Split-type Air-ConditionerMXZ-6E120VAD

EnglishInstallation Manual For INSTALLER• This manual only describes the installation of outdoor unit. When installing the indoor unit, refer to the installation manual of indoor unit.

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1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY• Besuretoread“THEFOLLOWINGSHOULDALWAYSBEOBSERVEDFORSAFETY”beforeinstallingtheairconditioner.• Besuretoobservethewarningsandcautionsspecifiedhereastheyincludeimportantitemsrelatedtosafety.• Afterreadingthismanual,besuretokeepittogetherwiththeOPERATINGINSTRUCTIONSforfuturereference.• EquipmentcomplyingwithIEC/EN61000-3-12.

1-2. SPECIFICATIONS

Model

Powersupply*1 Wirespecifications*2 Pipelengthandheightdifference*3,*4,*5,*6,*7,*8

Rated Voltage

Fre-quency

Breakercapacity

Powersupply

Indoor/outdoorconnectingwire

Max.pipelengthper

indoorunit/formulti-system

Max. height difference*9

Max. no. of bends perindoorunit/for multi system

Refrigerant adjustment

A*10

MXZ-6E120VAD 230V 50Hz 32A 3-core 4.0mm2

4-core 1.0/1.5mm2 25m/80m 15m 25/80 20g/m

*1 Connecttothepowerswitchwhichhasagapof3mmormorewhenopentointerruptthesourcepowerphase.(Whenthepowerswitchisshutoff,itmustinterruptallphases.)

*2 Usewiresinconformitywithdesign60245IEC57.Usetheindoor/outdoorconnectingwireinconformitywiththewirespecificationsspecifiedintheinstallation manual of the indoor unit.

*3 Neverusepipeswiththicknesslessthanspecified.Thepressureresistancewillbeinsufficient.

*4 Useacopperpipeoracopper-alloyseamlesspipe.*5 Becarefulnottocrushorbendthepipeduringpipebending.

*6 Refrigerantpipebendingradiusmustbe100mmormore.*7 Insulationmaterial:Heatresistingfoamplastic0.045specificgravity*8 Besuretousetheinsulationofspecifiedthickness.Excessivethickness

maycauseincorrectinstallationoftheindoorunitandinsufficientthicknessmaycausedewdrippage.

*9 If the outdoor unit is installed higher than the indoor unit, max. height differenceisreducedto10m.

*10 Ifpipelengthexceeds30m,additionalrefrigerant(R410A)chargeisre-quired.(Noadditionalchargeisrequiredforpipelengthlessthan30m.)

Additionalrefrigerant=A×(pipelength(m)-30)

Required Tools for InstallationPhillipsscrewdriverLevelScaleUtilityknifeorscissorsTorquewrenchWrench(orspanner)4mmhexagonalwrench

FlaretoolforR410AGaugemanifoldforR410AVacuumpumpforR410AChargehoseforR410APipecutterwithreamer

EN

GLI

SH CONTENTS

1.BEFOREINSTALLATION ............................................................ 12.OUTDOORUNITINSTALLATION ...............................................43.FLARINGWORKANDPIPECONNECTION ...............................54.PURGINGPROCEDURES,LEAKTEST,ANDTESTRUN .........55.PUMPINGDOWN ........................................................................7

CAUTION (Couldleadtoseriousinjuryinparticularenvironmentswhenoperatedincorrectly.)

n Do not install the unit by yourself (user). Incompleteinstallationcouldcausefireorelectricshock,injuryduetotheunit

falling,orleakageofwater.Consultthedealerfromwhomyoupurchasedtheunitoraqualifiedinstaller.

n Perform the installation securely referring to the installation manual. Incomplete installationcouldcausefire,electricshock, injuryduetothe

unitfalling,orleakageofwater.n When installing the unit, use appropriate protective equipment and

tools for safety. Failure to do so could cause injury.n Install the unit securely in a place which can bear the weight of the

unit. Iftheinstallationlocationcannotbeartheweightoftheunit,theunitcould

fall causing injury.n Electrical work should be performed by a qualified, experienced electri-

cian, according to the installation manual. Be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit.

If the capacity of thepower circuit is insufficient or there is incompleteelectricalwork,itcouldresultinafireoranelectricshock.

n Do not damage the wires by applying excessive pressure with parts or screws.

Damagedwirescouldcausefireorelectricshock.n Be sure to cut off the main power in case of setting up the indoor P.C.

board or wiring works. Failuretodosocouldcauseelectricshock.n Use the specified wires to connect the indoor and outdoor units

securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections. Do not extend the wires, or use intermediate connection.

Incompleteconnectingandsecuringcouldcausefire.n Do not install the unit in a place where inflammable gas may leak. Ifgasleaksandaccumulatesintheareaaroundtheunit,itcouldcausean

explosion.n Do not use intermediate connection of the power cord or the extension

cord and do not connect many devices to one AC outlet. Itcouldcauseafireoranelectricshockduetodefectivecontact,defective

insulation,exceedingthepermissiblecurrent,etc.n Be sure to use the parts provided or specified parts for the installation

work. Theuseofdefectivepartscouldcauseaninjuryorleakageofwaterdue

toafire,anelectricshock,theunitfalling,etc.n When plugging the power supply plug into the outlet, make sure that

there is no dust, clogging, or loose parts in both the outlet and the plug. Make sure that the power supply plug is pushed completely into the outlet.

Ifthereisdust,clogging,orloosepartsonthepowersupplyplugortheoutlet,itcouldcauseelectricshockorfire.Ifloosepartsarefoundonthepowersupplyplug,replaceit.

n Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.

Iftheelectricalcoveroftheindoorunitand/ortheservicepaneloftheoutdoorunitarenotattachedsecurely,itcouldresultinafireoranelectricshockduetodust,water,etc.

n When installing, relocating, or servicing the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit.

Anypresenceofforeignsubstancesuchasaircancauseabnormalpres-sureriseandmayresultinexplosionorinjury.Theuseofanyrefrigerantother than thatspecified for thesystemwillcausemechanical failure,systemmalfunction,orunitbreakdown.Intheworstcase,thiscouldleadtoaseriousimpedimenttosecuringproductsafety.

n Do not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room.

Ifrefrigerantcomesincontactwithafire,harmfulgascouldbegenerated.n Check that the refrigerant gas does not leak after installation has

been completed. Ifrefrigerantgasleaksindoors,andcomesintocontactwiththeflameofa

fanheater,spaceheater,stove,etc.,harmfulsubstanceswillbegenerated.n Use appropriate tools and piping materials for installation. ThepressureofR410Ais1.6timesmorethanR22.Notusingappropriate

toolsormaterialsandincompleteinstallationcouldcausethepipestoburst or injury.

n When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

Iftherefrigerantpipesaredisconnectedwhilethecompressorisrunningandthestopvalveisopen,aircouldbedrawninandthepressureintherefrigeration cycle could become abnormally high. This could cause the pipestoburstorinjury.

n When installing the unit, securely connect the refrigerant pipes before starting the compressor.

Ifthecompressorisstartedbeforetherefrigerantpipesareconnectedandwhenthestopvalveisopen,aircouldbedrawninandthepressurein the refrigeration cycle could become abnormally high. This could cause thepipestoburstorinjury.

n Fasten a flare nut with a torque wrench as specified in this manual. Iffastenedtootight,aflarenutmaybreakafteralongperiodandcause

refrigerantleakage.n The unit shall be installed in accordance with national wiring regula-

tions.n Earth the unit correctly. Donotconnecttheearthtoagaspipe,waterpipe,lightningrodortel-

ephoneearth.Defectiveearthingcouldcauseelectricshock.n Be sure to install an earth leakage breaker. Failuretoinstallanearthleakagebreakermayresultinelectricshockorfire.

n Perform the drainage/piping work securely according to the installation manual.

Ifthereisdefectinthedrainage/pipingwork,watercoulddropfromtheunit,soakinganddamaginghouseholdgoods.

n Do not touch the air inlet or the aluminum fins of the outdoor unit. This could cause injury.

n Do not install the outdoor unit where small animals may live. Ifsmallanimalsenterandtouchtheelectricpartsinsidetheunit,itcould

causeamalfunction,smokeemission,orfire.Also,adviseusertokeepthe area around the unit clean.

WARNING (Couldleadtodeath,seriousinjury,etc.)

1. BEFORE INSTALLATION

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1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTSIfthediameterofconnectionpipedoesnotmatchtheportsizeofoutdoorunit,useoptionaldifferent-diameterjointsaccordingtothefollowingtable.

Portsizeofoutdoorunit Optionaldifferent-diameterjoints(portsizeofoutdoorunit→diameterofconnectionpipe)

MXZ-6E Liquid/Gas 6.35(1/4)→9.52(3/8):PAC-493PI9.52(3/8)→12.7(1/2):MAC-A454JP9.52(3/8)→15.88(5/8):PAC-SG76RJ12.7(1/2)→9.52(3/8):MAC-A455JP12.7(1/2)→15.88(5/8):MAC-A456JP

Refertotheinstallationmanualofindoorunitforthediameterofconnectionpipeofindoorunit.

AUNIT 6.35(1/4)/12.7(1/2)

B-FUNIT 6.35(1/4)/9.52(3/8)

1-4. SELECTING THE INSTALLATION LOCATION• Whereitisnotexposedtostrongwind.• Whereairflowisgoodanddustless.• Whererainordirectsunshinecanbeavoidedasmuchaspossible.• Whereneighboursarenotannoyedbyoperationsoundorhotair.• Whererigidwallorsupportisavailabletopreventtheincreaseofopera-

tionsoundorvibration.• Wherethereisnoriskofcombustiblegasleakage.• Wheninstallingtheunit,besuretosecuretheunitlegs.• Whereitisatleast3mawayfromtheantennaofTVsetorradio.Opera-

tionoftheairconditionermayinterferewithradioorTVreceptioninareaswherereceptionisweak.Anamplifiermayberequiredfortheaffecteddevice.

• Installtheunithorizontally.• Pleaseinstallitinanareanotaffectedbysnowfallorblowingsnow.In

areaswithheavysnow,pleaseinstallacanopy,apedestaland/orsomebaffleboards.

Note:It isadvisable tomakeapiping loopnearoutdoorunitsoas to reducevibrationtransmittedfromthere.

Note: Whenoperatingtheairconditionerinlowoutsidetemperature,besuretofollowtheinstructionsdescribedbelow.• Neverinstalltheoutdoorunitinaplacewhereitsairinlet/outletside

maybeexposeddirectlytowind.• Topreventexposuretowind,installtheoutdoorunitwithitsairinlet

sidefacingthewall.• Topreventexposuretowind,itisrecommendedtoinstallabaffleboard

on the air outlet side of the outdoor unit.Avoidthefollowingplacesforinstallationwhereairconditionertroubleis liable to occur.• Whereflammablegascouldleak.• Wherethereismuchmachineoil.• Saltyplacessuchastheseaside.• Wheresulfidegasisgeneratedsuchashotspring,sewage,waste

water.• Wherethereishigh-frequencyorwirelessequipment.• WherethereisemissionofhighlevelsofVOCs,includingphthalate

compounds,formaldehyde,etc.,whichmaycausechemicalcracking.

(Unit:mm(inch))

3. Obstacles in front (blowing) onlyWhen there is an obstacle in front of theunitasshowninthefigure,openspaceabove,behind,andonthesidesoftheunitisrequired.

2. Front (blowing) side openAs long as space indicatedin the figure is provided, itis allowed to install the unitwhere obstacles are behindand on the sides of the unit. (Noobstacleabovetheunit)

FREE SPACE REQUIRED AROUND OUTDOOR UNIT

500ormore

200ormore

350ormore100ormore

1. Obstacles aboveWhen there is no obstacle in front and onthesidesof theunit, it isallowedtoinstalltheunitwhereanobstacleisabovetheunitonlyifthespaceshowninthefigureisprovided.

100ormore

500ormore

100ormore

Servicespace

350ormore350ormore

6. Service spaceProvidespaceforserviceandmaintenanceasshowninthefigure.

500ormore

100ormore

• Wheninstallingtheunitinanareathatisenclosedwithwallssuchasaverandah,besuretohaveenoughspaceasshownbelow.

Inthiscase,theairconditioningcapacityandpowerconsumptionmight deteriorate.

• Whenthereisalackofairfloworthereisapossibilityofbecomingshortcycle,installanoutletguideandmakesurethereisenoughspacebehindoftheunit.

• Wheninstallingtwoormoreunits,donotinstalltheunitsinfrontorbehind each other.

100ormore

200ormore

350ormore

500ormore 500ormore

(Unit:mm)

5. Obstacles in front, behind and on side(s)

4. Obstacles in front and behindThe unit can be used by at-tachinganoptionaloutdoorblowingguide(PAC-SH96SG-E)(butbothsidesandtopareopen).

100ormore

500ormore

Blowingguide(PAC-SH96SG-E)

Heightoftheobstacleis1200orless

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1-5. INSTALLATION DIAGRAM

Unitsshouldbeinstalledbylicensedcontractoraccordingtolocalcoderequirements.

After the leak test, apply insulat-ing material tightly so that there isnogap.

ACCESSORIESCheckthefollowingpartsbeforeinstallation.(1) Drainsocket 1(2) Draincap 5

PARTS TO BE PROVIDED AT YOUR SITE(A) Powersupplycord* 1(B) Indoor/outdoorunitconnectingwire* 1(C) Extensionpipe 1(D) Wallholecover 1(E) Pipingtape 1

(F)Extension drain hose (orsoftPVChose,15mminnerdiameterorhardPVCpipeVP16)

1

(G) Refrigeration oil Little amount

(H) Putty 1(I) Pipefixingband 2to7(J) Fixingscrewfor(I) 2to7(K) Wallholesleeve 1

(L)SoftPVChose,15mminnerdiameterorhardPVCpipeVP16fordrainsocket(1)

1

* Note:Place indoor/outdoor unit connectingwire (B) andpowersupplycord(A)at least1maway fromtheTVantennawire.

The“Q’ty”for(B)to(K)intheabovetableisquantitytobeusedperindoorunit.

More than 100mm

OpenasaruleMorethan500mmif the front and both sidesareopen

Morethan100mmMorethan200mmifthereareobstacles to both sides

OpenasaruleMorethan500mmiftheback,bothsidesandtopareopen

Morethan350mm

Outdoor unit installation

Air inlet

Air outlet

Air inlet

950mm

600mm175mm

2-U-shapenotchedholes(BaseboltM10)

330mm

2-12mm×36mm ovalholes(BaseboltM10)

370mm

417mm

Whenthepipingistobeattachedtoawallcontainingmetals(tinplated)or metal netting, use a chemically treatedwooden piece 20mm orthicker between thewall and thepipingorwrap7to8turnsofinsula-tionvinyltapearoundthepiping.To use existing piping, performCOOL operation for 30minutesandpumpdownbefore removingtheoldairconditioner.Remakeflareaccordingtothedimensionfornewrefrigerant.

1-6. DRAIN PIPING FOR OUTDOOR UNIT1) Performthedrainpipingworkonlywhendrainingfromoneplace.2) Providedrainpipingbeforeindoorandoutdoorpipingconnection.3) Attachthedrainsockettooneoftheseveraldrainholes. Fixthedrainsocketintothedrainholeofthebaseusingthecatchestosecureitin

place.4) ConnectthesoftPVChoseI.D.15mmasshownintheillustration.5) Makesuretoprovidedrainpipingwithadownhillgradeforeasydrainflow.6) Gluethedraincapstoclosealltheotherunnecessaryholeswiththeglue(Prepare

inthefield).

Note:Applythegluesecurely,astheglue(Prepareinthefield)willworkassealtopreventwaterfromleaking.Usetheadhesivefortherubberandmetal.

AttentionTheoutdoorunit is providedwith several holes for drainageat thebottom tomakedrainage easier. Thedrainsocketisusedtoclosetheunnecessaryholesandcentralizethedrainagewhenusingthedraintubeattheinstallationplace.Donottousethedrainsocketincoldregion.Thedraintubecanbefrozen.

(1)Drainsocket(L)SoftPVChose

(2)Draincap

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A B C

D E F

A B C

D E F

A B C

E F

A B C

D E F

A B C

D D E F

DRDRDRDRDRP P P P P

2-1. INSTALLING THE UNIT

FixherewithM10bolts.

Makethesettingdepthdeeper.

Makewidthwider.

Anchor leg

25orless

Anchor bolt length Anchorboltpitch

(Unit:mm)

2-2. CONNECTING WIRES FOR OUTDOOR UNIT Terminalblock forpowersupply

• Besuretofixtheunit’slegswithboltswheninstallingit.• Besuretoinstalltheunitfirmlytoensurethatitdoesnotfallbyanearthquakeoragust.• Refertothefigureintherightforconcretefoundation.• Donotusethedrainsocketandthedraincapsinthecoldregion. Drainmayfreezeanditmakesthefanstop.• Removethetapeonthepanelwhenopeningthepackage.(DONOTremovetheLABELSonthepanel.)

1)Removetheservicepanel.2)Loosenterminalscrew,andconnectindoor/outdoorunitconnectingwire

(B)fromtheindoorunitcorrectlyontheterminalblock.Becarefulnottomakemis-wiring.Fixthewiretotheterminalblocksecurelysothatnopartofitscoreisappeared,andnoexternalforceisconveyedtotheconnectingsectionoftheterminalblock.

3)Firmlytightentheterminalscrewstopreventthemfromloosening.Aftertightening,pullthewireslightlytoconfirmthattheydonotmove.

4)Perform2)and3)foreachindoorunit.5)Connectpowersupplycord(A).6)Fixindoor/outdoorunitconnectingwire(B)andpowersupplycord(A)

withthecableclamps.7)Closetheservicepanelsecurely.Makesurethat3-2.PIPECONNEC-

TIONiscompleted.• Aftermakingconnectionsbetweenbothpowersupplycord(A)andindoor/outdoorunitconnectingwire(B),besuretofixbothcableandwirewithcableclamps.

Connectingorder• Connect the terminal block in

followingorder. A→B→C→D→E→F→P→DR

Terminalblockforindoor/outdoorunit

Cableclamps

600

370

Servicepanel Screws

Note:• Removingthehandleincreasestheeffectivenessofthewiringoperation.• Besuretoreinstallthehandle.

2. OUTDOOR UNIT INSTALLATION

Terminalblock forDREDInterface

DREDInterfacePowersupply

35mm15mm

Leadwire

• Besuretoattacheachscrewtoitscorrespondentterminalwhensecuringthecordand/orthewiretotheterminalblock.

• Makeearthwirealittlelongerthanothers.(Morethan35mm)• Forfutureservicing,giveextralengthtothecon-

nectingwires.

1 2 3 C

<OUTDOORUNIT>

Indoor/outdoorunitconnectingwire

<INDOORUNIT>

Terminalblock

Terminalblock Terminalblock

TerminalblockforpowersupplyTerminalblock

<INDOORUNIT>

POWERSUPPLY~/N230V50Hz

ThisunithasdemandresponsecapabilitywhichiscompliantwithAS/NZS4755.3.1.Toactivatethisfunction,youneedtomakeacontractwithremoteagentssuchaselectricsupplycompany,thenthisunitshouldbeconnectedtoDemandresponseenablingdevise(DRED).Forfurtherinformation,consultyourdealer.Thisunitsupports3DemandResponseModes(DRMs):DRM1,DRM2andDRM3.

CAUTION

•Topreventmalfunctioncausedbynoise,routethecordconnectingthisunittoDREDandthepowersupplycordasparallelaspossible.•Donotconnectthedemandcontroltransmissioncabletotheterminalblockforpowersupply.•Donotpull,extremelybendorapplystrongpressureonthewiretopreventfailure.•DonotscrewDREDtooutdoorunit.•DonotputDREDinoutdoorunit.•Secureelectricalwiringaboveclamp.•DonotgetDREDwirecaughtintheservicepanel.

1:DRM12:DRM23:DRM3C:COMMON

AS/NZS4755terminalblock

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Fig. 1 Fig.2

Fig.3 Fig.4

Fig.5 Fig.6

3-1. FLARING WORK

Pipediameter(mm)

Nut (mm)

A(mm) TighteningtorqueClutchtypetool forR410A

Clutchtypetool forR22

Wing nut typetool forR22

N•m kgf•cm

ø6.35(1/4”) 17

0to0.5 1.0to1.51.5to2.0

13.7to17.7 140to180ø9.52(3/8”) 22 34.3to41.2 350to420ø12.7(1/2”) 26

2.0to2.549.0to56.4 500to575

ø15.88(5/8”) 29 73.5to78.4 750to800

TiltedUnevenBurred

Good No good

Burr CopperpipeSparereamer

Pipecutter

Smooth all around

Evenlengthall around

Inside is shin-ingwithoutanyscratches.

Flare nut

DieCopperpipe

Clutchtype

Flaring tool

Wingnuttype

3-2. PIPE CONNECTION1)Applyathincoatofrefrigerationoil(G)totheflaredendsofthepipes

andthepipeconnectionsoftheoutdoorunit.Donotapplyrefrigerationoilonscrewthreads.Excessivetighteningtorquewillresultindamageonthescrew.

2)Alignthecenterofthepipewiththatofthepipeconnectionsoftheoutdoorunit,thenhandtightentheflarenut3to4turns.

3)Tightentheflarenutwithatorquewrenchasspecifiedinthetable.• Over-tighteningmaycausedamagetotheflarenut,resultinginrefriger-antleakage.

• Besuretowrapinsulationaroundthepiping.Directcontactwiththebarepipingmayresultinburnsorfrostbite.

3-3. INSULATION AND TAPING1)Coverpipingjointswithpipecover.2)Foroutdoorunitside,surelyinsulateeverypipingincludingvalves.3)Usingpipingtape(E),applytapingstartingfromtheentryofoutdoorunit.

• Stoptheendofpipingtape(E)withtape(withadhesiveagentattached).•Whenpipinghavetobearrangedthroughaboveceiling,closetorwherethetemperatureandhumidityarehigh,windadditionalcommerciallysoldinsulationtopreventcondensation.

Copperpipe

1)Cutthecopperpipecorrectlywithpipecutter.(Fig.1,2)2)Completelyremoveallburrsfromthecutcrosssectionofpipe.(Fig.3)

• Aimthecopperpipedownwardwhileremovingburrstopreventburrsfromdroppinginthepipe.

3)Removeflarenutsattachedtoindoorandoutdoorunits,thenputthemonpipehavingcompletedburrremoval.(Notpossibletoputthemonafterflaringwork.)

4)Flaringwork(Fig.4,5).Firmlyholdcopperpipeinthedimensionshownin the table. Select A mm from the table according to the tool selected.

5)Check• ComparetheflaredworkwithFig.6.• Ifflareisnotedtobedefective,cutofftheflaredsectionanddoflaringworkagain.

WARNINGWhen installing the unit, securely connect the refrigerant pipes before starting the compressor.

CAUTIONWhen there are the ports which are not used, make sure their nuts are tightened securely.

4-1. PURGING PROCEDURES AND LEAK TEST1)Removeserviceportcapofstopvalveonthesideoftheoutdoorunit

gaspipe.(Thestopvalvesarefullyclosedandcoveredincapsintheirinitialstate.)

2)Connectgaugemanifoldvalveandvacuumpumptoserviceportofstopvalveonthegaspipesideoftheoutdoorunit.

3)Runthevacuumpump.(Vacuumizeformorethan15minutes.)4)Checkthevacuumwithgaugemanifoldvalve,thenclosegaugemanifold

valve,andstopthevacuumpump.5)Leaveasitisforoneortwominutes.Makesurethepointerofgauge

manifoldvalveremainsinthesameposition.Confirmthatpressuregaugeshows-0.101MPa[Gauge](-760mmHg).

6)Removegaugemanifoldvalvequicklyfromserviceportofstopvalve.7)Fullyopenallstopvalvesonthegaspipeandtheliquidpipe.Operating

withoutfullyopeninglowerstheperformanceandthiscausestrouble.8)Referto1-2.,andchargetheprescribedamountofrefrigerantifneeded.

Besuretochargeslowlywithliquidrefrigerant.Otherwise,compositionoftherefrigerantinthesystemmaybechangedandaffectperformanceof the air conditioner.

9)Tightencapofserviceporttoobtaintheinitialstatus.10)Leaktest

StopvalveforGAS

Gaugemani-foldvalve(forR410A)

Compoundpressuregauge(forR410A)–0.101MPa

(–760mmHg)

HandleLow HandleHigh

Vacuumpump(forR410A)

Chargehose(forR410A)

*Close*Open

Hexagonalwrench

*4to5turns

Stopvalve forLIQUID

Pressuregauge(forR410A)

Precautionswhenus-ingthecontrolvalve

Whenattachingthecontrolvalvetotheserviceport,valvecoremaydeformorloosenifexcesspres-sureisapplied.Thismaycausegasleak.

Serviceport

Chargehose(forR410A)

Body CloseOpen

ControlvalveA

Whenattachingthecontrolvalvetotheserviceport,makesurethatthevalvecoreisinclosedposition,andthen tightenpartA.Donot tightenpartAor turnthebodywhenvalvecoreisinopenposition.

4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN

Stopvalvecap(Torque24.4to30.4N•m,250to310kgf•cm)

Serviceportcap(Torque10to12N•m,100to120kgf•cm)

Serviceportcap(Torque10to12N•m,100to120kgf•cm)

Stopvalvecap(Torque21.5to27.5N•m,220to280kgf•cm)

3. FLARING WORK AND PIPE CONNECTION

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4-3. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)

4-4. LOWERING THE OPERATION NOISE OF THE OUTDOOR UNIT

4-2. GAS CHARGEPerformgaschargetounit.1)Connectgascylindertotheserviceportofstopvalve.2)Performairpurgeofthepipe(orhose)comingfromrefrigerantgascylinder.3)Replenishspecifiedamountoftherefrigerant,whileoperatingtheairconditioner

for cooling.

Note:Incaseofaddingrefrigerant,complywiththequantityspecifiedfortherefrigerat-ing cycle.

CAUTION:Whenchargingtherefrigerantsystemwithadditionalrefrigerant,besuretouseliquidrefrigerant.Addinggasrefrigerantmaychangethecompositionoftherefriger-antinthesystemandaffectnormaloperationoftheairconditioner.Also,chargetheliquidrefrigerantslowly,otherwisethecompressorwillbelocked.Tomaintain thehighpressureof thegas cylinder,warm thegas cylinderwithwarmwater(under40°C)duringcoldseason.Butneverusenakedfireorsteam.

COOL/DRY HEAT

• Descriptionofthefunction: With this function,once theoperationmode is locked toeitherCOOL/DRYmodeor

HEATmode,theairconditioneroperatesinthatmodeonly.* Changingthesettingisrequiredtoactivatethisfunction.Pleaseexplainaboutthisfunc-

tiontoyourcustomersandaskthemwhethertheywanttouseit.

[How to lock the operation mode]1)Besuretoturnoffthemainpowerfortheairconditionerbeforemakingthesetting.2)Setthe“3”ofSW1ontheoutdoorcontrollerboardtoONtoenablethisfunction.3)TolocktheoperationmodeinCOOL/DRYmode,setthe“4”ofSW1ontheoutdoor

controllerboardtoOFF.TolocktheoperationinHEATmode,setthesameswitchtoON.

4)Turnonthemainpowerfortheairconditioner.

• Descriptionofthefunction: Withthisfunction,theoperatingnoiseoftheoutdoorunitcanbeloweredbyreducingtheoperationload,forexample,duringnighttimeinCOOLmode.

However,pleasenotethatthecoolingandheatingcapacitymaylowerifthisfunctionisactivated.* Changingthesettingisrequiredtoactivatethisfunction.Pleaseexplainaboutthisfunctiontoyourcustomersandaskthemwhethertheywanttouseit.

Union

Stopvalve

Liquidpipe

Indoor unit

Stopvalvewithserviceport Gas

pipe

Refrigerant gas cylinder operatingvalve(forR410A)

Gaugemanifoldvalve(forR410A)

Chargehose(forR410A)

RefrigerantgascylinderforR410Awithsiphon

Electronic scale for refrigerant charging

Refrigerant(liquid)

Outdoorunit

Union

Union

Union

SW1ON

1 2 3 4 5 6

SW1ON

1 2 3 4 5 6

SW1ON

1 2 3 4 5 6

Lowertheoperatingnoise

[How to lower the operating noise]1)Besure to turnoff themainpower for theairconditionerbeforemaking the

setting.2)Setthe“5”ofSW1ontheoutdoorcontrollerboardtoONtoenablethisfunction.3)Turnonthemainpowerfortheairconditioner.

LEDSW1

SW871SW2

Terminalblock forDREDInterface

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4-5. TEST RUN• Testrunsoftheindoorunitsshouldbeperformedindividually.Seetheinstallationmanualcomingwiththeindoorunit,andmakesurealltheunitsoperate

properly.• Ifthetestrunwithalltheunitsisperformedatonce,possibleerroneousconnectionsoftherefrigerantpipesandtheindoor/outdoorunitconnectingwires

cannotbedetected.Thus,besuretoperformthetestrunonebyone.

About the restart protective mechanismOncethecompressorstops,therestartpreventivedeviceoperatessothecompressorwillnotoperatefor3minutestoprotecttheairconditioner.

Wiring/piping correction functionThisunithasawiring/pipingcorrectionfunctionwhichcorrectswiringandpipingcombination.Whenthereispossibilityofincorrectwiringandpipingcombi-nation,andconfirmingthecombinationisdifficult,usethisfunctiontodetectandcorrectthecombinationbyfollowingtheproceduresbelow.

Makesurethatthefollowingisdone.• Powerissuppliedtotheunit.• Stopvalvesareopen.

Note:Duringdetection,theoperationoftheindoorunitiscontrolledbytheoutdoorunit.Duringdetection,theindoorunitautomaticallystopsoperation.Thisisnota malfunction.

ProcedurePressthepiping/wiringcorrectionswitch(SW871)1minuteormoreafterturningonthepowersupply.

• Correctioncompletesin10to20minutes.Whenthecorrectioniscompleted,itsresultisshownbyLEDindication.Detailsaredescribedinthefollowingtable.

• Tocancelthisfunctionduringitsoperation,pressthepiping/wiringcorrectionswitch(SW871)again.

• Whenthecorrectioncompletedwithouterror,donotpressthepiping/wiringcorrectionswitch(SW871)again.

When the resultwas “cannot be corrected”, press the piping/wiring correction switch(SW871)againtocancelthisfunction.Then,confirmthewiringandpipingcombinationinaconventionalmannerbyoperatingtheindoorunitsonebyone.

• Theoperationisdonewhilethepowerissupplied.Makesurenottocontactpartsotherthantheswitch,includingtheP.C.board.Thismaycauseelectricshockorburnbyhotpartsandlivepartsaroundtheswitch.ContactingthelivepartsmaycauseP.C.boarddamage.

• TopreventelectroniccontrolP.C.boarddamage,makesuretoperformstaticeliminationbeforeoperatingthisfunction.

• Thisfunctiondoesnotoperatewhentheoutsidetemperatureis0°Corbelow.

LED indication during detection:LED1(Red)

LED2(Yellow)

LED3(Green)

Lighted Lighted Once

Result of piping/wiring correction functionLED1(Red)

LED2(Yellow)

LED3(Green) Result

Lighted Not lighted LightedCompleted(Problemcorrectedornormal)

Once Once Once Notcompleted(Detectionfailed)

Otherindications

Referto“SAFETYPRE-CAUTIONSWHENLEDBLINKS”locatedbehindtheservicepanel.

4-6. EXPLANATION TO THE USER• UsingtheOPERATINGINSTRUCTIONS,explaintotheuserhowtousetheairconditioner(howtousetheremotecontroller,howtoremovetheairfilters,

howtoremoveorputtheremotecontrollerintheremotecontrollerholder,howtoclean,precautionsforoperation,etc.).• RecommendtheusertoreadtheOPERATINGINSTRUCTIONScarefully.

Whenrelocatingordisposingoftheairconditioner,pumpdownthesystemfollowingtheprocedurebelowsothatnorefrigerantisreleasedintotheatmosphere.1)Turnoffthebreaker.2)Connectthegaugemanifoldvalvetotheserviceportofthestopvalveonthegaspipesideoftheoutdoorunit.3)Fullyclosethestopvalveontheliquidpipesideoftheoutdoorunit.4)Turnonthebreaker.5)StarttheemergencyCOOLoperationonalltheindoorunits.6)Whenthepressuregaugeshows0–0.05MPa[Gauge](approx.0–0.5kgf/cm2),fullyclosethestopvalveonthegaspipesideoftheoutdoorunitand

stoptheoperation.(Refertotheindoorunitinstallationmanualaboutthemethodforstoppingtheoperation.) * Iftoomuchrefrigeranthasbeenaddedtotheairconditionersystem,thepressuremaynotdropto0–0.05MPa[Gauge](approx.0–0.5kgf/cm2),or

theprotectionfunctionmayoperateduetothepressureincreaseinthehigh-pressurerefrigerantcircuit.Ifthisoccurs,usearefrigerantcollectingdevicetocollectalloftherefrigerantinthesystem,andthenrechargethesystemwiththecorrectamountofrefrigerantaftertheindoorandoutdoorunitshavebeen relocated.

7)Turnoffthebreaker.Removethepressuregaugeandtherefrigerantpiping.

When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.The compressor may burst and cause injury if any foreign substance, such as air, enters the pipes.

WARNING

5. PUMPING DOWN

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BH79A274H01

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

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