Accorroni Pack due 7 User manual



0310‐2012D.P.

‐Thesections5.1,9.3and22.2havebeenupdated,thechangeoftheheatingwireofthe

antifreezingkitisconsidered(it’sdirectlyenergizedandequippedwithanintegrated

thermostat).

0209‐2012D.P.

‐Inthesection8.7weaddedatableofalarms,descriptionsandcauses.

‐ Inthesection13.1thenumbercircuitofthecondensorofthemodel16,andwe

updatedthedimensionsofthepackingofthemodels12and16.

‐Inthesection15thecurveisupdated.

‐Thesection17isimprovedwithdescriptionsmoreclearandtables.

‐Wiringdiagramsareupdated(wiringofthemanostat).

0107‐2012

0006‐2012D.P./

Rev Date Author Descreption of updates

Catalogo/Catalogue/Katalog/Catalogue

MTE14110C5420‐03

Serie/Series/Serie/Serie/Série

CHILLERSANDINVERTERAIR/WATERHEATPUMPSWITHAXIALFANSANDREMOTECONDENSINGUNITS

D.P.‐RefrigerantchargeischangedforthemodelsPACK DUE12and16.



INDEX

1AIMANDCONTENTSOFTHISMANUAL ....................................................................... 5

1.1 HOWTOKEEPTHISMANUAL.................................................................................................................................................. 5

1.2 GRAPHICSYMBOLS................................................................................................................................................................. 5

2SAFETYLAWS .............................................................................................................. 5

3GENERALSAFETYGUIDELINES ..................................................................................... 5

3.1 HEALTHANDSAFETYOFWORKERS ........................................................................................................................................ 6

3.2 PERSONALPROTECTIONEQUIPMENTS .................................................................................................................................. 6

3.3 SAFETYSYMBOLS.................................................................................................................................................................... 6

3.4 REFRIGERANTSAFETYDATASHEET ........................................................................................................................................ 7

4TECHNICALCHARACTERISTICS ..................................................................................... 8

4.1 FRAME.................................................................................................................................................................................... 8

4.2 REFRIGERANTCIRCUIT............................................................................................................................................................ 8

4.3 COMPRESSORS ....................................................................................................................................................................... 8

4.4 AIRSIDEEXCHANGERS............................................................................................................................................................ 8

4.5 FANS ....................................................................................................................................................................................... 8

4.6 USERHEATEXCHANGERS ....................................................................................................................................................... 8

4.7 ELECTRICBOX ......................................................................................................................................................................... 8

4.8 MICROPROCESSORS ............................................................................................................................................................... 8

4.9 MONITORINGANDPROTECTIONDEVICES ............................................................................................................................. 9

4.10 HYDRAULICCIRCUIT ............................................................................................................................................................... 9

4.11 FANSPEEDCONTROLLER........................................................................................................................................................ 9

5AVAILABLEVERSIONS .................................................................................................. 9

5.1 ACCESSORIES.......................................................................................................................................................................... 9

6INSTALLATION ............................................................................................................. 9

6.1 GENERALITY............................................................................................................................................................................ 9

6.2 LIFTINGANDHANDLING....................................................................................................................................................... 10

6.2.1 INDOORUNIT ............................................................................................................................................................... 10

6.2.2 OUTDOORUNIT............................................................................................................................................................ 10

6.3 LOCATIONANDMINIMUMTECHNICALCLEARANCES .......................................................................................................... 10

6.3.1 INDOORUNIT ............................................................................................................................................................... 10

6.3.2 OUTDOORUNIT............................................................................................................................................................ 10

6.4 HYDRAULICCONNECTIONS .................................................................................................................................................. 10

6.4.1 CONNECTIONDIAGRAMS............................................................................................................................................. 10

6.4.2 PLANTLAYOUTDESIGN ................................................................................................................................................ 11

6.4.3 CONNECTIONSPOSITIONS ........................................................................................................................................... 12

6.4.4 DRAINAGECONNECTION ............................................................................................................................................. 12

6.5 REFRIGERANTDIAGRAM ...................................................................................................................................................... 13

6.6 ELECTRICALCONNECTIONS .................................................................................................................................................. 13

6.6.1 TERMINALBLOCKCONNECTIONS ................................................................................................................................ 14

7STARTUP................................................................................................................... 15

8INDOORUNITCONTROLPANEL ................................................................................. 16

8.1 LED........................................................................................................................................................................................ 16

8.2 FUNCTIONSOFBUTTONS ..................................................................................................................................................... 16

8.2.1 LEVELSOFACCESS ........................................................................................................................................................ 16

8.3 DESCRIPTIONOFTHEMAINDISPLAY.................................................................................................................................... 17

8.3.1 NAVIGATIONBETWEENDISPLAYS................................................................................................................................ 17



8.4 OPERATINGMODES.............................................................................................................................................................. 17

8.4.1 OPERATIONMODESETTING......................................................................................................................................... 17

8.5 PROCEDURE.......................................................................................................................................................................... 17

8.5.1 SET‐POINTSELECTION .................................................................................................................................................. 17

8.6 DESCRPTIONOFFUNCTIONS ................................................................................................................................................ 17

8.6.1 ACCESSTOTHEFUNCTIONS......................................................................................................................................... 17

8.7 ALARMS................................................................................................................................................................................ 18

8.8 ADJUSTMENTOFSANITARYWATERVALVE.......................................................................................................................... 18

9MICROPROCESSORUSERINTERFACE ......................................................................... 18

9.1 DISPLAY ................................................................................................................................................................................ 19

9.2 LED........................................................................................................................................................................................ 19

9.3 ANTIFREEZEPROTECTIONRESISTANCES(IFTHEKASACCESSORYISPRESENT) ............................................................................. 19

9.4 ALARMS................................................................................................................................................................................ 19

9.4.1 Sensoralarms ............................................................................................................................................................... 19

9.4.2 Timeoutinverter.......................................................................................................................................................... 19

9.4.3 Highpressure ............................................................................................................................................................... 19

9.4.4 Highpressureflowswitch(inserieswiththecompressoroutletprobe) .................................................................... 19

9.4.5 Lowpressure ................................................................................................................................................................ 19

9.5 POWERFAILURE ................................................................................................................................................................... 19

9.6 ALARMSLIST......................................................................................................................................................................... 20

10 SHUTDOWNSFORLONGPERIODS ............................................................................. 20

11 MAINTENANCEANDPERIODICCHECKS ..................................................................... 20

11.1 ENVIRONMENTALPROTECTION ........................................................................................................................................... 21

12 WHENTHEUNITGOESOUTOFSERVICE .................................................................... 21

13 TECHNICALDATA....................................................................................................... 22

13.1 OUTDOORUNITS .................................................................................................................................................................. 22

13.2 INDOORUNITS...................................................................................................................................................................... 23

14 ELECTRICDATA .......................................................................................................... 23

15 EFFECTIVEHEADPRESSURES...................................................................................... 24

16 PERFORMANCESCURVES........................................................................................... 25

16.1

16.2

16.3

16.4

17.1 EVAPORATORWATERFLOWRATE ................................................................................................................................................. 33

17.2 COLDWATERTEMPERATURE(SUMMEROPERATION) ........................................................................................................................ 33

17.3 HOTWATERTEMPERATURE(WINTEROPERATION) ........................................................................................................................... 33

17.4 AMBIENTAIRTEMPERATURE........................................................................................................................................................ 33

18 CORRECTIONFACTORS .............................................................................................. 34

18.1 CORRECTIONFACTORS:OPERATIONWITHGLYCOL ..................................................................................................................... 34

19 DIMENSIONS ............................................................................................................. 34

19.1 INDOORUNIT ....................................................................................................................................................................... 34

19.2 OUTDOORUNIT.................................................................................................................................................................... 35

OPERATIONLIMITS.................................................................................................... 33

MOD.PACK DUE9 ................................................................................................................................................................. 27

MOD.PACK DUE12 ............................................................................................................................................................... 29

MOD.PACK DUE16 ............................................................................................................................................................... 31

MOD.PACK DUE7 ................................................................................................................................................................. 25

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20 ACCESSPROCEDURETOINTERNALPARTS ................................................................. 35

20.1 INDOORUNIT ....................................................................................................................................................................... 35

20.2 OUTDOORUNIT.................................................................................................................................................................... 35

21 COMPONENTSOFINDOORANDOUTDOORUNITS .................................................... 36

21.1 INDOORUNIT ....................................................................................................................................................................... 36

21.2 OUTDOORUNIT.................................................................................................................................................................... 36

22 WIRINGDIAGRAMS ................................................................................................... 37

22.1

22.2

22.2.1

22.2.2

22.2.3

23 SOLARMODULE(OPTIONALACCESSORY) .................................................................. 41

23.1

23.2 WIRINGDIAGRAM ................................................................................................................................................................ 42



ASSEMBLY............................................................................................................................................................................. 41

OUTDOORUNITS .................................................................................................................................................................. 38

WiringdiagramofPACK DUE12 .................................................................................................................................. 39

INDOORUNITS...................................................................................................................................................................... 37

WiringdiagramofPACK DUE9 .................................................................................................................................... 38

WiringdiagramofPACK DUE16 .................................................................................................................................. 40

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theoperatorthusmeetingtherequirementslistedinthe2006/42/CEEquipmentDirectiveandfollowingamendments.

1AIMANDCONTENTSOFTHISMANUAL

addressedtomachineoperatorsanditenablesthemtousetheequipmentefficiently,eveniftheydonothaveanyprevious

specificknowledgeofit.

Thismanualdescribesthecharacteristicsoftheequipmentatthetimeitisbeingputonthemarket;therefore,itmaynotcapture

ergonomics,safetyandfunctionalityofitsproducts.

1.1 HOWTOKEEPTHISMANUAL

Themanualhastobealwayskeptwiththeunititrefersto.Ithastobestoredinasafeplace,awayfromthedustandmoisture.It

hastobeaccessibletoalluserswhoshallconsultitanytimetheyareindoubtonhowtooperatetheequipment.

versionsofthe



referencematerial.Thecustomershallstoreanyupdatedcopyofthemanualorpartsofitdeliveredbythe

manufacturerasanattachmenttothismanual.

andthemaintenanceofitsownunits.

1.2 GRAPHICSYMBOLS



Indicatesoperationsthatcanbedangerousforpeopleand/ordisruptsthecorrectoperationoftheequipment.



Indicatesprohibitedoperations.



Indicatesimportantinformationthattheoperatorhastofollowinordertoguaranteethecorrectoperationofthe

equipmentincompletesafety.

2SAFETYLAWS

inforceandwithotherEuropeanandnationalnormsasrequiredbytheCouncilDirective(98/37andlateramendments).

Theequipmentsmeetalsothefollowingrequirements:

•ENISO12100Rule

•ENISO13857Rule

•EN378‐1,378‐2,378‐3e378‐4Rules

•EN12735‐1Rule

•ENCEI60204‐1Rule

•EN1050Rule

•ENCEI61000‐6‐1Rule

•ENCEI61000‐6‐3Rule

•97/23/CE,2006/95/CE,2004/108/CE,2002/95/CECommunityDirectives

3GENERALSAFETYGUIDELINES

equipmentanditscontrolsandhastohavereadandunderstoodtheinformationlistedinthismanual.



It’sstrictlyforbiddentoremoveand/ortamperwithanysafetydevice.



Anyroutineornot‐routinemaintenanceoperationshallbecarriedoutwhentheequipmenthasbeenshutdown,

disconnectedfromelectricandpneumaticpowersourcesandafteritspneumaticsystemhasbeendischarged.



Donotputneitheryourhandsnorinsertscrewdrivers,spannersorothertoolsintomovingpartsoftheequipment.



Theequipmentsupervisorandthemaintenancemanhastoreceivesuitabletrainingfortheperformanceoftheir

tasksinsafety.



Operatorshavetoknowhowtousepersonalprotectivedevicesandhavetoknowtheaccident‐preventionguidelines

containedinnationalandinternationallawsandnorms.

ThePACK DUEmanualcontainsallthenecessaryinformationforthebetteruseoftheequipmentundersafetyconditionsfor

Thismanualprovidesbasicinformationasfortheinstallation,theoperationandthemaintenanceofthePACK DUEunits.Itis

latertechnologicalimprovementsintroducedbyA2B ACCORRONI E.G. aspartofitsconstantendeavourtoenhancethe

performance,

A2B ACCORRONI E.G.reservestherighttomodifyitsproductsandrelatedmanualswithoutnecessarilyupdatingprevious

A2B ACCORRONI E.G.isavailabletogiveanydetailedinformationaboutthismanualandtogiveinformationregardingtheuse

A2B ACCORRONI E.G.’sequipmentsandtheircomponentpartshavebeendesignedincompliancewiththeharmonisedECnorms

BeforebeginningtooperateonPACK DUEunitseveryuserhastobeperfectlyknowledgeableaboutthefunctionsofthe



3.1 HEALTHANDSAFETYOFWORKERS

TheEuropeanCommunityhasadoptedanumberofdirectivesonworkplace’shealthandsafety,whichinclude89/391/CEE,

89/686/CEE,89/655/CEE,86/188/CEEand77/576/CEEdirectives.Everyemployershallimplementsuchprovisionsandensure

thatworkersrespectthem:



Donottamperwithorreplacepartsoftheequipmentwithoutthespecificconsentofthemanufacturer.The

manufacturershallhavenoresponsibilitywhatsoeverincaseofunauthorisedoperations.



Usingcomponents,expendablematerialsorsparepartsthatdonotcorrespondtothoserecommendedbythe

manufacturerand/orlistedinthismanualmaybedangerousfortheoperatorsand/ordamagetheequipment



Theoperator’sworkplacehastobekeptclean,tidyandfreefromobjectsthatmaypreventfreemovements.

Appropriatelightingoftheworkplaceshallbeprovidedsoastoallowtheoperatortocarryouttherequired

operationssafely.Poorortoostronglightingcancauserisks.



Ensurethatworkplacesarealwaysadequatelyventilatedandthataspiratorsareworking,ingoodconditionandin

compliancewiththerequirementsofthelawsinforce.

3.2 PERSONALPROTECTIONEQUIPMENTS



Protectiveclothing:Maintenancemenandoperatorshastowearprotectiveclothingthatcomplieswiththebasic

safetyrequirementscurrentlyinforce.Incaseofslipperyfloors,usershavetowearsafetyshoeswithnon‐slipsoles.



Gloves:Duringmaintenanceorcleaningoperationprotectiongloveshavetobeused



Maskandgoggles:Respiratoryprotection(mask)andeyeprotection(goggles)shouldbeusedduring

cleaningandmaintenanceoperations.

3.3 SAFETYSYMBOLS

Theequipmentfeaturesthefollowingsafetysigns,whichhastobecompliedwith:



Generalhazard

Electricshockhazard



WhenoperatingandmaintainingthePACK DUEunits,usethefollowingpersonalprotectiveequipments.



3.4 REFRIGERANTSAFETYDATASHEET

Name:R410A(50%Difluoromethane(R32);50%Pentafluoroethane(R125).

RISKSINDICATIONS

Majorrisks:Asphyxia

Specificrisks:Therapidevaporationcancausefreezing.

FIRSTAID

Generalinformations:Nevergiveanythingbymouthtoanunconsciousperson.

Inhalation:Outdoorsopenstransport.

Useoxygenorartificialrespirationifnecessary.

Donotgiveadrenalineorsimilardrugs

Eyescontact:Rinsecarefullywithwaterforatleast15minutesandconsultadoctor.

Contactwithskin:Washimmediatelywithplentyofwater.

Takeoffimmediatelythecontaminatedclothes.

FIREPREVENTION

ExtinguishingMedia:Whatever.

Specifcrisks:Increaseinpressure.

Specificsmethods: Usewaterspraytocoolcontainers

MISUREINCASODIFUORIUSCITAACCIDENTALE

Personalprecautions:Evacuatepersonneltosafeareas.

Provideadequateventilation.

Usepersonalprotectiveequipment.

Environmentalprecautions:Evaporate.

Cleaningmethod: Evaporate.

MANIPOLAZIONEESTOCCAGGIO

Manipulation

Action/technicalprecautions: Providesufficientairexchangeand/orexhaustinworkrooms.

Recommendationsforsafeuse:Donotbreathevaporsorspraymist.

Storage:Closetightlyandstoreinacool,dryandwellventilatedplace.

Storeinoriginalcontainer.Incompatibleproducts:explosive,flammablematerials,Organicperoxide

EXPOSURECONTROL/PERSONALPROTECTION

Controlparameters: AEL(8‐he12‐hTWA)=1000ml/m³foreachofthetwocomponents.

Respiratoryprotection:Forrescueandmaintenanceoperationinstoragetanksuseself‐containedrespiratorapparatus.

Thevaporsareheavierthanairandcancausesuffocationbyreducingoxygenavailableforbreathing.

Eyesprotection: Safetyglasses.

Protectionofhands: Rubbergloves.

Hygienemeasures:Donotsmoke.

PHYSICALANDCHEMICALPROPERTIES

Colour: Colourless.

Odor: Light.

Boilingpoint:‐52.8°Catatmosphericpressure.

Lightingpoint:donotignite.

Relativedensity:1.08kg/lat25°C.

Solubilityinwater:Negligible.

STABILITYANDREACTIVITY

Stability: Noreactivitywhenusedwiththeappropriateinstructions.

Materialstoavoid: Highlyoxidizingmaterials.Incompatiblewithmagnesium,zinc,sodium,potassiumandaluminum.

Theincompatibilityismoreseriousifthemetalispresentinpowerderformorifthesurfaceswere,recently,unprotected.

DecompositionproductsTheseproductsarehalogenatedcompounds,hydrogenfluoride,carbonoxides(CO,CO2),carbonylhalides.

Risks:

TOXICOLOGICALINFORMATION

Acutetoxicity:(R32)LC50/inhalation/4hours/onrat>760ml/l

(R125)LC50/inhalation/4hours/onrat>3480mg/l

Localeffects:ConcentrationssubstantiallyabovetheTLVmaycausenarcoticeffects.

Inhalationofdecomposedproductsofhighconcentrationsmaycauserespiratoryfailure(pulmonaryedema).

Longtermtoxicity:Didnotshowcarcinogenic,teratogenicormutageniceffectsinanimalexperiments.

ECOLOGICALINFORMATION

Globalwarmingpotential1730

GWP(R11=1):

Potentialdepletion0

OzoneODP(R11=1):

Disposalconsiderations:Usablewithreconditioning.



4TECHNICALCHARACTERISTICS

unitsareextremelyversatileandcanoperateinheatpumpmodewiththeabilityofproducinghotwateratatemperatureof55°C

forenvironmentalheatingandsanitaryapplications.TheINVERTERcompressorwithbrushlessDCmotortechnology,matched

withelectronicexpansionvalve,pumpandvariablespeedbloweraregenerallyusedforoptimizingthepowerconsumptionand

efficientoperationoftherefrigeratingcomponents.

4.1 FRAME

ensurethebestresistanceagainstatmosphericagents.Theframeisself‐supportingwithremovablepanels.Allscrewsandrivets

foroutdoorinstallationsareinstainlesssteel.

4.2 REFRIGERANTCIRCUIT

TherefrigerantgasusedintheseunitsisR410A.Therefrigerantcircuithasbeenmanufacturedbymeansofinternationalprimary

brandscomponentsandaccordingtotheUNIEN13134ruleconcerningweldingprocedures.Therefrigerantcircuitincludes:

Safetydeviceonthegasside,4wayreversecyclevalve,electronicexpansionvalve,liquidreceiver,valvesformaintenanceand

control,pressuresafetydeviceaccordingtoPEDregulation(highpressureswitch),pressuretransducerstoaccuratelyadjustthe

evaporatingandcondensingpressures,filtersforthrottlingvalvetoavoiditsclogging.

4.3 COMPRESSORS

usedwithR410refrigerant.Thecompressorsareallsuppliedwithcrankcaseheaterandthermaloverloadprotection.Theyare

mountedonarubbermaterialactingasashockabsorbers.

Thecompressorsaremountedinaseparatechamberinordertobeseparatedfromtheairstreamtoreducethenoise.The

crankcaseheaterisalwayspoweredwhenthecompressorisinstand‐by.Theinspectionispossiblethroughthefrontalpanelof

theunitthatallowthemaintenanceofthecompressorseveniftheunitisworking.

4.4 AIRSIDEEXCHANGERS

Theairsideexchangersaremadeupofcopperpipesandaluminiumfins.Thediameterofthecopperpipesis3/8”(exceptforthe

tubesaremechanicallyexpandedintothealuminiumfinstoimprovetheheatexchangefactor.Thegeometryofthesecondensers

guaranteealowairsidepressuredropandthenaerofoilblades.Theyarestaticallyanddynamicallybalancedandsupplied

completeofthesafetyfanguardaccordingtotheEN60335Rule.Theyaremountedontheunitframebyinterpositionofrubber

vibrationdampers.Theelectricmotorsareallat6poles(about800/900rpm).Themotorsaredirectlydrivenwithanintegrated

thermaloverloadprotection.TheprotectionclassofthemotorsisIP54.

4.5 FANS

Thefansareaxialtypewithaluminiumaerofoilblades.Theyarestaticallyanddynamicallybalancedandsuppliedcompleteofthe

safetyfanguardaccordingtotheEN60335rule(safetyforelectricalapparatusofdomesticandsimilaruse).Theyaremountedon

theunitframebyinterpositionofrubbervibrationdampers.Theelectricmotorsareallat6poles(about800/900rpm).The

motorsaredirectlydrivenwithanintegratedthermaloverloadprotection.TheprotectionclassofthemotorsisIP54.

4.6 USERHEATEXCHANGERS

TheuserheatexchangersaremadeupofAISI316stainlesssteelbraze‐weldedplatestype.Theuseofthesekindofheat

exchangersallowsamassivereductionoftherefrigerantchargeoftheunitcomparedtothetraditionalshell‐in‐tubeevaporators

andalsoareductionoftheoveralldimensionsoftheunit.Theuserheatexchangersarefactoryinsulatedwithflexibleclosecell

material.Eachheatexchangerisprovidedwithatemperaturesensorworkingasantifreezeprotection.

4.7 ELECTRICBOX

TheelectricboxismanufacturedaccordingtocurrentEuropeanUnionlaws.Theaccessibilitytotheboardispossibleafter

removingthefrontpaneloftheunit.TheprotectiondegreeisIP55.Theoutdoorunitterminalboardissuppliedwithvoltagefree

contactsforgeneralalarm,outdoortemperaturesensor(whenexpected).Theindoorunitterminalboardissuppliedwithsanitary

watertemperaturesensorandhandlingof3‐wayvalve.

4.8 MICROPROCESSORS

electronicexpansionvalvewhichisdrivenbythepressuretransducerssignals.Themicroprocessorisalsocapableofcontrolling

thefollowingfunctions:watertemperatureregulation,antifreezeprotection,compressor’stimesetting,compressorautomatic

startingsequence,alarmreset,alarmmanagementandoperatingLED.ThecontrolsystemtogetherwiththeINVERTERtechnology

ThePACK DUEwaterchillersandheatpumpsseriesaredesignedforapplicationsinresidentialandcommercialareas,These

AllPACK DUEunitsaremadeupofhot‐galvanisedthicksheetmetal,paintedwithpolyurethanepowderenamelsat180°Cto

TheusedDCinvertercompressorsarearotaryhermeticsingle‐phasetype(onlyforthemodelsPACK DUE7andPACK DUE9)

andtwinrotarysingle‐phase(forthemodelPACK DUE12),andscroll3‐phasestype(forPACK DUE16)designedtobe

modelPACK DUE7inwhichthediameterofthecopperpipesis5/16”)andthethicknessofthealuminiumfinsis0,1mm.The

AllPACK DUEunitsarestandardsuppliedwithamicroprocessoradoptinganoverheatingcontrollogicprogramthroughthe



andtheonboardsensorscontinuouslymonitorandadapttheperformanceoftheinvertercompressor,ofthepumpandofthe

conditionsrequestedbytheuser.

Allinternalunitsarestandardsuppliedwiththefollowingmonitoringandprotectiondevices:returnwatertemperaturesensor

installedatthereturnwaterpipelinefromtheplant,operatingandantifreezesensorinstalledattheoutletpipeofthewaterto

theplantandonwatersideawaterflowswitchisinstalledtoprotecttheevaporator.Allinternalunitsaresuppliedwithhigh

pressuretransducer,lowpressuretransducer,compressor’sinletandoutlettemperaturesensors,compressorsthermalprotection

device,fansthermalprotectiondevice,highpressureflowswitch.



4.10 HYDRAULICCIRCUIT

waterutilizationanddirectlyrunbythemicroprocessorthatcontrolstherelatedstartupandproperrunning.Thehydrauliccircuit

alsoincludes:expansionvessel,safetyvalve(3bar)andtheautomaticairreleasevalve.

4.11 FANSPEEDCONTROLLER

Thisdeviceisrequiredwiththeunitrunningincoolingmodewhentheoutsideairtemperatureisbelow20°C,thusreducingthe

airflowrateofthecondensorandadaptingtheevaporatingpressureinordertoallowproperrunningoftheunit.Thisdevicecan

alsobeusedtoreducethenoiseleveloftheunitwhentheoutsideairtemperaturedecreases(e.g.duringnightoperationperiod).

5AVAILABLEVERSIONS

pump,flowswitch,automaticairreleasevalveload/unloadvalve).

5.1 ACCESSORIES

AG–Anti‐vibrationrubberpadtobeinstalledinthechassisoftheunitforpossibleshockabsorption.

KAS‐antifreezingkit(thisaccessoryhavetoberequiredwhentheorderisplacedandhavetobefactoryinstalled).Itismadeup

ofanauto‐heatingcablethermostatedat5°Candwrappedaroundthebaseoftheunitnearthecondensingcoil.

6INSTALLATION



WARNING:AlltheoperationdescribedinnextchaptersMUSTBEDONEBYTRAINEDPEOPLEONLY.Beforeanyoperation

ontheunit,besurethattheelectricsupplyisdisconnected.

6.1 GENERALITY

Wheninstallingorservicingtheunit,itisnecessarytostrictlyfollowtheruleslistedinthismanual,toconformtoallthe

specificationsofthelabelsontheunit,andtotakeanypossibleprecautions.Notobservingtherulesreportedonthismanualcan

fan(2fansasforthePACK DUE16models)accordingtothevalueofcoolingpoweratanyworking

ThePACK DUEINVERTERsystemfirmreducestheplant’swatercontenttotheminimum,thatisfromtheusualvalueof

cooling12‐15l/kWto10liters(asforthePACK DUE7andPACK DUE9modeltypes)orto16liters(asforthemodel

PACK DUE12)orto20liters(asforthemodelPACK DUE16),INABSOLUTE,asforthePACK DUEunits.Becauseofthe

appliance’sreducedsize,theinstallationspace,heatlossandinstallationcosts.

4.9 MONITORINGANDPROTECTIONDEVICES

reducedwatercontent,thePACK DUEunitscanbeinstalledinplantswithoutwatertankwithadvantagesintermsofthe

DUE12andPACK

uptoavalueof10liters(asforthemodelsPACK DUE7andPACK DUE9),orof16liters(asforthemodel

absolutevalueandnottoanykWofinstalledpower.

CAUTION:Havingafixed∆T(°C),theINVERTERcontrolsystemisabletomanageplant’sminimumwatercontents

PACK DUE12),andof20liters(asforthemodelPACK DUE16).Thisvaluemakesreferencetotheliters’

ThePACK DUEchillersunitsaresuppliedwithanintegratedhydrauliccircuitincludingthecirculatingpump,suitableforchilled

PACK.DUE‐reversibleheatpumpwithintegratedhydronicsystem(expansionvessel,safetyvalve,pressuregauge,circulating

anyeventualdamagehastobequestionedtothecarrierandrecordedontheDeliveryNotebeforesigningit.A2B ACCORRONI

severedamage.

createdangeroussituations.Afterreceivingtheunit,immediatelycheckitsintegrity.Theunitleftthefactoryinperfectcondition;

E.G. tobeinformed,within8days,oftheextentofthedamage.Thecustomershouldprepareawrittenstatementofany



6.2 LIFTINGANDHANDLING

6.2.1 INDOORUNIT

Thehandlingmustbeperformedbyqualifiedpersonnel,properly

equippedandwithappropriateequipmentstotheweightofthe

unit,incompliancewithsafetyregulations.



6.2.2 OUTDOORUNIT

Whenunloadingandinstallingtheunit,itishighlyrecommendedto

avoidanysuddenmoveinordertoprotecttheinnercomponents.

Unitscanbeliftedbymeansofaforkliftor,inalternative,ofbelts,

beingsurenottodamagethelateralpanelsandthecover.Itis

importanttokeeptheunithorizontalduringtheseoperations.



6.3 LOCATIONANDMINIMUMTECHNICALCLEARANCES

6.3.1 INDOORUNIT



‐Placetheunitonthewall.

‐Drillholesinthemarkedpositionsandinserttheplugs.

‐Hooktheunit.

Models.L1

(mm)

L2

(mm)

H1

(mm)

H2

(mm)

3003001500300

6.3.2 OUTDOORUNIT

partiallycovertheunit)hastobeavoidedinordertopreventairrecirculation.Itisadvisabletocreateaproperbasement,witha

sizesimilartounitfoot‐print.Unitvibrationlevelisverylow:itisadvisablehowever,tofitarigidrubberbandbetweenbasement

andunitbase‐frame.Itisalsopossibletoinstallanti‐vibrationsupports(springsorrubbers)tokeepvibrationsataverylowlevel.

Absolutecarehastobetakentoensureadequateairvolumetothecondenser.Re‐circulationofdischargeairhastobeavoided;

failuretoobservethispointwillresultinpoorperformanceoractivationofsafetycontrols.Forthesereasonsitisnecessaryto

observethefollowingclearances:



MOD.AB*CDE**

1500500400400500

*Min.distancerecommendedforinstallationandmaintenance.

**Min.distancerecommendedforassistanceandmaintenance.



Bothunitsmustbepositionedonaleveledsurface,theholdersusedforinstallationmustbeabletosupportits

weight.

6.4 HYDRAULICCONNECTIONS

6.4.1 CONNECTIONDIAGRAMS

Thehydraulicconnectionshavetobeinstalledinaccordancewithnationalandlocalregulations;pipescanbemadeupofsteel,

galvanizedsteelorPVC.Pipeshavetobedesigneddependingonthenominalwaterflowandonthehydraulicpressuredropsof

‐Usetheprovidedtemplatetomarkthemountingholes.

PACK DUE 7‐9‐12‐16

TheallPACK.DUEunitsaredesignedforoutdoorinstallation:anycoverovertheunitandlocationneartrees(evenifthey

PACK DUE 7

PACK DUE 16

PACK DUE 9

PACK DUE 12



thesystem.Allpipeshavetobeinsulatedwithclosed‐cellmaterialofadequatethickness.Chillershavetobeconnectedtopiping

bymeansofflexiblejoints.Pipingshouldinclude:

•Holethermometerstomonitorthesystem’stemperature.

•Manualshut‐offvalvestoseparatethechillerfromthehydrauliccircuit.

•Y‐shapedmetallicfilter(tobemountedontheinletpipe)withameshnotlargerthan1mm.

•Charginggroupanddischargevalve,wherenecessary.

•Anti‐vibrationjoints.

12 10

Connections carriedout bymanufacturer Connections tobe carriedout bytheinstaller

Systemoutlet

Systeminlet

1. Manometer

2. Anti‐vibrationjoint(recommendedfor

indoorunitjoints)

3. Stopvalve

4. Airventvalve

5. Flowswitch

6. Thermometer

7. Filter

8. Safetyvalve

9. Expansionvessel

9*Additionaexpansionvessel

10. Dischargevalve

11. Loadvalve/reintegrate

12. Temperaturesensor

13. Circulator

14. Heater



Unitwaterinletpipehavetobeincorrespondencewiththeconnectionlabelled:”WATERINLET”,otherwisethe

evaporatormayfreeze.

ItiscompulsorytoinstallontheWATERINLETconnectionametallicfilterwithameshnotlargerthan1mm.

Shouldthewaterflowswitchbealteredorshouldthefilternotbeinstalled,thewarrantywillnolongerbevalid.

Thefilterhavetobekeptclean,somakesureitiscleanaftertheunithasbeeninstalled,andthencheckit

periodically.



WARNINGAllunitsarestandardsuppliedwiththewaterflowswitch(factoryinstalled).ThewaterflowswitchHASTOBE

INSTALLEDonthewateroutletconnection(labelledWATEROUTLET).Shouldthewaterflowswitchbealtered,

removed,orshouldthewaterfilternotbeinstalledontheunit,thewarrantywillbeinvalidated.Pleasereferto

thewiringdiagramforthewaterflowswitchelectricconnections.

6.4.2 PLANTLAYOUTDESIGN



1. Indoorunit

2. DCinvertermoto‐condensing

(outdoorunit)

3. Sanitaryaccumulator

4. Plantinertialaccumulator

5. Instantaneousprepareracs

6. Solarcollector

7. Radiantplant

8. Plantswitchingover/sanitary

9. Sanitarywaterinlet

10. Sanitarywateroutlet

11. Heaterforintegration

12. Solarcentral(optional)

MSI



6.4.3 CONNECTIONSPOSITIONS

6.4.3.1 INDOOR UNIT

A.Sytemoutletpipe(1”M)

B.Systeminletpipe(1”M)

C.Gasline(seeParagraph13.2)

D.Liquidline(seeParagraph13.2)

E.Powersupply

F.Condensatedrain(jointØ16mm)



6.4.3.2 OUTDOOR UNIT



A. Powersupplycover(accesstotheterminal

B. Gasconnectionscover

C. Gasconnections

ModelsLiquidlineGasline

1/4SAE1/2SAE

3/8SAE5/8SAE



Units12and16



A. Gasconnectionscover

(removethefrontsidecovertoaccedetothe

terminal)

ModelsLiquidlineGasline

3/8SAE5/8SAE



6.4.4 DRAINAGECONNECTION

6.4.4.1 INDOORUNIT

Theindoorunitsaredesignedsothatthebaseinwhichthereareconnectionstothesameactofthewatertray.

•Connectapipetothepredisposedjointontheunit,cfr.Connectionsposition.

•Secureitusingahoseclamp.

•Routethepipetoasuitabledrainingplace.

•Maintainasufficientslopetoensurethesmoothflowofthecondensatewater.

6.4.4.2 OUTDOORUNIT

installedontothelowerpartoftheunitinthespecialhousingenablingtheconnectionofadrainagepipe.

B

A

C

A

PACK DUE7

block)

PACK DUE9

PACK DUE12

B. Accesstopowersupplyandsignalcables

PACK DUE16

Units7and9

AllPACK DUEunitshavebeendesignedtousetheirownbaseasadrainpan;aplasticpipefittingisstandardprovidedtobe



•Locatetheholeatthebaseoftheunitbetweenthefinned

coilandfan,A.

•Connecttotheholetheprovidedfittingjoint,B.

•Connectahosetothenozzleofthesuppliedfittingjoint.

•Directthehoseintothedisposalplaceforcondensatewater.

•Maintainasufficientslopetoensurethesmoothflowof

condensatewater.



6.5 REFRIGERANTDIAGRAM

EEV

IN OUT

4WV

LP HP

FL FL

NRV

CLS



CCOMPRESSOR

CLSCOMPRESSORLIQUIDSEPARATOR(onlyforthemodelsi‐SHWAK/WP

05,07e10)

OSOILSEPARATOR(onlyforthemodelsi‐SHWAK/WP10e15)

STCOMPRESSORINLETTEMPERATURE

DTCOMPRESSOROUTLETTEMPERATURE

HPHIGHPRESSURETRANSDUCER

PrHIGHPRESSUREFLOWSWITCH

LPLOWPRESSURETRANSDUCER

LSLIQUIDSEPARATOR(onlyformodelsi‐SHWAK/WP10e15)

4WVVALVEFOINVERTINGCYCLE

LRLIQUIDRECEIVER

EEVELECTRONICEXPANSIONVALVE

NRVNORETURNVALVE(onlyforthemodelsi‐SHWAK/WP10e15)

FLFILTER

MAXIALFAN

SEOUTDOORAIRTEMPERATURE

PCIRCULATORONBOARDUNIT

INWATERINLETTEMPERATURE

OUTWATEROUTLETTEMPERATURE



WARNING:Theunitshouldbeinstalledsothatadequateclearanceisavailableformaintenanceandrepairation.The

warrantydoesnotcovercostsrelatedtoplatformsorhandlingequipmentnecessaryforanymaintenance.

AllmaintenanceandtestingoperationsshouldbecarriedoutonlybyQUALIFIEDPERSONNEL.

Beforeanyoperationontheunit,makesurethepowersupplyisdisconnected.



WARNING:Insidetheunit,therearesomemovingparts.Beespeciallycarefulwhenworkingnearthem,evenifthe

unitisoff.

Thetemperaturesofheadsandexhaustpipingofthecompressorareusuallyhigh.Thereforebecarefulwhenworking

nearcondensingcoils.

Thealuminumfinsareverysharpandcancauseseriousinjuries.

Afterthemaintenanceoperations,closethepanelstightlywiththefasteningscrews.

6.6 ELECTRICALCONNECTIONS

Checkoutthatthepowersupplymeetstheunit’selectricnominaldata(tension,phases,frequency)reportedonthelabelinthe

unit’sfrontpanel.Powerconnectionshavetobemadeinaccordancetothewiringdiagramenclosedwiththeunitandin

accordancetothenationalandinternationalnormsinforce.Powercablesandlinefuseshavetobesizedaccordingtothe

specificationslistedinthewiringdiagramenclosedwiththeunit.



WARNING:Thesupplyvoltage’sfluctuationscannotexceed±10%ofthenominalvalue.Shouldthesetolerances

notberespected,pleasecontactourtechnicaldepartment.



WARNING:Thepowersupplyhavetorespectthelistedlimits:failingthis,warrantywillterminateimmediately.

Beforeanyoperationontheunit,besurethatthepowersupplyisdisconnected.

WARNING:Thewaterflowswitch(thecomponentnumber5inthepreviousimageandfactoryinstalled)have

ALWAYStobeconnectedfollowingtheindicationslistedinthewiringdiagram.Neverbridgethewaterflow

switchconnectionsintheterminalboard.Shouldthewaterflowswitchconnectionsalteredornotproperlymade,

theguaranteewillbeinvalidated.



WARNING:Theindoorunitcannotbeinstalledinareaswithstrongvibrations,corrosivegases,andexcessof

dirtinessorhighhumiditylevels.Complywiththeminimumtechnicalinstallation.



6.6.1 TERMINALBLOCKCONNECTIONS

Electricalwiringhavetobedoneonlybyqualifiedpersonnel.

6.6.1.1 WIRINGBETWEENINDOORANDOUTDOORUNITS

Theindoorunitmustbeconnectedtotheoutdoorunitasshowninthebelowfigure.



U-N

230V-1Ph-N-50Hz

PQE UN

Gnd

R+R-

OUTDOORUNIT INDOORUNIT



GF:Generaldifferentialswitch(not

included)



A:RS485connection



B:Powersupplyconnection

6.6.1.2 INDOORUNIT

TERMINALSOFTHEELECTRICBOX



Single‐phasepowersupplyterminals(ground–

phase‐neutral)max.4mmfortheunitsi‐U‐NFortheconnection,pleaseuseacablewithamaximumsectionof4/6mm.

Followtheregulationsforthesectionofthecable.

theoutdoorunit

P(‐)‐Q(+)‐

E(Gnd)

Fortheconnection,pleaseuseacablewithaminimumsectionof1mmfor

alengthnotmorethan10m.Forlengthuntil100macablewithsectiono

1.5mmmustbeused.

TERMINALSLOCATEDONTHEBOARDA1

A2Solarexpansionboard(optional)EXPANSIONFortheconnection,pleaseusethecablesuppliedwiththesolar

expansionkitfitting.

A3Output230Vac1AMAXforresistanceR2of

contactorcontrolKM2.UD0–NFortheconnection,pleaseuseacablewithaminimumsectionof1,5mm.

YV13wayvalveforsanitaryhotwaterUD1–NFortheconnection,pleaseuseacablewithaminimumsectionof1,5mm.

TH1AmbientthermostatID3–N

Fortheconnection,pleaseuseacablewithaminimumsectionof1mm

foralengthnotmorethan10m.

Forlengthmorethan10macablewithsectionof1,5mmmustbeused.

BT3BoilersanitarywatersensorIA2–G

Forconnection,acablewithminimumsectionof0,5mmmustbeused

foralengthnotmorethan50m.Forlenghuntil100m,acablewith

sectionof1mmmustbeused.

BT4OutdoorairtemperaturesensorIA3–G

Forconnection,acablewithminimumsectionof0,5mmmustbeused

foralengthnotmorethan50m.Forlenghuntil100m,acablewith

sectionof1mmmustbeused.

PROTECTIONPARTS

QFGeneraldifferentialswitch(notincluded)Forthedifferentialswitchcapcity,pleaserespecttheregulationsandthe

powersupplyofunit.

PACK DUE7‐9and6mmfortheunitsi‐

TerminalsRS485tobeconnectedwiththoseof

PACK DUE12and16.



6.6.1.3 OUTDOORUNIT

Theelectricalconnectionshavetoberealizedbyqualifiedpersonnel.

L2N

R+

R-

NO NC R+

R-

GND

GND CO

FUSE



GND: groundingwire;

N1: powersupplyneutralwire;

L1: powersupplylivewire;

L2: Ifitexists,connectthelivewirecomingfromthesystem

L3:Ifitexists,connectthelivecablecomingfromthesystem

NO: genericalarmoutput(closedwhenthealarmisnotactivated);

CO: genericalarmoutputcommonterminal;

NC:NOterminalgenericalarmoutput(closedwhenthealarmisactivated);

R+: modbus+signalforconnectionwithindoorunit;

R‐: modbus‐signalforconnectionwithindoorunit;



WARNING:Thegroundingofthesignalcablemustnotbeconnectedandmustbeprotectedfromaccidental

contactwiththesheet:cutitorisolateitwithtape.

7STARTUP

Beforestart‐up

•Ensuretheavailabilityofdiagramsandmanualsoftheinstalledappliance.

•Checktheavailabilityofdiagramselectricalandhydraulicdiagramsoftheplantwheretheapplianceisconnected.

•Checkiftheanti‐vibrationcouplingsexistsonhydraulicpipes.

•Checkiftheshut‐offvalvesofthehydrauliccircuitsareopened.

•Checkthatthehydrauliccircuithasbeenloadedintorequiredpressureandventedfromair.

•Checkthatallthehydraulicconnectionsarecarriedoutcorrectlyandthatallinformationonthelabelsarerespected.

•Ensurethatarrangementshavebeenprovidedtodraincondensate.

•Ensourethatpowercablesandallterminalsanrewellconnected.

•Checkthattheelectricalconnectionshavebeenmadeaccordingtoapplicableregulationsincludinggrounding.

•Thevoltagemustbespecifiedonthenameplateoftheunit.

•Ensurethatthevoltageiswithinthetolerancelimitsof(±10%).

•Checkthattheheatingelementsofthecompressorarepoweredproperly.

•Ensurethattherearenogasleaks.

•Beforethestartup,checkthatallshuttingpanelsarepositionedandfixedwithproperscrews.

Thecrankcaseheatershavetobepoweredatleast12hoursbeforestartupbyswitchingoffthemainswitch(the

heatersareautomaticallypoweredwhenthemainswitchisswitchedoff).Thecrankcaseheatersareworking

properlyif,aftersomeminutes,thetemperatureofcrankcase’scompressorisabout10°C÷15°Chigherthan

ambienttemperature.

Neverswitchofftheunit(foratemporarystop)byswitchingoffthemainswitch:thiscomponentshouldbeusedto

disconnecttheunitfromthepowersupplyonlyforlengthystoppages(e.g.seasonalstoppages).Besides,failingthe

powersupply,thecrankcase’sresistancesarenotsuppliedthusresultinginapossiblebreakdownofthe

compressorsoncetheunitisswitchedon.



WARNING

Donotmodifytheinternalwiringoftheunitotherwisethewarrantywillterminateimmediately.

WARNING:Asfortheheatpumpmodels,thesummer/winteroperatingmodehavetobeselectedatthebeginning

oftherelatedseason.Frequentchangesofthisseasonaloperatingmodehavetobeavoidedinordertoprevent

severedamagestocompressors.

ForthemodelsPACK DUE7andPACK DUE9,theterminalblockislocatedundertheplasticcoverontherightsideofthe

theterminalblockhastoberealizedinaccordancetothebelownotes.

outdoorunit(forthePACK DUE 12andPACK DUE16models,itisnecessarytoremovetheprotectivecarter).Thewiringto



8INDOORUNITCONTROLPANEL

Thecontrolpaneliscomposedofadisplayandbuttonsforprogramming.

ESC

PRG

MODE

ON/OFF

4 5 6 7 8



8.1 LED

1Heatpumpinheatingmode

2Heatpumpincoolingmode

3Circulationpumpinsanitarymode

1+3Circulationpumpincoolingmodewithsanitaryboilerpriority

2+3Heatpumpinheatingmodewithsanitaryboilerpriority

4Heatpumpcompressorison

5Hydraulicpumpoftheheatpumpsystem

6Electricheaterofheatingsysteminheat(winter)mode

7Sanitaryboilerelectricheater

8Hydraulicpumpofsolarsystem

8.2 FUNCTIONSOFBUTTONS

Esc

Alarmreset

Menuexit

Usermenuscrolling

MODE

ON/OFF

Changeinheatpumpmode

Topoweronandofftheheatpump

PrgToselectparameters

Tostoreparameters

▲

Increasethesetpoint

Toincreasethevaluetobechanged

Selecttopiteminsidethemenu

▼

Decreasethesetpoint

Decreasethevaluetobechanged

Decreasethebottomiteminsidethemenu

8.2.1 LEVELSOFACCESS

Ithas2levelsofconsultationandprogramming.

1WithoutpasswordfortheuserTodisplaythevaluesofparameters,changesetpoint,dateandhour.

2WithpasswordforMaintenanceandManufacturerTodisplayandprogramminotheparametersoftheappliance.



Pleasecontactourservicecentreforfurtherdetails.



8.3 DESCRIPTIONOFTHEMAINDISPLAY

DISPLAYVISUALISATIONNOTE

MAIN

DISPLAYDateandtime

Display1Returntemperaturefromtheheatingorcoolingsystem

Setpointofheatingorcoolingsystem



Display2

Temperatureofthesensorofthesanitarysanitary

termoaccumulatore

Set‐pointofsanitarysanitarytermoaccumulatore



Display3Outdoorairtemperature

Display4Temperatureofthesolarpanelcollector

Temperatureofthesanitarythermo‐accumulator

Screenshotavailableonlyinthepresenceof

solarpanel

Display5PoweroutputofthesolarsystemScreenshotavailableonlyinthepresenceof

solarpanel

8.3.1 NAVIGATIONBETWEENDISPLAYS

Onthecontrolpanel

1PresstheESCbuttontobrowsetheuser’smenu.

8.4 OPERATINGMODES

MODEDESCRIPTION

OFFTheunitstayinstand‐by

OnlycoolingProductionofchilledwaterforcooling

CoolingandsannitarywaterProductionofchilewaterforcoolingandandsanitaryhotwater

OnlyheatingProductionofhotwaterforheating

HeatingandsanitarywaterProductionofhotwaterforheatingandsanitaryhotwater

OnlysanitarywaterProductionofsanitaryhotwater

8.4.1 OPERATIONMODESETTING

Onthecontrolpanel

1Pressthe“ModeOn‐Off”buttontoselecttheoperatingmode.

2Willbeautomaticallymemorized.

8.5 PROCEDURE

8.5.1 SET‐POINTSELECTION

Onthecontrolpanel

1Pressthearrowstothesetpointvalue.

2Willbeautomaticallymemorized.



Theoperationisthesamealsoforthemodificationofthesanitaryset‐point.

8.6 DESCRPTIONOFFUNCTIONS

FunctionDESCRIPTION

TimersettingSettingofthetimeronandofffortheheatpumpaccordingtotimeslots.

Set‐pointsettingSettingtheset‐pointofthesystemandsanitaryofheatpump.

PaswordsettingSettingthepaswordtoaccessintothemenumainyenerofmanufacturer.

ProgrammingSettingtheparametersdisplayedonlybytheuser(nopassword)clock(hoursandminutes)appearsonthemainpage.

8.6.1 ACCESSTOTHEFUNCTIONS

Onthecontrolboard

1Pressthe“PRG”buttontoenter.

2Pressthearrowsbuttonstoselectthefunction.

3Pressthe“PRG”buttontoaccede.



8.7 ALARMS

AlarmtypeAlarmdescriptionCause

WaterflowsalarmLackofwatercirculationonthehydraulicsideofthe

heating/cooling/sanitaryboilersystem.

Hydraulicpumpisoff,burnt,ecc.. thepressure

ofthewatersideiszerobar.

Thefaucetforinterceptionofthesystemare

closed.

Outdoorunitlink

alarm

Aloseorbadserialconnectionbetweenindoorand

outdoormoto‐condensingunit.Electricalconnectionsreversedorinterrupted

SensoralarmBaddetectionofthetemperaturesensor.Cableoftemperaturesensorisinterrupted.

Temperaturesensorerror.

WaterantifreezeTemperatureofthewaterofcooling/heating/sanitary

boilersystemisbelowthesetpoint.

Hydraulicpumpisoff,burnt,etc...

Pressureonthewatersideis0bar.Faucetsfor

theinterceptionofthesystemareclosed

8.8 ADJUSTMENTOFSANITARYWATERVALVE

Toactivatethesanitaryhotwateryoumust:

•connecttotheterminalsIA2–Gasensorwhichshouldbeinstalledinsidethetank,

•connectthe3‐wayswitch‐overvalvetotheterminalsUD1‐N(withspringreturn)

Ifthesanitaryhotwatertemperatureislowerthantheset‐pointofsanitarywater(setto48°Cbydefault)theunitactivatesthe3‐

wayswitch‐overvalvetodeviatetheflowofwatertowardsthewatertankortoaheatexchanger.Iftheset‐pointofsanitary

waterisreached,thevalvereturnsinrestperiod.

ContactUD1N‐(3‐wayvalve):

•close:valveenergizedandwaterflowdeviatedtothewatertank,

•open:valvede‐energizedandwaterflowdeviatedtotheuser.

Commutatingfromwintermodeoperationtosanitarymodeoperation,thecompressorremainsonandworksundertheset

frequency.Commutatingfromsummermodeoperation,thecompressorturnsoffforsafetyperiod.

NOTES:

Usingthekeyboardontheunittoturnoffitdoesnotthesanitaryoperation

Thedisplayboardontheunitshows:

•Insanitarymode:thedisplayshowsthetemperaturemeasuredbythesensorlocatedinthecontainer,

•Inheatingorcoolingmode:thediplayshowstheoutletwatertemperaturesensor.

Thedefrostduringheatingoperationisalwaysperformedontheuserside,neveronthesanitarywatertank.

9MICROPROCESSORUSERINTERFACE



Itisusedtoresetthemanualresettingalarms.

Duringtheparameters’setting,thisbuttoncanbeusedtorevertBACKtothepreviouslevel.

Itallowsyoutoviewthesettingmenuparameters.

UPbutton:Inthesettingmode,thisbuttonallowsyoutomoveuptoahighermenuortoincreasethevalueofa

parameterwhenyouareintheeditmode.

DOWNbutton:Inthesettingmode,thisbuttonallowsyoutoshifttoalowermenuortodecreasethevalueofa

parameterwhenyouareintheeditmode.



9.1 DISPLAY

Innormalviewdisplaysthealarmcodeifatleastanalarmisactive.Incaseofmultiplealarmsactivation,itwilldisplaythefirst

alarm,whilethesecondappearswhenthefirstisreset.

9.2 LED

CompressorLED

•ONifthecompressorisrunning

•OFFifthecompressorisoff

•FLASHINGiftimingsareinprogresswaitingforcompressor’sstartup

SanitarywaterLED•ONifsanitarywatervalveisinopenposition

•OFFifthesanitarywatervalveisinclosedposition

DefrostingLED

•ONindefrostoperatingmode

•OFFifdefrostingmodeisdisabledorcompleted

•FLASHINGifdefrostingcycleinterval’stimeisinprogress

AntfreezeresistanceLED•TheLEDisONiftheantifreezeresistanceisactive.

WaterpumpLED•TheLEDisONifthewaterpumpisrunning.

AlarmLED•TheLEDisONifanalarmisactivated.

HeatLED•TheLEDisONiftheunitisintheheatingmodeoperation.

CoolLED•LEDisONiftheunitisinthecoolingmodeoperation.

9.3 ANTIFREEZEPROTECTIONRESISTANCES(iftheKASaccessoryispresent)

Theheatingcableplacedonthebasementoftheapplianceisequippedwithabuilt‐inthermostatwhichactivatesthecableevenif

theunitisoff(butenergized)whentheoutsideairtemperaturedecreasesbelow5°C.

9.4 ALARMS

9.4.1 Sensoralarms

Thealarmwillbeactivatedinthecaseofashortoropencircuitofanyconnectedandenabledsensor.

Thealarmwillbeactivatedalsowhenthetemperaturebecomeshigherthanthesensors’upperlimit(100°C)orlessthanthe

lowerlimit(‐50°C).

9.4.2 Timeoutinverter

Supposingthecontrollerdoesnotcommunicatewiththedriverofthecompressor,thetimeoutalarmwillbeactivatedinorderto

preventasystem’scontrolloss.

9.4.3 Highpressure

Iftheonboardpressuretransductordetectsapressurehigherthan40bar,thealarmwillbeactivated.

Inthiscasethecompressorwillstopimmediately.

Thealarmwillresetwhenthepressuredecreasesunder36bar.

9.4.4 Highpressureflowswitch(inserieswiththecompressoroutletprobe)

Ifthepressureswitchonthemachinedetectsapressurehigherthan42barthealarmwillbeactive.

Inthiscase,thecompressorwillbeimmediatelystopped.Thealarmresetswhenthepressuredropsbelow32bar.

9.4.5 Lowpressure

Iftheonboardpressuretransductordetectsapressurelowerthan2bars,thealarmwillbeactivated.

Inthiscasethecompressorwillstopimmediately.

Thealarmwillresetwhenthepressuregoesover6bar.

9.5 POWERFAILURE

Afterpowersupplyreset:

1.Thesystemcomesbacktothepreviousstatebeforethepowerfailure.

2.Ifthesystemisdefrosting,thismodewillbecancelledafterpowersupplyreset.

3.Alltherunningtimingswillbeclearedandresetagain.



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