Haier MVAH072ME2AA1 User manual

31-5000553 Rev.1 07-21 GEA
InstallationInstructions
InstallationManuel
Instruccionesdeinstalación
MVAH072ME2AA1
MVAH096ME2AA1
Designmayvarybymodelnumber. L’aspectpeutvarierselonlenumérodemodèle. Eldiseñopuedevariarsegúnelnúmerodemodel.
MRVIndoorUnit
UnitéintérieureMRV
UnidadInteriorconMRV

31-5000553 Rev.1 3
ENGLISH
ThankyouforpurchasingthisHaierproduct.Thisinstallationmanualwill
helpyougetthebestperformancefromyournewunit.
Forfuturereference,recordthemodelandserialnumberlocatedon
thelabelonthesideofyourairconditioner/heatpump,andthedateof
purchase.
Stapleyourproofofpurchasetothismanualtoaidinobtainingwarranty
serviceifneeded.
_______________________________________
Modelnumber
_______________________________________
Serialnumber
_______________________________________
Dateofpurchase
ToregisteryournewHaierDuctFreesystemgoto
http://www.haierductless.com/product-registrationandinputthe
model/serialnumberinformationonthispage.Toreceivea10-year
compressorandpartswarranty,registrationisrequiredwithin60daysof
installation.
IMPORTANTSAFETYINFORMATION.....................................................................................4
USERMANUAL ...........................................................................................................6
PARTSAND FUNCTIONS .................................................................................................7
MAINTENANCE ..........................................................................................................8
FAULTCHECKUP.........................................................................................................9
INSTALLATIONPROCEDURES .........................................................................................10
ELECTRICALWIRING...................................................................................................17
TESTRUN&FAULTCODE .............................................................................................23
LIMITEDWARRANTY...................................................................................................24
TABLEOFCONTENTS
RECORDKEEPING

431-5000553 Rev.1
ENGLISH
This manual should be saved and stored close to the air conditioning equipment.
•There are twotypesof indications. Botharerelated to safetyandshould be strictlyfollowed.
• WARNING highlightsissues that posearisk of
majorinjury or death.
• CAUTION highlightsissues that posearisk to
equipmentor bodily injury.
•Please give themanualto the userafterinstallation,
start-upand commissioning. Themanualshould be kept
insafe place andcloseto the unit.
WARNING RISK OF ELECTRIC SHOCK. Could cause injury or death.
•An adequate groundisessential before connectingthe
powersupply.
•Disconnect all connectedelectricpower supplies before
servicing.
•Size electrical conductorsaccordingto national orlocal
codes.Wiring should beproperlysupported and secured.
Cableinsulation should notbedamaged.
•Keep the equipmentandits power conductorsoutof
children’sreach.
WARNING
•Please install theuniton a solidfoundationor structure
strongenough to supporttheunit.
•The installation ofthisequipment should followlocal
buildingcodes.
•This unit isonlycompatible with R-410Arefrigerant.
Useof any otherrefrigerantmay lead toabnormallyhigh
operatingpressures and canleadto damage orpersonal
injury.
•Use only branchfittingssupplied by Haier.Useof any
otherbranch fittings willvoidwarranty.
•Keep the condensatedrainpipe away fromtoxicgas vents
toprevent possible pollutionofindoor environment.
•Care should betakento ensure thatthereare no
refrigerantleaks. R-410A isaheavy gas andwilldisplace
oxygen.Ventilate the areaifa leak isfound.
•The drain pipeshouldbe installed perthismanual to
ensureproper drainage. Thepipeshould be wellinsulated
toavoid moisture condensation.Incorrectinstallation
maylead to waterdamage.
•Both liquid pipeandthe vapor pipeshouldbe well
insulated.Lack of insulationmaylead to system
performancedeterioration or condensateformation.
•This equipment shouldnotbe used orservicedby
personnelwho have notbeenproperly trained inits
operationand maintenance.
•Children should besupervisedto ensure thattheydo not
playon or neartheequipment.
WARNING
RISK OF FIRE. Could cause injury or death.
• Donot store orusecombustible materials, gasolineorother flammable vaporsorliquids in thevicinityof this oranyother
appliance.
•Improper wire installationmaylead to fire.
IMPORTANTSAFETYINFORMATION

31-5000553 Rev.1 5
ENGLISH
READ AND SAVE THESE INSTRUCTIONS
FORMOREHELP,VISITHAIERAPPLIANCES.COMORCALLTHECONSUMERHELPLINEAT877-337-3639.
•Grounding wireshouldbe connectedtothe groundbussin
thecircuit breaker panel.Thegrounding wire should not
beconnected to gaspipes,water pipes, lighteningrodsor
thetelephone grounding wire. Impropergroundingmay
causeelectric shock.
•A circuit breakerprotectingthe equipment wiringmustbe
installed.Failure to properlyprotect equipmentwiring can
causedamage, personal injuryordeath.
•After installation, theairconditioning equipment should
bepowered on andpassan electric currentleakagelest.
•Water vapor orspraycan be blownoffthe coil surface
ifthe ambient humidityisgreater than 80%, the
condensatedrain opening isblocked,the filter becomes
çìõ÷üòõ÷ëèäìõĩòúåèæòðèöõèö÷õìæ÷èçéòõäñüõèäöòñé
thepipe is bentrepeatedlyat the sameplace,it will break.
BEFOREYOUBEGIN
Readtheseinstructionscompletelyandcarefully.
•IMPORTANT–Savethese instructionsforlocal inspector’suse.
•IMPORTANT–Observeallgoverningcodesandordinances.
• Notetoinstaller–Be sure toleavethese instructionswiththeConsumer.
• Note to consumer –Keeptheseinstructionsforfuturereference.
• Skill level –Alicensedcertifiedtechnician(tohandlerefrigerant R-410A,recovery,etc)anda qualifiedelectrician are
required for installation andserviceof thissplit heat pumpsystem.
• Properinstallationistheresponsibilityoftheinstaller.
• Product failuredue toimproperinstallationisnot coveredunder thelimited warranty.
• Forpersonal safety,thissystemmustbe properlygrounded.
• Protective devices(fusesorcircuitbreakers)acceptableforinstallation arespecified on thenameplate of eachunit.
• Makesuretoavoidwiringorplumbinginsidethewallwheninstalling.
CAUTION
• Aluminumelectricalwiringmaypresentspecial problems-consultaqualified electrician.
• WhentheunitisintheSTOPposition,there isstillvoltage tothe electrical controls.
CAUTION
IMPORTANTSAFETYINFORMATION

631-5000553 Rev.1
ENGLISH
Important Informaton:
•MRV series multizoneair conditioning systemscanoperate multiple indoorunitsin heating orcooling.
•For the heatpumpunit, only unitssetto cool modewillrun when modeisset in cooling;thesame logic appliesfor
heating.For the heatrecoveryunit, units canrunas the settingmode,no matter whatthemode is runningin.
•The power mustbeturned on for12hours prior tostart-upto allow thecrankcaseheat adequate timetoprotect the
compressor.
•All indoor unitsonthe same refrigerationsystemshould have acommonbreaker to ensurethatall indoor unitsareall
poweredon during systemoperation.
•This indoor units can be controlled by wired controller and remote controller, but the unit have to connect a signal
receiver(RE-02) to use the remote controller.
Product Features:
1.High static pressureductedindoor unit.
2.Only 19 2/3In.thickness makes iteasierfor installation inlimitedspace.
3.System automatically displaysanydiagnostic error codes.
4.Brushless DC motorforimproved energy efficiency.
5.ESP 1.0(249) In.W.G.(Pa).
6.Centralized controller function(optionalHaier controller).
7.The system willresumethe last modeandsettings it wassetto if thereisa power outagewhile thesystem is
operating.
8.Low sound level.
9.Multi-speedstatic pressure windgearadjustable.
Operating Conditions:
Touse the airconditionernormally, please performasto the belowconditions:
USERMANUAL
OperatingRangeof Air Conditioner
CoolingDry Indoor Max. DB:90°F(32°C) WB:74°F(23°C)
Min. DB:64°F(18°C) WB:57°F(14°C)
Outdoor Max. DB:115°F(46°C) WB:79°F(26°C)
Min. DB:23°F(-5°C)
Heating Indoor Max. DB: 80°F(27°C)
Min. DB:59°F(15°C)
Outdoor Max. DB:75°F(24°C) WB:59°F(15°C)
Min. DB:-4°F(-20°C)

31-5000553 Rev.1 7
ENGLISH
PARTSANDFUNCTIONS
HangingBracket
Fan
ElectricBox
LiquidPort
Drainage
Pipe(gravity)
GasPort

831-5000553 Rev.1
ENGLISH
MAINTENANCE
Filter Maintenance:
Cleaningthe air filter&air inlet/outlet grilles.
•Don't remove theairfilter except forcleaningor faults couldoccur.
•Clean the airfilteron a regularbasis(generally once everytwoweeks) when theairconditioner is operatingina dusty
environment.
Cleaning the air inlet/outlet grilles:
•Wipe grilles withasoft dry cloth.
•Water or neutraldrycleaner is recommendedifthe dust cannotberemoved.
Cleaning the air filter:
(A)Brush off dirtandvacuum.
(B)Wash with softclothand mild detergent.
(C)Shake water offandallow the filtertofully air drybeforereinstalling.
WARNING
•This equipment canbecleaned only whenitis switched offanddisconnected from thepowersupply or electricshock
andinjury may occur.
WARNING
•Do not usegasoline,benzene, diluents, polishingpowderor liquid insecticidetoclean them.
•Do not cleanthemwith hot waterofover 122°F (50°C)toavoid fading ordistorting.
WARNING
•Do not cleanthemwith hot waterofover 122°F (50°C)toavoid fading ordistorting.
•Do not exposetheair cleaner tohightemperatures to dry.

31-5000553 Rev.1 9
ENGLISH
Pleasecheck the followingbeforeconsulting repair service:
Immediatelystop system operation,disconnectthe system powersupplyswitch and contacttheafter-service personnel
ifthe following circumstancesexist:
•When buttons arenotflexible and actuated;
•When there areforeignobjects or iceinthe unit;
•When the systemwillnot operate afterexitingthe protection mode;
•When other abnormalconditionsoccur.
FAULTCHECKUP
Allof theseare
notproblems.
Symptoms Reasons
Runningwaternoise Waterrunningsound canbe heardduringstartingoperation,during operationor immediately
afterstopping.Therunningwater soundmay becomelouder2-3minutesafter theunit starts.
Thesoundisrefrigerantcirculating insidethe system.
Crackingsound Duringoperation,theairconditionermaymakeacracklingsound.Thisiscausedfromthetemperature
changesoftheheatexchanger.
Badsmellinoutletair Clean filtersand confirmthecondensatedrainpan anddrain linearecleanandclear.
Flashingoperatingindicator Whenrestoringpowerafterpowerfailurewillshowtheoperatingindicatorflashes.
Waitingindicator Waitingindicationisdisplayed ifthe unitfailstoperformcooling operationwhile otherindoor
unitsareinheatingmode. Whenthe controlissetitto theopposite modeasthesystemis
currentlyoperating;thecontroldisplays waiting.
Idleindoorunitstillhas sound
ofrefrigerantflowingand
radiatingtemperatures
Whileotherindoorunitsareoperating;somerefrigerantflowisallowedtopassthroughotheridleunits.
Thismayresultinsomeradiatingtemperatureandflownoise.
Clickingsoundwhenunit
comeson Thesoundismade whenthe systemispoweredonand isfrom ameteringvalvecalibrating.This soundisnormal.
Please make
another check.
Check if there is
a power failure.
StartorStopworking
automatically Checktoseeifthesystemoperationisbeingcontrolledbythetimerfunction.
Timer-ONandTimer-OFF
Failuretowork Checkifthereisapowerfailure.
Checkifthepowersupplyfuseorbreakerareopen.
Checkiftheunitisdisplayinganyfaults.
Checkifwaitsymbolisdisplayed.Thisisduetootherindoorunitsconnectedtothesameoutdoorunit
arerunningintheoppositemode.
Systemcannotheatandcoolsimultaneously
Poorcooling&heating
effects Checkifoutdoorfanintakeoroutletgrillesareblocked.
Checkifdoorsandwindowsareopen.
Checkiftheairfilterisblockedwithdebrisordust.
Checkifthefansettingistoolow.
CheckifthesystemmodeissettoFanmode.
Checkifthetemperatureissetcorrectly.

10 31-5000553 Rev.1
ENGLISH
INSTALLATIONINSTRUCTIONS
Thismanual cannot completelyillustrateall the propertiesofthe products thatwerepurchased. Please contactthelocal
Haierdistribution center ifyouhave any questionorrequest.
Installation information:
1.The distance betweenairoutlet and thegroundshould
notbe more than8.8ft(2.7m).
2.Select appropriate placesforinstallation where the
airflowcan be spreadevenlythroughout the house.
Arrangeproper locations forconnectingpipes and lines
aswell as thedrainpipeto the outdoor.
3.Ceiling construction mustbesturdy enough toholdthe
weightof the unit.
4.Make sure thattheconnecting pipe, thedrainpipe and
connectingrefrigerant lines canbeput through the
outsidewalls to connecttheoutdoor units.
5.Make the connectingpipebetween the outdoorand
indoorunits and thedrainpipeas short aspossible.
6.Please read theattachedinstallation instructions for
outdoorunit refrigerant charginginstructions.
7.The connecting flangeshouldbe checked byusers.
8. Electricalappliances such astelevision,instruments,
devices,artwork, piano, wirelessequipmentand other
valuablesshould not beplacedunder the indoorunitto
avoidpossible condensate fromdrippingonto them and
causingdamage.
The following steps can be taken after selecting the installation place:
1.Cut a holeinthe wall andinsertconnection pipe andconnectingwires through afield
suppliedPVC pipe. Theholeshould be inclinedslightlydownward with aninclinationof
atleast 1/100.
2.Before cutting theopening;ensure no pipeorrebar is placedbehindthe cutting
position.Avoid cutting theopeningnear wires orconnectionpipes.
3.Hang the unitona horizontal andfirmroof. If theunitbase is notstable,it may causenoise,vibration or leakage.
4.Support the unitfirmlyand shape theconnectionpipe, connecting wiresanddrain pipe toallowthem to easilyget
throughthe opening.
WARNING
Protectthe machine fromwindsor earthquake andinstallaccording to regulations.Improperinstallation will cause
accidentsdue to unitcomingloose and falling.
CAUTION
•Choose a suitableinstallationlocation.
•Avoid places withhighsalinity (salt water)andhigh sulfur gas.Unitwill corrode anddamagewill not becovered
bywarranty.
•Avoid excess oil(includingmechanical oil) andsteam.This can reduceefficienciesand product performance.
•Avoid areas wheremachinesgenerate high frequencyelectromagneticwaves; this cancausecontrol issues.
RequiredToolsforInstallation:
•Brazingtorch
•15%silverphosphorouscopperbrazingalloy
•Wirestripper
•Soap-and-watersolutionorgasleakagedetector
•Torquewrench
•Tubingcutter
•Reamingtool
•Flaringtool
•Knife
•Measuringtape
•Level
•Vacuumpump
•Weighing-appliance
•Nitrogen
•Mini-SplitAD-87Adapter(1/4”to5/16”)
•Non-adhesiveTape
•AdhesiveTape
•Electricalwiring

31-5000553 Rev.1 11
ENGLISH
INSTALLATIONINSTRUCTIONS
Dimension (unit: in.)
44(1116)
133/4(348)
481/8(1221)
331/4(845) 351/4(895)
523/8(1330)
525/8(1366)
373/4(960)
143/4(376)
123/4(324) 2(51)
83/8(213)
11/4(32)
11/2(38)
Top
Bottom
AirSupply
AirReturn
ķ
ĸ
Ĺ
ĺ
Ļ
ļ
# PartName
1 ControlBoardCover
2 LiquidPipeConnection
3 GasPipeConnection
4 TopBaffle
5 GravityDrainHose
6 BottomBaffle

12 31-5000553 Rev.1
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INSTALLATIONINSTRUCTIONS
Dimensions of drain hold and pipe:
Installation modes for indoor units
Thisseries of airconditionerscan be arrangedintwo air returnmodes:
1.Air return fromtheback (Factory default);
2.Air return fromthebottom (can beadjustedon site). Seethefollowing figures.)
Note: Thedownward air returnmodewill increase noise6-8dB(A).It is recommendedtoinstall the airconditionerin
downwardreturn air mode2if enough spaceisavailable.
123/4(324)2(51)
83/8(213)
11/4(32)
11/2(38)
AirOut
AirIn
Dimensionof
thegravitydrain
opening:ODø1"
8
AirOut
AirIn
Airreturnfromthebottom
Airreturnfromtheback

31-5000553 Rev.1 13
ENGLISH
INSTALLATIONINSTRUCTIONS
Installation space and method
Bodyinstallation:
1.Use3/8" (M10) liftingbolts.
2.Ceiling removal: Fordifferentbuilding structures, pleaseconsultwith building personnelaboutactual conditions.
a.Ceiling reinforcement: Ensuretheceiling is horizontalandwill not shake.Theceiling base framemustbe reinforced.
b.Cut off andremovethe ceiling baseframe.
c.Reinforce the facesleftwhen the ceilingisremoved and furtherreinforcethe base framethatfix both endsofthe
ceiling.
d.After the unitinstallationis complete, itistime to installpipesand wires. Chooseasuitable installation position
anddetermine the outgoingdirectionof pipes beforeinstallation.Please pull refrigeranttubing,drain hose, indoor
andoutdoor connecting wires,controlwires to theirconnectionpositions prior tohangingthe machine when
aceiling exists.
Installation space:
Installation of air-inlet grille
Theangle of air-inletgrilleshould be parallelwiththat of airinletdirection, otherwise itwillcause more noise.Example
shownto the right.
Correct
Airin
Wrong
Airout
>4in
>24in
>40in
ElectricControl
Enclosure
4-Ø3/8"(M10)hangingbolt
8-Ø3/8"(Ø10)washer
8-Ø3/8"(M10)hangingnut
Levelthe unitwithin0.2in(5mm)
Ensuretheendhavingdrainageportisslightlylowertofacilitatedrainage

14 31-5000553 Rev.1
ENGLISH
INSTALLATIONINSTRUCTIONS
Duct Installation of Indoor Units:
1.Installation of theductwork: With asquaresupply duct; theboreshouldn't be lessthanthe sizes ofairoutlet duct.
2.Installation of theairreturn duct: Connectoneside of theairreturn duct totheair return oftheindoor units withrivets,
withthe other sideconnectedto air returnshutter,as shown below.
3.Insulating Supply Ducts:Supplyand return airductsshould be insulated.
Selection of Fan Outlet:
Thismachine uses aDCmotor. Multiple ESPadjustmentsare available. Thefactorydefault is standardESP.The ESP &
Silentmode can besetaccording to thestaticpressure and thenoiserequirement.
Settingranges are asfollows:
Operation:
YR-E16Bwired controller: Withthedisplay on, presstheMenu key to enterthemenu interface. PressInstallers Settings
keyto enter theinstallationsettings interface. Then selectSpecial Settings andenter password: 841226.ESPis the
correspondingstatic pressure gearnumberfunction. When theleftand right arrowsareflashing, press theEnter keyto
confirm.When the leftandright arrows arestill,press left and right keystoadjust. After adjustment,pressEnter
toconfirm.
Installation of Drain Hose:
Connectionof indoor drainhose
1.Please use theaccessorydrain hose toconnectindoor unit's condensateoutletand PVC pipe.Usesnap rings totighten
themas shown inthefigure on thenextpage.
2.Please use rigidPVCadhesive for connectionofother pipes andensurethere is noleakage.
3.Drain hose mustbewrapped with insulationsleeveand tightened withastrap to preventairleakage from producing
condensation.
4.Drain hose shoulddeclineto the drainagesidewith an inclinationofabove 1/100 topreventwater flowing backintoair
conditionerwhen the unitstopsrunning. Drain hoseexpansionor water accumulationshouldbe prevented, orelseit
willcause abnormal noise.
5.Do not pullonthe drain hosewhenmaking the connectionstoavoid the pipeconnectionsfrom getting looseor
disconnected.Drain hose shouldnotbe pulled outlaterallyfor more than8in(200mm) and shouldbesupported every
31-39in(0.8-1.0m) to avoidbending.
6.The end ofdrainhose should bemorethan 2in(50mm) awayfromthe ground orthebottom of drainagetank.It should
notbe put inwater.To directly draincondensationinto a drainline;the drain hosemustbe trapped (U-shaped)toavoid
sewersmell from enteringthroughthe hose intoroom.
Airreturnshutter
Airreturnpipe Indoorunit
Revit
Connectionofairreturnpipe
Grade 1 2 3 4/StandardESP 5 6 7 8 9 10 11
ESP/Pa 0 40 70 100 120 150 170 190 210 230 250

31-5000553 Rev.1 15
ENGLISH
INSTALLATIONINSTRUCTIONS
Installation of Drain Hose (cont.):
Drainage Test:
Ensurethe drain hoseisclear and allconnectionsare tightly sealedbeforetesting.
Performthe drainage testasfollows:
1.Add about 0.132gal(500ml)of water intothedrain
panthrough water injectionport.
2.Switch on thepowerand operate theunitin cooling
mode.Check that thewateroutlet drains water
normallyand that thereareno leakages atthe
connections.After the drainagetestis complete,
replacethe water injectionportplug. For the
positionof water injectionport;see the figure.
3.Themaximum displacement ofthisindoor units is
8.98gal/h(34kg/h).
Indoorunit
Wateroutlet
Snapring Drainhose PVCdrainhose
RigidPVCadhesive
Setasupportingpointatevery 31-39
12~13in
"(ìñ
Inclination1/100
Inclination1/100
Wateroutletheader
"(ìñ
2~4in
12~13in
"(ìñ
2~4in
12~13in
Multipleunitsusewateroutletheader todrainwaterintobuildingdrain

16 31-5000553 Rev.1
ENGLISH
INSTALLATIONINSTRUCTIONS
Pipe Length and Height Difference
Pleaserefer to theattachedmanual of outdoorunits.
Tubing Material and Specifications
Specialtools designed forR410Ashould be usedforcutting and flaringpipes.
Refrigerant Recharge Amount
Addrefrigerant according totheinstallation instructions fortheoutdoor unit. Theadditionof R410A refrigerantmustbe
performedwith a digitalscaleto ensure properquantities.Compressor failure canbecaused by overorunder charging
thesystem.
Connection Procedures of Refrigerant
Connectall the refrigeranttubesvia flare connections.
•Dual wrenches mustbeused in theconnectionof indoor unittubing.
•For tightening torquereferto the righttable.
Cutting and Enlarging
•Cut the tubetothe needed length.
•Ream the cuttoremove shoulder. Dothiswith the tubefacingdown to helpfillingsfall out.
•Add supplied flarenutto tube.
•Use R410a flaretoolto create flares.
Model MVAH072ME2AA/MVAH096ME2AA
TubingSize(mm) GasPipe Ø22.22
LiquidPipe Ø12.7
TubingMaterial SeamlesscopperpiperatedforR410Arefrigerant
OutDiameterofTubing
in(mm) MountingTorque lb-in(N-m) FlareTorqueSpec ft-lb(N-m)
Ø1/2"(Ø12.7) 443.7(49.0) 43(59)
Wrench

31-5000553 Rev.1 17
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ELECTRICALWIRING
Wire Connections
1. Connect using circular crimp terminals:
Themethod of usingcircularterminal is showninthe figure. Takeoffthe screw, connectitto the terminalafterplacing
itthrough the ringatthe end ofthelead and tightenitdown.
2. Connect using straight terminals:
Themethod of usingstraightterminals is shownasfollows: loosen thescrewbefore putting thewireinto the terminal
block,tighten the screwandconfirm it hasbeentightened by pullingtheline gently.
3.Clamp the wires:
Securethe wires withclipswhich should pressonthe insulation ofthewires.
Connecting
circular
terminals
Terminaltier
Pressing
Clip
Correctpressing Wrongpressing
WARNING
•Follow local codeswhenselecting wire gaugeandconnecting to housepower.
•Use the cablestrainrelief clips andlockingconduit clamps topreventwires from beingpulledoff terminal posts.
•Unit must beproperlygrounded. Do notusewater or gaspiping,phone ground orlightningrod.
CAUTION
•Only copper wirecanbe used. Aproperlysized breaker shouldbeprovided, or electricshockmay occur.
•Unit requires 208/230VAC–L1, L2 wireanda ground. Noneutralis required.
•All indoor unitsshouldbe wired tothesame breaker topreventsome of theunitsfrom being poweredoffwhile
othersare energized.
•Controller wiring andrefrigeranttubing can bearrangedand ran together.
•Disconnect power frombothoutdoor and indoorunitsprior to servicinganycomponent in thesystem.

18 31-5000553 Rev.1
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ELECTRICALWIRING
•Indoorunits mustshareonesingleelectricalbreaker.Circuitbreakerspecificationsshouldbe
calculated.Itis recommendedtohavebothindoor&outdoorunitsconnectedtoGFCI andsurge
devices.
Signal Wiring Drawing
L1(L)L2(N)
L1(L) L2(N) L1(L)L2(N) L1(L) L2(N)
......
GroundFaultInterruptor
CircuitBreaker
GroundFaultInterruptor
CircuitBreaker
PowerSource:208/230V~,60Hz
PowerSource:208/230V~,60Hz
Outdoor
Indoor1 Indoor2 Indoor9
Communicationwirebetweenindoor
andoutdoorwithoutpolarity
Controlwireforwiredcontroller
withpolarity

31-5000553 Rev.1 19
ENGLISH
Wire Connections (cont.)
•Outdoor units areofparallel connection viathreelines with polarity.
•The main unit,centralcontrol and allindoorunits are ofparallelconnection via twolineswithout polarity.
•There are threewaysof connecting thelinecontrol and indoorunits:
A.One wired controllertocontrol multiple units,i.e.2-9 indoor units,asshown in thefigureat the topofpage 18, (1-3
indoorunits). The indoorunit3 is thewirecontrolled main unitandothers are thewiredcontrolled sub units.Thewired
controllerand the mainunit(directly connected totheindoor unit ofwiredcontroller) are connectedviathree wires
withpolarity. Other indoorunitsand the mainunitare connected viathreelines with polarity.SW01on the mainunitof
wiredcontrol is setto0 while SW01onother sub unitsofwired control aresetto 1, 2andso on inturn.(Please refer to
thecode setting Aatpage 14)
B.One wired controllercontrolsone indoor unit,asshown in thefigureat the bottomofpage 18 (indoorunit4-8). The
indoorunits and thewiredcontroller are connectedviathree lines withpolarity.
C.Two wired controllerscontrolone indoor unit,asshown in thefigure(page 18) (indoorunit9). Either ofthewired
controllerscan be settobe the mainwiredcontroller while theotheris set tobethe auxiliary wiredcontroller.The main
wiredcontroller and indoorunits,and the mainandauxiliary line controlsareconnected via threelineswith polarity.
Note: ForDC motor/low ESPducttype, the PCBcomeswith the terminalblocks.Please be suretopay attention todo
thewiring according tothelabels. The powerlinesand signal linesgothrough the metalwirehole separately withthe
protectivesleeve of theconnectingline.
Wiregauge size andbreakersize for totalindooramp draw.
CurrentNEC guidelines andlocalcodes will trumpthischart.
•The electrical powerlineand signal linesmustbe tightened.
•Every indoor unitmusthave a groundconnection.
•The power wireshouldbe size upifit exceeds thepermissiblelength.
•Shielding of thewireof all theindoorand outdoor unitsshouldbe connected andgroundedat one pointinthe outdoor
unit.The far endofthe shielding wireshouldbe wrapped backandtaped.
•Signal lines shouldnotexceed 3280ft (1000m).
Wired Controller ABC Chart
•The shielding layerofthe controller wiremustbe grounded attheequipment end, andtapedback at theterminalend.
•The total lengthofthe controller wireshallnot be morethan820ft (250m).
Items Cross Section
(mm²)Length (mm) Rated Current of OverflowBreaker
(A)
Rated Current of
Residual Circuit
Breaker(A)
GroundFault
Interrupter (mA)
Response Time (S)
Cross
Sectional Area
ofSignal Line
<6 2.5 20 6 6A,30mA,0.1S orbelow
2coreX0.75-
2.0mm2
6and<10 2.5 20 10 10A,30mA,0.1S orbelow
10and<16 4 25 16 16A,30mA,0.1S orbelow
16and<25 6 30 25 25A,30mA,0.1S orbelow
25and<35 10 50 32 32A,30mA,0.1S orbelow
TotalCurrent
ofIndoor
Units(A)
LengthofControllerWireft(m) WiringDimensionsAWG(mm²)
820(250) 18(0.75)x3 coreshielding line
ELECTRICALWIRING

20 31-5000553 Rev.1
ENGLISH
Dip Switch Setting
•The dip switchisset to the"On"position if “1”isindicated in thetable.The dip switchisset to the"Off"position if "0"is
indicatedin the table.
•Dip switches setinthe factory toonare marked withred.
Definition principles of code switches:
(A)Definition of SW01:
•SW01_1-4 is usedtoset indoor addresswhengrouping multiple indoorunitsconnected to singlewiredcontroller
YRE16Bor YR-E17.
•SW01_5-8 set capacityofthe indoor unit(factoryset). Must onlysetwhen replacing board.
Note :A wired controllercanbe connected tosixteenultra thin air-ductindoorunits maximum.
ELECTRICALWIRING
SW01_1
SW01_2
SW01_3
SW01_4
Addressofwire
controlledindoorunit
(groupaddress)
[1] [2] [3] [4] Addressofwirecontrolledindoor unit(groupaddress)
0 0 0 0 0#(wirecontrolled mainunit) (default)
0 0 0 1 1#(wirecontrolled subunit)
0 0 1 1 2#(wirecontrolled subunit)
0 0 1 1 3#(wirecontrolled subunit)
••• ••• ••• ••• •••••••
1 1 1 1 15#(wirecontrolled subunit)
SW01_5
SW01_6
SW01_7
SW01_8
Capabilityofindoorunit [5] [6] [7] [8] Capability ofindoor unit
0 0 0 1 7000BTU
0 0 1 0 9000BTU
0 0 1 1 12000BTU
0 1 1 0 18000BTU
0 1 1 1 24000BTU
1 0 1 0 36000BTU
1 0 1 1 48000BTU
1 1 0 0 54000BTU
1 1 0 1 72000BTU
1 1 1 0 96000BTU