Galletti Lep series User manual

Multifunction heat pumps

40 – 420 kW

Page2of48

RG66007653–Rev.02





Page3of48

RG66007653–Rev.02



Contents

CONTENTS......................................................................................................................................................3

1GENERAL DESCRIPTION..................................................................................................................5

1.1THE LEP PRODUCT .................................................................................................................................5

1.1.1FIELD OF APPLICATION...........................................................................................................................6

1.1.2INNOVATION OF PRODUCT .....................................................................................................................9

1.2STRUCTURE.............................................................................................................................................10

1.3COOLING CIRCUIT ................................................................................................................................10

1.3.1COMPRESSORS......................................................................................................................................10

1.3.2HEAT EXCHANGERS...............................................................................................................................11

1.3.3UTILITY AND DISSIPATION SIDE CYCLE INVERSION VALVES (OPTIONAL)......................................11

1.3.4ELECTRONICALLY CONTROLLED EXPANSION VALVE...........................................................................12

1.3.5OTHER COOLING COMPONENTS...........................................................................................................13

1.3.6GENERAL THERMODYNAMIC CIRCUIT LAYOUTS..................................................................................14

1.4ELECTRICAL CONTROL BOARD ...........................................................................................................16

1.4.1CONTROL MICROPROCESSOR...............................................................................................................16

1.5CONFIGURABILITY,ACCESSORIES AND OPTIONS........................................................................17

2TECHNICAL DATA...............................................................................................................................18

2.1PERFORMANCE OF LEP PAND HHEAT PUMP UNITS...................................................................20

2.2CHARACTERISTIC CURVES OF THE HYDRAULIC PUMPS ASSOCIATED TO THE UNITS...........23

2.3NOISE EMISSION ..................................................................................................................................30

2.4OVERALL DIMENSIONS AND WEIGHT ..............................................................................................31

2.5OVERALL DRAWINGS...........................................................................................................................32

3INSTALLATION....................................................................................................................................37

3.1PRELIMINARY PROCEDURES ..............................................................................................................37

3.1.1LIFTING AND CONVEYANCE..................................................................................................................37

3.1.2UNPACKING............................................................................................................................................37

3.1.3SITING....................................................................................................................................................37

3.1.4INSTALLATION CLEARANCE REQUIREMENTS.......................................................................................38

3.2HYDRAULIC CONNECTIONS ................................................................................................................38

3.2.1HYDRAULIC CONNECTION TO EVAPORATOR .......................................................................................39

3.2.2FILLING TANK AND/OR PUMPS (IF FORESEEN BY THE SYSTEM).......................................................40

3.3ELECTRICAL CONNECTIONS................................................................................................................40

3.4ELECTRIC CONNECTIONS OF THE CIRCULATION PUMP................................................................41

3.4.1REMOTE CONTROLS..............................................................................................................................41

3.4.2REMOTE SUMMER-WINTER CHANGEOVER (HEAT PUMP AND MULTIFUNCTION VERSIONS)..........41

3.5STARTING UP .........................................................................................................................................41

3.5.1COMMISSIONING INSTRUCTIONS FOR LEP SERIES CHILLERS.........................................................42

3.5.2STARTING OPERATION..........................................................................................................................42

3.5.3CHECKS DURING OPERATION...............................................................................................................43

3.5.4CHECKING REFRIGERANT LOAD...........................................................................................................43

3.5.5STOPPING THE UNIT .............................................................................................................................43

Page4of48

RG66007653–Rev.02



4OPERATING LIMITS:........................................................................................................................44

4.1USE OF GLYCOL SOLUTIONS...............................................................................................................44

4.2WORKING LIMITS.................................................................................................................................44

4.3WATER FLOW TO EVAPORATOR.........................................................................................................45

5CALIBRATION OF CONTROL DEVICES ...................................................................................46





Page5of48

RG66007653–Rev.02



1Generaldescription

1.1 TheLEPproduct

LEPHmultifunctionunitsareairconditioninganddomestichotwater(DHW)productionunits,designedforboth

domesticandindustrialuseoperating24hoursaday.Theycoverathermaloutputrangefrom40to429kW,

guaranteeingahighlevelthermodynamicperformanceandawiderangeofconfigurationpossibilities,bothin

accessoriesandcoolingcircuit.



LEPmachineshavebeenbuiltinafullyfairedframeworkmakingtheassemblyextremelysilent.Theycanthereforebe

installedinopenenvironmentswithoutneedingtobeclosedoff.Theall‐newnewrounded‐offshapeenhancestheir

outwardappearance.TheexclusiveuseofR4120Arefrigerantandofhigh‐qualitycomponentsinthechiller,hydraulic

andelectricalpartsmakestheLEPunitsstate‐of‐the‐artchillersintermsofefficiency,reliabilityandemittedsound

output.



Allversionsareavailableinsizesreferredtointhetablebelow.ThesizesoftheLEPunitsareexpressedintheX‐

coordinatesofthetableintermsofratedchillingoutput[kW],obtainedinconditionswithchilledwaterproducedat

7°Candcombinedwiththeevaporativeturretwithdissipationcircuitwaterat29°inletand35°outlet.



TableI‐TablesummarisingtherangeofLEPproductsinitssizesandEfficiencyPacks:



Sizes:040050060070080090110130140160180200210240280310340370420

Efficiency

Pack1F1F1F1F1F1F1F2F2F2F2F2

Efficiency

Pack2F1F1F1F1F1F1F2F2F2F2F2

Efficiency

Pack3F4F4

Efficiency

Pack4F3F3F3F4F4F4F4F4F4F4F4



TheordinatesofTableIidentifytheavailable"EfficiencyPack"whichdeterminestheconfigurationofthecooling

circuit;forfurtherdetails,seeparagraph1.3“Coolingcircuit”.Forexample,thesize“LEP2090”developsa90kW

chilleroutputandisimplementedwithEfficiencyPack2(twocompressors,onecoolingcircuit).Thedimensionsofthe

"Frames"oftheunitsarespecifiedinthecells,bymeansofreferencesymbolsF1F2F3(withincreasingdimensions);all

theinformationconcerningtheweightofthemachinesandthedimensionscorrespondingtoeachframeisavailablein

paragraph2.3"Overalldimensionsandweight".

AllsizesoftheLEPseriescanbeimplementedwiththestandard"S"set‐uporthe"L"soundproofset‐up,coveringthe

compressorandouterpanellingwithsoundproofmaterial.

AllsizesoftheLEPseriescanbecombinedwith2or4pipesystems(seeparagraph1.1.1forrelevantinformation);the

letter“P”indicatesaheatpumpwithtotalrecoveryfor4‐pipesystems,theletter“H”indicatesmultifunctionheat

pumpsfor2‐pipesystems.



TheLEPunitscanbeidentifiedbythefollowingsymbol:



LEP072HS



‐1‐IdentificationsymbolofGallettiModel(e.g.:“LEP”units)

‐2‐Unitsizesexpressedinratedchillingoutputx10[kW](e.g.:70kW)

‐3‐EfficiencyPack:layoutofcoolingcircuitandcompressors(e.g.:EfficiencyPack2)

‐4‐Unitversion(e.g.:“H”,Multifunction)

‐5‐Unitexecution(e.g.:“S”,nooptionalsoundproofingpresent)

1

2 3 4

Page6of48

RG66007653–Rev.02



1.1.1 Fieldofapplication

LEPunitsareintendedforcooling‐heatingwaterandglycolsolutionsuptoamaximumof30%theweight,incivil,

industrialandtechnologicalairconditioningenvironments.



The use of LEP units is recommended within the functioning limits carried in this document, or

else the warranty attached to the sales contract would cease.



LEPmultifunctionunitshave6waterconnectionsreferringtothreedifferenthydrauliccircuitsfor2‐pipesystems:

‐Circuit1,productionofcoldorhotwaterforutility;

‐Circuit2,productionofhotorcoldwaterfordissipationinoppositiontotheutility;

‐Circuit3,productionofdomestichotwater(DHW).



Themultifunctionunitsconsequentlyhave3distinctheatexchangers:

‐Plateheatexchanger1withbothevaporationandcondensationfunction,intendedfortheutilitycircuit;

‐Plateheatexchanger2withbothevaporationandcondensationfunction,intendedforthedissipationcircuit;

‐Plateheatexchanger3forDHWcircuitwhichactsasacondenser.



LEPmultifunctionunit:displayofwaterconnectionsandthermodynamiccircuit

Forthecorrectdirectionoftheconnections,alwaysrefertothedimensionaldrawingattachedtothedocumentation.



   



DISSIPATION

UTILITY

DHW

Page7of48

RG66007653–Rev.02



ThefollowingpointsschematisetheoperatingfunctionsoftheLEPHmultifunctionunit:



‐Chilling

TheLEPHmultifunctionunitin“Chiller”modechillsthewatertocooltheenvironmentontheutilityside,dissipating

condensationheatbymeansofthewaterwhichiscooledbythedissipationheatexchanger.



‐Heating

TheLEPHunitin“HeatPump”modeheatsthewaterinthecondensertoheattheutilityside,dissipatingthe

evaporationcoolingcapacitybymeansofthewaterwhichisheatedinthedissipationheatexchanger.Inotherwords,a

certainamountofheatiswithdrawnfromathermalsourcewhichisthenyieldedtotheutilityafterithasreacheda

sufficientthermallevelwhichissuitableforitsneeds.



Page8of48

RG66007653–Rev.02



‐Productionofhightemperaturehotwaterfordomesticuse

TheLEPHmultifunctionunitin“ProductionofhightemperatureHotWaterfordomesticuse”(DHW)modeheatsthe

waterinthecondenserspecificforDHW,dissipatingtheevaporationcoolingcapacitybymeansofthewaterwhichis

heatedinthedissipationheatexchanger.



‐Coolingsimultaneoustoproductionofhightemperaturehotwaterfordomesticuse

TheLEPHmultifunctionunit,in“Chiller+DHW”mode,produceschilledwaterwiththesimultaneousproductionof

hightemperaturehotwaterfordomesticuse,thankstoatotalheatrecovery.



LEPunitsmakeitpossibletoinstallindifferentlyasimple2or4pipeairconditioningsystem.Thetwoorfourpipe

designationreferstoawaterdistributionsystemsupplyingeachairconditioningapplianceofabuilding.A2‐pipe

systemincludesonesupplylineandonereturnlinetotheunit.Theterminalssuppliedbya2‐pipesystemhaveonlyone

heatexchangerwhichactsalternatelyasaheatingandcoolingcoil,dependingontheoperatingmode.The4‐pipe

systemincludesadistributionsystemwhichsuppliesbothhotwater(withrelativereturnlines)andcoldwater(with

relativereturnlines).



Page9of48

RG66007653–Rev.02



‐2‐pipeairconditioningsystemlayout:



‐4‐pipeairconditioningsystemlayout:



The2‐pipesystemsarelessflexiblethan4‐pipesystemsbecausetheentirebuildingiseitherheatedorcooled,though

theinstallationgreatlysavesenergy.

Ifthedesignrequiresa4‐pipesystem,theLEPrangeprovides,ondemand,thePunitswhicharecompatiblewiththis

configuration.



1.1.2 Innovationofproduct

LEPunitsprovideexcellentthermodynamicperformanceandthemaximumflexibilityofusethankstoaconstant

research:theycandriveeither2or4pipesystems,produceDHWtogetherwithcoldwater,andcoverawiderangeof

poweroutputs.Thejointapplicationofscrollcompressors,advancedcontrolsystemsandR410Arefrigerantgasbring

aboutcompactcircuitandhigh‐levelCOP.

Thepossibilityofkeepingtheevaporatorontheinsideallowsyounottoaddglycoltothewaterinthesystem,with

clearadvantagesintermsofthermodynamicperformance,preservationfromcorrosionandrespectforthe

environment.Italsomakesitpossibleforallthecomponentsrequiringmaintenancetobeinstalledinaneasily

accessiblespace.

Forlargebuildings,airconditioningcanbeimplementedasthefloors/zonesaresoldorrented,byinstallingaLEPunit

foreachfloorinasmallsizetechnicalroom,thusdividingtheinvestmentintime.Theoveralldimensionsoftheunits

(lessthan90cmdepthinthehigheroutputsizes)makethemeasytobeinstalledsincetheyfitthroughanydoor.



Themaininnovationswhichthisproductpresentsaresummarisedinthefollowinglist:



‐Possibilityofusingwaterwithoutglycolintheutilitycircuit

‐Heatpumpmodewithchillersidecycleinversion

‐Possibilityofevenheatpumpversionsusingcondensationcontrol

‐Electronicallycontrolledexpansionvalve

‐Truemultifunctionexecutions,withsimultaneousproductionofhotandcoldwaterbymeansoftotalheatrecovery

‐HighCOP(Coefficientofperformance)ofthermodynamiccycle

‐Lesschargingwithrefrigerant

‐Lessspacetakenupinplan(specificoutputsupto153kW/m2)

‐Innovativeaestheticalfeaturesandfullsafetysinceunitsarecompletelyclosed

‐Nonoiseontheoutside,lessnoiseontheinsideduetodual‐soundproofinginthelow‐noiseversion

Page10of48

RG66007653–Rev.02



1.2 Structure

AlloftheLEPseriesunitsareconstructedwithasupportbaseandpanellingmadeofgalvanisedsheetmetalpainted

withblackpolyesterepoxypowdersoven‐polymerisedat180°C.Theunithasanexclusivedesignenhancingtheoverall

assemblywithasmartoutwardappearance.Moreovertheclosedunitmakesthecomponentsinaccessible:thisaspect

togetherwiththewideuseofsoundproofmaterialinsidethecompartmentandaroundthecompressors(optionalfor

low‐noiseversion)reducestheemittedsoundoutputtoexceptionallylowlevels(Lp<67dB‐A@1metreforlarger

sizes).

Thehydraulic/chillerconnectionsareenvisionedontherightside,whenlookingattheelectricalcontrolboard,to

reducethetechnicalspacerequiredforinstallation.Allthepanelsareremovable(exceptfortheoneontheright,upon

whichallthehydraulicconnectionsarefitted)makingtheunitfullyaccessibleeventhoughroutinemaintenanceonly

needsaccessingfromthefront.

1.3 Coolingcircuit

ThecoolingcircuitisfullyimplementedintheFactoryexclusivelyusingprimebrandcomponentsandqualified

operatorsincompliancewithDirective97/23forallthebrazingoperations.



Therangecanbeconfiguredinthecoolingcircuitmode(EfficiencyPack)which,dependingonthesize,canbeadual

compressoronadoublecircuit(EfficiencyPack1)forahighlyredundantsystem,dualcompressor(tandem)onsingle

circuit(EfficiencyPack2)forgreaterefficiencyinpartialloads,threecompressors(trio)onsinglecircuit(EfficiencyPack

3)combiningeconomicalimplementationandpartialloadefficiencyandfourcompressors(twotandems)onadouble

circuit(EfficiencyPack4)forasystemwhichisbothredundantandefficientwiththereducedload.



TableII–ListandgraphicalrepresentationoflayoutofcomponentsinfourEfficiencyPacks:



 



Solutionswithmorethanonecircuitprovidetheutmostreliabilitythankstotheredundancy,whilethosewithmore

thanonecompressoronacircuitprovidepartialloadswithidealefficiency,alsothankstoincreasedheatexchange

surfaces.

1.3.1 Compressors

OnlyprimeinternationalbrandScrollcompressorsareusedontheLEPunits.TheScrollcompressoristhebestsolution

todayintermsofreliabilityandefficiencyintherangeofpoweroutputsupto182kWforeachcircuitandthebest

solutionintermsofemittedsoundoutput.Theoptimisationoftheprocessingtogetherwithacarefulchoiceofthe

intrinsicvolumetriccompressionratio(RVI)providesaclearimprovementinisentropiccompressionperformanceand

thereforeareductioninenergyloss.Theuseofascrollcompressorpermitsusinglowviscosityoilswhichcomparedto

higherviscosityoilsreducesthermalresistancefortheevaporatorwithanevaporationTemperatureincreasebeyond

1.5°C(morethan5.5%inEER)respecttoothersolutions.

Thecompressorsaresuppliedcompletewithmotorprotectionagainstoverheating,overloadsorexcessivedeliverygas

temperatures.Theyaremountedonanti‐vibrationrubber,completewithoilchargeandinsertedinasoundproof

compartmentwithsound‐absorbingmaterial.Alsocompletewithautomaticoilheatertopreventtheoilfrombeing

dilutedbytherefrigerantwhenthecompressorstops.



EfficiencyPackONE:EfficiencyPackONE:

EfficiencyPackTWO:EfficiencyPackTWO:

EfficiencyPackTHREE:EfficiencyPackTHREE:

EfficiencyPackFOUR:EfficiencyPackFOUR:EfficiencyPackFOUR:

Page11of48

RG66007653–Rev.02



N.B.:Scrollcompressors,justlikeallair‐tightcompressors,areclassifiedaspressurerecipientsincompliancewithPED

CE97/23forthatwhichregardsthelowpressuresectiontowhichthePSindicatedonthedataplaterefers.

1.3.2 Heatexchangers

Onlybrazedplateheatexchangersareused,madeofausteniticstainlesssteelAISI316withAISI316Lconnections,

featuredbyareducedcarboncontenttosimplifybrazingoperations.Thesolutionofthebrazedplateheatexchanger

representsthestate‐of‐the‐artintermsofthermalexchangeefficiencyandallowsastrongreductionofrefrigerantload

comparedtostandardsolutions.Thehighdegreeofturbulenceinducedbytheinternalcorrugationoftheplates

togetherwiththeirperfectsmoothingfeatures,makesitdifficultforfilthtodepositorforlimestonetobuilduponthe

condenserside.TheseheatexchangersalsomakeitpossibletouseR410Afluidwhich,thankstothehigh‐levelthermal

conductivityoftheliquidphaseandtoitspracticallyazeotropicbehaviour,enhancesthermalexchangeduring

evaporationwithgreaterperformancethanothermethane‐derivativefluidsoftheHFCfamily.



‐N.B.:duetothermalinsulation,thedataplateincompliancewithPEDCE97/23isnotlegible,buttheserialnumber

oftheheatexchangerandthedeclarationofconformityaredetectedduringproductionandareanintegralpartof

theGallettiarchive.



1.3.3 Utilityanddissipationsidecycleinversionvalves(optional)

WhenLEPHreversiblechillersswitchfromchillertotheheatpumpandviceversa,theyperformtwocycleinversions:

onerefrigerantsideandonewaterside.Theinversionvalveofthewater‐sidecycleswitchesfrompositionAtoposition

Bandviceversa,bymeansofanelectricaldriverwithoutchangingthetraveldirectionfortheoutsideutilities.This

allowstoinverttheflowdirectionintheheatexchangers,keepingthemagainsttheflowrespecttotherefrigerantfluid

ineveryoperatingmode.Duetothecomplexityofthecircuit,inmultifunctionunitstherefrigerantsidecycleinversion

isprovidedbyasolenoidvalvesystem(seeparagraph1.3.6“Generalthermodynamiccircuitlayouts”forfurther

information).Thewater‐sidecycleinversionvalveisanoptionalcomponent.



Page12of48

RG66007653–Rev.02







Refrigerant‐sidecycleinversionvalve Heat‐transferfluid‐sidecycleinversionvalve



  



1.3.4 Electronicallycontrolledexpansionvalve

Theelectroniccontrolvalvewithexternalequalisationandbuilt‐inMOPfunctionismanagedbythesoftwareand

thereforemakesthecoolingcircuitoperationveryefficient,decreasingthepowerabsorbedbythesystemwhena

suddenthermalloadvariationoccurs.Theshutterinthecentralpartofthevalvecanalwaysslideverticallywithan

amplestrokeallowingvariationofthedegreeofopeningoftheorificeofthefluidpassage.Theuseofthisvalvemakes

areductioninenergyconsumptionofthecompressorpossiblewhenthesurroundingconditionsallowtobringthe

pressuredifferencebetweentheevaporatorandtheairconditionerbelow5bar,thusimprovingperformance.

Page13of48

RG66007653–Rev.02



1.3.5 Othercoolingcomponents

‐Molecularsievefilterdryer

‐Sightglasswithhumidityindicator

‐One‐wayvalves(onlyreversibleheatpump)

‐LiquidreceivermarkedincompliancewithEECDirective97/23PED(onlyreversibleheatpumpsorunitswith

remotecondenser)

‐Highandlowpressureswitches

‐SolenoidvalvesformanagementofdifferentairconditioningandDHWproductionmodes(onlyformultifunction

versions)

‐Schradervalvesforcontroland/ormaintenance



Page14of48

RG66007653–Rev.02



1.3.6 Generalthermodynamiccircuitlayouts

StandardlayoutofthermodynamiccircuitofLEPunitsincoolingmode



StandardlayoutofthermodynamiccircuitofLEPunitsinheatingmode



Compressor

Liquidreceiver

Liquidseparator

Plateheatexchanger

Controlprocessor

Expansionvalve

Filter

Solenoidvalve

One‐wayvalve

Liquidindicator

EVAPORATOR

(UTILITY)

CONDENSER

(DISSIPATION)

EVAPORATOR

(DISSIPATION)

CONDENSER

(UTILITY)

15

3

6

8

10

Page15of48

RG66007653–Rev.02



StandardlayoutofthermodynamiccircuitofLEPunitsforDHWproduction



StandardlayoutofthermodynamiccircuitofLEPunitsincoolingmodewithsimultaneousDHWproduction





EVAPORATOR

(UTILITY)

CONDENSER

(DHW)

CONDENSER

(DHW)

EVAPORATOR

(DISSIPATION)

Page16of48

RG66007653–Rev.02



1.4 Electricalcontrolboard

TheelectricalcontrolboardisimplementedandwiredincompliancewithstandardEN60204‐1.Thecontrolboardcan

beaccesseddirectlyfromthefrontoftheunit.Thecomponentscanonlybeaccessedaftertheunithasbeen

disconnectedfromthemainsbymeansofthegeneraldisconnectionswitchwiththedoor‐lockingfunction.Allthe

remotecontrolsareimplementedwithlowvoltagesignalsat24V,poweredbyanisolationtransformerpositioned

insidethecontrolboard.Allthecontrolboardshaveanaircirculationsystemwithauxiliaryfans.Thepositionand

orientationofthemaindisconnectionswitchhavebeenstudiedtofacilitatewiringoperationsintheworksitewithout

thepowercordsneedingtoperformdifficultpassagesandimprobablebends.Alltheutilitiesareprotectedagainst

overloadsandshort‐circuitsandthefittingcircuitbreakersswitchescanbeconfiguredforeachload(optional):however

thermalprotectionisalwaysimplementedbythermistorchainsplungedinthewindingsofeachelectricmotorand

adequatelycontrolledbyon‐boardelectronics.Thephasesequencerelayisfittedasperstandardonalltheunits

inhibitingoperationofthecompressorshouldthephasesequencenotberespected:onlyonerotationdirectionis

possibleforthescrollcompressors,justlikethescrewandRotarycompressors.TheunitisratedIP43whichmakesit

suitableforoutdoorinstallation.ThecontrolboardwiththeopenpanelmaintainsanIP20rating.Insidetheelectrical

controlboardoftheBasiccontroltherearetwomanualselectorstoenableremoteswitchingon‐off,seasonal

changeover(onlyheatpumps)andtoselectlocalorremotecontrol:remoteconsentsareimplementedbylowvoltage

contactsplacedontheterminalboard.

1.4.1 Controlmicroprocessor

LEPseriesunitshavetwodifferentmicroprocessorcontrollevels:

‐Basic–CarelµChiller

‐Advanced–CarelseriespCO

Thislatter,besidesthefeaturesdescribedhereafter,makesitpossibletocustomisesoftwaretomeetallthe

requirementsofthesystem,includingmanagementofthecascadeunitswithstep‐controlorcascadelogic.

Themicroprocessoron‐boardtheunitcontrolsthevariousoperatingparametersbymeansofakeyboardset‐uponthe

electricalcontrolboard:

‐Compressorconnection/disconnectiontomaintaintheset‐pointofthechillerinletwaterT

‐Alarmmanagement

‐High/lowpressure

‐Antifreeze

‐Flowswitch

‐Pumpalarm

‐Alarmsignals

‐Displayofoperationparameters

‐Antifreezeprotectionofevaporator

‐Controlofmaximumnumberofcompressorstarts

‐Serialoutputcontrol(optional)RS232,RS485

‐Incorrectsequencephases(notviewedondisplay,butkeepscompressorfromstarting)



Asforremotecommunication,thecontrolsareset‐upforconnectionwithadvancedBMSsystemsandtheHSD(Galletti

SoftwareDepartment)structureiscapableofassistingcustomersinintegrationoperations.Theinterconnectivity

possibilitiesofthesystemaresynthesisedasfollows:

‐Serialportsavailable

‐RS232

‐RS485

‐Ethernet(“Hiweb”board)

‐GSMModem:withprepaidcardandrelativeantennaon‐boardmachineforautonomoustwo‐waycontrolof

alarmsand/orset‐pointvariations

‐Protocols

‐Carel [BuiltIn]

‐Modbus®[BuiltInwithAdvancedcontrols]

‐Modbus®[WithexternalgatewaywithBasiccontrols]

‐LonWorks®[Dedicatedserialboardtoberequestedwhenorderingthemachine]

‐BACnet™[Withexternalgateway]

‐TCP‐IP[Withexternalgateway]

‐TREND®[Dedicatedserialboardtoberequestedwhenorderingthemachine]



(ref.Microprocessorcontrolmanualforfurtherdetails)



Page17of48

RG66007653–Rev.02



1.5 Configurability,accessoriesandoptions

VariantsofLEPproduct:



‐Soundproofing:

‐Standardunitnotequippedwithsoundinsulation

‐Low‐noiseunitthroughsound‐absorbinghousingforeachcompressorandinsulationofframepanelswith

sound‐absorbingtexturedmaterial

‐Rubber‐basedorspringanti‐vibrationdevices



‐Thermaldistributionsystem(softwareset‐up):

‐2pipes:singledistributioncircuit

‐4pipes(ondemand):namelytwoseparatecircuits,hotandcold



‐Downgradetomechanicalexpansionvalve,ondemand(theelectroniccontrolledexpansionvalveisstandard)



OptionsofLEPproduct:



‐Thermodynamiccircuit

‐Condensationcontrolvia0‐10Vsignalofexternalmodulatingdevice(2‐wayvalve,3‐wayvalve,variablespeed

circulationpump)

‐Outdoortemperatureprobeforset‐pointcompensation

‐Analoguepressuregauges



‐Electricalcontrolboard:

‐Powersupplyin400/3+N/50Hzwithmotorcircuitbreakers

‐Shuntcapacitors

‐Soft‐starterkitforreductionofstartingcurrentsforeachcompressor

‐Clockboard

‐ON‐OFFstatusofcompressors

‐Remotecontacttolimitcompressorswitch‐on

‐Configurabledigitalalarmboard



‐Filtercut‐offkit(solenoidandcockonliquidline)



‐Externalmodulewithrecirculationpumpsfordissipationcircuits,utilityandDHW(multifunctionversions)

‐Four‐wayvalvesforwater‐sideflowinversion(maintainingcounterflow);four‐wayvalvescanalsobeincluded

insupply,withouttheoptionalhydronicmodule

‐PairofVic‐TaulicjointsforIN/OUTwaterconnection

‐Blade‐typeflowswitchincluded





Page18of48

RG66007653–Rev.02



2Technicaldata



TableI–TechnicaldataofLEPHmodelsfromLEP1040toLEP1160instandardoperatingconditionsforverticalprobe

geothermicapplication



SynthesisofLEPseries

technicaldata 041/2051/2 061/2 071/2 081/2 091/2 111/2 131/2141/2144161/2 164



Cooling@30/35;W12/7

CoolingCapacity[kW]47,656,364,973,484,694,0114130149149167167

AbsorbedPower[kW]10,513,514,717,018,421,124,328,332,533,437,036,9

AbsorbedCurrent[A]15,920,322,225,628,032,037,142,949,550,956,456,2

EER[‐]4,54,24,44,34,64,54,74,64,64,54,54,5

UTILITYWaterFlowRate[l/h]8219972411212126851460416228196342237525727256922873028873

UTILITYWaterPressureDrops[kPa]334445433442374542424747

DISSIPATIONWaterFlowRate[l/h]99191188813582154221760119645236072696531025311363476734889

DISSIPATIONWaterPressureDrops[kPa]446147614758486157586364



Cooling+DHW@12/7°C;45/50°C

CoolingCapacity[kW]42,550,657,865,875,583,9102116133134149149

ThermalOutput[kW]54,565,774,585,196,6108130148170172191192

AbsorbedPower[kW]12,615,917,620,222,125,429,534,439,239,944,344,4

AbsorbedCurrent[A]19,424,326,831,034,239,145,753,060,661,668,568,7

COP [‐]8,017,687,917,798,067,878,117,978,037,937,957,94

UTILITYWaterFlowRate[l/h]733387359982113571301914474175091993822954230502565125738

UTILITYWaterPressureDrops[kPa]273636352734303635353838

DHWFlowRate[l/h]94181133612861146841669418668224182563629462296713300633122

DHWPressureDrops[kPa]425857564354475754556060



Heating@B10/7;W40/4520%eg

ThermalOutput[kW]54,365,474,284,696,1108129148170171190191

AbsorbedPower[kW]13,016,317,920,822,625,930,135,240,040,745,345,6

AbsorbedCurrent[A]19,424,226,831,034,239,045,653,060,561,668,468,8

COP [‐]4,184,014,154,074,254,154,294,194,244,204,194,19

SCOP5,855,826,125,946,195,896,136,066,045,935,935,99

Energyefficiency230228240233243231241238237233233235

EnergyefficiencyratioA+++A+++A+++A+++A+++A+++A+++A+++A+++A+++A+++A+++

UTILITYWaterFlowRate[kg/h]93761128212803146111661418580223072550829316295403284633016

UTILITYWaterPressureDrops[kPa]415857564354465754545959

DISSIPATIONWaterFlowRate[kg/h]121461446716540188062156123970289863300938001381914247442688

DISSIPATIONWaterPressureDrops[kPa]648767876783698882839092



DHW@@B10/7;W40/4520%eg