Haier MRV Series User manual

31-5000500 Rev.0 04-20 GEA
InstallationInstructions
InstallationManuel
Instruccionesdeinstalación
MVAD007MV2AA
MVAD009MV2AA
MVAD012MV2AA
MVAD018MV2AA
MVAD024MV2AA
Designmayvarybymodelnumber. L’aspectpeutvarierselonlenumérodemodèle. Eldiseñopuedevariarsegúnelnúmerodemodelo.
MRVSeriesMultiZoneAirConditioner
ClimatiseurmultizonedelasérieMRV
AcondicionadordeAireMultiZonadelaSerieMRV

231-5000500 Rev.0
ENGLISH

31-5000500 Rev.0 3
ENGLISH
ThankyouforpurchasingthisHaierproduct.Thisinstallationmanualwill
helpyougetthebestperformancefromyournewheatpump.
Forfuturereference,recordthemodelandserialnumberlocatedon
thelabelonthesideofyourairconditioner/heatpump,andthedateof
purchase.
Stapleyourproofofpurchasetothismanualtoaidinobtainingwarranty
serviceifneeded.
_______________________________________
Modelnumber
_______________________________________
Serialnumber
_______________________________________
Dateofpurchase
ToregisteryournewHaierDuctFreesystemgoto
haierappliances.com/support/register-ductless
andinputthemodel/serialnumberinformationonthispage.Toreceive
a10-yearcompressorandpartswarranty,registrationisrequiredwithin
60daysofinstallation.
RECORDKEEPING
IMPORTANTSAFETYINFORMATION.....................................................................................4
USERMANUAL ...........................................................................................................6
PARTSAND FUNCTIONS .................................................................................................7
MAINTENANCE ..........................................................................................................8
FAULTCHECKUP.........................................................................................................9
INSTALLATIONPROCEDURES .........................................................................................11
ELECTRICALWIRING...................................................................................................15
TESTRUN&FAULTCODE .............................................................................................20
LIMITEDWARRANTY...................................................................................................21
TABLEOFCONTENTS

431-5000500 Rev.0
ENGLISH
Thismanual should begivento the buildingownerand kept forfuturereference.
•There are twotypesif indications. Botharerelated to safetyandshould be strictlyfollowed. WARNING highlights
issuesthat pose ariskof major injuryordeath. CAUTION highlights issues thatposea risk ofequipmentor bodily injury.
•After installation andstart-upcommissioning, please givethemanual to theuser.The manual shouldbekept in safe
placeand close totheunit.
WARNING
•Installation and maintenanceshouldbe performed by
anauthorized agency. Thewrongoperation of thisair
conditioningequipment may causewaterdamage, electric
shockor fire.
•Please install theuniton a solidfoundationor structure
strongenough to supporttheunit.
•The installation ofthisair conditioning equipmentshould
followlocal building codes.
•Use the propersizeelectrical wiring andsecureall
terminals,and organize allwiringand make sureall
wiringis not understress.Inspect all wiringforinsulation
blemishesand damage. Improperwiresize may lead
tofire.
•This unit isonlycompatible with R-410Arefrigerant.
Useof any otherrefrigerantmay lead toabnormallyhigh
pressuresand may causedamageor injury.
•Only use branchfittingssupplied by Haier.Useof any
otherbranches will voidwarranty.
•Make sure allcondensatedrain piping isproperlytrapped
whenconnected to buildingdrainsto avoid drawingfoul
gassesinto the buildingenvelope.
•Care should betakento ensure thatthereare no
refrigerantleaks. R-410A isaheavy gas andwilldisplace
oxygen.Ventilate the areaifa leak iffound.
•Keep equipment awayfromflammable environments.
•The drain pipeshouldbe installed perthismanual to
ensureproper drainage. Thepipeshould be wellinsulated
toavoid condensation. Inadequateinstallationmay lead to
waterdamage.
•Both liquid pipeandthe vapor pipeshouldbe well
insulated.Inadequate insulation mayleadto 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.
•Keep the equipmentandits power supplywiringout of
reachof children.
•This equipment isnotintended to beoperatedby means
ofan external timerorseparate remote-control system.
IMPORTANTSAFETYINFORMATION
CAUTION
•Earth ground conductorshouldbe connected viathe
equipmentdisconnect to thegroundbuss in thebreaker
panel.The earth groundconductorshould not be
connectedto any gaslines,water lines, lighteningrods,or
telephonegrounds.
•A circuit breakermustbe installed. Failuretoinstall a
circuitbreaker may causeelectricshocks or accidents.
•The equipment shouldbechecked for currentleakage
afterinstallation and power-up.
•Water or moisturemaydischarge from theequipment
whenrelative humidity risesabove80%, when condensate
drainlines become blockedorwhen air filtersbecome
blockedor heavily soiled.

31-5000500 Rev.0 5
ENGLISH
READ AND SAVE THESE INSTRUCTIONS
FORMOREHELP,VISITHAIERAPPLIANCES.COMORCALLTHECONSUMERHELPLINEAT877-337-3639.
•Do not putanyheating apparatus undertheindoor units.
Theheat may causedistortionof the units.
•Pay attention totheventilation to avoidanoxicinjury.
•Do not placeanopen flame inthepath of blowingair.
•Do not installina corrosive environment.Ifthe base
collapses,the unit mayfalland cause damage,product
failure,personal injury ordeath.
•Do not usetheunit for specialpurposessuch as
preservingfoods, works ofartetc. It isanair conditioner
forcomfort cooling /heating,not a precisionrefrigeration
system.
•Size circuit breakerperlocal or nationalcodes,improper
breakeror fuse mayleadto fire, electricshock,explosion,
personalinjury or death.
•Turn off thepowerto save energyifthe unit willbenot
usedfor a longperiod.The unit continuestouse power
eventhough the equipmentisturned off atthecontroller.
•Do not permitwaterto enter theunitand the wired
controller.There is riskofunit failure, fire,electricshock,
personalinjury or death.
•3-minutes protection
Toprotect the unit,thereis a 3-minutetimedelay after
theunit stops orafterpower is applied.
•Closethewindow toavoidoutdoorairgettingin.Curtains
orwindowshutterscanbeput downtoavoidthesunshine.
•Do not touchthepower switch withwethands to avoid
powershock.
•Turn off thesystemand remove powerwhenservicing
theunit.
•Turn equipment offatthe control beforeisolatingpower.
•Do not cleantheunit with waterspray.There is riskof
damagingthe unit, fire,electricshock, personal injury
ordeath.
•Keep flammable gasorcombustibles away fromtheunit.
Thereis risk ofproductfailure, fire, personalinjuryor
death.
•Please keep childrenawayfrom this airconditioning
equipment.
BEFOREYOUBEGIN
Readtheseinstructionscompletelyandcarefully.
•IMPORTANT–Savethese instructionsfor
localinspector’suse.
•IMPORTANT–Observeall governing
codesandordinances.
• Notetoinstaller–Be sure toleave these instructions
withtheConsumer.
• Note toconsumer – Keeptheseinstructions for future
reference.
• Skill level –A licensed certified technician(tohandle
refrigerant R-410A,recovery,etc)andaqualified
electrician are requiredfor installationandservice of
this splitheatpump system.
• Properinstallationistheresponsibilityoftheinstaller.
• Product failure duetoimproperinstallation is not
coveredunderthe limitedwarranty.
• Forpersonal safety,this systemmust be properly
grounded.
• Protectivedevices(fusesor circuitbreakers)acceptable
forinstallationarespecifiedonthe nameplateofeach
unit.
• Makesuretoavoidwiringorplumbinginsidethewall
wheninstalling.
CAUTION
• Aluminum electricalwiring maypresentspecial
problems-consultaqualifiedelectrician.
• Whenthe unitis in theSTOPposition,there is still
voltage totheelectrical controls.
CAUTION
IMPORTANTSAFETYINFORMATION

631-5000500 Rev.0
ENGLISH
Important Informaton:
•MRV series multizoneair conditioning systemscanoperate multiple indoorunitsin heating orcooling.When in cooling,
onlyunits set tocoolwill run. Samelogicapplies for heating..
•Turn power onfor12 hours priortostart-up to allowthecrankcase heater adequatetimeto protect thecompressor.
•All indoor unitsonthe same refrigerationsystemshould use theunifiedpower switch toensurethat all indoorunitsare
allpowered on duringsystemoperation.
Product Features:
1.Low static pressureindoorunits.
2.Space saving design.
3.System automatically displaysanydiagnostic error codes.
4.Brushless DC motorsforimproved energy efficiency.
5.Five fan speedswitha quiet operationmode.
6.Wider range ofESP:0-0.12in.W.G.(0-30Pa).
7.Centralized controller function(optionalfrom Haier).
8.The system willresumethe last modeandsettings it wassetto run inifthere is apoweroutage.
9.This indoor unitonlyhas a wiredcontrolleroption.
Operating Conditions:
Pleaseoperate in theconditionslisted below fornormaloperation.
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)
WARNING
•The power supplywiringmust be replacedbythe manufacturer oraqualified contractor ifitbecomes damaged in
orderto avoid hazardorinjury.
•This equipment shouldnotbe used orservicedby personnel whohavenot been properlytrainedin its operationand
maintenance.
•Children should besupervisedand kept awayfromthis equipment.
•This equipment isnotintended to beoperatedby means ofanexternal timer orseparateremote-control system.
•Keep the equipmentandits cord outofreach of children.

31-5000500 Rev.0 7
ENGLISH
PARTSANDFUNCTIONS
Hanging bracket
Drainage pipe
(pump)
Electric box
Drainage pipe (gravity)
Liquid and gas ports
Evaporator
Supply air

831-5000500 Rev.0
ENGLISH
MAINTENANCE
Filter Maintenance:
Cleaningthe air filter&air inlet/outlet grilles.
•Don't remove theairfilter except forcleaningor faults mayoccur.
•Make sure tousea stable platformwhilecleaning or servicingtheequipment. Do notflushthe equipment withwater
orelectric shock mayoccur.(clean filters onceeverytwo weeks).
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 usegasoline,benzene, diluents, polishingpowderor liquid insecticidetoclean them.
•Do not cleanthemwith hot waterofover 122°F (50°C)toavoid fading ordistorting.

31-5000500 Rev.0 9
ENGLISH
Installation Requirements Checklist
Pleasecheck the followingbeforecontacting a repairservice:
Underthe following circumstances,immediatelystop the operation,disconnectthe manual supplyswitchand contact
theafter-service personnel.
•When control buttonsareinoperable
•When circuit breakerstriprepeatedly
•When the outdoorunitis blocked withiceor foreign objects.
•When the systemfailsto restart afterpowerreset.
•When system operatesabnormally.
FAULTCHECK
All these are not problems
Symptoms Reasons
Running water noise sound Running water sound can be heard during starting operation, during operation
or immediately after stopping operation. When it starts for 2-3 minutes, the
sound may become louder, which is the flowing sound of refrigerant or the
draining sound of condensate water.
Tapping sound During operation, the air conditioner may make a tapping sound, which is
caused from the temperature changes of the heat exchanger.
Bad smell in outlet air Clean filters and confirm the condensate drain pan and line are clean and
clear.
Operating indicator flashing When switching it on again after power failure, turning on the manual power
switch will show the operating indicator flashes.
Waiting Indicator Displayed when the control is set it to the cooing or heating mode and the
current mode of operation is opposite to the requested setting.
Idle indoor unit still has sound of refrigerant
flowing and radiating
temperatures.
Some refrigerant flow is allowed to pass through idle indoor units to prevent oil
and refrigerant from blocking the metering valve. This flow may result in some
radiating temperature and noise.
Clicking sound when unit comes on. The sound is made due to the expansion valve resetting when the unit is
powered on.
Start or stop working automatically Check if it is set to Timer-ON and Timer-OFF.
Please make another check.
Failure to work Check if there is a power failure.
Check if the supply fuse and breaker are disconnected.
Check if the unit is displaying any faults.
Check if wait symbol is displayed. This is due to other indoor units connected
to the same outdoor unit are running in the opposite mode.
System cannot heat and cool simultaneously.
Poor cooling & heating effects Be sure outdoor unit fan inlet and outlets are not blocked.
Check to be sure doors and windows are closed.
Check for dirty or blocked air filter.
Make sure the fan speed is not too low.
Check if the mode set to Fan mode.
Be sure the temperature control is set only correctly.

10 31-5000500 Rev.0
ENGLISH
Thismanual cannot completelyillustrateall the propertiesofthe products thatwerepurchased. Please contactthelocal
Haierdistribution center ifyouhave any questionorrequest.
Indoor Units:
1.The distance betweenairoutlet and thegroundshould
notbe more than9ft(2.7m).
2.Select appropriate placesforinstallation where the
airflowcan be spreadevenlythroughout the space.
Arrangeproper locations forconnectingpipes and lines
aswell as thedrainpipeto the outdoor.
3.Ceiling construction mustbesturdy enough toholdthe
weightof the unit.
4.Make sure thattheconnecting pipe, thedrainpipeand
connectingwiring line canbeput into wallstoconnect
theoutdoor units.
5.It is recommendedtomake the connectingpipe
betweenthe outdoor andindoorunits and thedrainpipe
asshort as possible.
6.Please read theattachedinstallation instructions ofthe
outdoorunit for refrigerantchargingif necessary.
7.The connecting flangeshouldbe checked byusers.
8. Electrical appliancessuchastelevision,instruments,
devices,artwork,piano,wirelessequipmentandother
valuablesshouldnotbeplacedundertheindoorunitastoavoiddamagecausedbycondensateleakingfromtheindoorunit.
The following steps can be taken after selecting the installation location:
1.Cut a holeinthe wall andinsertconnection pipe andconnectingwires through afield
suppliedPVC pipe. Theholeshould be inclinedslightlydownward with aninclinationof
atleast 1/100 (seeFigure1).
2.Before cutting thehole,ensure no pipeorrebar is placedbehindthe cutting position
Avoidcutting a holenearwires or connectionpipes.
3.Hang the unitfromrafters, joists ortrussescapable of supportingtheweight of theunit
Noise,vibration or leakagemayresult from unstableunitmounting.
4.Support the unitfirmlyand shape theconnectionpipe, connecting wiresanddrain pipe toallowthem to easily
getthrough the opening.
WARNING
Protectthe indoor unitfromwinds or earthquake,installaccording to localornational building codes.Improper
installationcan cause personalinjuryand property damage.
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.
Required ToolsforInstallation:
•Brazingtorch
•15%silverphosphorouscopperbrazingalloy
•Wirestripper
•Soap-and-watersolutionorgasleakagedetector
•Torquewrench
•T17mm,22mm,26mm
•Tubingcutter
•Reamingtool
•Flaringtool
•Razorknife
•Measuringtape
•Level
•Vacuumpump
•Microngauge
•Nitrogen
•Mini-SplitAD-87Adapter(1/4”to5/16”)
•Non-adhesiveTape
•AdhesiveTape
•Electricalwiring
INSTALLATIONINSTRUCTIONS
Figure 1