MAXA N-i-HP 0125 Use and care manual

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INVERTERAIR/WATERHEATPUMPCHILLERSWITHAXIALFANS
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USER’SANDINSTALLER’SMANUALS
Pre‐series
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Models
N‐i‐HP0125
N‐i‐HP0235
N‐i‐HP0250
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Thismanualhasbeencreatedforinformativepurpose.Thecompanydeclinesanyresponsibilityfortheresultsofanyprojectingoranyinstallationbasedontheexplanationsand/oron
thetechnicalspecificationsprovidedinthismanual.Itisbesidesforbiddenthereproductionunderanyformofthetextsandofthefigurescontainedinthismanual.
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N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
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03B07‐2014D.P.,A.MG.M.
0307‐2014D.P.,A.MG.M.
0205‐2014D.P.,A.MG.M.
0105‐2014D.P.,A.MG.M.
0011‐2013D.P.,A.M.G.M.
RevDateAuthorSupervisor
Catalogo/Catalogue/Katalog/Catalogue
MUI01110E6820‐3B
Serie/Series/Serie/Serie/Série
USER’SANDINSTALLER’SMANUALFORINVERTERAIR/WATER
INDUSTRIALSHEATPUMPSWITHAXIALFANS
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Possiblewastedelectricalorelectronicdevices/productsshouldnotbelocatedtogetherwithnormaldomesticwaste,butdisposedaccordingtothe
currentWEEElawincompliancewiththeEuropeanDirective2002/96/ECandfollowingmodifications2003/108/EC.Pleaseinformyourselfatyour
localAdministrationoratyourresellerincasetheproductwillbereplacedwithasimilarone.

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
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INDEX
1AIMANDCONTENTSOFTHISMANUAL...............................................................................................................................4
1.1HOWTOKEEPTHISMANUAL.................................................................................................................................................4
1.2GRAPHICSYMBOLS................................................................................................................................................................4
2SAFETYLAWS......................................................................................................................................................................4
3PERMITTEDUSES................................................................................................................................................................4
4GENERALSAFETYGUIDELINES.............................................................................................................................................5
4.1WORKERS’HEALTHANDSAFETY............................................................................................................................................5
4.2PERSONALSAFETYEQUIPMENTS...........................................................................................................................................5
4.3SAFETYSYMBOLS...................................................................................................................................................................5
4.4REFRIGERANTSAFETYDATASHEET........................................................................................................................................6
5TECHNICALCHARACTERISTICS.............................................................................................................................................7
5.1FRAME...................................................................................................................................................................................7
5.2REFRIGERANTCIRCUIT...........................................................................................................................................................7
5.3COMPRESSORS.......................................................................................................................................................................7
5.4AIR‐SIDEEXCHANGERS...........................................................................................................................................................7
5.5FANMOTOR...........................................................................................................................................................................7
5.6USER‐SIDEHEATEXCHANGERS..............................................................................................................................................7
5.7ELECTRICALCONTROLPANELBOARD....................................................................................................................................7
5.8CONTROLSYSTEM..................................................................................................................................................................7
5.9MONITORINGANDPROTECTIONDEVICES.............................................................................................................................8
5.10HYDRAULICCIRCUIT...............................................................................................................................................................8
5.11FANSPEEDCONTROL.............................................................................................................................................................8
5.12ENHANCEDVAPOURINJECTION(EVI)TECNOLOGY...............................................................................................................8
6AVAILABLEVERSIONS,SIZESANDACCESSORIES..................................................................................................................9
6.1OPTIONALACCESSORIES......................................................................................................................................................10
7INSTALLATION..................................................................................................................................................................11
7.1GENERALITY.........................................................................................................................................................................11
7.2LIFTINGANDHANDLING......................................................................................................................................................11
7.3LOCATIONANDMINIMUMTECHNICALCLEARANCES..........................................................................................................11
7.4HYDRAULICCONNECTIONS..................................................................................................................................................12
7.4.1Drainageconnection....................................................................................................................................................12
7.4.2Servicevalve.................................................................................................................................................................12
7.4.3Plantdrainagesystem..................................................................................................................................................12
7.4.4Hydrauliccircuit...........................................................................................................................................................13
7.5REFRIGERANTDIAGRAMS....................................................................................................................................................13
7.5.1RefrigerantdiagramofthemodelN‐i‐HP0125...........................................................................................................13
7.5.2RefrigerantdiagramofthemodelN‐i‐HP0235‐0250..................................................................................................14
7.5.3RefrigerantdiagramofthemodelN‐i‐HP‐LT0125......................................................................................................14
7.5.4RefrigerantdiagramofthemodelN‐i‐HP‐LT0235‐0250.............................................................................................15
7.6ELECTRICALCONNECTIONS..................................................................................................................................................15
7.6.1Wiringterminalblock...................................................................................................................................................16
8STARTUP..........................................................................................................................................................................18
9POWER‐ONOFTHEUNIT..................................................................................................................................................19
10SHUTDOWNSFORLONGPERIODS.................................................................................................................................19
11MAINTENANCEANDPERIODICALCONTROLS.................................................................................................................19
11.1ENVIRONMENTALPROTECTION...........................................................................................................................................19
12WHENTHEUNITGOESOUTOFSERVICE........................................................................................................................20
13TECHNICALDATA(PRELIMINARIES)...............................................................................................................................20
13.1STANDARDVERSION............................................................................................................................................................20

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
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13.2LTVERSION...........................................................................................................................................................................21
14ELECTRICDATAOFTHEUNITANDAUXILIARIES..............................................................................................................22
15HEATPUMPSAVAILABLEHEADPRESSUREWITHINTEGRATEDCIRCULATOR...................................................................22
15.1MODELN‐I‐HP0125.............................................................................................................................................................22
15.2MODELN‐I‐HP0235.............................................................................................................................................................22
15.3MODELN‐I‐HP0250.............................................................................................................................................................23
16WATERPUMPCURVES..................................................................................................................................................23
16.1MODELSN‐I‐HP0125–0235................................................................................................................................................23
16.2MODELN‐I‐HP0250.............................................................................................................................................................24
17LOADLOSSESCURVESOFTHEHYDRONICCIRCUIT.........................................................................................................24
18CHARACTERISTICCURVEOFTHECONTROLVALVEFORUNITINPARALLEL......................................................................25
19ACCESSORIESTOREDUCETHENOISELEVEL...................................................................................................................25
19.1SL..........................................................................................................................................................................................25
19.2SSL........................................................................................................................................................................................25
20OPERATINGLIMITS........................................................................................................................................................26
20.1EVAPORATORWATERFLOWRATE.......................................................................................................................................26
20.2COLDWATERTEMPERATURE(SUMMEROPERATION).........................................................................................................26
20.3HOTWATERTEMPERATURE(WINTEROPERATION).............................................................................................................26
20.4AMBIENTAIRTEMPERATURE...............................................................................................................................................26
21CORRECTIONFACTORSFORUSEOFGLYCOL..................................................................................................................27
22DIMENSIONS.................................................................................................................................................................28
22.1MODELSN‐I‐HWAK/WPV2/V2+06......................................................................................................................................28
BYINSERTINGTHEOPTIONALELEMENTAXITOPTHEMAXIMUMHEIGHTCHANGESFROM1741MMTO1906MM...................28
23INTERNALVIEWS...........................................................................................................................................................29
24WIRINGDIAGRAMS.......................................................................................................................................................32
24.1MODELN‐I‐HP0125(POWERSUPPLY)......................................................................................................................................32
24.2MODELN‐I‐HP0125(CONTROLSIGNALS1)...............................................................................................................................33
24.3MODELN‐I‐HP0125(CONTROLSIGNALS2)...............................................................................................................................34
24.4MODELN‐I‐HP0125(GIOPTIONALMODULECONTROLSIGNALS)...................................................................................................35
24.5MODELN‐I‐HP‐LT0125(POWERSUPPLY).................................................................................................................................36
24.6MODELN‐I‐HP‐LT0125(CONTROLSIGNALS1)...........................................................................................................................37
24.7MODELN‐I‐HP‐LT0125(CONTROLSIGNALS2)...........................................................................................................................38
24.8MODELN‐I‐HP‐LT0125(INJECTIONCONTROLSIGNALS)...............................................................................................................39
24.9MODELN‐I‐HP‐LT0125(GIMODULECONTROLSIGNALS).............................................................................................................40
24.10MODELN‐I‐HP0235‐0250(POWERSUPPLY).............................................................................................................................41
24.11MODELN‐I‐HP0235‐0250(CONTROLSIGNALS1)......................................................................................................................42
24.12MODELN‐I‐HP0235‐0250(CONTROLSIGNALS2)......................................................................................................................43
24.13MODELN‐I‐HP0235‐0250(GIOPTIONALMODULECONTROLSIGNALS)..........................................................................................44
24.14MODELN‐I‐HP‐LT0235‐0250(POWERSUPPLY)........................................................................................................................45
24.15MODELN‐I‐HP‐LT0235‐0250(CONTROLSIGNALS1).................................................................................................................46
24.16MODELN‐I‐HP‐LT0235‐0250(CONTROLSIGNALS2).................................................................................................................47
24.17MODELN‐I‐HP‐LT0235‐0250(INJECTIONCONTROLSIGNALS)......................................................................................................48
24.18MODELN‐I‐HP‐LT0235‐0250(GIMODULECONTROLSIGNALS)...................................................................................................49
25HI‐TREMOTETOUCH‐SCREENCONTROLPANEL(OPTIONAACCESSORY).........................................................................50
26CRHREMOTEKEYBOARD(OPTIONALACCESSORY).........................................................................................................50
27HYDRAULICDIAGRAMTYPE...........................................................................................................................................51
28HANDBOOKFORCONFIGURATIONSOFINSTALLATION..................................................................................................51

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
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TheN‐i‐HPmanualcontainsallthenecessaryinformationforthebetteruseoftheapplianceundersafetyconditionsforthe
operatorthusmeetingtherequirementslistedinthe2006/42/CEEquipmentDirectiveandfollowingamendments.
1AIMANDCONTENTSOFTHISMANUAL
Thismanualprovidesthebasicinformationasfortheselection,installation,operationandmaintenanceoftheN‐i‐HPunits.Itis
addressedtotheusersoftheapplianceanditenablesthemtousetheunitefficiently,evenwithoutanypreviousspecific
knowledgeofit.
Thismanualdescribesthecharacteristicsoftheapplianceatthetimeofitsmarketpenetration;therefore,itmaynotcapturelater
technologicalimprovementsintroducedbyADVANTIXSPAaspartofitsconstantendeavourtoenhancetheperformance,
ergonomics,safetyandfunctionalityofitsproducts.
ADVANTIX,therefore,isnotconstrainedtoupdatethemanualsforpreviousversionsofmachines.
It’srecommendedthat,theusermustfollowtheinstructionscontainedinthisbooklet,especiallythoseconcerningthesafetyand
routinemaintenance.
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.
ADVANTIXSPAreservestherighttomodifyitsproductsandrelatedmanualswithoutnecessarilyupdatingpreviousversionsofthe
referencematerial.Itdeclinesalsoanyresponsibilityforpossibleinaccuraciesinthemanualifduetoprintingortranscription
errors.
Thecustomershallstoreanyupdatedcopyofthemanualorpartsofitdeliveredbythemanufacturerasanattachmenttothis
manual.
ADVANTIXSPAisavailabletogiveanydetailedinformationaboutthismanualandtogiveinformationregardingtheuse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.
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Indicatesprohibitedoperations.
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Indicatesimportantinformationthattheoperatorhastofollowinordertoguaranteethecorrectoperationofthe
equipmentincompletesafety.
2SAFETYLAWS
Everyunithavebeendesignedinaccordancewiththefollowingdirectivesandharmonisedstandards:
•EUDirectives97/23/EC,2006/42/EC,2014/30/CE,2011/65/EU,2012/19/UE
•UNIEN378‐1,378‐2,EN12735‐1
•UNIENISO12100,EN60204‐1,UNIENISO13857
•CEIEN61000‐6‐3,IEC61000‐6‐2.
3PERMITTEDUSES
Thecompanyexcludesanycontractualandextracontractualliabilitiesfordamagescausedtopersons,animalsorobjects,by
incorrectinstallation,settingandmaintenance,improperuseoftheequipment,andthepartialorsuperficialreadingofthe
informationcontainedinthismanual.
Theseunitshavebeendesignedonlyforheatingand/orcoolingofwater.Anyotherusenotexpresslyauthorizedbythe
manufacturerisconsideredimproperandthereforenotallowed.
Thelocationoftheplant,thehydraulicandelectricalcircuitsmustbeestablishedbytheplantingdesignerandmusttakeinto
accountbothtechnicalrequirementsaswellasanyapplicablelocallawsandauthorizedspecifications.
Theexecutionofallworksmustbeperformedbyskilledandqualifiedpersonnel,competentintheexistingrulesindifferent
countries.

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
5
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4GENERALSAFETYGUIDELINES
BeforebeginningtooperateonN‐i‐HPunitseveryuserhastobeperfectlyknowledgeableaboutthefunctionsofthe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.
Chil
d
renorunassisteddisabledpersonsarenotallowedtousetheappliance.
Donottouchtheappliancewhenbarefoot orpartsofthebody arewetordamp.
Donotpull,removeortwisttheelectricalcablescomingoutfromtheunit,evenifitisdisconnectedfromthemain
powersupply.
Donotstepwithyourfeetontheappliance,sitdownand/orplaceanytypeofobject.
Donotsprayorpourwaterdirectlyontheunit.
Donotdisposeof,abandonorleavewithinreachofchildrenpackagingmaterials
(
cardboard,staples,plasticbags,
etc)astheymayrepresentahazard.
Anyroutineornot‐routinemaintenanceoperationshallbecarriedoutwhentheequipmenthasbeenshutdown,
disconnectedfromelectricpowersources.
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.
4.1 WORKERS’HEALTHANDSAFETY
TheEuropeanCommunityhasadoptedanumberofdirectivesonworkplace’shealthandsafety,including89/391/CEE,
89/686/CEE,89/655/CEE,86/188/CEEand77/576/CEEdirectives.Everyemployershallimplementsuchnormsandensurethat
workerstorespectthem.Itpointsoutthat:

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.
4.2 PERSONALSAFETYEQUIPMENTS
WhenoperatingandmaintainingtheN‐i‐HPunits,usethefollowingpersonalprotective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.
4.3 SAFETYSYMBOLS
Theunitfeaturesthefollowingsafetysigns,whichhastobecompliedwith:
Generalhazards

Electricshockhazard

Presenceofmovingorgans

Presenceofsurfacesthatmaycauseinjures
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N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
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4.4 REFRIGERANTSAFETYDATASHEET
Name:R410A(50%Difluoromethane(R32);50%Pentafluoroethane(R125).
RISKSINDICATIONS
Majorrisks:Asphyxia
Specificrisks:Therapidevaporationmaycausefreezing.
FIRSTAID
Generalinformations:Nevergiveanythingbymouthtoanunconsciousperson.
Inhalation:Movetofreshair.
Oxygenorartificialrespirationifnecessary.
Donotadminister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clothing.
FIREPREVENTION
ExtinguishingMedia:Whatever.
Specificrisks:Increaseinpressure.
Specificmethods: Usewaterspraytocoolcontainers
ACCIDENTALRELEASEACTIONS
Personalprecautions:Evacuatepersonneltosafeareas.
Provideadequateventilation.
Usepersonalprotectiveequipment.
Environmentalprecautions:Evaporate.
Cleaningmethod: Evaporate.
HANDLINGANDSTORAGE
Manipulation
Action/technicalprecautions: Providesufficientairexchangeand/orsuctioninworkplaces.
Recommendationsforsafeuse:Donotbreathevaporsoraerosol.
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:Itdoesnotignite.
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powdered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.
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N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
7
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5TECHNICALCHARACTERISTICS
TheN‐i‐HPwaterchillersandheatpumpsseriesaredesignedforapplicationsinresidentialandindustrialareas,theseunitsare
extremelyversatileandcanoperateinheatpumpmodewiththeabilityofhotwatergenerationatatemperatureof55°Cfor
environmentalheatingandsanitaryapplications.TheDCBrushlessInvertercompressortechnology,matchedwiththeelectronic
expansionvalve,thepumpandthevariablespeedbloweraregenerallyusedforoptimizingthepowerconsumptionandefficient
operationoftherefrigeratingcomponents.
5.1 FRAME
AllN‐i‐HPunitsaremadeupofhot‐galvanisedthicksheetmetal,paintedwithpolyurethanepowderenamelsat180°Ctoensure
thebestresistanceagainstatmosphericagents.Thefrontpanelishingedtotheliftsidetoallowaccesstotheinternal
componentsforinspectionandmaintenance.Thescrewsandtheinsertsaremadeupofgalvanizedsteel.
5.2 REFRIGERANTCIRCUIT
TherefrigerantcircuithasbeenmanufacturedaccordingtotheUNIEN13134directiveconcerningweldingprocedures.The
refrigerantgasemployedintheseunitsisR410Atype.Therefrigerantcircuitincludesinitsbasicversion:4‐wayreversingcycle
valve,electronicexpansionvalve,liquidseparator,liquidreceiver,checkandmaintenancevalves,pressuresafetydeviceaccording
toPEDregulation(highpressureswitch),pressuretransducerstoaccuratelyadjusttheevaporatingandcondensingpressures,
filtersforexpansionvalvetopreventitsclogging.Theversionswithvapourinjectionalsoincludeheatexchangertoproduce
vapour,electronicinjectorvalve,theON‐OFFvalvesofinjectionincaseoftwocompressors.
5.3 COMPRESSORS
ThecompressorsarescrolltypeDCinverterdesignedforusewithR410Arefrigerant,andaremountedonarubbermaterialactingasashock
absorber.Thecompressorsoftheinjectionversionsaredesignedtooptimizetheefficiencyoftherefrigerantcycleunderlow
ambienttemperaturesconditionsandaresuppliedwithconnectionforvapourinjection.
Thecrankcaseheateroperateswhenthecompressorremainsoffforatleast30minutesandifthedischargetemperatureisbelow
20°C(withhysteresisof2.0°C).Whenthecompressorrestarts,thecrankcaseheaterwillstopoperation.Werecommendtoturn
ontheunitandtoputitinstandbymodeatleast6hoursbeforethefirststartup.
Thecheckingofthecompressorsispossiblethroughthefrontpaneloftheunitthatallowsthemaintenanceofthecompressors
eveniftheunitisinoperation.
5.4 AIR‐SIDEEXCHANGERS
Theair‐sideheatexchangerismadeupofcopperpipesandaluminiumfins.Thecopperpipesdiameteris7,94mm,thethickness
ofthealuminiumfinsis0,12mm.Thepipesaremechanicallyexpandedintothealuminiumfinsinordertoimprovetheheat
transfercoefficient.Thegeometryoftheseheatexchangersensuresalowvalueair‐sidepressuredropandthenitallowstheuse
offanswithlownumberofrevolutions(withtheadvantageofreducingtheunitnoiselevel).
5.5 FANMOTOR
Thefanmotorisaxialtypewithplasticaerofoilblades.Theyarestaticallyanddynamicallybalancedandsuppliedwithasafetyfan
guard.Thefanmotorisamodulatedbrushlesstype,directlycoupledandequippedwithanintegratedthermaloverload
protection.TheprotectionclassofthemotorisIPX4accordingtoCEIEN60529.
5.6 USER‐SIDEHEATEXCHANGERS
Theuser‐sideheatexchangeraremadeupofAISI316stainlesssteelbraze‐weldedplatestype,andarefactoryinsulatedwith
flexibleclosecellmaterialandareequippedwithanantifreezeelectricheater(optionalaccessory:KA).Eachevaporatoris
equippedwithatemperaturesensorforantifreezeprotectionthatactivatesthecirculator,eveninthecasewheretheunitis
turnedoffwhenmeetingthesettingparametersbycontroller.
5.7 ELECTRICALCONTROLPANELBOARD
TheelectricalcontrolpanelboardismanufacturedaccordingtoEuropeanUniondirectivescurrentlyinforce.Toaccesstothe
electricalcontrolpanelboard,youmustopenthefrontpanel,lockthedisconnectswitchintheOffposition,(presenceofadoor
locksystem)andbymeanofaflat‐headscrewdriver,turntoopenquarter‐turnthetwolocks.TheprotectiondegreeisIP34.The
electricboxissuppliedwithaterminalblockcompletedwithfreecontactsforremoteON‐OFF,winter/summerchangeover,
auxiliaryheater,sanitarywatertemperaturesensor,managementofexternal3‐wayvalveandcontactsforremotecontrolpanel.
TheadditionoftheoptionalmoduleGIenablesthemanagementoffurtherfunctionsoftheplant.
5.8 CONTROLSYSTEM
TheN‐i‐HPunitsareequippedwithamicroprocessoradoptinganoverheatingcontrollogicprogramthroughthethermostatic
valvedrivenbythepressuretransducerssignals.TheCPUalsomanagesthefollowingfunctions:watertemperatureregulation,
antifreezeprotection,compressors’timesetting,alarmreset,alarmsmanagementandoperationLED.Uponrequest,the
microprocessorcanbeconnectedtoaBMSremotecontrolsystemandtothesimplerHNSsystemwithourterminalunits.The
controlsystemtogetherwiththeINVERTERtechnologyandtheonboardsensorscancontinuouslymonitorandadaptthe
performanceoftheinvertercompressor,ofthecirculatorpumpandofthefanmotor.

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
8
TheINVERTERsystemallowstoreducetheplant’swatercontenttoitsminimumfromtheusualvalue12‐15liters/kWto75
litersforthemodelN‐i‐HP0125,105litersforthemodelN‐i‐HP0235and150litersforthemodelN‐i‐HP0250inABSOLUTE.
Becauseofthereducedwatercontent,theN‐i‐HPunitscanbeinstalledinplantswithoutwatertankwithadvantagesofthe
reducedsizeoftheappliance,theinstallationspaces,heatlossesandinstallationandmaintenancecostsoftheplant.
5.9 MONITORINGANDPROTECTIONDEVICES
Theunitsarestandardequippedwiththefollowingcontrolandprotectiondevices:returnwatertemperaturesensorinstalledon
thereturnwaterpipelinefromtheplant,operatingandantifreezesensorinstalledontheoutletwaterpipetotheplant,high
pressuretransducer,lowpressuretransducer,compressor’sinletandoutlettemperaturesensors,thermalprotectiondevicefor
fanmotors,watersidewaterflowswitchtoprotecttheevaporator,highpressureHPflowswitch.

CAUTION:TheINVERTERcontrolsystemisabletomanageminimumwatercontentsintheplantuptoavalueof
75litersforthemodelN‐i‐HP0125,of105litersforthemodelN‐i‐HP0235,of150litersforthemodelN‐i‐HP0250,
andof45litersforthe15model.ThisvaluemakesreferencetothelitersabsolutevalueandnottoanykWof
installedpower.
5.10 HYDRAULICCIRCUIT
TheheappumpchillersofN‐i‐HPseriesaresuppliedwithanintegratedhydronickitincluding:thesafetyvalve(6bar)andthe
automaticairreleasevalveandapressuregaugesatinletandoutletoftheheatexchangerforevaluatingtheloadlosses,service
valveandflowswitch.Theversionwithanintegratedmodulatingtypecirculatorpumpadoptingabrushlessmotor,suitablefor
chilledwaterutilizationanddirectlymanagedbythecontrolleronboard.
5.11 FANSPEEDCONTROL
Thistypeofregulation,performedbythemicroprocessor,isnecessaryforoptimizingtheevaporation/condensationpressure
duringsummer/winteroperationinordertoallowthecorrectoperationoftheappliance.
5.12 ENHANCEDVAPOURINJECTION(EVI)TECNOLOGY
TheADVANTIXheatpumpsseriesN‐i‐HP‐LTareequippedwithscrollcompressors
withvaporinjection(EVItechnology)providemaximumefficiencyregardingthe
standardunitswithscrollcompressors.
TheEVItechnologyconsistsofinjectingtherefrigerantvapourattheintermediate
stageofthecompressionprocesswhichcansignificantlyincreasethecapacityand
theefficiencyofthecompressor.
EachscrollcompressorinstalledintheheatpumpsoftheseriesN‐i‐HP‐LTis
comparabletoatwo‐stagecompressorbutwithanintermediatestageofcooling
therefrigerant.
ThediagramshowsthemainstagesoftherefrigerationcycleoftheunitwithEVI
technology.Thestageofhighpressureisconsistingoftheextractionofapartof
theliquidrefrigerantcomingoutofthecondenserandthenexpandsthroughan
injectionvalve,inaheatexchangerwhichfunctionsasasubcooler.
ThegeneratedsuperheatedvapouristheninjectedintotheE.V.I.compressorin
themiddleofthecompressioncycle(throughaspecialpipeinsidethecompressor
itself).
Theadditionalsubcoolingoftheliquidthusobtainedcouldgreatlyincreasethe
capacityoftheevaporator.
Ahigherratiobetweenthecondensationandevaporationpressureswill
significantlyincreasetheperformanceofthissystemwithrespecttoallthe
traditionaltechnologiesofgascompression.
Thissystemallowstheair/waterheatpumpoftheseriesN‐i‐HP‐LTtogeneratehot
waterupto58°Candcapableofoperatingintemperaturesupto‐25°C.






N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
9

6AVAILABLEVERSIONS,SIZESANDACCESSORIES
Thecodeunitiscomposedof:
no.7fixeddigits(thefirsttwodigitsidentifytheseriesN‐i‐HPinitseventualcustomizations)
the#symbolasaseparator
no.9variablesdigits(fields)identifythesizes,versionsandfactoryinstalledaccessories
no.2fixeddigitsequalto0,ifarenotused

XX10514#(CT)(TA)(IV)(CI)(KA)(GI)(FAN)(SIL)(TR)00
FATHERCODESIZEVERSIONFACTORYINSTALLEDACCESSORIES
XX10514#CTTAIVCIKAGIFANSILTR
Heatingcapacity
Waterpipesconfiguration
Vapourinjection
Hydronicconfiguration
AntifreezeKit
Managementmoduleforplant
Typeoffan
Silencing
Batterytreatment
025kW
135kW
250kW
02pipes
1Notavailable
2Notavailable
  0Whitoutinjection
  1Withinjection
    0Hydraulicpipe
   1Integratedcirculator
   2Shutoffvalve
      0Withoutantifreezekit
      1Withantifreezekit
        0GIModulenotpresent
        1GIModulpresent
          0DCfan
          1Notavailable
            0Notsilenced
            1Silenced
            2Supersilenced
              0Coilwithouttreatement
              1Varnishedcoil
              2CoilwithFinguardtreatment




ADVANTIXSPA
ViaMansoldoGettuglio–Loc.LaMaciaZ.A.I–37040ARCOLE(Verona)

FiledVariantDescription
CT0,1,2Heatingcapacityratingoftheunit.
TA
0Theversionof2pipesprovidesonlyPlantInletandOutletWater.
1Notavailable.
2Notavailable.
IV
0Withoutvapourinjection.
1Thevapourinjectionallowstoincreasetheefficiencyofthecompressorespeciallyinthecriticalconditions(airtemp.<7°Cor>35°C).
CI
0Theconfigurationwithexternalpumpwithoutmanagementinparallelincludestheinstallationofapieceofpipeintheplaceofthe
circulator.N.B.:theexternalpumpisnotsupplied.
1Theconfigurationwithintegratedcirculatorprovidesamodulatingpumpwithbrushlessmotor,suitablefortheuseofchilledwaterand
directlymanagedbythecontrolleron‐boardunit.
2TheconfigurationwithexternalpumpwithmanagementinparallelrequeststheinstallationofanON/OFFmotorizedvalveinsteadofthe
circulatingpump,inordertoexcludetheunitifrequestedbythemanagementofmultiunitparallel.N.B.:theexternalpumpisnotsupplied.
KA
0Unitnotequippedwithanti‐freezekit.
1Theantifreezekitusesaself‐regulatingheatingcablewrappedaroundthebasementoftheunitnearthecondensingcoilandtwoinPET
heatersplacedonthefacesoftheplateheatexchanger.
GI
0Unitnotequippedwithmanagementmoduleforplant
1Theadditionalmoduleimplementssomeusefulfunctionsfortheplantmanagement,suchassanitaryhotwaterSHW,doublesetpoint,
managementoftheelectricheatersoftheplant,etc.).
FAN
0UnitequippedwithDCbrushlessmodulatingfanmotor.
1Notavailable.
SIL
0Unitnotsilenced.
1Thesilencedunit(withSLaccessory)providesthermo‐acousticinsulatorsoncompressors.
2Thesupersilencedunit(withSSLaccessory)providesthermo‐acousticinsulatorsoncompressorsandaspecialdiffuserinstalledonthefan
whichreducesthenoiselivel.
TR
0Coilwithouttreatement.
1Coilwithonlyvarnishingtreatment
2Coilwithanti‐corrosionfinguardtreatment
TheCTfieldidentifiesthesizeoftheunit.Thenameofeachunitprovidestheheatingcapacityanticipatedbythenumberof
compressors.ForexampletheunitwithCT=0(25kW)isnamedasHP‐0125.
ThefieldsTAandIVidentifythe2versionsactuallyavailable:
‐2‐pipeswithoutinjection
‐2‐pipeswithinjection(namedLT)
Theremainingfields(CI,KA,GI,FAN,SIL,TR)identifytheaccessoriesmountedatthefactory,thatshouldberequestedatthetime
oforder.
Thevariant0ofthesefieldsidentifiesthestandardconfigurationofeachsizeandversion.
Example:thestandardconfigurationofthemodelN‐i‐HP‐LT0235hasthefollowingcode:XX10514#10100000000.
6.1 OPTIONALACCESSORIES
Hi‐TMultifunctiontouchscreenremotecontrolwithcentralizedmanagementofN‐i‐HPandHNSsystem,functionsofUSBport,
temperatureandhumiditysensors.Ithasalsoanextremelyintuitiveinterfacesimplifyingtheuseofthecontroller.
CRH
Remotecontrolpaneltobeinstalledintheroomfortheunitremotecontrolling,withadditionalfunctionsincomparisontotheone
installedonboard;itcanalsomanageourhydronicterminalunits.
N.B.:thefonctionalityofthedoublesetpointaremanagedbymeanoftheHi‐TcontrollerandnotbybyCRHcontroller.
AGAnti‐vibrationrubberpadtobeinstalledinthechassisoftheunitforpossibleshockabsorption.

IMPORTANTNOTE
ONLYTHEOPTIONALACCESSORIESCANBEREQUIREDAFTERTHEORDEROFTHEUNIT,
WHILETHEFACTORYINSTALLEDACCESSORIESCANNOTBEREQUIREDAFTERTHEORDEROFTHEUNIT.




N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
11

7INSTALLATION
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.
7.1 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
createdangeroussituations.

Afterreceivingtheunit,immediatelycheckitsintegrity.Theunitleftthefactoryinperfectcondition;anyeventual
damagehastobequestionedtothecarrierandrecordedontheDeliveryNotebeforesigningit.
ADVANTIXSPAhastobeinformed,within8days,oftheextentofthedamage.TheCustomershouldprepareawrittenstatement
ofanyseveredamage.

WARNING:TheN‐i‐HPunitsaredesignedforoutdoorinsta
l
lation.Theplaceofinstallationmustbeentirelyfaraway
fromfirerisk.Allthenecessarymeasuresshouldbeadoptedinordertopreventthefireriskintheplaceof
installation.Theoutdoorambienttemperatureshallnotexceed46°C.Abovethisvalue,theunitisnolongercovered
bythedirectivesinforceintheareaofpressureequipment.

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.
7.2 LIFTINGANDHANDLING
Whentheunloadingandtheplacement
oftheunit,itishighlyrecommendedto
avoidanysuddenorviolentmotionin
ordertoprotecttheinnercomponents
andtheframe.Theunitscanbeliftedby
meanofaforkliftor,otherwisebymean
ofbelts,makingsuretodamagethe
lateralpanelsandthecoveroftheunit
usingastructureofspacersasshownin
thedrawing.Inthiscontext,itis
necessarytohookindirectlytheunitto
thebasementbutontwosteelpipesof
adequatedimensionthattopassinto
theappropriateholessituatedinthe
samebasementoftheunit).Itis
importanttokeeptheunithorizontal
duringtheseoperations.

1)Handlingwithforklift
underthepallet


2)Handlingwithforklift
undertheunitusingthe
appropriatewindowsof
passingforks

3)Handlingbymeanof
belts
7.3 LOCATIONANDMINIMUMTECHNICALCLEARANCES
AlltheN‐i‐HPmodelsaredesignedforoutdoorinstallations;anycoverovertheunitorlocatingneartrees(eveniftheypartially
covertheunit)hastobeavoidedinordertoallowtheairrecirculation.Itisadvisabletorealizeasupporingbasement,with
adeguatesizesimilartounitfoot‐print.The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.Anabsolutecarehastobetakentoensureadequateairvolumetothecondenser.The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:


ADVANTIXSPA
ViaMansoldoGettuglio–Loc.LaMaciaZ.A.I–37040ARCOLE(Verona)
Models AB*CD
N‐i‐HP 0125 15005001000850
N‐i‐HP 0235 15005001000850
N‐i‐HP 0250 15005001000850
*Therecommendedminimumdistanceforinstallation,maintenanceand
operation.
7.4 HYDRAULICCONNECTIONS
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
thesystem.Allthehydraulicconnectionsmusttobeinsulatedwithclosed‐cellmaterialofadequatethickness.Chillershavetobe
connectedtopipingbymeansofflexiblejoints.Thehydrauliccircuitshouldincludethefollowingcomponents:
•Holethermometersformonitoringthehydrauliccircuit’stemperature.
•Manualgatevalvestoseparatethechillerfromthehydrauliccircuit.
•Y‐shapedmetallicfilter(tobemountedonthereturnpipefromtheplant)withametallicmeshnotlargerthan1mm.
•Loadinggroupanddischargevalve,whereit’snecessary.

WARNING:Makesurethat,whendesigningthepipelengthanddiameter,donotexceedthemaximumheadloss
ontheplantside,pleaseseethetechnicaldatagiveninthetableofParagraph12(availablepressurehead).
WARNING:Connectthepipestotheattacksbyusingalwayskeyagainstkeysystem.
WARNING:Unitwaterinletpipehavetobeincorrespondencewiththeconnectionlabelled:”WATERINLET”,
otherwisetheevaporatormayfreeze.
WARNING:ItiscompulsorytoinstallontheWATERINLETconnectionametallicfilterwithameshnotlargerthan
1mm.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.
Allunitsarestandardsuppliedwiththewaterflowswitch(factoryinstalled).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.
7.4.1 Drainageconnection
AllN‐i‐HPunitsareadoptdrainholesonthebasementforthedischargeofthecondensatethatmayleachfromthepipesofthe
hydraulicandrefrigerantcircuits,andtodischargethewatergeneratedduringdefrostingcycles.
7.4.2 Servicevalve
Youcanusetheservicevalve,whenitisnecessarytorefilltheplantoradapttheconcentrationofglycol.Unscrewthecapofthe
servicevalveandconnecttothehoseapipeof14mm(innerdiameter)connectedtothewaternetwork,andthenloadthe
systembyunscrewingtheknurlednut.Whentheoperationisconcluded,retightentheknurlednutandscrewonthecap.Inany
case,werecommendyoutouseforthewaterloadingoftheplantanexternaltapwhosearrangementisbytheinstaller.


7.4.3 Plantdrainagesystem
Inthecasewhenitisnecessarytounloadtheplant,closeatfirsttheinletandoutletmanualgatevalves(notsupplied)andthen
removethepipesthataredisposedexternallyonthewaterinletandonthewateroutletinordertospillawaytheliquidcontained
intheunit(inordertomakeeasytheoperation,itisrecommendedtoinstallexternallytwodrainingvalves,onthewaterinletand
onthewateroutlet,betweentheunitandthemanualgatevalves).
Capwithgasket
Knurlednut
Frontpanel

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
13

7.4.4 Hydrauliccircuit
APlateheatexchanger
BWaterflowswitch
CServicevalve
DInletpressuregauge
EOutletpressuregauge
FAirventvalve
GSafetyvalve
HCirculatingpump


7.5 REFRIGERANTDIAGRAMS
7.5.1 RefrigerantdiagramofthemodelN‐i‐HP0125
CCOMPRESSOR
ST COMPRESSORINLETTEMPERATURE
DT COMPRESSOROUTLETTEMPERATURE
HP HIGHPRESSURETRANSDUCER
Pr HIGHPRESSUREFLOWSWITCH
LP LOWPRESSURETRANSDUCER
LS LIQUIDSEPARATOR
4WV CYCLEREVERSINGVALVE
LR LIQUIDRECEIVER
EEV ELECTRONICEXPANSIONVALVE
FL FILTER
MAXIALFAN
SE OUTDOORAIRTEMPERATURESENSOR
PCIRCULATORONBOARDUNIT
IN WATERINLETTEMPERATURE
OUTWATEROUTLETTEMPERATURE
CPCAPILLARY
NRVNORETURNVALVE
PVPRESSURECHECKVALVE



ADVANTIXSPA
ViaMansoldoGettuglio–Loc.LaMaciaZ.A.I–37040ARCOLE(Verona)
7.5.2 RefrigerantdiagramofthemodelN‐i‐HP0235‐0250

CCOMPRESSOR
ST COMPRESSORINLETTEMPERATURE
DT COMPRESSOROUTLETTEMPERATURE
HP HIGHPRESSURETRANSDUCER
Pr HIGHPRESSUREFLOWSWITCH
LP LOWPRESSURETRANSDUCER
LS LIQUIDSEPARATOR
4WV CYCLEREVERSINGVALVE
LR LIQUIDRECEIVER
EEV ELECTRONICEXPANSIONVALVE
FL FILTER
MAXIALFAN
SE OUTDOORAIRTEMPERATURE
PCIRCULATORONBOARDUNIT
IN WATERINLETTEMPERATURE
OUTWATEROUTLETTEMPERATURE
CPCAPILLARY
NRVNORETURNVALVE
PVPRESSURECHECKVALVE

7.5.3 RefrigerantdiagramofthemodelN‐i‐HP‐LT0125
CCOMPRESSOR
ST COMPRESSORINLETTEMPERATURE
DT COMPRESSOROUTLETTEMPERATURE
HP HIGHPRESSURETRANSDUCER
Pr HIGHPRESSUREFLOWSWITCH
LP LOWPRESSURETRANSDUCER
LS LIQUIDSEPARATOR
4WV CYCLEREVERSINGVALVE
LR LIQUIDRECEIVER
EEV ELECTRONICEXPANSIONVALVE
FL FILTER
MAXIALFAN
SE OUTDOORAIRTEMPERATURE
PCIRCULATORONBOARDUNIT
IN WATERINLETTEMPERATURE
OUTWATEROUTLETTEMPERATURE
NRVNORETURNVALVE
INJINJECTIONVALVE
VON/OFFVALVEWITHSOLENOID
PVPRESSURECHECKVALVE
INJTINJECTIONTEMPERATURE
INJPINJECTIONPRESSURETRANSDUCER


N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
15

7.5.4 RefrigerantdiagramofthemodelN‐i‐HP‐LT0235‐0250

CCOMPRESSOR
ST COMPRESSORINLETTEMPERATURE
DT COMPRESSOROUTLETTEMPERATURE
HP HIGHPRESSURETRANSDUCER
Pr HIGHPRESSUREFLOWSWITCH
LP LOWPRESSURETRANSDUCER
LS LIQUIDSEPARATOR
4WV CYCLEREVERSINGVALVE
LR LIQUIDRECEIVER
EEV ELECTRONICEXPANSIONVALVE
FL FILTER
MAXIALFAN
SE OUTDOORAIRTEMPERATURE
PCIRCULATORONBOARDUNIT
IN WATERINLETTEMPERATURE
OUTWATEROUTLETTEMPERATURE
NRVNORETURNVALVE
INJINJECTIONVALVE
VON/OFFVALVEWITHSOLENOID
PVPRESSURECHECKVALVE
INJTINJECTIONTEMPERATURE
INJPINJECTIONPRESSURETRANSDUCER

7.6 ELECTRICALCONNECTIONS
Checkifthepowersupplycircuitmeetstheunit’selectricnominaldata(tension,phases,frequency)reportedonthelabelsticked
ontheright‐sidepaneloftheunit.Thewiringmustbedoneinaccordancetothewiringdiagramattachedtotheunitandin
conformitywiththenationalandinternationalnormsinforce(attemptingtoprovideageneralmagnetothermiccircuitbreaker,
differentialcircuitbreakersforeachelectricline,propergroundingfortheplant,etc.).Powercables,electricprotectionsandline
fuseshavetobesizedaccordingtothespecificationslistedinthewiringdiagramenclosedwiththeunitandintheelectricaldata
containedinthetableoftechnicalcharacteristics(seeParagraph13).

Becauseofthepresence,insidethemachine,ofEMCfiltersforcompliancewithEMClimits(interferenceemissionand
interferenceimmunity),earthfaultcurrentsupto250mAofintensitycanbedetected.
Forproperinstallation,electricallyconnecttheunitwithadedicatedline;ifyouusearesidualcurrentcircuitbreaker,
chooseafour‐poleone,withatriggerthresholdof300mAanddelayedtriggering(super‐resistant,characteristicK).
ThemachinemustbeinstalledinTN‐S/TTpowersupplyearthingsystems.
Theelectricalinstallationmustbecarriedoutinaccordancewithnormsinforce.

WARNING:Thesupplyvoltage’sfluctuationscannotexceed±5%ofthenominalvalue.Shouldthistolerance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(Bcomponentintheprevioushydrauliccircuit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openingoftheseparatingplatebetweenthe1stand2nd
l
eveloftheelectricalboxispermittedonly
toqualifiedpersonnel.Whenloweringtheseparatingplate,becarefulnottodamagethewiringharnessthat
connectstheinverterboards.Beforeloweringtheseparatingplate,unplugthecommunicationcablesoftheinverter
boards(seethewiringdrawings"ControlSignals1",section24.2,24.6,24.11,24.15;thesecablesaremarkedinthe
drawingswiththewords:I‐,I+,GND,I2+,I2‐,GND2).

WARNING:Theremotecontrolpanelisconnectedtothewaterchillerbymeansofno.4wireshavinga1,5mm2
section.Thepowersupplycableshavetobeseparatedfromtheremotecontrolwires.Themaximumdistanceis50m.

WARNING:Theremotecontrolpanelcannotbeinstalledinareaswithstrongvibrations,corrosivegases,andexcess
ofdirtinessorhighhumiditylevels.Leavefreetheareanearthecoolingopenings.


ADVANTIXSPA
ViaMansoldoGettuglio–Loc.LaMaciaZ.A.I–37040ARCOLE(Verona)
7.6.1 Wiringterminalblock
Electricalwiringhavetobedoneonlybyqualifiedpersonnel.

Theelectricalconnectionshavetoberealizedbyqualifiedpersonnel.
Thepowersupplyoftheappliancesis3‐Ph/N/PE400V,50Hz.Thepowercablesshouldbebroughtinsidetheelectricalpanelofthe
unitandconnectedtothedisconnetingswitchinsidetheelectricpanelitself,inthebottomattheleft,asshowninthefollowing
figure:
PE
PE
193
4
5
2
7
8
PE
PE
2
5
4
3
6
1
8
7
I ON
O
OFF
PE L1 L2 L3 N
Dotheconnectionsofthepowersupplycablestothedisconnetingswitchinorderfromlefttorightas:protectiveearth(PE),
conductorL1forphase1,conductorL2forphase2,conductorL3forphase3,conductorNforneutralline.
Theuserterminalblock(UTB)islocatedinsidetheelectricalpanel.Theterminalmustbeconnectedaccordingthenotesindicated
below(thedrawingisindicativeonly).
NC1
NC1 NC2
NO2
NC2
NO2
R-
R+
R-
R+
DO2DO1 NO1
NO1
AI10-
GNDR
5+
5+
12V
12V
12V
12V
0V
0V
0V
0V
LN1 N1
N1 N1
N1 N1
N1 N1
L
L
L
GNDR
AI10+
AI10+
AI10-
ADI2
ADI2
ADI2
ADI2
DI1
DI1
DI1
DI1
DI3
DI3
DI3
DI3
DI2
DI2
DI2
DI2
DO3 DO4 DO5 N1
DO2NDO1N DO3N DO4N DO5N N2
N2
DO2DO1 DO3 DO4 DO5 N1
DO2NDO1N DO3N DO4N DO5N
PE
PE

Theconnectionsindicatedbelowarestandard.Otherconnectionsarereportedinthemanualofthecontroller(tableof
configurationsthatareallowedtouserandinstaller).
TERMINALTYPECONNECTION
PEProtectiveearthConnectionsmadeinfactory(seewiringdiagrams)
N1Neutral,230Vac,50/60HzConnectionsmadeinfactory(seewiringdiagrams)
LPhase,230Vac,50/50Hz Connectionsmadeinfactory(seewiringdiagrams)
0VPowersupply12Vac(1) Powersupply1forremotekeyboardCRH/doublesetpointhumidistatkit/Hi‐T
12VPowersupply12Vac(1)Powersupply1forremotekeyboardCRH/doublesetpointhumidistatkit/Hi‐T
0VPowersupply12Vac(2) Powersupply2forremotekeyboard/doublesetpointhumidistatkit/Hi‐T
12VPowersupply12Vac(2)Powersupply1forremotekeyboard/doublesetpointhumidistatkit/Hi‐T
ADI2AnalogueinputNTC
ST8/digitalDI7
Sanitarytemperatureprobeinlet/sanitarycallfromdigitalinput
ADI2AnalogueinputNTC
ST8/digitalDI7
Sanitarytemperatureprobeinlet/sanitary callfromdigitalinput
DI1DigitalinputDI1Connectionsmadeinfactory(seewiringdiagrams)
DI1DigitalinputDI1Connectionsmadeinfactory(seewiringdiagrams)
DI2DigitalinputDI2RemoteON/OFFinput(close=powerONunit/open=powerOFunit)
DI2DigitalinputDI2RemoteON/OFFinput(close=powerONunit/open=powerOFunit)

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
17

Theuser’sterminalforsystemmanage(GITB),ifpresent,itislocatedinsidetheelectricalpanel,asanextensionofterminalblock.
Theterminalmustbeconnectedaccordingthenotesbelow(thedrawingisindicative).
AI1E
AI1E
AI1E
AI1E
DO1E
DO1EN
DO1EN
DO1E
DO2E
DO2EN
DO2EN
DO2E
DO3EN
DO3EN
DO3E
DO3E
N1E
N1E
ADI1E
ADI1E
ADI1E
ADI1E
NC1E
NO1E
NO1E
NC1E

DI3DigitalinputDI3Summer/winterinputfromremotecall(close=summermode/open=wintermode)
DI3DigitalinputDI3Summer/winterinputfromremotecall(close=summermode/open=wintermode)
DO1NDigitaloutput,neutral230
Vac
Connectionsmadeinfactory(seewiringdiagrams)
DO1Digitaloutput,phase230VacConnectionsmadeinfactory(seewiringdiagrams)
DO2NDigitaloutput,neutral230
Vac
Connectionsmade infactory(seewiringdiagrams)
DO2Digitaloutput,phase230VacConnectionsmadeinfactory(seewiringdiagrams)
DO3NDigitaloutput,neutral230
Vac
Connectionsmadeinfactory(seewiringdiagrams)
DO3Digitaloutput,phase230VacConnectionsmadeinfactory(seewiringdiagrams)
DO4NDigitaloutput,neutral230
Vac
Connectionsmadeinfactory(seewiringdiagrams)
DO4Digitaloutput,phase230VacConnectionsmadeinfactory(seewiringdiagrams)
DO5NDigitaloutput,neutral230
Vac
Connectionsmadeinfactory(seewiringdiagrams)
DO5Digitaloutput,phase230VacConnectionsmadeinfactory(seewiringdiagrams)
NC1Digitaloutput230Vacwith
changeovercontact
NCterminalpowersupply(230VAC)3‐wayvalveforsanitarystoragetank(tobe
usedonlyinthecaseof3‐wayvalvewith3‐pointturnpowerplantside)
N1Digitaloutput230Vacwith
changeovercontact
Neutralpowersupplyterminal(230VAC)3‐wayvalveforsanitarywatertank
NO1Digitaloutput230Vacwith
changeovercontact
NOpowersupplyterminal(230VAC)3‐wayvalveforsanitarywatertank(toturnthe
valvetankside)
NC2Digitaloutput230Vacwith
changeovercontact
NCpowersupplyterminal(230V,50Hz,5Aresistive,1Ainductive)alarmme
N2Digitaloutput230Vacwith
changeovercontact
Neutralpoweronterminal(230V,50Hz,5Aresistive,1Ainductive)alarm
NO2Digitaloutput230Vacwith
changeovercontact
NOpowersupplyterminal(230V,50Hz,5Aresistive,1Ainductive)alarm
AI10+Analogueinput(ST10)0‐10V(+)signalinputterminaltochangethesetpoint/ratiometricinputsignal
AI10‐ Analogueinput(ST10)0‐10V(‐)signalinputterminaltochangethesetpoint/ratiometricinputsignal
GNDRserialcommunicationModbusgroundreferenceterminalconnectionforCRHremotekeyboard/Hi‐T
R+serialcommunicationModbus+signalterminalconnectionforCRHremotekeyboard/Hi‐T
R‐ serialcommunicationModbus‐signalterminalconnectionforCRHremotekeyboard/Hi‐T


ADVANTIXSPA
ViaMansoldoGettuglio–Loc.LaMaciaZ.A.I–37040ARCOLE(Verona)
Thefollowingarepresentthestandardconnections.Otherconnectionsandconfigurationsareshowninthemanualcontrol(the
permissibleconfigurationstablesforuserandinstaller).
TERMINALTYPECONNECTION
AI1EAnalogueinputNTCST3ETerminalinputforremoteplanttemperatureprobe(optional)
AI1EAnalogueinputNTCST3ETerminalinputforremoteplanttemperatureprobe(optional)
AID1EDigitalinputDI6Eexpansion
board
Inputterminalfordoubleset‐pointconsent(onlyifHi‐Tnotpresents)
AID1EDigitalinputDI6Eexpansion
board
Inputterminalfordoubleset‐pointconsent(onlyifHi‐Tnotpresents)
DO1ENDigitaloutput230Vac(DO1E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forpoweronthe
contactorcoilofsanitaryintegrativeheater(notsupplied)
DO1EDigitaloutput230Vac(DO1E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forpoweronthe
contactorcoilofsanitaryintegrativeheater(notsupplied)
DO2ENDigitaloutput230Vac(DO2E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forpoweronthe
contactorcoilofsanitaryintegrativeheater(notsupplied)
DO2EDigitaloutput230Vac(DO2E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forpoweronthe
contactorcoilofsanitaryintegrativeheater(notsupplied)
DO3ENDigitaloutput230Vac(DO3E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forboilerconsent
(voltageoutput,usearelay)
DO3EDigitaloutput230Vac(DO3E)
expansionboard
Neutralterminal(230V,50Hz,5Aresistive,1Ainductive)forboilerconsent
(voltageoutput,usearelay)
NO1EDigitaloutput230Vac(NO
contact)expansionboard
PowersupplyphaseNOterminal(230V,50Hz,5Aresistive,1Ainductive)
doublesetpoint3wayvalveforradiantpanels(optional)(ifthecontactis
activethevalvemustbeturntofloorside)
N1E Neutralterminalpowersupply(230VAC)doublesetpoint3wayvalvefor
radiantpanels(optional)
NC1EDigitaloutput230Vac(NC
contact)expansionboard
PowersupplyphaseNCterminal(230V,50Hz,5Aresistive,1Ainductive)
doublesetpoint3wayvalveforradiantpanels(optional)(ifthecontactis
activethevalvemustbeturntofancoilside)
8STARTUP
Beforestart‐up:
Checkouttheavailabilityofthesuppliedwiringdiagramsandmanualsoftheinstalledappliance.
Checkouttheavailabilityoftheelectricalandhydraulicdiagramsoftheplantinwhichtheunitisinstalled.
Checkthattheshut‐offvalvesofthehydrauliccircuitsareopen.
Verifythatthehydrauliccircuithasbeenchargedunderpressureandairvented.
Checkoutthatallhydraulicconnectionsareproperlyinstalledandallindicationsonunitlabelsarerespected.
Checkifallpowercablesareproperlyconnectedandallterminalsaretightlyfixed.
Checkiftheelectricalconnectionsareperformedaccordingtothenormsinforceincludingthegroundingconnection.
Checkifthevoltageisthatshownintheunitlabels.
Makesurethevoltageiswithinthelimits(±5%)oftolerancerange.
Checkiftheelectricheatersofthecompressorsarepoweredcorrectly.
Makesurethatthereisnorefrigerantleak.
Besurethatallthecoverpanelsareinstalledintheirproperpositionsandlockedwithfasteningscrewsbeforestartup.
Ifthefirststartupofthemachinedoesnotturnthedisplayonofthecontroller,youmustreversethephasesequenceofthe
powersupplycable.

WARNING:TheunitmustbeconnectedtotheelectricalnetworkandshouldbeinSTAND‐BYmode(powered)closing
thegeneralswitchinordertooperatethecrankcaseheatersofthecompressorforaminimumof12hoursbefore
startup.(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.
WARNING: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heatersarenotsuppliedthusresultinginapossiblebreakdownofthe

N‐i‐HPInverterair/waterheatpumpchillerswithaxialfans
19

compressorsoncetheunitisswitchedon.
WARNING:Donotmodifytheinternalwiringoftheunitotherwisethewarrantywillterminateimmediately.
WARNING:Thesummer/winteroperatingmodehavetobeselectedatthebeginningoftherelatedseason.Frequent
andsuddenchangesofthisseasonaloperatingmodehavetobeavoidedinordertopreventseveredamagesto
compressors.
WARNING:Whenyoufirstinstallandstart‐uptheunitmakesurethattheunitisworkingproperlyinbothcooling
andheatingmodes.
9POWER‐ONOFTHEUNIT
Forpoweringonthemachine,rotatetheouterhandleofthedisconnectortotheONposition(indicatedwith"I").
Thedisplayonthemachineisturnedononlyifthephasesequenceiscorrect(verificationtobedoneduringinitialstartup).
Betweenashutdownandsubsequentpoweron,waitaminimumtimeof1minute.
10 SHUTDOWNSFORLONGPERIODS
•Turnofftheunitbyplacingtheswitchofeachunitto"OFF"position.
•Closethewatervalves.
•Placethegeneraldifferentialcircuitbreakerto"OFF"position.

Ifthetemperaturedropsbelow0°Cthereisseriousdangeroffrost:addamixtureofwaterandglycolinthe
plant,otherwisedrainthehydrauliccircuitsoftheplantandoftheheatpump.
11 MAINTENANCEANDPERIODICALCONTROLS

WARNING:AlltheoperationsdescribedinthischapterHAVETOBECARRIEDOUTBYTRAINEDSTAFFONLY.
Beforeanyoperationorbeforeenteringtheinnercomponentsoftheunit,besurethatthepowersupplyis
disconnected.Thecompressor’sheadsanddischargepipingareusuallyathightemperaturelevels.Bevery
carefulwhenoperatingintheirsurroundings.Aluminiumcoilfinsareverysharpandcancauseseriouswounds.
Beverycarefulwhenoperatingintheirsurroundings.Aftermaintenanceoperations,re‐installthecoverpanels,
andfixthembymeansofscrews.

Therefrigerantcircuitsmustnotbefilledwithdifferentgasotherthanthatindicatedonthenameplate.Theuse
ofadifferentrefrigerantcancauseseveredamagetothecompressor.

It’sforbiddentouseoilsotherthanthosespecifiedinthismanual.Theuseofadifferentoilcancauseserious
damagetothecompressor.
Itisagoodruletocarryoutperiodicchecksinordertoverifytheproperoperationoftheunit.
OPERATION1month4month6month
Fillingthewatercircuit.x 
Presenceofbubblesinthewatercircuit.x 
Checkifthesafetyandcontroldevicesworkcorrectlyx 
Checkifthereisoilleakagefromcompressor.x 
Checkifthereiswaterleakagesfromthehydrauliccircuit.x 
Checktheproperworkingoftheflowswitches.x 
Checkthatthecrankcaseelectricheatersareproperlysuppliedandfunctioning.x 
Cleanthemetallicfiltersofthehydrauliccircuit.x 
Cleanthefinnedcoilbymeansofcompressedairorwaterjet.x 
Checkifalltheterminalsontheelectricboardaswellasontheterminalsofthecompressorareproperly
fixed.x
Checkthetighteningofwaterconnections.x
Checkthetighteningandthebalancingofthefanblades. x
Ifthevoltagiscorrect.  x
ChecktheCorrectabsorption.  x
Checktherefrigerantcharge.  x
Checktheoperatingpressure,andsuperheatandsubcooling x
Checkoftheefficiencyofcirculationpump.x
Checktheexpansiontank.  x
Iftheunitshouldbeoutofserviceforalongperiod,dischargewaterfromthepipingandfromheat
exchanger.Thisoperationisnecessaryif,duringseasonalstoppages,ambienttemperatureisexpectedtogo
downbelowthefreezingpointoftheemployedfluid.
x
11.1 ENVIRONMENTALPROTECTION
Accordingtothenormsdealingwiththeuseofdepletingstratosphericozonesubstances,itisforbiddentodisperserefrigerants
fluidsintheatmosphere.Theyhavetobecollectedanddeliveredtothesellerortopropergatheringpointsattheendoftheir