SystemAir DVCompact Series, DVCompact DXR-15, DVCompact DXR-10, DVCompact DXR-20 Operation And Maintenance Instructions

DVCompact

WithReversibleHeatPumpSection

OperationandMaintenanceInstructions

©2016CopyrightUABSystemair

UABSystemaircanacceptnoresponsibilityforpossibleerrorsincatalogues,brochuresandotherprinted
material.UABSystemairreservestherighttoalteritsproductswithoutnotice.Thisalsoappliesto
productsalreadyonorderprovidedthatsuchalterationscanbemadewithoutsubsequentialchanges
beingnecessaryinspecicationsalreadyagreed.

Allrightsreserved.

Documentinoriginallanguage

2016-08-31A001

211118-EN_GB

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uorinatedgreenhousegasesinquantitiesof5tonesofCO
ormore”anditmustbecheckedforleaks.Leakagecontrolwithrecordkeepingshallbedoneonce

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equivalent

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
2
3

Productcode(productspecication)
Productitemnumber/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

1

2

3

4

5

6

7

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Extractairfan

Supplyairfan

Extractairlters

Supplyairlters

Frequencyconverter,supplyairfan

Frequencyconverter,extractairfan

Differentialpressuretransmitter(CAV),extractair

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PositionDescription

8

9

10

11

12

13

14Rotaryheatexchanger

15Rotormotor

16Rotorbelt

17Rotorguard

18Drainpipe

Differentialpressuretransmitter(CAV),supplyair

Electricconnectionboxoftheairhandlingunit,Corrigocontroller

Electricconnectionboxoftheheatpump,Carelcontroller

Compressors

Evaporator/Condensercoilintheextractaircompartment

Evaporator/Condensercoilinthesupplyaircompartment

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.InV AVunitspressuresensorswillbedeliveredloosely
withtheunittobemountedinthesupplyandextractairducts,see“Installationinstructions”formore
informationconcerningV AVinstallations.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

Position

1

2

3

4

5

6

Symbol

Description

•Alarmsymbol

Displaythelistofactivealarms

•Prg—programmingkey

Accessthemainmenu

•Esc

Returntothepreviousscreen

•Enterarrow

Switchfromparameterdisplaytoedit
Conrmvalueandreturntotheparameterlist

•Uparrow

Navigatebetweenthedisplayscreensorincreasethevalueshownon
thedisplay

•Downarrow

Navigatebetweenthedisplayscreensordecreasethevalueshownon
thedisplay

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5.1.1Mainscreen

Thefollowingillustrationisanexampleofthemainscreenwithanactiveunit:

31/03/2016

Comps:

ExV:

Req:50%→17%
Regulating

Thu

CntDwn:

0°0K

Fig.4Mainscreen

1.Dateandtime.

2.Currentstatusoftheunit:

Summer

UnitOFF

3.Statusofinternaldevices:

•Compressorsinoperationandtheircapacity.

•Countdown,minimumtimebetweenon/off.

•SuperheattemperatureinKandexpansionvalveopeningin%.

4.Systemcapacityrequestandactualpoweroutput:

•SystemOFF

•ONbyinput(butnocapacitysignal)

•Regulating

•Pump-Down(timerisactive)

•Manualmode

•OFFalarm

mode

(cooling)

11:56

35%
11s

0%

Wintermode

(heating)

Defrostingin

progress

5.Indicatesaccesstotheinformationmenu.Use

toconrm.

,arrowkeysforselectionandarrowkey

5.1.2Basicinformationaboutdevices

Informationaboutthestatusoftheunitisaccessibledirectlyfromthemainmenu,withoutneedtoaccess

submenus.Use,arrowkeystogothroughloopofscreenswhichcontaindetailedinformation
aboutdevices.

Theindividualscreensareshownbelow:

BSynoptic—Circ.1

DZ2:Prev—10%

5.6barg→

EZ8:LoDscgP

5.6barg→

Fig.5Compressorstatus

1.Dischargetemperaturezoneandpreventiveaction.

2.Dischargetemperature.

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70.0°

10.0°

50%

60s

70.2°

10.0°

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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:
Close

10.0barg

0.0°C

Fig.6Expansionvalveoverview

1.Superheatandactualsetpoint.

2.Suctiongastemperature.

3.V alveopeningmode,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,press

5.1.3Informationmenu.

Digitalandanalogueinputs/outputs,alsoinformationaboutrmwareandhardwarearedisplayedin
thesescreens.

arrowkeytoaccessadvancedinformationsubmenus.Moredetailsinsection

5.1.3Informationmenu

Use

Info—Output

Comp.1–Digitalscroll

NO11

NO2Digitalvalve
Power:
Hours:

Info—Output

Compressor2

NO12

,arrowkeystogothroughloopofscreenswhichcontainadvancedinformationaboutdevices.

Showsthestatusoftherstcompressor.

ShowsthestatusofNO2digitalvalve.

On

Off

100.0%

0000/030000h

Showstheloadofthecompressorin%.

Showsremainingtimeuntilmaintenanceofthe

compressor.

Showsthestatusofthesecondcompressor.

Showsremainingtimeuntilmaintenanceofthe

compressor.

Off

Hours:

Info—Output

NO3–Oilvalve:
NO4–4watvalve:
NO5–Lowpressureal.:
NO6–ExValarm:
NO7–Generalalarm:Off
NO9–Defrost:
NO10–Dischargeal.:

Info—Output

Y1–Envelop:
Y2–Comp.fbk:100%
Y3–ExVperc.0%

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0000/030000h

Off

Heat

On

Off

Off
Off

0.0%

Showsdigitaloutputsfromdevicesandalarms.

Showsoutofenvelopepositionin%.

Showscompressorspeedin%.

Showsexpansionvalveopeningin%.

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Info—Input

Suctionpressure
U6:0.0barg
Evap.temp.:
Suctiontemperature
U2:

Showssuctionpressure,evaporatingtemperatureand
suctiontemperature.

0.0°C

0.0°C

Info—Input

Defrost

Evap.temp:
Filtered:
CntDwn:29900
Defroststatus:
Checkstart5s

Info—Input

Dischargepressure
U5:
Evap.temp:
Dischargetemperature
U4:
Subcool.temp.
Subcooling

Info—Input

Dischargetemperature
U11Comp.2:
U12Comp.3:
Optionalprobes
U8:
U9:
U10:

Info—Input

Capacityreference

0.0°C

0.0°C

0.0barg

0.0°C

15.7°C

5.7°C

0.0°C

0.0°C

0.0°C

0.0°C

0.0°C

0.0°C

Showsinformationaboutdefrostinganditsstatus.

Showsdischargepressure,condensing,dischargeand

subcoolingtemperatures.

Showstemperaturereadingsfromdischargeandoptional
probes.

Showscurrentcapacity.

U7

Info—Input

ID1–Alarmreset:
ID2–Cooling:
ID3–Defrost:
ID4–RemoteON:

Info—Dig.In

ID7–Comp.alarm::Ok
ID8–Phasealarm:
ID9–Lowpress.:
ID10–Highpress.

48.5%

Showsdigitalinputs

Off

Cool

Ok
On

Showsthestatusofalarms.

Ok
Ok
Ok

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Information

ShowsuserinterfacecodeandpGD1terminalversion.

NOSTDmCOMM
Version:2.1.009
Date:

Bios:6.27
Boot:5.00

Information

Boardtype:
Boardsize:
Totalflash:
RAM:
Built-Intype:
Maincycle:

4.8cycle/s

06/05/15

09/07/04
09/07/04

2048KB
1024KB

0.0°C

Showssoftwarereleasedate.

ShowssystembootandBIOSversions.

Showsinformationaboutcontrollerboard.

5.1.4Servicemenu

Important

•Servicemenuisprotectedwithapasswordandshouldbeaccessedonlybyauthorizedpersonnel.

•Authorizedpersonnelisfullyresponsibleforanychangesintheservicemenu.

•Improperchangesintheservicemenucanresultinmalfunctionoftheunit.

Regardlessofthedisplayedscreen,pressingtheprogrammingkeyaccessesthepasswordentry

screenwhichallowsaccessservicelevelmenus.Press
toselectadigitandconrmeachdigitwithan

Theuserwillbeautomaticallyloggedoutfromservicemenuafter5minutesofinactivity.Itispossibleto
logoutwithoutwaiting5minutesinLog-Outmenu.

Servicelevelgivesaccesstoreadallparameterswiththepossibilitytoeditsomeofthem.Theaccess
levelneededtoeditvaluesisshownonthetopleftcornerofthescreenoncesettingforeditingisselected.

Asettingwithaashing“S”letterisintendedtobeusedforserviceandasettingwithashing“M”is
intendedtobeusedbyamanufactureronly.Examplesbelow:

SManualmode

Comp.1circuit1

Hours:
Nextthr.:

Status:
Manual

0001h

30000h

100%
AUTO

arrowkey.Insertthecorrectpassword(default1 111).

keyoncontrolpanel,use,arrowkeys

MExV

Enablepumpdown:
Type:ATSTOP

YES

5.1.4.1Manualmode

SettingsinManualmodemenuallowtocontrolcomponentsmanually.Onlyauthorizedpersonnelshould
performchangesinManualmode.Manualcontrolofcomponentsisnecessaryforannualmaintenance
totestsafetyandcontrolfunctionsorafterreplacementofcomponents.

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SManualmode

Comp.1circuit1

Hours:
Nextthr.:

Status:
Manual

Showsoperatinghoursoftherstcompressor.

Setnextthresholdofoperatinghoursuntilmaintenance.

0001h

30000h

100%
AUTO

Showscurrentstatus.

SetcompressorcontroltoAUTOormanualoutput

0-100%.

SManualmode

Comp.2circuit1

Hours:
Nextthr.:

Status:
Manual

SManualmode

ExVcirc.1heating

Enablemanual
valveposition:

Manualvalve
position:

SManualmode

ExVcirc.1cooling

Enablemanual
valveposition:

Manualvalve
position:

SManualmode

Showsoperatinghoursofthesecondcompressor.

Setnextthresholdofoperatinghoursuntilmaintenance.

0001h

30000h

Off

AUTO

B

IIIIstep

B

IIIIstep

Showscurrentstatus.

SetcompressorcontroltoAUTOormanualoutput

0-100%.

Setmanualpositionofexpansionvalveforheating.The
expansionvalvehave0–480steps.

Setmanualpositionofexpansionvalveforcooling.The
expansionvalvehave0–480steps.

Setdateandtimeoftheunit.

Day:
Month:
Year:

Hour:
Minute:56

SManualmode

LanguageENGLISH

ENTERtochange
ESCtoconfirm

17
02
16

Monday

13

Showscurrentlanguageofthecontrolpanel.

OnlyEnglishlanguageiscurrentlyavailable.

5.1.4.2Othersettings

Settingsthatarenotshownorexplainedinthisdocumentarepre-conguredatthefactoryandmust
notbechanged.

5.1.5Alarms—Heatpumpsystem

Activealarmscanbecheckedbypressing

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alarmbutton.

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Itpossibletocheckthealarmdatalogbypressingarrowkey .Ifthereisatleastonealarm,thescreen
ofalarmsisdisplayedandalarmsaresortedbycodefromlessertogreater.

Eachalarmcontainstheinformationneededtounderstandthecauseofthealarm:

Alarms001/002

07/05/2015
Lowpressure
bypressostat

Evap.temp.1:
Cond.temp.1:
ENTERforDataLog

AL018

13:28

0°C

45°C

Fig.8Alarmsscreen

1.Alarmnumber/totalalarmsanduniquealarmcode.

2.Alarmdateandtimeofoccurrence.

3.Shortalarmdescription.

4.V alueoftheprobelinkedtothealarm.

TheredLEDunderthe

•Off:noactivealarm.

•Flashing:thereisatleastoneactivealarmandthedisplayshowsascreenthatisnotpartofthe

alarmsloop.

•On:thereisatleastoneactivealarmandascreenthatispartofthealarmsloopisdisplayed.

alarmbuttoncanbe:

5.1.5.1Alarmdatalog

Thealarmdatalogcanbedisplayedbypressing

Thealarmdatalogmemorizestheunitoperationstatuswhenthealarmsaretriggered.Eachlogentryis
aneventhatcanbedisplayedfromamongalloftheeventsavailableinthememory.Theinformation
savedinthescreenofalarmswillalsobesavedinthealarmdatalog.Themaximumnumberofevents
thatcanbesavedis100.Oncethelimitisreached,themostrecentalarmwilloverwritetheoldestone.

arrowkeywhileinthealarmscreen.

5.1.5.2Resetalarms

Thealarmscanberesetmanually,automaticallyorautomaticallywithretries:

•Manualreset:whenthecauseofthealarmhasstopped,theuserhastoenteralarmmenuand

acknowledgethealarmbypressing

•Automaticreset:whenthecauseofalarmissolved,thesystemwillrestartautomatically.

•Automaticresetwithretries:thenumberofinterventionsperhourischecked.Ifthatnumberislessthan
thesetmaximum,thealarmisonautomaticreset,oncethelimitisexceededitswitchestomanualreset.

alarmbutton.Theunitwillrestart.

5.1.5.3Alarmlist

Code

AL001

AL002

AL003

AL004

DescriptionondisplayReset

ProbeU1brokenordiscon­nected

ProbeU2brokenordiscon­nected

ProbeU4brokenordiscon­nected

ProbeU5brokenordiscon­nected

1

ActionDelay

ANone10s

A

A

A

CircuitOFF

CircuitOFF

CircuitOFF

No

10s

No

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13

SystemairSverigeAB

Code

AL005

AL006

AL007

AL008

AL009

AL010

AL011

AL012

AL013

AL014

AL015

AL016

AL017

AL018

AL019

AL020

AL021

AL022

AL023

AL024

AL025

AL026

AL027

AL028

AL029

AL030

AL031

DescriptionondisplayReset

ProbeU6brokenordiscon­nected

ProbeU7brokenordiscon­nected

ProbeU8brokenordiscon­nected

ProbeU9brokenordiscon­nected

ProbeU10brokenordiscon­nected

ProbeU11brokenordiscon­nected

ProbeU12brokenordiscon­nected

LowSHalarm

LOPalarm

MOPalarm

Lowsuctiontemp.

Highdischargepress.

Lowsuctionpressure

Lowpressurebypressostat

(pressureswitch)

Envelopealarm

Motorphasealarm

Highpressurebypressostat

(pressureswitch)

Highdischargetemp.
compressor1

Highdischargetemp.
compressor2

Highdischargetemp.
compressor3

Pump-downendformaxtime
circuit1

Maintenancerequestcompressor
1

Maintenancerequestcompressor
2

Maintenancerequestcompressor
3

Clockalarm

Memoryexpansiondamaged

BMSOffline

1

ActionDelay

A

CircuitOFF

ANoneNo

ANone10s

ANone10s

ANone10s

A

A

M

A

A

A

M

A

A

A

A

M

A

A

A

Compressor2
OFF

Compressor3
OFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

CircuitOFF

Compressor2
OFF

Compressor3
OFF

ANoneNo

ANoneParameter

ANoneParameter

ANoneParameter

ANoneNo

ANoneNo

A

50%

10s

10s

10s

180s

180s

180s

180s

3retries

3retries

3s

300s

No

3retries

60s

No

No

60s

1.A—automatic,M—manual

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SystemairSverigeAB

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

1

2

3

4

5

6

7

8

9

10

11

12

13

DVCompactOperationandMaintenanceInstructions
211 118

Explanation

Alarmbutton:Givesaccesstothealarmlist

AlarmLED:Indicatesalarmbyashingredlight

WriteLED:Indicatesbyashingyellowlightthatparameterscanbesetorchanged

OKbutton:Pressthisbuttontobeabletochangeorsetparameterswheneverpossible.Also
usedtomovebetweenchangeableparametersinonedialoguewindowframe

Cancelbutton:Usedtoabortachangeandreturntotheinitialsetting

Right/Left&Up/Downbuttons:Usedtomoveup,down,left&rightinthemenutree.Up/Down
buttonsarealsousedtoincreaseordecreasevalueswhensettingorchangingparameters

Mountingholes

Connectionblock

Connectiontoyellowcable

Connectiontoorangecable

Connectiontoredcable

Connectiontobrowncable

Connectiontoblackcable

15

SystemairSverigeAB

5.2.1.1.1NavigatingtheMenus

Thestartdisplay(thedisplaynormallyshown)isattherootofthemenutree.PressingDOWNwillmove
youthroughthemenuoptions.UPwillmoveyoubackthroughtheoptions.T oenterahighermenulevel,
useUPorDOWNtoplacethecursoratthemenuyouwishtoaccessandpressRIGHT .Ifyouhave
sufcientlogonprivilegesthedisplaywillchangetothemenuyouhavechosen.

AteachleveltheremaybeseveralnewmenuswhichyoumovethroughusingUP/DOWN.Sometimes
therearefurthersubmenuslinkedtoamenuormenuitem.Thisisindicatedbyanarrowsymbolatthe
right-handsideofthedisplay.T oenteramenu,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.

gure

2

Showstheactualextractairtemperature

Setthesupplyairsetpoint.Defaultis18°C(logon
toservicelevelneeded,code2222,tochange
defaultsetting)

gure

3

Checkandmakesurethatcorrecttimeanddateis
displayed,ifnotchangethesettings

ChooseLanguage

English

Extractairtemp

Actual:....ºC

Setp.:18ºC

Time:12.46

Date:2010–03–12

Weekday:Friday

gure

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SystemairSverigeAB

4

Settheweekscheduleforhowit’sintendedforthe
unittooperateatnormalspeedduringMondayto
Friday.It’spossibletoset2periodsperday .

gure

Normalspeed

Monday→Friday

Per1:07:00–16:00

Per2:00:00–00:00

5

Settheweekscheduleforhowit’sintendedforthe
unittooperateatnormalspeedduringSaturdays
andholidays.It’spossibletoset2periodsperday.

gure

6

Settheweekscheduleforhowit’sintendedforthe
unittooperateatreducedspeedduringMondayto
Friday.It’spossibletoset2periodsperday

gure

7

Settheweekscheduleforhowit’sintendedforthe
unittooperateatreducedspeedduringSaturdays
andholidays.It’spossibletoset2periodsperday.

gure

Normalspeed

Saturday→Holiday

Per1:00:00–00:00

Per2:00:00–00:00

Reducedspeed

Monday→Friday

Per1:00:00–00:00

Per2:00:00–00:00

Reducedspeed

Saturday→Holiday

Per1:00:00–00:00

Per2:00:00–00:00

8

Select“Yes”or“No”

gure

Afternishingthesetupthemenusystemfor“Operatorlevel”willbeavailable.

SeebelowmenuoverviewthatdisplaystheavailablemenusintheOperatorlevelfollowedbythe
“Servicelevel”manual.

ToenterServicelevelusecode2222inthe“Accessrights”menu.Foroperatorlevelusecode1 111.

EndWizard

No

Note:

ToperformmoreadvancedsettingspleaseseetheenclosedCDwheretheCorrigoE–manualcan
befound.

5.2.2.3MenuoverviewOPERATOR/SERVICELEVEL

BelowmenuoverviewshowsboththeOperatorandServicelevel.Theoverviewofthepartsuniqueto
theServicelevelinbelowtablearemarkedwithgreybackgroundcolor.T ologontotheServicelevel
usecode2222underAccessrights.

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SystemairSverigeAB

Mainmenuitem

SystemairAS

Sub-menuitem1Sub-menuitem2

Explanations

Startscreenheadline

2010–03–1509:00

System:Stopped

Sp:18.0Act:ºC

→Runningmode→RunningmodeRunningmode

Auto
Runningtime

SAF:0.0h

EAF:0.0h

→Selected
functions

Control
function

Extractair
control

Fancontrol

Flowcontrol
Heating:Water

Exchanger:
Rot.Excha

Canbesetto5differentlayouts

(Changeableat“systemlevel”
undertheconfiguration
menu).

SetRunningmodetoAuto,
OnorOff

Showsthetimeinhoursthat
themotorshavebeenoperating

SAF=Supplyairfan

EAF=Exhaustairfan

Showstypeofairtemperature
controltheunitisconguredfor.

Showstypeoffanspeed
controltheunitisconguredfor

Showstypeofheatingselected

Showstypeofexchanger

selected

Cooling:Water

Freecool
active:No

Supportcontrol

Active:No

CO2/VOCactive

Never
Firedamper

function

Notactive

Operationwhen
alarm

Stopped
Frost

protection

Active

Cooling
recovery

No
Externalset

point

Showstypeofcoolingselected

Showsthestatusofthefree

coolingfunction

Showsthestatusofthesupport
controlfunction

Showsthestatusofthe
demandventilation(CO2/VOC)
function

Showsthestatusofthere
damperfunction

Showsthestatusofthefrost
protectionfunction

Showsthestatusofthecooling
recoveryfunction

Showsthestatusofthe
externalsetpoint

Notactive

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SystemairSverigeAB

Mainmenuitem

→Temperature

Sub-menuitem1Sub-menuitem2

→Alarmevents

→Input/Output

→Analogue

inputs

→Digital
inputs

→Universal
inputs

→Analogue
outputs

→Digital
outputs

Extractair
temp

Act.:ºC

Setp:18.0ºC

Explanations

Showsallregisteredalarms

alongwiththetimeanddate
theyoccurred

Movedownandupinthelistby
pressing↑↓

Showsthestatusofthe
Ananlogueinputs

ShowsthestatusoftheDigital
inputs

ShowsstatusofUniversal
Analogueinputs

ShowsstatusofUniversal
Digitalinputs

Showsthestatusofthe
Analogueoutputs

ShowsthestatusoftheDigital
outputs

Showsthecongured
temperaturecontrol(Defaultis
Extractairtemp)

Showstheactualtemperature
inthechosencontrolmode

Outdoortemp:
ºC

Supplyairtemp

Actual:ºC

Setp:18ºC

Frost
protection

Actual:ºC

Exhaustair
temp

Ifcascade
control

Max/minsupply
setp.

Max:30ºC

Min:12.0ºC

Setthetemperatureforthe
chosencontrolmode

Setthemaximumandminimum
allowedsupplyairtemperature
incaseofcascadecontrol

Logontoservicelevelneeded
tochangesettings

Showstheactualoutdoorair

temperature

Showstheactualsupplyair
temperature

Showsthecalculatedsupply
airsetpoint.Theexhaust
aircontrolleroutputsignal
generatesthesupplyair
controller’ssetpointvalue

Showstheactualwater
temperatureinthewater
heatingbattery .(Onlyvisiblefor
HWunits)

Showstheactualexhaustair
temperature.

Actual:ºC

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SystemairSverigeAB

Mainmenuitem

→AirControl

Sub-menuitem1Sub-menuitem2

Efficiency

Exchanger

Actual:%

Flowcontrol
SAF

Explanations

Showstheactualheatrecovery

efciency

Thefunctioncalculatesthe
heatexchangerstemperature
efciencyin%whenthe
outputsignaltotheexchanger
ishigherthan98%andthe
outdoortemperatureislower
than10°C.

Whenthecontrolsignalis
lowerthan98%ortheoutdoor
temperatureishigherthan10°C
thedisplaywillshow0%.

Thismenuoptionbecomes
visibleiftheunitiscongured
for"Flowcontrol"or"Pressure
control"

Showsairowforthesupplyair
fan(constantairowcontrol)

Actual:m³/h

Setp.:m³/h

Flowcontrol
EAF

Flowcontrol
SAF

Setp1/1:1100
m³/h

Setp1/2:550
m³/h

Outdoor
comp.Setp.1

—20°C=10m³/h

0°C=0m³/h

Act.Comp:0
m³/h

Onlyvisibleiftheunitis
conguredforFlowcontrol

Setthenormal(1/1)and
reduced(1/2)airowforthe
supplyairfan

SettheSAFairow
compensationforthesettable
outdoortemperature.The
outdoorcompensationislinear
andissetusingtwoparameter
pairswhichgivethevalueofthe
compensationattwodifferent
outdoortemperatures.The
compensationcanbepositive
ornegative.

Showstheactualairow
compensation.

Showsairowfortheextract
airfan(constantairowcontrol)

Actual:+INF
m³/h

Onlyvisibleiftheunitis
conguredforFlowcontrol

Setp.:m³/h

Flowcontrol
EAF

Setp1/1:1100

Setthenormal(1/1)and
reduced(1/2)airowforthe
extractairfan

m³/h

Setp1/2:550
m³/h↓

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SystemairSverigeAB

Mainmenuitem

Sub-menuitem1Sub-menuitem2

Outdoor
comp.Setp.1

—20°C=10m³/h

0°C=0m³/h

Act.Comp:0
m³/h

Pressure
controlSAF

Actual:Pa

Setp.:Pa

Pressure
controlSAF

Setp1/1:250
Pa

Explanations

SettheEAFairow

compensationforthesettable
outdoortemperature.The
outdoorcompensationislinear
andissetusingtwoparameter
pairswhichgivethevalueofthe
compensationattwodifferent
outdoortemperatures.The
compensationcanbepositive
ornegative.

Showstheactualairow
compensation.

Showstheactualexternal
pressureandsetpointforthe
supplyairfan.

Onlyvisibleiftheunitis
conguredfor"Pressure
control"(VAV)

Settheexternalpressureset

pointfornormalspeed(1/1)
andreducedspeed(1/2)forthe
supplyairfan.

Pressure
controlEAF

Actual:Pa

Setp.:Pa

Setp1/2:100
Pa

Outdoor
comp.Setp.1

—20°C=0Pa

10°C=0Pa

Act.Comp:0
Pa

Pressure
controlEAF

Setp1/1:250
Pa

SettheSAFpressure
compensationforthesettable
outdoortemperature.The
outdoorcompensationislinear
andissetusingtwoparameter
pairswhichgivethevalueofthe
compensationattwodifferent
outdoortemperatures.The
compensationcanbepositive
ornegative.

Showstheactualpressure
compensation.

Showstheactualexternal
pressureandsetpointforthe
extractairfan.

Onlyvisibleiftheunitis
conguredfor"Pressure
control"(VAV)

Settheexternalpressureset

pointfornormalspeed(1/1)
andreducedspeed(1/2)forthe
supplyairfan.

Setp1/2:100
Pa

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SystemairSverigeAB

Mainmenuitem

→Timesettings

Sub-menuitem1Sub-menuitem2

Outdoor
comp.Setp.1

—20°C=0Pa

10°C=0Pa

Act.Comp:0
Pa

→Time/Date

→Timernormal

speed

→Timerreduced
speed

Explanations

SettheEAFpressure

compensationforthesettable
outdoortemperature.The
outdoorcompensationislinear
andissetusingtwoparameter
pairswhichgivethevalueofthe
compensationattwodifferent
outdoortemperatures.The
compensationcanbepositive
ornegative.

Showstheactualpressure
compensation.

Setcorrecttimeanddate.

SetweekscheduleMondayto

Sunday+Holidayfornormal
speed.Possibletoset2periods
perday.

00:0024:00forcontinuous
running.00:0000:00
inactivatestheperiod.

Notethesettingsinthe
commissioningrecord

SetweekscheduleMondayto
Sunday+Holidayforreduced
speed.Possibletoset2periods
perday.

00:0024:00forcontinuous
running.00:0000:00
inactivatestheperiod.

Notethesettingsinthe
commissioningrecord

→Extended

running

Extended
running

60min

Timeinext.
running

0min

Setthetimeforextended
running.Digitalinputscanbe
usedtoforcetheunittostart
orincreasetoNormalrunning
althoughthetimersaysthe
runningmodeshouldbeOffor
Reduced.

Iftherunningtimeissetto0
theunitonlyrunsaslongasthe
digitalinputisclosed.

Thetimetheextendedrunning
isactiveismonitoredin"Time
inext.Running".

It'salsopossibletosetatime
hereaswellinordertoshorten
theinitialsetperiod.

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22

SystemairSverigeAB

Mainmenuitem

Sub-menuitem1Sub-menuitem2

→HolidaysHolidays

(mm:dd)

Explanations

Setupto24separatepossible

holidayperiodsforafullyear.

1:01–01—01–02

2:09–04—09–10

3:01–05—01–05

Aholidayperiodcanbeany
numberofconsecutivedays
fromoneandupwards.

Thedatesareintheformat:
MM:DD.

Whenthecurrentdatefalls
withinaholidayperiod,the
schedulewillusethesettings
fortheweekday“Holiday”.

→Manual/Auto

Inthismenutherunningmode
ofalltheconguredoutput
signalsandanumberofcontrol
functionscanbemanually
controlled.

Thesupplyaircontroller's
outputsignalcanbemanually
set(Manual/Auto)toanyvalue
between0and100%.The
temperatureoutputsignalswill
changeaccordinglyiftheyare
inAutomode.Itisalsopossible
tomanuallycontroleachof
thetemperatureoutputsignals
individually.

Supply
Temperature
contr.

Auto

Manualset:

0.0

SAF:Auto

Manualset:

0.0

EAF:Auto

Manualset:

0.0
Heating

Auto

Manualset:

100.0

Sinceleavinganyofthe
outputsinmanualcontrolwill
disruptthenormalcontrol,
analarmwillbegeneratedas
soonasanyoutputissettoa
manualmode.

Setthesupplyairtemperature

to"Auto","On"or"Off".

Settheoutputsignalbetween
0-100%.

TheoutputsY1,Y2andY3,if
inAuto-mode,willfollowthe
signalaccordingtothesetsplit
values.

SetthestartsignalforSAF
(supplyairfan)&EAF(exhaust
airfan)to"Auto,Manual

fullspeed,Manualhalf
speedorManual

SettheheatingtoAuto,
ManualorOff

Setthemanualoutput0-100%

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SystemairSverigeAB

Mainmenuitem

Sub-menuitem1Sub-menuitem2

Exchanger

Auto

Manualset:

0.0
Cooling

Auto

Manualset:

0.0

Explanations

Settheexchangerrotorcontrol

toAuto,ManualorOff

Setthemanualoutput0-100%

SetthecoolingtoAuto,

ManualorOff

Setthemanualoutput0-100%

Note:

Needstobeactivatedinorder
tobevisiblehere

P1–Heating

Auto

P1–Exchanger

Auto
P1–Cooling

Auto
Firedamper

Auto

Freshair
damper(Outdoor
airdamper)

Auto
Exhaustair

damper

Setthepumpcontrolforthe
heatingcoiltoAuto,OnorOff

Setthepumpcontrolfora
possiblerunaroundcoilto
Auto,OnorOff

Setthepumpcontrolforthe
coolingcoiltoAuto,OnorOff

SettheFiredampertoAuto,
OpenorClose

Note:

Needstobeactivatedinorder
tobevisiblehere

Congurationofredamper
functionsaremadeatSystem

level

SettheOutdoorairdamperto

Auto,OpenorClose

SettheExhaustairdamperto

Auto,OpenorClose

Auto

→Settings

→Controltemp

DVCompactOperationandMaintenanceInstructions
211 118

Supplyair
control

P-band:

33.0°C

I-time:100.0
sec

24

Inthismenugroupthesettings
fortheactivatedfunctionsare
available.Dependingonwhich
choiceshavebeenmadeinthe
congurationmenusomeofthe
possiblealternativesmaynot
bedisplayed.

SetP-bandandI-timeforthe
Supplyaircontrolfunction

Note:

SeeCorrigoEventilation2.3
manualfordeeperexplanation

SystemairSverigeAB

Mainmenuitem

Sub-menuitem1Sub-menuitem2

Roomcontrol

P-band:

100.0°C

I-time:300.0
sec

Explanations

SetP-bandandI-timeforthe

Roomcontrolfunction

Note:

SeeCorrigoEventilation2.3
manualformoreinfo

→Controlflow

Shutdownmode

P-band:

100.0°C

I-time:100.0
sec

→Frost
protection

Active

Setpshutdown:

25.0°C

P-bandactive:

5.0°C
Faststop

atfrost
protection
alarm

Yes

Flowcontrol
SAF

P-band:

10000.0m³/h

I-time:10.0
sec

SetP-bandandI-timeforthe
Shutdownfunction

Note:

SeeCorrigoEventilation2.3
manualfordeeperexplanation

P-bandactive5°Cmeansthat
thefrostprotectioncontroller
willstartoverridingtheheating
outputwhenthefrostprotection
temperatureislessthan5
degreesabovethesetfrost
alarmdefaultalarmlimitis7°C

Setthefaststopoftheunitin
caseoffrostprotectionalarmto
YesorNo.

AlternativelyPressure
controlifchoseninthe
congurationoftheunitfrom
factory

SetP-band,I-timeandMin.
outputforthesupplyair
fanwhentheunitcomes
conguredasFlowcontrol
fromfactory .Alternatively
Pressurecontrolifthat
congurationischosen

Min.output:
0%

Flowcontrol
EAF

P-band:

10000.0m³/h

I-time:10.0
sec

SetP-band,I-timeandMin.
outputfortheExtractair
fanwhentheunitcomes
conguredasFlowcontrol
fromfactory .Alternatively
Pressurecontrolifthat
congurationischosen

Min.output:
0%

→Alarm
settings

→Alarmlimits

Setthealarmlimitsandallowed
deviationsforthedifferent
functions

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SystemairSverigeAB

Mainmenuitem

→Configuration

Sub-menuitem1Sub-menuitem2

→Alarmdelays

Restorefactory

settings:No

Restoreuser

settings:No

Saveuser
settings

No

→Control
function

Control
function

Mode:

Roomcontrol

Explanations

Setthealarmdelaysand

alloweddeviationdelaysforthe
differentfunctions

Inthismenu,itispossibleto
restoreallparameterstotheir
factorysettingsortotheuser
settingstheyweresavedas

earlier.

SelectYesorNo

Thecurrentcongurationcan
besavedinaseparatememory
areaandcanlaterberestored
usingthepreviousmenu,
Restoreusersettings.Select
YesorNo

Settypeoftemperaturecontrol
functionyouwanttheunit
tooperateunder.Choose
between

Extractaircontrol,
"Roomcontrol,Outdoor
comp.Supply,Supply
aircontrol,

Extract/supplyair

→(possibletoswitchbetween
thetwodependingonoutdoor
temp.),

Room/supplyair

→(possibletoswitchbetween
thetwodependingonoutdoor
temp.),

→Freecooling

Freecool
active:No

Outd.temp
activation

22°C

Setfreecoolingactiveto"Yes
orNo.

Settheloweroutdoorday
temperaturelimitforthe
activationofthefreecooling
function.Thetemperatureof
thepreviousdayneedstobe
overthesettemperaturein
orderactivatethefreecooling
function.

Outd.temp
night

High:15.0°C

Low:5.0°C

Roomtempmin.
18°C

Settheupperoutdoornight
temperaturelimitforthe
activationofthefreecooling
function

Settheloweroutdoornight
temperaturelimitforthe
activationofthefreecooling
function

Setthelowerroomtemperature
limit.Thetemperatureneedsto
beabovethisvalueforthefree
coolingfunctiontostayactive

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SystemairSverigeAB

Mainmenuitem

Sub-menuitem1Sub-menuitem2

Hourfor
start/stop

Explanations

Setthestartandstoptimefor

thefreecoolingfunction

Freecooling

Start:0

Stop:7

ForexampleStart:0and

Stop:6

meansthatthefreecooling
sequenceisactivebetween

00.00and06.00h.

Timetoblock
heatoutput
afterFree
cooling

60min

Setthedelayinminutesfrom
thetimewherethefreecooling
sequencehasstoppeduntila
possibleheatingsequenceis
initiated,i.e.howlongacooler
roomtemperaturethanset
temperaturecanbeaccepted

Fanoutputwhen
freecooling

SAF:0%

Setthefanspeedinpercentage
ofthenormalspeedforeach
fanindividuallyduringthefree
coolingsequence

EAF:0%
Outdoorsensor

placedin

Setiftheoutdoorsensoris
placedintheintakeductornot.

intakechannel

(intakeduct)

No

→Support

Supportcontrol

control

Active:No

EAFrunning
duringSupport
contr.:Yes

ChoosebetweenNoandYes

PresetisNo.

Whenusingthecontrol
functionroomcontrolor
extractairtemperature
control,itispossibleto
utilizesupport-heatingand/or
support-cooling.Minimum
runningtimeissettable0…720
minutes.(factorysetting20
minutes).Choosebetween
“Active:YesorNo”.

(Forstartandstoptemperatures
seethe"T emperature"menu)

Min.runtime
forsupport

Settheminimumrunningtime
inminutesforsupportcontrol

ctrl:60min

→CO2/VOC
Control

CO2/VOCactive

Never

Type:Fan

Min.time:60
min

Inapplicationswithvarying
occupancythefanspeeds
ormixingdamperscan
becontrolledbytheair
qualityasmeasuredbya
CO2/VOC-sensor.Seeencl.
corrigomanual(CD)fordet.
explanation

SetactivetoNever,Always
orIftimechanneloff.

Setwhatshouldberegulated.
SelecttypebetweenFanor

Mixingdampers

Setthemin.timetheunitis
activatedbytheCO2/VOC
demandfunction

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Mainmenuitem

Sub-menuitem1Sub-menuitem2

Activation
level

Explanations

Settheactivationlevelat1/2

speed

1/2–speed:800
ppm

1/1–speed:

Settheactivationlevelat1/1
speed

Setalloweddiff.value

1000ppm

diff:160ppm

→Humidity
control

Humidity
control

Notactive

Sartlimit:
15%

Stoplimit:5%

Setthehumidity
controltoHumid-

/Dehumidification,
Dehumidification,
HumidificationorNot
active.

Setthestartlimitandstoplimit
in%RH

Applicableforexternal
Humidicationor
Dehumidicationdevice.

→Cooling

recovery

Cooling
recovery

No

Coolinglimit:

2.0°C

SetthecoolingrecoverytoYes
orNo.

Setthecoolinglimit(the
differenceintemperature
betweenextractairandoutdoor
airthatactivatesthecooling
recovery).

→Enthalpy

control

Cooling
recoveryrun
whenenthalpy
isgreater
outdoorthan
indoor:Not
active

Coolingrecoveryfunction
basedontheenthalpy
differencebetweenoutdoors
andindoors.Startsthe
coolingrecoveryfunctionifthe
calculatedenthalpyisbigger
outdoors.

SetthefunctiontoActiveor
Notactive

→Minlim.
dampers

Minlimit
dampers

Notactive

Min.limit.:

5.0%

Applicableforexternalmixing
dampers(re-circulatedair)

SetthisfunctiontoActiveor
Notactive

Settheminimumoutdoor
airlimit(settablebetween
0-100%).

→Accessrights

→LogonLogon

Enterpassword
xxxx

Actuallevel:
None

Logontoservicelevelby
enteringa4-digitcode.After
reachingthedesiredlevelgo
backwith“LEFT”arrow(press
2times)onthecontrolpanel.

Standardcodefromfactory
toenterservicelevelis2222.
Backtooperatorlevel:1111

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Mainmenuitem

Sub-menuitem1Sub-menuitem2

→LogoffLogoff

No

Actual
level:None

→Change
password

Changepassword
for

Explanations

Logofffromsystemlevelby

changing"No"to"Yes"withthe
"OK"and"UP/DOWN"buttons

Automaticlogoffafter6minutes
ofinactivity.

Setanewpasswordforthe
levelofyourchoice.

level:None

Newpassword
xxxx

Canonlybedoneoncelogged
ontotheservicelevel.

5.2.2.4Freecoolingdescription

Thisfunctionisusedduringthewarmperiodtosaveenergybyusingcoldoutdoorair,e.g.duringnight
time,tocooldownthebuilding.

Note:

ThefollowingisonlyvalidifthefreecoolingfunctionissettoActiveintheprogrammenu.

Freecoolingisonlyactivatedwhenthefollowingstartingconditionsaremet.

Startingconditions:

•Lessthan4dayshavepassedsincetheunitwaslastinrunningmode

•Theoutdoortemperatureduringthepreviousrunningperiodexceededasetlimit(+22°C)

•Itisbetween00:00and07:00:00intheday(settable)

•Thetimeroutputsfornormalspeed,ExtendedrunningnormalandExternalstopareOff

•AtimechannelwillbeOnsometimeduringtherecentlystarted24hours.

Theunitchecksthenighttemperature(indoorandoutdoortemperature)during3minutesattheset
startinghourwhenthefansarestartedsothatthesensorscanperformatemperaturemeasurement.If
aboveconditionsaremetthefreecoolingfunctionisstarted,ifnottheunitgoesbacktoOFFposition.

Iftheoutdoorsensorisnotlocatedintheoutdoorairinletductandaroomsensorhasbeenselected,
theunitwillnotstartfreecoolingaslongasallthetemperaturesarenotwithinthestartandstop
temperatureintervals.

Stopconditions:

•Outdoortempabovethesetmaxvalue(+18°C)orbelowthesetminvalue(condensationrisk,+10°C)

•Theroomtemp/extractairtempisbelowthesetstopvalue(+18°C)

•Oneofthetimeroutputsfornormalspeed,ExternalstoporExtendedrunningnormalisOn

•Thetimehaspast07:00:00.

Whenfreecoolingisactive,thefansrunatnormalspeedorthesetvalueforpressure/owcontroland
thedigitaloutputFreecoolingisactive.TheoutputsY1-Heating,Y2-Heatexchangerand
Y3-Coolingareshutdown.Afterfreecoolinghasbeenactivated,theheatingoutputisblockedfor60
minutes(congurabletime).

5.2.3Alarms

Thealarmbutton(pos.1,gure9)opensthealarmqueue.Whenpressingthisbuttonactiveand
non-acknowledgedalarmswillbedisplayedinthemenuwindow.Thealarm-LED(pos.2,gure9)is
ashingiftherearenon-acknowledgedalarmsandsteadyifthealarmsarestillactivebuthavebeen
acknowledged.Iftherearemultiplealarms,useUP/DOWNtomovebetweenthem.Analarmcanbe
acknowledgedorblockedbyusingOKandUP/DOWN.T oabortandgobacktostartmenupresscancel
andthenpressLEFT .

SeeCommissioningrecordforanoverviewofpossiblealarms.

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6Maintenance

MaintenanceoftheDVCompactDXRisofgreatimportanceforthewholeinstallationsenvironmental
inuence,operatingeconomy,durability,securityandfunctions.

Important

•ReadtheWarnings(chapter1)andRefrigerantControl/Reporting(chapter2)beforedoingany
workontheDVCompactDXRunit.

Maintenanceshouldbecarriedatleastonceayear,apartfromgeneralcleaningthefollowingshouldbe
done:

1.Leakagecontrolwithregistration

Differentregulationscanbevalidindifferentcountries.Checkwithyourlocalgovernment.

2.Generalcontrol.

Whenunitisrunninglistenforabnormalsoundsandvibrations.Inspectoccurrenceofoilleakage(can
beasymptomonrefrigerantleakage).Inspectoccurrenceofcorrosion,frettingdamages,loosen
pipesuspensions.

3.Controlofthecoolingcoil(evaporatorcoil)andcondensercoil.

Afteralongtimeofusethecoilscanobtainadepositthatobstructstheheattransferandairow.
Vacuumcleanthecoilscarefullyfromthedirtyside.

4.Controlofthedriptray.

Afteralongtimeofusethedriptrayandthedraincanobtainadepositthatobstructsthedrainofthe
condensationwater.Cleanthedriptray,drain,watersealandpipesfromdirtanddeposits.

6.1Important

Danger

•MakesurethattheMainssupplytotheunitisdisconnectedbeforeperforminganymaintenanceor
electricalwork!

•Allelectricalconnectionsmustbecarriedoutbyanauthorizedinstallerandinaccordancewith
localrulesandregulations.

Warning

•AlthoughtheMainssupplytotheunithasbeendisconnectedthereisstillriskforinjuryduetorotating
partsthathavenotcometoacompletestandstill.

•Bewareofsharpedgesduringmountingandmaintenance.Useprotectiveclothing.

6.2MaintenanceIntervals

Thetablebelowshowsrecommendedmaintenanceintervalsfortheunitandtheinstallation.T o
ensurealongoperationlifetimefortheunititisimportanttoperformmaintenanceaccordingtobelow
recommendationsandthattheyareperformedaccordingtotheoperationandmaintenanceinstructions.A
thoroughandrecurrentmaintenanceisamustforavalidguarantee.

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TypeofmaintenanceOnceayear

Unit

•Cleaningtheunit

•Inspectionofsealsandlocks

Filters

•Replacinglters

Fans

•Cleaningthefan

•Inspectionofvibrationdampersandexibleconnections

RotatingHeatexchanger

•Cleaningtheheatexchanger

•Inspectionofsealsandbrushes

•Inspectionoftherotorregulation

Heatpump

•Checkingthecompressor

•Checkingtheevaporatorforpotentialleakage

•Checkingthecondenserforpotentialleakage

Re-heaterbattery

•Venting

•Checkingthestatusofthebattery

•Inspectionoftheoverheatprotectionthermostat(EL
battery)

Coolingbattery

•Venting

•Cleaningthedrainpan

•Checkingthestatusofthebattery

•Inspectionofthedropletseparator

Cleaningsupplyairdiffusers

Cleaningtheoutdoorairintake

Cleaningtheductsystem

Cleaningthecondenser/driptray

Dampers

•Checkingthedampers

•Cleaningthedampers

Whennecessary

X

X

X

X

X

X

X

X

X

1

X

X

X

1.Orinaccordancewithlocalrulesandregulations

6.3Cleaningtheunit

Duringlongtermoperationdustandgreasemayslowlybuildupinsidetheunit.Theunitshouldbecleaned
onceayearwhenoperatingundernormalairconditionswithnospecialhygienerequirements.Cleanthe
unitwithadryclothorusewatermixedwithnoncorrosivecleaningmedium.Anycorrosionshouldbe
cleanedoffimmediatelyandthesurfacetreated.Inspecialoperatingconditionstheunitshallbecleaned
morefrequencythanrequired.Cleaningmediumandmethodshouldbeadaptedtotherelevantconditions.

Closingmechanismsshouldbelubricatedatleastonceayear.Syntheticdoorhingesareservicefree.
Sealsaroundinspectiondoorsshouldbecleanedatleastonceayear.Itisrecommendedtotreattheseals

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withamoistureofrepellentagent.Connectingpiecesfortheunitsections,includingthedisc-locktypes
aretobecheckedfortightnessatleastonceareyear.Allsealshavetobeinspectedatleastoneayear.

6.4ChangingSupply/Extractairlter

Thebagltercannotbecleanedandmustbechangedwhennecessary.

ThefactoryinstalledltersareoflterqualityM6orF7forboththesupplyairandextractairlter.Thelter
typeislabelledonthetopofthelter.NewlterscanbeorderedfromSystemairUAB.

Operationtimebetweenlterchangesdependsontheairpollutionattheinstallationsite.Adifferential
pressureswitchindicateswhenit’stimetochangethelters.Thiswilltriggeranalarminthecontrolpanel.

Whenthisoccursdothefollowing:

1.Replacethelterswithnewonesasdescribedbelow

2.Acknowledgethealarmbypressingtheredbuttononthecontrolpanel(pos.1gure9)followedbyOK
(pos.4gure9)

3.Choose→AcknowledgebypressingOK

Theltersaretakenoutbypullingthemoutformthelterrailandreplaced(gure10).

Gasketsbetweeneachltershallalsobereplaced.

Fig.10Changinglters

6.5Checkingtherotatingheatexchanger

Afteralongtimeofusedustmaybuildupintheexchangerandblocktheairow.Itisimportanttoclean
theexchangerregularlytomaintainhighefciency .Thecompleterotatingheatexchangerblockcanbe
takenoutoftheunit(gure11)inthesmallermodelstofacilitatecleaningandmaintenance.Washinhot
soapywaterorusepressureair.Donotusedetergentcontainingammonia.

Checkatleastonceayearthattheexchangerrotorrotateseasily.Checkthisbyremovingthedriving
beltandmovetherotorbyhand.Checkalsothatthebrushesareundamaged.Therotorbearingsare
permanentlylubricatedfromfactoryandshouldnotbere-greased.

Check4timesperyearthatthedrivingbeltissufcientlytense,thatitfollowsthetracksandthatitis
undamaged.Ifthebelttensionistoolowitneedstobeshortened.

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Fig.11Dismountingtherotatingheatexchanger

Note:

Makesurethattherotormotorisnotexposedtomoisture.

6.6Checkingthefans

6.6.1Cleaning

Eveniftherequiredmaintenance,suchaschangeoflters,iscarriedoutdustandgreasemayslowly
buildupinsidethefans.Thiswillreducetheefciency.Thefanmotorcanoverheatifathicklayerofdust
preventstheairfromenteringthemotortocooldownthestatorstructure.

•Theexternalsurfacesmaybecleanedwitha
clothorasoftbrush.Iftheyareseverelyfouled,
useanenvironmentallyfriendlyde-greasing
agent.Donotusewater.Whitespiritcanbe
usedtoremoveobstinatesettlements.Allow
dryingproperlybeforestartingtheunit.

•Wipethefanimpellerbladestoremoveany
coatings.Useonlytheenvironmentallyfriendly
de-greasingagent.

6.6.2Inspection

•Checkifthefanimpellerrotateseasily,isinbalanceanddoesnotvibrate.

•Checkifthefanimpellerisxedandoverlapsinletcone.

•Listentothesoundcomingfromthemotorbearings.Itshouldmakeaslightpurringsound.Ascraping
orpoundingsoundcanindicatethatthebearingsaredamagedandshouldbechanged.

•Checkiftherubberanti-vibrationmountingsarenotdamagedandintact.

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•Checkthemountingscrewsandtightenifnecessary.

6.7Checkingthecompressor

Mandatoryannualcontrolmustbedonebytrainedservicepersonnel.Theserviceissuedbythepump
manufacturermustbefollowed.Thepressureexpansionsystemmustbecheckedonceayear.If
necessary,thepressuremustbeincreasedtothecorrectlevel.

6.7.1Inspection

Suggestionforchecksmayinclude:

•Anyabnormalnoisesfromthecompressor;

•Oilleaksfrompipesorcompressor;

•Anycorrosiononsolderingorpipes;

•AnyrellingwithrefrigerantR410A;

•Visualchecksinsightglass.

6.8Checkingtheevaporatorandcondenser

Theevaporator/condenserwillhavereducedcapacityifdustformsacoatingonthecoilsurfaceand
increasesthepressuredropontheairside.EveniftheDVCompactDXRisttedwiththeextractair
lters,dusteventuallywilldepositonthecoilns.

6.8.1Cleaning

•Usethevacuumcleanertoremovedustfromthe
inletsideofyoucanblowthemwithcompressed
airfromtheoutletside;

•Usehotwatermixedwithnoncorrosiveclean­ingmediumandrinseusingwater.Anycorro­sionshouldbecleanedoffimmediatelyandthe
surfacetreated.

6.8.2Inspection

•Checkthecoilnsforanydamage;

•Checkifrefrigerantisnotleaking;

•Checkthedipdrayanddrain,cleanifnecessary;

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7Troubleshooting

Shouldproblemsoccur,pleasecheckorcorrectthefollowingbeforecontactingyourservicerepresentative.
Alwayscheckifthereareanyalarmsactiveinthecontrolpanel.

1.Fan(s)donotstart

•Checkifthereareanyalarmmessages

•Checkthatthefusesarenotdefect

•Checkthesettingsinthecontrolpanel(times,weekschedule,auto/manualoperationetc.)

2.Compressordonotstart

•Checkifthereareanyalarmmessages

•Checkifmainssupplytotheheatpumpsectionisnotmissing.Inspectexternalfusesandsafety
switch

3.Reducedairow

•Checkthesettingsformediumandlowfanspeed

•Checkthattheoutdoor/exhaustairdamper(ifused)opens

•Checkifltersneedchanging

•Checkifdiffusersandlouvresneedcleaning

•Checkdiffuser/louvreopenings

•Checkiffansandexchangerblockneedcleaning

•Checkiftheroofunitorairintakeisclogged

•Checkductsforvisibledamageand/orbuildupofdust/pollution

4.Coldsupplyair

•Checkthecontroltemperatureonthecontrolpanel

•Checkiftheoverheatingthermostathastripped.Ifnecessaryresetthemanualoverheatprotection
situatedontheelectricalheaterframe

•Checkiftheextractlterneedstobechanged

•Checkifthefanshavestoppedduetooverheating.Ifsothethermalcontactmighthavetripped
(showsasFanalarminthecontrolpanel)

5.Noise/vibrations

•Checkthattheunitiscompletelylevelled

•Cleanthefanimpellers

•Checkthatthescrewsholdingthefansaretightenedproperly

•Checkantivibrationpadsandexibleconnections

8Additionalinformationonpersonnelsafetyand protectivemeasures

8.1Informationonairbornenoiseemissions

DuetothedesignandconstructionoftheunitstheA-weightedsoundpressurelevelfromthefanandother
componentsdonotexceed70dB(A)outsidetheunits.

8.2Personnelsafetymeasures

Adjustmentsandmaintenancemustbedoneonlybytrainedservicepersonnel.Thepotentialsourcesof
harmarethefanswithfastrotatingimpellers,heatexchangerrotorandthehotsurfaceoftheheating
battery.Theimpellersarestillapotentialhazardevenafterpowercut-offbecauseofafter-runthatcanlast
upto5minutes.

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Inordertoensurepersonnelsafetytheinspectiondoorsareprovidedwithalock.

9Disposalandrecycling

Disposalmustbecarriedoutprofessionallyandenvironmentallyfriendlyinaccordancewiththelegal
stipulations.

ThisproductareapplicabletotheWEEEdirective.Whendisposingtheunit,follow
yourlocalrulesandregulations.

Thisproductpackingmaterialsarerecyclableandcanbereused.Donotdisposein
householdwaste.

9.1Disposaloftheheatpumpunit

PriortothedisposaloftheDVCompactDXRunittherefrigerantintheheatpumpsystemmustbedrained
offbytrainedservicepersonnelfromacertiedcompany.Aftercorrectevacuationoftherefrigerantthe
disposaloftheunitsectionissimilartothedisposaloftherestoftheairhandlingunit.

Note:

Differentregulationscanbevalidindifferentcountries.Checkwithyourlocalgovernmentbeforedisposal
ofthecompressor.

9.2Disposaloftheairhandlingunit

Noadditionalsafetymeasuresarerequiredforthedisposaloftheairhandlingunit.Contactyourlocal
wastemanagementcompanyformoreinformation.

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lastpage

SystemairSverigeABreservestherighttomakechangesandimprovementstothe

contentsofthismanualwithoutpriornotice.

SystemairUAB

Linųst.101

LT–20174Ukmergė,LITHUANIA

Phone[phone]

Fax[phone]

www.systemair.com