TEN N2 PRO-1234 User manual

Version3.4
Sept2014
N2 PRO/ N2 PRO-1234
REFRIGERANT
RECOVERY& RECHARGING
SYSTEM
OPERATORSMANUAL
TENAutomotiveEquipment Limited
www.ten-automotive.co.uk

TENAutomotiveEquipmentLimited
1Version3.4
Sept
201
4
1:PREFACE
IMPORTANT: ItismandatoryintheUK thattheOperator
ofthisEquipmentisqualifiedinaccordance withEC802-2006.
PleasereadthisOperatorsManualcarefullyand adhereto
theSafetyPrecautionsatALLtimes. Mis-handlingof
Refrigerantsand improperuseoftheEquipment&
Accessoriesmaycauseseriousinjuryorharmtothe
Operator. DamagetotheEquipmentandVehicleA/C
Systemmayalsooccur.
TheModel N2 PRO shouldbeusedonlywith R134A
VehicleA/CRefrigerantSystems.
TheModel N2 PRO-1234 shouldbeusedonlywith
R1234YF VehicleA/CRefrigerantsystems.
RecycledRefrigerant(R134A/R1234YF)meetsthe
requiredSAE standard.All Interfaces, Softwaredesignand
Operation conformtoEC802-2006(MACS)Directive.

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2:INDEXLISTING:
1. PREFACE1
2. INDEXLISTING 2
3. SAFETYPRECAUTIONS3
4. WARRANTY 4
5. GLOSSARYOFTERMS5
6. CONTROLPANEL 5
7. SYSTEMINITIALSETUP6
7.1Addingrefrigeranttotheworktank (firsttime)6
7.2Printerset-up &operation(optional)8
8. OPERATION 11
8.1Recoverrefrigerantand oildrain11
8.2VacuumA/Csystemandinjectnewoil 13
8.3Recharge A/Csystem14
8.4Hoserecoveryand systemselfcleaning 16
8.5Addingrefrigeranttoworktank 17
8.6Fullyautomaticoperation 18
9. ROUTINEMAINTENANCE25
9.1Checkingthecapacityofthefilter-drier25
9.2Changingthefilter-drier26
9.3Checkingthevacuumpumpoilusage28
9.4Replacingvacuumpumpoil 29
10. SPECIFICATIONS32
11. SPAREPARTS LIST33
12. CONTACTINFORMATION33

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3:SAFETYPRECAUTIONS
WARNING!! Whenhandling Refrigerant, avoidskincontact;thelowboiling temperatureof
refrigerant(-30°C)cancausefreezing. Contactwithrefrigerantmaycausefrostbite, blindness
andotherseriouspersonalinjury.
IMPORTANT!! Atall timesitisrecommendedtowearsuitablepersonalprotective
equipmentPPE(Overalls, SafetyGlasses/gogglesandGloves).
Werecommendthatthisequipmentisusedbytrainedpersonnelonly,whounderstandthe
basicsofcooling systems,refrigerantsandpossibledamagethatpressurizedequipmentmay
cause.Itis mandatoryintheUKthattheOperatorisqualifiedinaccordancewithEC802-2006.
Carefullyreadtheinstructionscontainedinthismanualandstrictlyadheretotheprocedures
described. ThisisparamounttoOperatorsafety.
TheequipmentmustalwaysbeusedundertheOperator’scontrol.
Donotoperatetheunitwithanyrefrigerantotherthantheoneithasbeendesignedfor.(i.e.
R134AorR1234YF).
Beforeeachnewvehicleconnection,ensurethattheLP&HPhoseshavebeenpreviously
evacuatedandthatzeropressureisshownonbothgauges.
Avoidbreathing refrigerantvapours. Onlyoperatetheunitinwellventilatedareas, do notuse
whileworkinginavehicleinspectionpit.
Donotoperatenearopenflamesandhotsurfaces.Hightemperaturescauserefrigerantto
decompose, releasing hazardoustoxicandcausticsubstances.
Alwaysconnectedtheunittoa3pin,protectedandsuitablyearthed,mains240vACsupply.
Useoftrailing socketsandextensionleadsarenotrecommended.
Beforeconnectinganddisconnectingtheunit,ensurethatanyprogrammedoperationcyclehas
beencompletedandthatall valves areclosedtoavoidreleaseofrefrigeranttotheatmosphere.
Neverfillanytank, internalorexternal,withliquidrefrigeranttomorethan75%ofmaximum
capacity.
Avoidspillageanddripping. Cleanandmopup excess fluids.
ITISILLEGALtochargeasystemwithrefrigerant, tocheckforleaks.Alwaysuse(Oxygen
Free)Nitrogenforthispurposeduringtheappropriateprogrammedoperationcycle.
BacktoIndex

TENAutomotiveEquipmentLimited
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4
CERTIFICATE OFWARRANTY
TENAutomotiveEquipmentLimited hereby declaretowarranttheN
2
PRO/N
2
PRO-1234 producttobefree fromdefectsinmaterialand manufactureforaperiodof12
monthsfromthedateofpurchase.Duringthisperiodsuchdefectivecomponentswill be
replacedwithoutchargesfor“Callout”or“Labour”withtheexceptionofinstances
referredtoasDisclaimersand Exclusionsortheunit ispurchasedand/oroperatedoutside
theUnitedKingdom.
DISCLAIMERAND EXCLUSIONS:
ChargesforCallout,Labour,Calibration and,whereapplicable,replacementcomponents
ormaterialswill belevied, attheprevailingrates, whereby:-
1:Thedefectorconditionoftheequipmentisaproductofneglect,improperuse,
lackofroutineoperatormaintenance,vandalism,accident,fire,floodorActof
God.
2:ConsumableitemssuchasPrinterRolls,Cables,ExternalHosesandQuick
CouplerConnectors, Oil/DrainBowlsand Drier/Filtersarereplaced.
3:AttemptedrepairsoradjustmentsbyanypersonorCompanynotauthorizedor
recognizedby TENAutomotiveEquipmentLimited
4:If theauthorizedrepresentativeofTENAutomotiveEquipmentLimitedhasbeen
refused,orisunabletoaccess theequipmentbetweenthehoursof09:00 hrsto
17:30 hrs,MondaytoFridayinclusive.Inordertofollowupa“Requestfor
Service”undertheWarrantyAgreement.
5:IftheEquipmenthasnotbeenservicedorcalibratedby anAuthorized
RepresentativeofTENAutomotiveEquipmentLimitedataprearrangedinterval
necessarytocomplywithanEUDirectiveorany otherApprovalBody
mandatoryrequirement.
6:If TENAutomotiveEquipmentLimitedisnotaffordedtheopportunityto
diagnoseorrectifythefault orconditionthroughsimplediagnosticroutinesor
instruction, bytelephone, totheoperatororowneroftheequipment.
4:WARRANTY
BacktoIndex

TENAutomotiveEquipmentLimited
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5:GLOSSARY OFTERMS
SYSTEM -N
2
PROorN2PRO-1234refrigerantrecovery, recycling and
recharging equipment.
SOURCETANK-Arefillabletankwithnewrefrigerantusedfortopping up the
internalWorkTank.
ELECTRONICSCALES-MeasurestheweightoftheWorkTankrefrigerant.
WORKTANK-Refillablerefrigerantinternalstoragetankinsidethesystem. Itis
usedtostorerefrigerantduringrecovery, andtorecyclerecovered
refrigeranttoSAE standard.Thetankhasthree outlets, gasoutlet,
liquidoutletandairdischargeoutlet.
6:CONTROLPANEL
Note:SomemodelshavethePrintermountedonthetopofthecabinet.
BacktoIndex

TENAutomotiveEquipmentLimited
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7:SYSTEM INITIALSETUP
BeforeusingtheSystemforthefirsttimethesysteminitialsetup ismustbecompleted.The
mainpurposeoftheinitialsetup is:
1ToensureVacuumPumpoilleveliscorrect.
2ToremoveNitrogenintheWorkTankandthesystem.
3ToprimeWorkTankwithfreshrefrigerant.
4PrinterSet-up andOperation(Optional)
BacktoIndex
7.1AddingRefrigeranttoWorkTank(firsttime)
STEP OPERATION OPERATING
INSTRUCTION
SCREENDISPLAY
1
Turnthepowerswitchon.
EnsureVacuumpumpoillevelis
sufficient.
Oilshouldbeattheindicatedlevel
ofsightglassonVacuumPump.
CLEAR
2
Press STARTkeytobeginthe
initializationprocess Thescreenwill
flash:PLEASEWAIT.
PLEASEWAIT
3
Ifusedforthefirsttimethesystem
willautomaticallyremoveNitrogen
intheWorkTankandinternalsystem.
Thiswilltakeabout4minutesandthe
systemwillfinishtheinitialization
process automatically.
PLEASEWAIT
4
Aftertheinitializationprocess, the
systemwillautomaticallydisplay:
WEIGHTxx.xx(orSystemStandby
mode). Nownewrefrigerantneedsto
beaddedtotheWorkTank.
WEIGHT00.00kg

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5.
1. Connectthelowpressuremale
adaptortotherefrigerantsource
tank.
2. Connectthelowpressure“quick
coupler”tothemaleadaptor.
3. Opensource tankvalveandBlue
“quickcoupler”valve.
4. Press theRecoverKey
RECOVER10.00kg
Note:10.00kg istheamountof
refrigerantthattheWorkTank
cancontain.
Ifmaleadaptorisnotavailable
useasuitablealternative
coupling toconnectlowpressure
hosetosourcetank.
6
Press theSTARTkeytobeginthe
refrigerantfilling process.
PleaseensurethatSource tankand
bluequickcouplervalvesareopen.
RECOVER00.00kg
7
Whenadding refrigeranttoWork
Tankthedisplayedamountwill
increase.
Note:Turnsource tankupsidedown
toincreaseflow,ifrequired.
RECOVER xx.xx kg
8
Suggestedweightofrefrigerant
addingtoWorkTankforthefirst
timeis3to4kg.
IMPORTANT:Whenthedisplayed
weightisapproximately3to4kg,
closesource tankvalveandblue
quickcouplervalve.
DONOTPRESSSTOPBUTTON!!
Whenpressuredecreasesto0PSI,
systemwillautomaticallycomplete
recoveryprocess.
RECOVER xx.xx kg
IMPORTANT:Whenfilling the
WorkTank DONOTLEAVE
THESYSTEMUNATTENDED.
ALWAYS TURN OFFSOURCE
TANKVALVEFIRST!!
9
Thescreenwilldisplaytheweightof
therefrigerantaddedtoWorkTank
andthenenterthedrainA/Csystem
oilprocess.
Waitfor10 seconds, systemwill
automaticallydraintheA/Csystem
oilseparatedfromrefrigerant.
RECOVER xx.xx kg
DRAINOIL

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1、Draining oiltakesabout10
secondsandaftertheprocess
willstopautomatically.
2、Checkoillevelinthedrainoil
bottle, whenoilhasfinished
draining out, press STOPtoexit.
DRAINOIL
11
SystementersintoSystemStandby
1. xx.xxkg istheweightofthe
refrigerantintheWorkTank.
2. TurnSource Tankoff and
RemoveBluequickcoupler.
3.
Connectquickcouplertoits
holding portonsideofunit.
WEIGHTxx.xx kg
12
Initialsetupisnowcomplete.
IMPORTANT:Forthenormaloperationofthesystem, theweightoftherefrigerantinthe
WorkTankshouldnotbeless than2.5kg.
BacktoIndex
7.2Printerset-upandoperation(optional)
STEP OPERATE
OPERATING
DESCRIPTION DISPLAYCONTENT
1
Turnthepowerswitchon.
Nowthesystementersintosystem
self-checking state.Program
softwareversionisdisplayed.
VERSION x.xx
2 After3seconds, thesystemwill
display:WEIGHTxx.xx kg
3
InputCompanyName:
atSystemStandby;
Keyinputcode: 6845
Co.

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4
EnterCompanyNameusing
and keystochange
betweenupperandlower-case.
Press todeletecharacter.
TENAutomotiveEqu
Note:Max. 36Characters.
Keyboardoperation issimilartothatof
amobilephone.
5
AfterimputingCompanyName,
press STARTtoconfirm.The
Companynamewill bestored. WEIGHTxx.xx kg
6
InputCompanyTelephoneNo:
AtSystemStandby;
Keyinputcode:6302 Tel:
7
EnterCompanyTelephonenumber;
use todelete. 01553764900
8
Afterinput, press STARTto
confirm, CompanyTelephone
numberwillbestored. WEIGHTxx.xx kg
9
OPERATION:
Press PRINT,Thescreenwill
alternatelyshowTechnicianand
nameoftheprevious Technician(if
applicable).
1、Ifyouwishtousethe
Techniciannamealreadyin
memory, pleasegotostep11.
2、Toinputorchangethenameof
thetechnician, pleasegotonext
step,thenewnamewill be
saved.
Technician:
XXXXXX

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10
InputnameofTechnician:
Use and tochange
betweenupperandlower-case.
Usetodelete.
XXXXXX ----
11
Press START
ThescreenwillshowVehicleReg:
1. Ifyoudon’twishtoinput
vehicleregistrationnumber,
pleasegotostep13.
2. Ifyouwanttoprintvehicle
registrationnumber, please
carryoutnextstep.
Note:thisnumberwillnotbesaved.
VehicleReg:
--------
12
InputVechicleRegistrationnumber:
(ifrequired)
Use and tochange
betweenupperandlower-case.
Use todeletecharacter.
--------
13
Afterinput, press STARTtoprint.
Note:Ifyouwishtoprinta
duplicatereport,press PRINTagain.
PRINTOK
14
IMPORTANT:
Ifyoupress STOP, previous
recordedinformationwillbedeleted
WEIGHTxx.xx kg

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8:OPERATION
8.1Recoverrefrigerantanddraining A/Csystemoil
STEP OPERATION OPERATING
INSTRUCTION
SCREENDISPLAY
1
Turnmainspowerswitchon.
Nowthesystementersintosystem
self-checking stateanddisplays
softwareversion.
VERSION x.xx
2
After3seconds, thesystemwill
displaytheweightofrefrigerantin
theWorkTank.
Connectredand/orbluequick
couplerstohighandlowpressure
hosesofthevehicleA/Csystem
andopencouplervalves.
WEIGHTxx.xx kg
3
IMPORTANT:Checkgaugesfor
vehicleA/Coperatingpressure.
Ifzeropressureisdisplayedthen
checkthevehicleA/Csystemfor
leaksfirst.
Note:TheVACUUMHOLDtest
isavisualcheckusingtheGauges
tolookforvacuumdecay. Itis
recommendedthattheNitrogen
PressureTestisusedforleak
detection.
WEIGHTxx.xx kg
4
Press RECOVERkeytoenterinto
recoveryprocedure.
xx.xxkg isreadingofheadroom
leftinWorkTank.
RECOVER xx.xx kg
5
Press theSTARTkeytobegin
recovery.Whenthepressureinthe
vehicleA/Csystemislowerthan0
kpa,thesystemwillautomatically
completerecoveryprocess.
RECOVER xx.xx kg

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6
Thescreenwilldisplaytheweight
oftherefrigerantaddedtoWork
Tankandandthenenterthedrain
A/Csystemoilprocess.
Waitfor10 seconds, systemwill
automatically drainthevehicleA/C
systemoil separatedfrom
refrigerant.
RECOVER xx.xx kg
DRAINOIL
7
1. Draining A/Csystemoiltakes
about10secondsthenstop
automatically.
2. Checklevelinthedrainoil
bottle, whenoilhasfinished
draining theprogramwill
automaticallystop.
3. Theamountofoildrainedthis
timeshouldbenoted.
Youwill bepromptedtoadd A/C
systemoil aftervacuuming is
complete. Add therequired
amountspecifiedbythevehicle
manufacturer.
DRAINOIL
8
Press theSTOPkeytogobackto
SystemStandby.
WEIGHTxx.xx kg
IMPORTANT:
Therecommendedfilter-driercapacityofthissystemis68kg, whenrecoveredrefrigerant
weightreachesthispointthedisplaywillread:
Nowfilter-drierisnolongereffective, andneedstobereplacedotherwisedamagemayoccur.
(Pleasereferto 9.2 fordetails).
Theself-cleaningprocedurewillrecovertherefrigerantintheservice hoseintotheWork
Tank.Thisprocess willensurethemeasurementaccuracyofrefrigerant.BacktoIndex
CHANGEFILTER

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8.2VacuumA/Csystemand injectnewoil
STEP OPERATION OPERATING
INSTRUCTION
SCREENDISPLAY
1
Turnthepowerswitchon
SystemStandbywilldisplay
after3seconds.
WEIGHTxx.xx kg
2
IMPORTANT:
IfthepressureinthevehicleA/C
systemishigherthan0kpa, screen
willdisplayHIGH PRESSURE.
Theoperatorshouldcheckthe
Gaugestoconfirmsystempressure.
Itisrecommendedthattheoperator
repeats therecoveryprocess.
Aftertherecoveryprocess has
automaticallycompletedthe
pressureshouldbezeroandthe
vacuuming process canthenbe
carriedoutnormally.
PRESSUREINHOSE
VACUUM15:00
3
Press Numberkeystoset
Vacuumtime.
Press theSTARTkeytobegin
thevacuuming process.
VACUUMxx.xx
4
Vacuumprocess (andLPKeepingif
selected)iscomplete.
INJECTOIL
5
Ensurethecorrectandsufficientoil
isintheINJECTEDOILbottle.
Press OILbuttontoinjectthe
amountofnewoil requiredforthe
vehicle’sA/Csystem.
INJECTOIL

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6
1. Afterfinishing oil injection,
press STOPtoenterintoSystem
Standby.
2. Checkpressuregaugetosee if
vehicleA/Chasanyleakage,if
required.
3. Nowpress theCHARGE keyto
chargerefrigeranttothevehicle
A/Csystem.
WEIGHTxx.xx kg
IMPORTANT:
1) Ifthevacuumpumprunning timeaccumulatesto1000 minutes, thesystemwill
display:CHANGE OIL.
Thevacuumpumpoil shouldbereplaced.
Pleaserefertosection 9.4 fordetails. Ifvacuumpumpoil isnotreplacedatthe
recommendedtime, thevacuumpumpmayincurdamaged.
2) IfA/Csystempressureishigherthan50kpa(0.5kg), donotvacuumvehicleA/C
systemotherwisethevacuumpumpmayincurdamaged.
BacktoIndex
8.3RechargingA/Csystems
STEP OPERATION OPERATING
INSTRUCTION
SCREENDISPLAY
1
1. Press CHARGE keytoenterinto
refrigerantrechargingprocedure.
2. Usevaluekeystosettheweightof
therefrigerant,specifiedbythe
vehiclemanufacturer, tochargethe
vehicle’sA/Csystem.
Note: TheWorkTankmustcontainat
least1.2kgmorethanthechargeweight
entered. Ifnot,theerrormessageTANK
EMPTY?willbedisplayed.
Press STOPtoexitprogramandadd
refrigeranttoWorkTank(Referto 8.5).
TANKEMPTY?
CHANGEOIL

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2
1. Press CHARGE keytoenterinto
refrigerantrechargingprocedure.
2. Usevaluekeystosettheweightof
therefrigerantneededtobe
rechargedtovehicleA/Csystem.
CHARGE00.90kg
3
Selectcharging port. Forlowpressure
charge(default)press STARTto
confirm, orpress “up”or“down”keys
(or▼)toselecthighand/orlow
pressurechargeportmode.
LPCHARGE
4
Afterselectinghighand/orlowpressure
chargemode, press STARTtoconfirm.
LP. HPCHARGE
5
Press STARTtobeginthe
refrigerantrechargingprocedure.
CHARGE00.00kg
6
Whenrefrigerantrechargingreachesthe
setvalueweighttheSystemwill stop
automaticallyandindicatesthecharge
amountresultatthesametime.
CHARGExx.xxkg
CHARGECOMPLETE
7
Press theSTOPkeyfor3 secondstoendthe
rechargingprocess and returntoSystem
Standby.
StarttheVehicleA/Csystem;checkthehigh
and lowpressuregaugestoseeifthereadings
arenormal.
Close“quickcoupler”valvesand
recoverrefrigerantfromhoses.
Disconnecthighandlowquick
couplers.
IMPORTANT:Donotexitthe
programorpress stopduringhose
refrigerantrecoveryprocedure.
WEIGHTxx.xx kg

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IMPORTANT:
Ifthesystemdisplays TANKEMPTYwhenyoupress
theCHARGE keythenthereisinsufficientrefrigerantintheWorkTanktochargethevehicle
A/Csystem. Press theSTOPkeytoexittherechargingprocess andadd refrigeranttothe
WorkTank. (Refertosection 8.5 fordetails).
BacktoIndex
8.4Hoserecoveryandsystemself-cleaning
STEP OPERATION OPERATING
INSTRUCTION
SCREENDISPLAY
1
Turnthepowerswitchon.
FromSystemStandby:
1. Makesurethathighandlow
quickcouplersarenotconnected
tovehicle.
2. Ensurethatthehighandlow
quickcouplervalvesareclosed.
WEIGHTxx.xx kg
2
Press theRECOVERkeytoenter
intorecoveryprocedure.
xx.xxkg isreadingof“headroom”
leftinWorkTank.
RECOVER xx.xx kg
3
Press theSTART tobeginhose
recoveryorself-cleaning.
Checkpressuregauge
Whenthepressureislowerthan
0kpa, systemwillautomatically
completetheprocess.
RECOVER xx.xx kg
4
Thescreenwilldisplaytheweightof
therefrigerantrecoveredfromhoses
andproceedtodischargeoldA/C
systemoil andcontaminants.
RECOVER xx.xx kg
DRAINOIL
5
WhenDrainOil iscompletepress
STOPkeydownfor3secondstogo
backtoSystemStandby.Hose
recoveryandsystemself-cleaning is
complete.
WEIGHTxx.xx kg
TANKEMPTY

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8.5Addingrefrigeranttoworktank
STEPOPERATION OPERATING
DESCRITION SCREENDISPLAY
1
Turnthepowerswitchon.
Nowthesystementersintosystem
self-checking stateanddisplays
softwareversion.
VERSION:x.xx
2
1、ConnecttheLowPressuremale
adaptortotherefrigerantsource
tank
2、Connectthelowpressure“quick
coupler”tothemaleadaptor
3、Opensource tankvalveandblue
“quickcoupler”valve
4、Turnsource tankupsidedownto
increaseflow,ifrequired.
WEIGHTxx.xx kg
3
Press RECOVERkeytoenterinto
refrigerantaddingprocedure
xx.xxkg istheamountofrefrigerant
headroomtheWorkTankcan
contain.
RECOVER xx.xx kg
4
1. Press STARTtobeginthe
refrigeranttopupprocess.
Suggestedweightofrefrigerant
storedinWorkTankis3to4kg.
IMPORTANT:Whenthedisplayed
weightisapprox3to4kg closethe
source tankvalveandbluequick
couplervalve.
DONOTPRESSSTOPBUTTON
Whenpressuredecreasesto0PSI
thesystemwillautomatically
completerecoveryprocess.
RECOVER xx.xx kg
IMPORTANT:Whenfilling
theWorkTank DONOT
LEAVETHESYSTEM
UNATTENDED.ALWAYS
TURN OFFSOURCETANK
VALVEFIRST!!

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5
1. Thescreenwilldisplaythe
weightoftherefrigerant
transferredtotheWorkTank
andandthenenterthedrainoil
process.
2. Waitfor10 seconds,thesystem
willautomaticallydrainany
A/Csystemoilorcontaminants
separatedfromtherefrigerant.
RECOVER xx.xx kg
DRAINOIL
6
1. Draining oiltakesabout10
secondsandafteritwillstop
automatically.
2. Checkoillevelinthedrainoil
bottleandemptyifrequired.
DRAINOIL
7 Press theSTOPtoreturntoSystem
Standby.
WEIGHTxx.xx kg
BacktoIndex
8.6 FullyAutomaticOperation
STEP OPERATION OPERATING
DESCRITION SCREENDISPLAY
1
Turnthepowerswitchon.
Nowthesystementersintosystem
self-checking stateandsoftware
versionisdisplayed.
VERSION x.xx
2
After3seconds, thesystemwill
displayamountofrefrigerantinWork
Tank.
ConnectRedandBluequickcouplers
tohighandlowpressureportsofthe
vehicleA/Csystemandopencoupler
valves.
IfApplicable;connectN2hose
(yellow)totheNitrogensource
cylinder. OpenNitrogensource
valve.TheNitrogenpressureshould
begreaterthan10 barorthesystem
willnotbeabletofunction.
WEIGHTxx.xx kg
IMPORTANT:
EnsuretheINJECTEDOIL
bottleshouldcontainnoless
than30ml ofthecorrectoil.

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3
Press START, toprogramthe
functionsequence selection.
Note:TheFullyAutomaticsequence
ofoperatingfunctionsmaynowbe
programmedusing thenumberkeys
0throughto7.
Pleaserefertofunctionchartbelow
keypadonunitfrontpanel.
SELECTFUNCTION
4
Press numberkey1. Recovery
functionwillbechosen.
Press numberkey1again;Recovery
functionwillbecancelled.
R
5
Press numberkey2. Nitrogen
pressuretestwillbeselected.
Press numberkey2again;nitrogen
pressuretestwillbecancelled.
R-N2
R
6
Press numberkey3.Vacuum
functionwillbechosen.
Press numberkey3again;vacuum
functionwillbecancelled.
R-N2-V
R-N2
7
Press numberkey4, vacuumhold
timewillbechosen.
Press numberkey4again;vacuum
hold willbecancelled.
NOTE:ThisisaPressureGauge
Checkonly.
R-N2-V-VH
R-N2-V
8
Press numberkey5. OilInjection
willbeselected.
Press numberkey5again;Oil
Injectionwillbecancelled.
R-N2-V-VH-I
R-N2-V- VH
9
Press numberkey6. Highandlow
pressureportrefrigerantcharging
willbeselected.
Press numberkey6again;highand
lowpressurerefrigerantchargingwill
becancelled.
R-N2-V- VH -I-C
R-N2-V- VH -I