Haier AD072MQERA User manual

Pleasereadthismanualcarefullybeforeusing
Keepthisoperationmanualforfuturereference
Originalinstructions
AD072MQERA
AD092MQERA
AD122MQERA
AD152MQERA
AD182MQERA
AD242MQERA
AD282MQERA
AD302MQERA
AD362MQERA
AD422MQERA
AD482MQERA
AD542MQERA
Indoor UnitOperation &InstallationManual

Contents
If the supply cord isdamaged, it must be replaced bythemanufacturer, itsservice agent or
similarlyqualified personsin ordertoavoida hazard.
Thisappliance isnot intended foruse bypersons(including children)withreduced physical,
sensoryormentalcapabilities,orlackofexperienceandknowledge,unlesstheyhavebeengiven
supervisionorinstructionconcerninguseoftheappliancebyapersonresponsiblefortheirsafety.
Childrenshould be supervisedto ensurethat theydo not playwith theappliance.
Thisappliance can be used bychildrenagedfrom 8 yearsandabove and personswith
reduced physical, sensoryormentalcapabilitiesorlack of experience andknowledge if they
havebeen givensupervisionorinstructionconcerning useofthe applianceinasafe wayand
understandthehazardsinvolved. Childrenshallnot playwiththeappliance. Cleaning anduser
maintenance shallnot be madebychildren without supervision.
The appliancesare not intended tobe operatedbymeansof an externaltimerorseparate
remote-controlsystem.
Keep theappliance anditscordout of reach of childrenlessthan 8years.
Warning
MRVseriesmultipleairconditionersystems
adopttheconsistentrunningmode, bywhich,
allindoorunitscan onlybe heating or
refrigerating operation at the same time.
Toprotectthe compressor,theairconditioner
unit should bepowered on forover12 hours
before using it.
Allindoorunitsof the same refrigerating
systemshould use theunified powerswitch
to ensurethatall indoorunitsareinthe state
of beingpowered on at the same timeduring
the operation of airconditioner.
Yourairconditionermaybesubject to any
change owingto theimprovement of Haier
products.
UserManual
Partsand Functions 1
Safety 2
5
Fault Checkup
6
InstallationProcedures
14
Electrical Wiring
20
Test Run&Fault Code
4
Maintenance
Product Features
1.Functionof centralcontrol
(optional fromour company);
2.Automaticdisplayoffaultdetection;
3.Theair conditionerisprovidedwiththefunction
focompensation forpowersupply.During operation,
whenthepower supplyfailsemergentlyand
resumesagain,theair conditioner returnstothe
workingconditionbeforepowerfailure,if provided
withcompensationfunction.
4.Nowthisindoorunit onlyhaswiredcontroller
function,theindoorunitthathasremotecontroller
function needtosetin factoryespecially.
cooling
dry
heating
indoor
outdoor
indoor
outdoor
max.
min.
max.
min.
max.
min.
max.
min.
DB: 32
WB: 15
DB: 18
DB: 43
DB: -5
DB: 27
DB: 15
DB: 21
DB: -15
WB:23
WB:14
WB:26
OperatingRangeofAirConditioner

1
Partsand Functions
indoorunit
airduct
soft connection
airoutlet port
airinlet port

2
Safety
!!
!!
If theairconditioneristransferredtoanewuser, thismanual shallbetransferredtotheuser,together
withtheconditioner.
Beforeinstallation, besuretoreadSafetyConsiderationsinthismanualfor properinstallation.
Thesafetyconsiderationsstatedbelow isdivided into Warning”and Attention”.The matterson
severeaccidentscausedfromwronginstallation,whichis likelyto lead todeathorseriousinjury, are listed
in Warning”.However, the matterslistedin Attention”arealsolikelycausethe severeaccidents.
Ingeneral, bothofthemaretheimportant itemsrelatedtothesecurity,whichshouldbestrictlyabidedby.
After theinstallation, performtest runtomakesureeverythingisinnormalconditions,andthen operate
and maintain theair conditionerin accordance withthe User Manual. The UserManualshould be delivered
totheuser for proper keeping.
!Warning
!Attention
Theair conditioner shouldbeeffectively grounded.Electricshocksmayoccur if theair conditioner is
ungrounded or inappropriatelygrounded.Thewireforearthingshouldn’tbeconnected totheconnections
onthegaspipe,water pipe,lightningrodor telephone.
The breakerfor electricityleakageshould bemounted.If not, accidentssuchaselectricshocksmayhappen.
Theinstalledair conditioner should be checkedfor electricityleakagebybeing powered.
Iftheambienthumiditybiggerthan80%,whenthewaterdischargeholebeblockedor thefilter becomes
dirty, orairflowspeedchange,theremaybeleadstocondensing waterdropdown,andatthesametime
theremaybesomedropsofwaterspitout.
Pleaseaskthespecial maintenancestationfor installationandrepair. Waterleakage,electricshocksor
fireaccidentsmight becausedfromimproper installationifyouconducttheinstallationbyyour own.
Theinstallation shouldbeconductedproperlyaccordingtothismanual. Water leakage,electricshocksor
fireaccidentsmight becausedfromimproper installation.
Please makesure to install theair conditioner on the place wherecan bearthe weight of the airconditioner.
The air conditioner can’tbe installed on the grids such asthe non-special metal burglar-proofnet. The place
withinsufficientsupport strengthmight causethedropdownofthemachine, whichmaylead topersonal
injuries.
Theinstallationshouldbeensuredagainsttyphoonsandearthquakes,etc. Theinstallationunconformable
totherequirementswillleadtoaccidentsduetothe turnover of themachine.
Specificcablesshould be used for reliableconnectionsofthewirings.Pleasefixtheterminalconnections
reliably toavoidtheoutsideforceapplied on thecablesfrombeingimpressedonthe cables.Improper
connectionsandfixingsmight leadtosuchaccidentsasheatingorfireaccidents.
Correctshapesof wiringsshouldbekept while theembossedshapeisnotallowed.The wiringsshould
be reliably connected toavoidthecover and theplateoftheelectricalcabinetlippingthe wiring.Improper
installationmightcausesuchaccidentsasheatingor fireaccidents.
Whileplacingorreinstallingtheair conditioner,exceptthespecificrefrigerant(R410A), don’t lettheair go
intothe refrigerationcyclesystem.Theair intherefrigerationcycle systemmight leadtothecracking or
personalinjuriesduetoabnormalhigh pressureoftherefrigerationcyclesystem.
During installation,please usethe accompanied spare partsorspecificparts.If not, waterleakage,electric
shocks, fireaccidentsor refrigerant leakagemightbe caused.
Don’tdrainthe waterfromthe drainpipe to the waterspout where mayexistharmfulgasessuchassulfureted
gastoavoid theharmfulgasesentering intotheroom.
Duringinstallation, if refrigerant leakageoccurs, ventilationmeasuresshould be taken, for therefrigerant
gasmightgenerateharmfulgasesuponcontactingtheflame.
Afterinstallation, check if anyrefrigerant leakage exists. If the refrigerant gasleaksinthe room, such things
asair blowingheatersandstoves,etc. maygenerateharmfulgases.
Don’t installthe air conditioner attheplaceswhere the flammable gasesmayleak. In case thegasleakage
occursaround themachine, suchaccidentsasfiredisastersmaybecaused.
Thedrainpipeshouldbeproperlymountedaccordingtothis manualastoensurethesmoothdrainage.In
addition, heatpreservationshould be taken toavoidcondensation. Improperdrainpipemountingmight
causewaterleakage,whichwillget thearticlesat homewet.
Therefrigerantgaspipeand liquidpipe shouldbeheatinsulated topreserveheat. For inappropriateheat
insulation,thewater causedfromthecondensationwilldrop togetthearticle at homewet.

3
Safety
!Attention
Payattention to the
aeration condition
to avoid anoxic
symptom.
It isnot allowed to put anyheating
apparatusunderthe indoorunits, forthe
heat maycause distortion of the units.
Flammableapparatusshould not be placed
in the placewhere the airconditionerwind
could reach directly, orincomplete burning
of the apparatus
maybe caused.
3-minute protection
To protectthe unit, compressorcan be
actuated with at least 3-minute delayafter
stopping.
Close thewindow to avoidoutdoorair
getting in.
Curtainsorwindow
shutterscan be put
down to avoid the
sunshine.
Do notput flammable sprayclose to theair
conditioner.
Don’t injectflammable spraytowardsthe
airconditioner, which may
causefire.
Stopping fan rotation
The unit which stopsoperating willactuate
the fan fora 2-8 min swing every30-60
minutesforprotecting the unit while other
indoorunit are in the operating state.
Powershould be cut off when the air
conditionerisleft unused fora long period.
Powerwillbe consumed if the air
conditionerisnot powered off. The power
switch of the outdoorunitswitch shouldbe
powered on12 hoursin advance before
operation to protect the unit aftera long
period of storage.
Defrosting during heating
To improve theheating effect, the outdoor
unit will performdefrosting automatically
when frost appearson the outdoorunit
during heating (approximately2-10 min).
During defrosting, the fanof the indoorunit
runsat a low speed orstopswhile that of
the outdoorunitstopsrunning.
Donot use waterheaterorlike next to the
indoorunitand the wired controller.
Water/powerleakage orshort circuit may
happen ifthe steamgenerating apparatus
is working next to machine.
Use the fuse with propercapacity.
Metalwiresand copperwires,etc.,
maycause fire orotherfaults.
It cannot be used forthe preservation of
food, living creature, preciseinstrument
and artworks, etc, otherwise damage
mayoccur.
Plantsand animalsshould not be put to
the place where wind ofthe airconditioner
blowsdirectly, otherwise damage to
themmaybe caused.
Checkthe mount table
of the airconditionerfordamage fora long
period of operation.
If placed on thedamaged table, the
unit maydrop down causing damage.
Children should be supervised to ensure
thattheydo not playwith the appliance.
Thisappliance isnot intended foruse by
persons(including children)with
reducedphysical, sensoryormental
capabilities,orlackof experience and
knowledge, unlesstheyhave been given
supervision orinstruction concerning use
of the appliancebya person responsible
fortheirsafety.
Cleaning theunit with watermaycause
electricshock.
Do nottouchthe switchwith the wet
hand to avoid powershock.
Stop running and switch off the manual
powerswitch when cleaningthe
unit.
During the operation of the controlunit,
don’t switch off themanualpowerswitch
and the controllercan be used.Please do
not pressthe liquid crystalzone of
controllerto prevent damage.

4
Maintenance
Onlywhen theaircleanerisswitched offand disconnectedto the powersupplycanitbecleaned,
orelectricshockand injurymayappear.
Maintenance before and afterOperating Season
Before OperatingSeason:
1.Pleasemakethe following checkup. Ifabnormalcondition occurs,consult the after-service
personnel.
There isno blockage in inlet port and outlet port of outdoorand indoorunits.
The ground lineand the wiring areinthe properstate
2.Aftercleaning, the aircleanermustbe mounted.
3. Switchon tothe power.
AfterOperating Season:
1. In sunnydays, blowing operation can beperformed forhalf a dayto make the inside of
machine dry.
2. Electricalpowershould becut down toeconomize electricity, orthe machine willstill
consume power.Aircleanerand shellmust be mountedaftercleaning.
CleaningAirCleaner:
Don’t rinse the aircleanerwith hot waterof above 50 toavoid fading and distorting.
Don’t put theaircleaneronthe fire to dryto avoid catching fire.
Attention
Wipedust with waterordustcollector.
(A)Wipedust withdust collector. (B)Cleanitwith soft bushinmilddetergent
if there istoomuch dust on it
Throwoffthewaterandairing
it inthe cooldrycondition.
CleaningWind Deflector:
Donot wipe the wind deflectorwith waterforciblyto avoid fallingoff.
Cleaningthe airoutlet port and the shell:
Don’t usegasoline,benzene, diluents,polishing powderorliquid insecticideto clean them.
Donot clean them with hot waterof above 50 to avoid fadingordistorting.
Attention
Wipethemwithsoft drycloth.
Waterorneutraldrycleanserisrecommended if the dust cannot be removed.
TheWind Deflectorcan bedismantled to clean (asbelow).

5
Fault Checkup
Waterflow sound
Cracking sound
Terriblesmellin
outletair
Flashingoperating
indicator
Awaiting indication
Soundin
shutdown indoor
unit orwhite
steamorcold air
Clicking sound
whenswitching the
airconditionon
Startorstopworking
automatically
Failureto work
Badcooling&
heating effects
Symptoms Reasons
Waterflow sound can beheardwhen starting operation, during
operation orimmediatelyafterstopping operation. When it starts
toworkfor2-3 minutes, the sound maybecomelouder, whichis
the flowing sound of refrigerant orthedrainingsound of condensed
water.
Duringoperation, the airconditionermaymakethe cracking
sound,whichis caused from the temperaturechangesorthe
slight dilation of heat exchanger.
The terriblesmell, caused from walls,carpet,furniture, clothing,
cigarette and cosmetics, attacheson the conditioner.
Whenswitchingiton againafterpowerfailure,turnonthemanual
powerswitch and theoperating indicatorflashes.
Itdisplaystheawaiting indicationasitfailsto performrefrigerating
operation whileotherindoorunitsarein heating operation. When
theoperatorset itto therefrigerating orheating mode and the
operation isopposite to the setting,itdisplaysthe awaiting indication.
Topreventoilandrefrigerantfromblockingtheshutdownindoor
units,refrigerant flowsintheshorttime and makethe sounds
ofrefrigerantflowing. Otherwise, whenotherindoorunitsperforms
heating operation,white steammayoccur;duringrefrigerating
operation, cold airmayappear.
When theconditionerispowered on, thesound ismade due
tothe resetting of the expansionvalve.
Checkif it isin the state of Timer-ON and Timer-OFF.
Checkif there isapowerfailure.
Checkif the manualpowerswitch isturned off.
Checkif the supplyfuse and breakerare disconnected.
Checkif the protective unit isworking.
Check ifrefrigeratingand heating functionsareselected
simultaneously with the awaiting indication on line control.
Check ifairintakeportandairoutletportof outdoorunitsare
blocked.
Checkif the doorand windowsare open.
Checkifthefiltering screenof aircleanerisblocked with sludge
ordust.
Checkif the setting of wind quantityisatlow wind.
Checkif the setting of operationisat theFan Operation state.
Checkif the temperature setting isproper.
When otherabnormalconditionsoccur.
Underthe followingcircumstances,immediately stop the operation,disconnect themanualsupply
switch andcontact the after-service personnel.
When buttonsare inflexible actuated;
When it cannotstillbe operatedafterremoving the operation of protective unit;
When fuse and breakerhave been burnt overand over;
When there are foreignobjectsand waterin the refrigerator;
Please checkthefollowing when consigningrepairservice:

6
InstallationProcedures
(4)Thedimension of maintenance
Make surethat it iseasyto demount theelectrical
controlbox, fan, montor, filter.
The standardattachedaccessoriesof theunitsof thisseriesrefertothe packing; prepare other
accessoriesaccording tothe requirementsof the localinstallation point of ourcompany.
1. Before installation[beforefinishingtheinstallation,don tthrow away the attachedparts
requiredforthe installation]
Determine theroute tomove theunit to the installation site;
Don’t tearthe package open before moving theunit to the installation site. Whenunpacking is
needed, asoft materialorprotectorblockwithropescanbe usedto lift the unitto avoiddamaging
orscrapingof theunit.
2. Selecttheinstallation site
(1)The installation siteshould be selected according thefollowing conditions, whichshould be
approved byusers.
where an idealairdistributioncanbe ensured;
where there isnoblockagein the airpassage;
where the condensed watercan be drainedout properly;
where the strength canbearthe weight of the indoorunit;
where enough space can beensured formaintenance.The outside airshouldbe input from
the outdoordirectly from the blastpipe.If theblastpipecan’tbe jointed,the aircan’tbe input from
the suspended ceiling.
wherethelengthsof the piping between indoorunitsand outdoorunitsarewithinthe allowable
range (refertoInstallation of OutdoorUnits)
where the distanceof at least 1mbetween indoorunits,outdoorunits,mainssupply, connecting
wiresand television orradio shouldbe kept astoavoid the imagedisturbanceandnoisesof the
above electricalappliances. (Even if 1mcanbe ensured, noise might occurif there isstrong
electricwave.)Additionally, equipments, televisionorothervaluablescan’tbe put underthe unit
astoavoidthe condensed waterof theunitfrom dropping into the abovearticles,causing damaging.
(2)Height of Ceiling:
The ceilingshould be locatedat theplace, where the
centralposition of airoutlet port isless than 3m high
above theground.
(3)Hoistingstudsshouldbe usedduring installation.
Checkif the location can bearthe weight of the unit.
Reinforce it before installation if necessary.
checking
port
A
B
(locationofhangingbolt)
(dimensionsofinspectionholeonceiling)
barrier
checking
port
spaceneeded forinstallation (unit:mm)
D
D
(mm)
C
(mm)
B
(mm)
A
(mm)
AD072-182
MQERA
AD242-302
MQERA
Size
Model
786
986
1100
1300
472
472
635
635
AD362-542
MQERA 14041720 530 738

7
Installation Procedures
NB:
When the sizes of the main unit don"t match the hole on the ceiling, regulate the slot on the hanging
bracket.
Adjust the level with a level meter or according
to the following ways:
Adjusting the level
Make the adjustment as shown in the figure.
(2) If necessary, make a hole for installation and inspection on the ceiling. (used for the situation
with a ceiling)
For the size of the inspection hole on the ceiling, please refer to the above drawing.
Before installation, finish all the preparations for all piping connected to indoor units (refrigerant,
water drainage) and wiring (connection line of the line control, connection line between indoor
units and outdoor unit) so that they can be connected with indoor units right after installation.
For the inspection hole, the ceiling might be reinforced to keep the evenness of the ceiling
and avoid the vibration of the ceiling. For details, please consult the construction contractor.
notch grapping
notch plug plug
concrete
hoisting stud M10
(3) Install the hoisting studs (M10 bolts)
In order to support the weight of the unit, use barb
bolts in the situation with a ceiling. In the situation with
the new ceiling, use inlaid bolts, embedded bolts or
other parts provided on site. Before proceeding the
installation, adjust the gap between the bolt and the
ceiling.
M10 nut hoisting stud
M10 shim
M10 spring washer
main unit
(4) Installation of Indoor Units
Fix the indoor unit with the hoisting stud.
If necessary, the machine can be hanged
on the beam with bolts instead of the
hoisting stud.
3. Preparation before Installation
(1) Location relation between inspection hole on the
ceiling and the unit and the hoisting studs (unit: mm).
top
H
C
E
(mm)
C
(mm)
A
(mm)
AD072-182
MQERA
AD242-302
MQERA
Size
Model
786
986
472
472
750
950
AD362-542
MQERA 1404 530 1368
H
(mm)
695
695
798
level meter

8
InstallationProcedures
0~200
StaticPressureRange
StaticPressureRange
unit: Pa
1.5m~2m
ProperPiping
hangingbolt
heat insultor
gradientof1/100 or over
ImproperPiping
air outlet port
avoidlobing
avoidcurving
don't putpipe
intowater
(a)Keep agradient (1/50-1/100)of thedrainpipesand avoid lobingorcurving.
(c) Forthedrainpipe, the generalpurposehardPVC tube canbepurchased atlocalshops.During
the connection, insertthe end ofPVC tubeinto the washportand fasten itwith drainage hose
andthread clip. Bindingagentsshouldn’tbe used toconnectthewashport and drainage hose.
(b)When connecting the drainpipe to the equipment, don’t applytoo much force on oneside of
theequipment. Meanwhile, thepipingshould be positionedascloseto theequipment as
possible.
512mm
drainpipe 473mm
414mm
gaspipe liquidpipe
468mm
4. Drainpipes
AD072-302MQERA
468mm
405mm
738mm 30mm
30mm
467mm
AD362-542MQERA