitdoesnotcauseharmtopeople,
animals,materialorenvironment.Ifthereisanydoubtabouthowtointerprettheregulationscovering
safety,installation,operationandmaintenance,itisoftheutmostimportancethatadviceissought
fromSystemairUABoritsdistributors.
CarefortheEnvironment!
•Therefrigerantundernocircumstancesmustbereleasedintotheenvironment.
2Refrigerantcontrol/reporting
DVCompactDXRcomespre-lledwithR410A(50%R-32/50%R-125)refrigerant.
DVCompactDXRunitsbelongtothegroups“pieceunitscontainingmorethan3kgrefrigerantspercircuit“
and“equipmentthatcontainsuorinatedgreenhousegasesinquantitiesof5tonesofCO2equivalent
ormore”anditmustbecheckedforleaks.Leakagecontrolwithrecordkeepingshallbedoneonce
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peryear.Refrigerantcontrolreportmustbealwaysestablishedbyacoolingcertiedpersonbefore
commissioningoftheunit.Anyquantitiesaddedorrecoveredduringmaintenance,servicingandnal
disposalwillneedtoberecordedalongwith:
•leakchecks
•actionstaken
•thenameoftheserviceCompany,theengineer/technicianwhoperformedtheservicingand
maintenance
•dates
•resultsofinspections
Theserecordshavetobemadeavailabletothecompetentauthorityuponrequest.Differentregulations
canbevalidindifferentcountries.Checkwithyourlocalgovernment.
3Service
Beforecallingyourservicerepresentative,makeanoteofthespecicationandproductnumberfrom
thetypelabel(gure1).
Fig.1Typelabel
PositionDescription
1Productordernumber
2Productcode(productspecication)
3Productitemnumber/productionnumber/consecutivenumber/date
(YYYYMMDD)
4Productdescription
DVCompactDXRairhandlingunitcontainsacompletestand-alonereversibleheatpumpsystem(heating
andcooling)witharotatingheatexchangerandtwofansections.Thesystemistestedandoptimized
beforedelivery.
TheheatpumpsystemisdeliveredwiththeR–410arefrigerantinthecircuit.InternalcontrollerpCOOEM
controlsallsafetyfunctionsandcapacityofdigitalscrollcompressors(DVCompactDXR–10,DVCompact
DXR–15comesonlywithonecompressor).Signalstostartheatingorcooling,aswellacapacitysignal,
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aresenttopCOOEMcontrollerdirectlyfromthemainairhandlingunitcontrollerCorrigowhenthereisa
demandforheatingorcooling.
Capacityisregulatedaccuratelybytherstdigitalscrollcompressor.Whenthereisanincreasingcapacity
demand(morethan50%),therstcompressorspeedsuptothemaximumbeforethesecondcompressor
getsastartsignaltooperateatthemaximumcapacity.Thenthespeedoftherstcompressorwillbe
reducedtoaminimumtocontinueaccuratelyregulatecapacityabove50%.
Signalsfromthehighandlowpressuretransmittershelptoensuremaximumperformancewithout
exceedingsetvaluesandtherebypreventsafetyswitchesfromdisconnectingcoolingandheating.
Thissafetysystemensuresmaximumperformanceunderthegivenowsandtemperaturesofsupply
andexhaustair.
Heatpumpsystemhavetwoelectronicexpansionvalves.Oneexpansionvalveforheatingandanother
oneforcooling.Superheatiscontrolledbyabuilt-incontroller.Abuilt-incontrollerreceivessignalsfroma
Lowpressuretransmitterandtemperaturesensorplacedinthecommonsuctionline.Thisensuresavery
accurateandefcientperformanceofthesystemunderalloperatingconditions.
A4–wayvalvechangesfunctionofthesystembetweenheatingandcoolingmode.
4.1Descriptionofcomponents
Fig.2Leftmodel,size20
Note:
ThelocationofcomponentsinRightmodelismirrored.Startingsize50,theelectricconnectionboxofthe
heatpumpisinstalledinsidetheunitandnotmountedonthedoors.
PositionDescription
1Extractairfan
2Supplyairfan
3Extractairlters
4Supplyairlters
5Frequencyconverter,supplyairfan
6Frequencyconverter,extractairfan
7Differentialpressuretransmitter(CAV),extractair
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PositionDescription
8Differentialpressuretransmitter(CAV),supplyair
9Electricconnectionboxoftheairhandlingunit,Corrigocontroller
10Electricconnectionboxoftheheatpump,Carelcontroller
11Compressors
12Evaporator/Condensercoilintheextractaircompartment
13Evaporator/Condensercoilinthesupplyaircompartment
14Rotaryheatexchanger
15Rotormotor
16Rotorbelt
17Rotorguard
18Drainpipe
4.1.1Supplyandextractairfans
Fansandmotorsinunitsaremountedonvibrationdampers.Dustanddirtcanbuildupontheimpellers,
whichcancreateimbalanceandvibration.Theimpellersshouldbecheckedannuallyandcleanedwhen
necessary.Atthesametimevibrationdampersshouldbechecked.Damagedvibrationdampersmust
bereplaced.
Thedrivemotorshavepermanentlylubricatedbearingsthatshouldnotbegreased.
4.1.2Supplyandextractairlters
TheltersareofbagltertypewithlterqualityM5,M6orF7forthesupply-andextractairlter.Thelters
needtobereplacedwhenpolluted.Newsetsoflterscanbeacquiredfromyourinstallerorwholesaler.
4.1.2.1Pressureguardlters
Apressureguardmeasuresthedifferentialpressureoverthesupplyandextractairlters.Whenthe
pressuredropreachesthesetvalueanalarmistriggeredinthemaincontroller.Thedifferentialpressure
canbesetbetween40and300Pa.Thepressureswitchispresetfromfactoryto200Pa.
4.1.3Differentialpressuretransmitters
2builtinpressuretransmittersmaintaintheairowataconstantlevelbymeasuringthedifferential
pressureovertheinletconeofthefanimpellers.Thepressuretransmittersareinstalledfromfactoryin
allunitswithenclosedcontrolandCAVcontrol.InVAVunitspressuresensorswillbedeliveredloosely
withtheunittobemountedinthesupplyandextractairducts,see“Installationinstructions”formore
informationconcerningVAVinstallations.Thebuiltinpressuretransmitterswillthenworkasmonitorsof
theactualairow.
4.1.4Rotaryheatexchanger
DVCompactDXRunitisequippedwithahigh-efciency,rotaryheatexchangerwhichisusedtotransfer
theheatbetweenextractandsupplyairstreams.Operationoftherotaryheatexchangerisautomaticand
dependsonthesettemperature.Theheatexchangerisremovableforcleaningandmaintenance.
4.1.4.1Rotormotor
Themotoriscontrolledbya0–10Vanalogcontrolsignal.
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4.1.4.2Rotationguard
Asensorbuiltintherotormotorregisterstherotationoftheheatexchangerrotor.It’sconnectedtothe
mainregulator,whichgivesanalarmiftherotorstopswhilethereisaheatdemand.
4.1.5Compressors
ThecompressorinDVCompactDXRunitisahigh-efciency,variablespeedscrollcompressor.Itis
designedespeciallyforspeedcontrolandcannotrunwithoutfrequencyconverter.Speedandbythat
capacityisregulatedbychangingtheoperatingfrequency.Controlofthecompressoriscompletely
automaticaccordingtotheneedofthepremisesandthesignalthatcomesviathecontrollerpCOOEMto
thefrequencyconverter.
Theheatpumpsystemcomespre-lledwithR410Arefrigerantandtestedatthefactory.
4.1.6Condenser/evaporatorcoil
Theevaporator/condensercoilismadeofcoppertubeswithaluminiumnsandisusedtotransferthermal
energybetweenoutdoorandindoorairstreams.Condenser/evaporatorcoilchangesitsfunctionbasedon
theactivemode:
•Heatingmode—coilintheextractaircompartmentisanevaporator,coilinthesupplyaircompartment
isacondenser.
•Coolingmode—coilintheextractaircompartmentisacondenser,coilinthesupplyaircompartment
isanevaporator.
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5Unitcontrol
5.1Heatpumpcontrol
HeatpumpiscontrolledviapGD1controlpanel.ThecontrolpanelpGD1has6buttonswiththefollowing
functions:
Fig.3ControlpanelpGD1
PositionSymbolDescription
1•Alarmsymbol
Displaythelistofactivealarms
2•Prg—programmingkey
Accessthemainmenu
3•Esc
Returntothepreviousscreen
4
•Enterarrow
Switchfromparameterdisplaytoedit
Conrmvalueandreturntotheparameterlist
5
•Uparrow
Navigatebetweenthedisplayscreensorincreasethevalueshownon
thedisplay
6
•Downarrow
Navigatebetweenthedisplayscreensordecreasethevalueshownon
thedisplay
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5.1.1Mainscreen
Thefollowingillustrationisanexampleofthemainscreenwithanactiveunit:
31/03/2016Thu11:56
Comps:35%
CntDwn:11s
ExV:0°0K0%
Req:50%→17%
Regulating
Fig.4Mainscreen
1.Dateandtime.
2.Currentstatusoftheunit:
UnitOFF
Summer
mode
(cooling)
Wintermode
(heating)
Defrostingin
progress
3.Statusofinternaldevices:
•Compressorsinoperationandtheircapacity.
•Countdown,minimumtimebetweenon/off.
•SuperheattemperatureinKandexpansionvalveopeningin%.
4.Systemcapacityrequestandactualpoweroutput:
•SystemOFF
•ONbyinput(butnocapacitysignal)
•Regulating
•Pump-Down(timerisactive)
•Manualmode
•OFFalarm
5.Indicatesaccesstotheinformationmenu.Use,arrowkeysforselectionandarrowkey
toconrm.
5.1.2Basicinformationaboutdevices
Informationaboutthestatusoftheunitisaccessibledirectlyfromthemainmenu,withoutneedtoaccess
submenus.Use,arrowkeystogothroughloopofscreenswhichcontaindetailedinformation
aboutdevices.
Theindividualscreensareshownbelow:
BSynoptic—Circ.1
DZ2:Prev—10%
70.0°
5.6barg→10.0°
50%
EZ8:LoDscgP60s
70.2°
5.6barg→10.0°
Fig.5Compressorstatus
1.Dischargetemperaturezoneandpreventiveaction.
2.Dischargetemperature.
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3.Condensingpressureandtemperature.
4.Statusofcompressorsandcapacity.
5.Envelopezoneandtime:
•EZ1:Ok-zonewithinoperatinglimits.
•EZ2:HiDP-Highcompressionratio.
•EZ3:HiDPscgP-Highcondensationtemperature.
•EZ4:HiCurr-Highmotorcurrent.
•EZ5:HiSuctP-Highsuctionpressure.
•EZ6:LoDP-Lowdifferentialpressure.
•EZ7:LoPRat-Lowcompressionratio.
•EZ8:LoDscgP-Lowcondensationpressure.
•EZ9:LoSuctP-Lowevaporationpressure.
6.Suctiongastemperature.
7.Evaporatingpressureandtemperature.
BSynoptic—ExV1A
SH:5.0K
5.0°C
300stp
70%-Heat.
EEV:10.0barg
Close0.0°C
Fig.6Expansionvalveoverview
1.Superheatandactualsetpoint.
2.Suctiongastemperature.
3.Valveopeningmode,percentageandsteps.
4.Statusoftheexpansionvalve:
•Close-valveclosed.
•Std-by-valveinstandbyposition.
•Pos-valveinpositioning.
•Wait-afterpositioningandincaseofchangeofcoolingcapacitygreaterthan10%,theexpansion
valvehavetodoalargemovementthatcantakesomeseconds.Waitingtimewillbedisplayed
duringthisphase.
•On-valveinregulation.
•Init-driverinitialization.
5.Evaporatingpressureandtemperature.
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Info
PressENTERtocheck
advanceddevicesinfo
→I/Ostatus
→Workinghours
→Devicesinmanual
→Systeminfo
Fig.7Screentoadvancedinformationmenus
Inthisscreen,pressarrowkeytoaccessadvancedinformationsubmenus.Moredetailsinsection
5.1.3Informationmenu.
Digitalandanalogueinputs/outputs,alsoinformationaboutrmwareandhardwarearedisplayedin
thesescreens.
5.1.3Informationmenu
Use,arrowkeystogothroughloopofscreenswhichcontainadvancedinformationaboutdevices.
Info—OutputShowsthestatusoftherstcompressor.
ShowsthestatusofNO2digitalvalve.
Showstheloadofthecompressorin%.
Showsremainingtimeuntilmaintenanceofthe
compressor.
Comp.1–Digitalscroll
NO11On
NO2DigitalvalveOff
Power:100.0%
Hours:0000/030000h
Info—OutputShowsthestatusofthesecondcompressor.
Showsremainingtimeuntilmaintenanceofthe
compressor.
Compressor2
NO12Off
Hours:0000/030000h
Info—OutputShowsdigitaloutputsfromdevicesandalarms.
NO3–Oilvalve:Off
NO4–4watvalve:Heat
NO5–Lowpressureal.:On
NO6–ExValarm:Off
NO7–Generalalarm:Off
NO9–Defrost:Off
NO10–Dischargeal.:Off
Info—OutputShowsoutofenvelopepositionin%.
Showscompressorspeedin%.
Showsexpansionvalveopeningin%.
Y1–Envelop:0.0%
Y2–Comp.fbk:100%
Y3–ExVperc.0%
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Info—InputShowssuctionpressure,evaporatingtemperatureand
suctiontemperature.
Suctionpressure
U6:0.0barg
Evap.temp.:0.0°C
Suctiontemperature
U2:0.0°C
Info—InputShowsinformationaboutdefrostinganditsstatus.
Defrost
Evap.temp:0.0°C
Filtered:0.0°C
CntDwn:29900
Defroststatus:
Checkstart5s
Info—InputShowsdischargepressure,condensing,dischargeand
subcoolingtemperatures.
Dischargepressure
U5:0.0barg
Evap.temp:0.0°C
Dischargetemperature
U4:15.7°C
Subcool.temp.5.7°C
Subcooling0.0°C
Info—InputShowstemperaturereadingsfromdischargeandoptional
probes.
Dischargetemperature
U11Comp.2:0.0°C
U12Comp.3:0.0°C
Optionalprobes
U8:0.0°C
U9:0.0°C
U10:0.0°C
Info—InputShowscurrentcapacity.
Capacityreference
U748.5%
Info—InputShowsdigitalinputs
ID1–Alarmreset:Off
ID2–Cooling:Cool
ID3–Defrost:Ok
ID4–RemoteON:On
Info—Dig.InShowsthestatusofalarms.
ID7–Comp.alarm::Ok
ID8–Phasealarm:Ok
ID9–Lowpress.:Ok
ID10–Highpress.Ok
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InformationShowsuserinterfacecodeandpGD1terminalversion.
Showssoftwarereleasedate.
ShowssystembootandBIOSversions.
NOSTDmCOMM
Version:2.1.009
Date:06/05/15
Bios:6.2709/07/04
Boot:5.0009/07/04
InformationShowsinformationaboutcontrollerboard.
Boardtype:
Boardsize:
Totalflash:2048KB
RAM:1024KB
Built-Intype:
Maincycle:
4.8cycle/s0.0°C
5.1.4Servicemenu
Important
•Servicemenuisprotectedwithapasswordandshouldbeaccessedonlybyauthorizedpersonnel.
•Authorizedpersonnelisfullyresponsibleforanychangesintheservicemenu.
•Improperchangesintheservicemenucanresultinmalfunctionoftheunit.
Regardlessofthedisplayedscreen,pressingtheprogrammingkeyaccessesthepasswordentry
screenwhichallowsaccessservicelevelmenus.Presskeyoncontrolpanel,use,arrowkeys
toselectadigitandconrmeachdigitwithanarrowkey.Insertthecorrectpassword(default1111).
Theuserwillbeautomaticallyloggedoutfromservicemenuafter5minutesofinactivity.Itispossibleto
logoutwithoutwaiting5minutesinLog-Outmenu.
Servicelevelgivesaccesstoreadallparameterswiththepossibilitytoeditsomeofthem.Theaccess
levelneededtoeditvaluesisshownonthetopleftcornerofthescreenoncesettingforeditingisselected.
Asettingwithaashing“S”letterisintendedtobeusedforserviceandasettingwithashing“M”is
intendedtobeusedbyamanufactureronly.Examplesbelow:
SManualmodeMExV
Comp.1circuit1
Hours:0001hEnablepumpdown:YES
Nextthr.:30000hType:ATSTOP
Status:100%
ManualAUTO
5.1.4.1Manualmode
SettingsinManualmodemenuallowtocontrolcomponentsmanually.Onlyauthorizedpersonnelshould
performchangesinManualmode.Manualcontrolofcomponentsisnecessaryforannualmaintenance
totestsafetyandcontrolfunctionsorafterreplacementofcomponents.
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SManualmodeShowsoperatinghoursoftherstcompressor.
Setnextthresholdofoperatinghoursuntilmaintenance.
Showscurrentstatus.
SetcompressorcontroltoAUTOormanualoutput
0-100%.
Comp.1circuit1
Hours:0001h
Nextthr.:30000h
Status:100%
ManualAUTO
SManualmodeShowsoperatinghoursofthesecondcompressor.
Setnextthresholdofoperatinghoursuntilmaintenance.
Showscurrentstatus.
SetcompressorcontroltoAUTOormanualoutput
0-100%.
Comp.2circuit1
Hours:0001h
Nextthr.:30000h
Status:Off
ManualAUTO
SManualmodeSetmanualpositionofexpansionvalveforheating.The
expansionvalvehave0–480steps.
ExVcirc.1heating
Enablemanual
valveposition:B
Manualvalve
position:IIIIstep
SManualmodeSetmanualpositionofexpansionvalveforcooling.The
expansionvalvehave0–480steps.
ExVcirc.1cooling
Enablemanual
valveposition:B
Manualvalve
position:IIIIstep
SManualmodeSetdateandtimeoftheunit.
Day:17
Month:02
Year:16
Monday
Hour:13
Minute:56
SManualmodeShowscurrentlanguageofthecontrolpanel.
OnlyEnglishlanguageiscurrentlyavailable.
LanguageENGLISH
ENTERtochange
ESCtoconfirm
5.1.4.2Othersettings
Settingsthatarenotshownorexplainedinthisdocumentarepre-conguredatthefactoryandmust
notbechanged.
5.1.5Alarms—Heatpumpsystem
Activealarmscanbecheckedbypressingalarmbutton.
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Itpossibletocheckthealarmdatalogbypressingarrowkey.Ifthereisatleastonealarm,thescreen
ofalarmsisdisplayedandalarmsaresortedbycodefromlessertogreater.
Eachalarmcontainstheinformationneededtounderstandthecauseofthealarm:
Alarms001/002AL018
07/05/201513:28
Lowpressure
bypressostat
Evap.temp.1:0°C
Cond.temp.1:45°C
ENTERforDataLog
Fig.8Alarmsscreen
1.Alarmnumber/totalalarmsanduniquealarmcode.
2.Alarmdateandtimeofoccurrence.
3.Shortalarmdescription.
4.Valueoftheprobelinkedtothealarm.
TheredLEDunderthealarmbuttoncanbe:
•Off:noactivealarm.
•Flashing:thereisatleastoneactivealarmandthedisplayshowsascreenthatisnotpartofthe
alarmsloop.
•On:thereisatleastoneactivealarmandascreenthatispartofthealarmsloopisdisplayed.
5.1.5.1Alarmdatalog
Thealarmdatalogcanbedisplayedbypressingarrowkeywhileinthealarmscreen.
Thealarmdatalogmemorizestheunitoperationstatuswhenthealarmsaretriggered.Eachlogentryis
aneventhatcanbedisplayedfromamongalloftheeventsavailableinthememory.Theinformation
savedinthescreenofalarmswillalsobesavedinthealarmdatalog.Themaximumnumberofevents
thatcanbesavedis100.Oncethelimitisreached,themostrecentalarmwilloverwritetheoldestone.
5.1.5.2Resetalarms
Thealarmscanberesetmanually,automaticallyorautomaticallywithretries:
•Manualreset:whenthecauseofthealarmhasstopped,theuserhastoenteralarmmenuand
acknowledgethealarmbypressingalarmbutton.Theunitwillrestart.
•Automaticreset:whenthecauseofalarmissolved,thesystemwillrestartautomatically.
•Automaticresetwithretries:thenumberofinterventionsperhourischecked.Ifthatnumberislessthan
thesetmaximum,thealarmisonautomaticreset,oncethelimitisexceededitswitchestomanualreset.
5.1.5.3Alarmlist
CodeDescriptionondisplayReset1ActionDelay
AL001ProbeU1brokenordiscon-
nectedANone10s
AL002ProbeU2brokenordiscon-
nectedACircuitOFFNo
AL003ProbeU4brokenordiscon-
nectedACircuitOFF10s
AL004ProbeU5brokenordiscon-
nectedACircuitOFFNo
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CodeDescriptionondisplayReset1ActionDelay
AL005ProbeU6brokenordiscon-
nectedACircuitOFF10s
AL006ProbeU7brokenordiscon-
nectedANoneNo
AL007ProbeU8brokenordiscon-
nectedANone10s
AL008ProbeU9brokenordiscon-
nectedANone10s
AL009ProbeU10brokenordiscon-
nectedANone10s
AL010ProbeU11brokenordiscon-
nectedACompressor2
OFF10s
AL011ProbeU12brokenordiscon-
nectedACompressor3
OFF10s
AL012LowSHalarmMCircuitOFF180s
AL013LOPalarmACircuitOFF180s
AL014MOPalarmACircuitOFF180s
AL015Lowsuctiontemp.ACircuitOFF180s
AL016Highdischargepress.MCircuitOFF3retries
AL017LowsuctionpressureACircuitOFF3retries
AL018Lowpressurebypressostat
(pressureswitch)ACircuitOFF3s
AL019EnvelopealarmACircuitOFF300s
AL020MotorphasealarmACircuitOFFNo
AL021Highpressurebypressostat
(pressureswitch)MCircuitOFF3retries
AL022Highdischargetemp.
compressor1ACircuitOFF60s
AL023Highdischargetemp.
compressor2ACompressor2
OFFNo
AL024Highdischargetemp.
compressor3ACompressor3
OFFNo
AL025Pump-downendformaxtime
circuit1ANoneNo
AL026Maintenancerequestcompressor
1ANoneParameter
AL027Maintenancerequestcompressor
2ANoneParameter
AL028Maintenancerequestcompressor
3ANoneParameter
AL029ClockalarmANoneNo
AL030MemoryexpansiondamagedANoneNo
AL031BMSOfflineA50%60s
1.A—automatic,M—manual
DVCompactOperationandMaintenanceInstructions
21111814SystemairSverigeAB

5.2Controloftheairhandlingunit
Note:
IfDVCompactDXRunitwasorderedanddeliveredwithairhandlingsectionswithoutanyenclosedcontrol
orwiring,itwillnothavecontrolpanelandalternativecontrolmethodhavetobeprovidedbytheinstaller!
5.2.1Controlpanel
TheSCPcontrolpanelisdeliveredwitha10mcablethatisconnectedtothepanelandwithafastcoupling
contact,connectedtotheDVCompactDXRunit.ThecontactisconnectedtotheCorrigocontrollerinthe
electricalconnectionbox.Thecablecanbeunscrewedinthebackofthecontrolpanel(gure9).
Generalinformationisshowningure9.
5.2.1.1OperatingtheControlpanel
Fig.9Thecontrolpanel
Posi-
tion
Explanation
1Alarmbutton:Givesaccesstothealarmlist
2AlarmLED:Indicatesalarmbyashingredlight
3WriteLED:Indicatesbyashingyellowlightthatparameterscanbesetorchanged
4OKbutton:Pressthisbuttontobeabletochangeorsetparameterswheneverpossible.Also
usedtomovebetweenchangeableparametersinonedialoguewindowframe
5Cancelbutton:Usedtoabortachangeandreturntotheinitialsetting
6Right/Left&Up/Downbuttons:Usedtomoveup,down,left&rightinthemenutree.Up/Down
buttonsarealsousedtoincreaseordecreasevalueswhensettingorchangingparameters
7Mountingholes
8Connectionblock
9Connectiontoyellowcable
10Connectiontoorangecable
11Connectiontoredcable
12Connectiontobrowncable
13Connectiontoblackcable
DVCompactOperationandMaintenanceInstructions
21111815SystemairSverigeAB

5.2.1.1.1NavigatingtheMenus
Thestartdisplay(thedisplaynormallyshown)isattherootofthemenutree.PressingDOWNwillmove
youthroughthemenuoptions.UPwillmoveyoubackthroughtheoptions.T oenterahighermenulevel,
useUPorDOWNtoplacethecursoratthemenuyouwishtoaccessandpressRIGHT .Ifyouhave
sufcientlogonprivilegesthedisplaywillchangetothemenuyouhavechosen.
AteachleveltheremaybeseveralnewmenuswhichyoumovethroughusingUP/DOWN.Sometimes
therearefurthersubmenuslinkedtoamenuormenuitem.Thisisindicatedbyanarrowsymbolatthe
right-handsideofthedisplay.Toenteramenu,pressRIGHTagain.Tostepbacktopreviousmenu
level,useLEFT.
5.2.2Commissioning
5.2.2.1BeforeStartingtheSystem
Whentheinstallationisnished,checkthat:
•Theunitisinstalledinaccordancewiththeinstallationinstructions
•Theunitiscorrectlywired
•Theductsystemiscorrectlyconnectedtotheunit
•Outdoorairintakeispositionedwithsufcientdistancetopollutionsources
•Allexternalequipmentareconnected
•Thefollowingdataisavailable:
•Intendedconguration,forexampletemperaturecontrolfunctions,fancontrol,externalcontrol
functionsetc.
•Howtheunitissupposedtooperateaccordingtoaweeklyschedule(normalandreducedspeed).
5.2.2.2Initialsetupoftheunit
Ontherststart-up,thecontrollerwillstartaspecialprogramforsettinglanguage,supplyairtemp
setpoint,Time&dateandweekschedulefornormalspeed.Usethe“OK”buttontomovebetween
changeableparametersandtheUP/DOWNarrowstoseethedisplayedalternatives.Conrmbypressing
“OK”oncemore.MoveondowninthemenustructurebyuseoftheUP/DOWNarrows.
Thefollowingwillbedisplayed:
1
Selectlanguagebypressing“OK”andthenmove
betweenthealternativeswiththeUP/DOWN
buttons.Conrmbypressing“OK”.Movetothe
nextlevelbypressingthe“DOWN”button.
ChooseLanguage
English
gure
2
Showstheactualextractairtemperature
Setthesupplyairsetpoint.Defaultis18°C(logon
toservicelevelneeded,code2222,tochange
defaultsetting)
Extractairtemp
Actual:....ºC
Setp.:18ºC
gure
3
Checkandmakesurethatcorrecttimeanddateis
displayed,ifnotchangethesettings
Time:12.46
Date:2010–03–12
Weekday:Friday
gure
DVCompactOperationandMaintenanceInstructions
21111816SystemairSverigeAB

4
Settheweekscheduleforhowit’sintendedforthe
unittooperateatnormalspeedduringMondayto
Friday.It’spossibletoset2periodsperday.
Normalspeed
Monday→Friday
Per1:07:00–16:00
Per2:00:00–00:00
gure
5
Settheweekscheduleforhowit’sintendedforthe
unittooperateatnormalspeedduringSaturdays
andholidays.It’spossibletoset2periodsperday.
Normalspeed
Saturday→Holiday
Per1:00:00–00:00
Per2:00:00–00:00
gure
6
Settheweekscheduleforhowit’sintendedforthe
unittooperateatreducedspeedduringMondayto
Friday.It’spossibletoset2periodsperday
Reducedspeed
Monday→Friday
Per1:00:00–00:00
Per2:00:00–00:00
gure
7
Settheweekscheduleforhowit’sintendedforthe
unittooperateatreducedspeedduringSaturdays
andholidays.It’spossibletoset2periodsperday.
Reducedspeed
Saturday→Holiday
Per1:00:00–00:00
Per2:00:00–00:00
gure
8
Select“Yes”or“No”
EndWizard
No
gure
Afternishingthesetupthemenusystemfor“Operatorlevel”willbeavailable.
SeebelowmenuoverviewthatdisplaystheavailablemenusintheOperatorlevelfollowedbythe
“Servicelevel”manual.
ToenterServicelevelusecode2222inthe“Accessrights”menu.Foroperatorlevelusecode1111.
Note:
ToperformmoreadvancedsettingspleaseseetheenclosedCDwheretheCorrigoE–manualcan
befound.
5.2.2.3MenuoverviewOPERATOR/SERVICELEVEL
BelowmenuoverviewshowsboththeOperatorandServicelevel.Theoverviewofthepartsuniqueto
theServicelevelinbelowtablearemarkedwithgreybackgroundcolor.TologontotheServicelevel
usecode2222underAccessrights.
DVCompactOperationandMaintenanceInstructions
21111817SystemairSverigeAB

MainmenuitemSub-menuitem1Sub-menuitem2Explanations
SystemairAS
2010–03–1509:00
System:Stopped
Sp:18.0Act:ºC
Startscreenheadline
Canbesetto5differentlayouts
(Changeableat“systemlevel”
undertheconfiguration
menu).
→Runningmode→RunningmodeRunningmode
Auto
SetRunningmodetoAuto,
OnorOff
Runningtime
SAF:0.0h
EAF:0.0h
Showsthetimeinhoursthat
themotorshavebeenoperating
SAF=Supplyairfan
EAF=Exhaustairfan
→Selected
functions
Control
function
Extractair
control
Fancontrol
Flowcontrol
Showstypeofairtemperature
controltheunitisconguredfor.
Showstypeoffanspeed
controltheunitisconguredfor
Heating:Water
Exchanger:
Rot.Excha
Cooling:Water
Showstypeofheatingselected
Showstypeofexchanger
selected
Showstypeofcoolingselected
Freecool
active:No
Showsthestatusofthefree
coolingfunction
Supportcontrol
Active:No
CO2/VOCactive
Never
Showsthestatusofthesupport
controlfunction
Showsthestatusofthe
demandventilation(CO2/VOC)
function
Firedamper
function
Notactive
Operationwhen
alarm
Stopped
Showsthestatusofthere
damperfunction
Frost
protection
Active
Cooling
recovery
No
Showsthestatusofthefrost
protectionfunction
Showsthestatusofthecooling
recoveryfunction
Externalset
point
Notactive
Showsthestatusofthe
externalsetpoint
DVCompactOperationandMaintenanceInstructions
21111818SystemairSverigeAB