ECR International EnviroAir MZI Series, EnviroAir MHA, EnviroAir MWHA Installation, Operation And Maintenance Manual

MZI Series

~16 SEER Inverter

Multi-Zone

Ductless Split Systems

Air Handler (Indoor) Models - MWHA

Condenser (Outdoor) Models - MHA

Installation, Operation and

Maintenance Manual

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An ISO 9001-2008 Certied Company

ECR International, Inc.

2201 Dwyer Avenue,
Utica NY 13501

web site: www.ecrinternational.com

P/N 240009908, Rev B [04/05/2013]

1

REFRIGERANT PIPE CONNECTION

Refrigerant pipe connecti on ..........................................................................................................

ELECTRICAL WORK

Electr ical work .................. ................ .......... ... ...... . .................... .................... ...............................

TEST RUNNING

Test running .................... ............................................................................... ..... ..........................

AIR PURGING

Air purging with vacuum pump ........ .............................................................................................14

Safe ty and leakage check .................................................................................. ......................... .

SOCIABLE REMARK

Sociable remark................... ............................................ .............................. ................................

SAFETY PRECAUTIONS

Warning ...................................................... .................... ....................................................... .......

Caution ........................................ ............................................. ... ........................ .........................

OPERATING INST RUCT IONS

Identification of parts........................................... .......................................................................... ..

Operating temper ature................................ ....................................................................................

Manual opera tion............................................................................................................................

19

20
21

22
22
24
25
26

28

30

32

17

16

13

10

9

2

SAFETYPRECAUTIONS

WARNING

ReadthefollowSAFETYPRECAUTIONScarefullybeforeinstallation.
Electricalworkmustbeinstalledbyalicensedelectrician.Besuretousethecorrectrating
ofthepowerplugandmaincircuitforthemodeltobeinstalled.
Incorrectinstallationduetoignoringoftheinstructionwillcauseharmordamage.

Theseriousnessisclassifiedbythefollowingindications.

Thissymbolindicatesthepossibilityofdeathorseriousinjury.

Theitemstobefollowedareclassifiedbythesymbols:

SymbolwithbackgroundwhitedenotesitemthatisPROHIBITEDfromdoing.

CAUTION

Thissymbolindicatesthepossibilityofinjuryordamagetoproperty.

WARNING

1)Engagedealerorspecialistforinstallation.Ifinstallationdonebytheuserisdefective,itwillcausewater
leakage,electricalshockfire.

2)Installaccordingtothisinstallationinstructionsstrictly.Ifinstallationisdefective,itwillcausewater
leakage,electricalshockfire.

3)Usetheattachedaccessoriespartsandspecifiedpartsforinstallation.otherwise,itwillcausethesettofall,
waterleakage,electricalshockfire.

4)Installatastrongandfirmlocationwhichisabletowithstandthesetsweight.Ifthestrengthisnotenough
orinstallationisnotproperlydone,thesetwilldropandcauseinjury.

,

5)Forelectricalwork,followthelocalnationalwiringstandard,regulationandthisinstallationinstructions.An
independentcircuitandsingleoutletmustbeused.Ifelectricalcircuitcapacityisnotenoughordefectfound
inelectricalwork,itwillcauseelectricalshockfire.

6)Usethespecifiedcableandconnecttightlyandclampthecablesothatnoexternalforcewillbeactedon
theterminal.Ifconnectionorfixingisnotperfect,itwillcauseheat-uporfireattheconnection.

7)Wiringroutingmustbeproperlyarrangedsothatcontrolboardcoverisfixedproperly.Ifcontrolboardcover
isnotfixedperfectly,itwillcauseheat-upatconnectionpointofterminal,fireorelectricalshock.

8)Whencarryingoutpipingconnection,takecarenottoletairsubstancesotherthanthespecified
refrigerantgointorefrigerationcycle.Otherwise,itwillcauselowercapacity,abnormalhighpressure
intherefrigerationcycle,explosionandinjury.

9)Donotmodifythelengthofthepowersupplycordoruseofextensioncord,anddonotsharethe
singleoutletwithotherelectricalappliances.Otherwise,itwillcausefireorelectricalshock.

CAUTION

1)Thisequipmentmustbeearthedandinstalledwithearthleakagecurrentbreaker.Itmaycauseelectrical
shockifgroundingisnotperfect.

2)Donotinstalltheunitatplacewhereleakageofflammablegasmayoccur.Incasegasleaksand
accumulatesatsurroundingoftheunit,itmaycausefire.

3)Carryoutdrainagepipingasmentionedininstallationinstructions.Ifdrainageisnotperfect,water

mayentertheroomanddamagethefurniture.

3

Selectinginstallationplace

Readcompletely,thenfollowstepbystep.

Indoorunit

Donotexposetheindoorunittoheatorsteam.
Selectaplacewheretherearenoobstacles
infrontoraroundtheunit.
Makesurethatcondensationdrainagecan
beconvenientlyroutedaway.
Donotinstallnearadoorway.
Ensurethatthespaceontheleftandright
oftheunitismorethan12cm.
Useastudfindertolocatestudstopreventunnecessarydamagetothewall.
Theindoorunitshouldbeinstalledonthewallataheightof2.0metresormorefromthefloor.
Theindoorunitshouldbeinstalledallowingaminimumclearanceof15cmfromtheceiling.
Anyvariationsinpipelengthwill/mayrequireadjustmenttorefrigerantcharge.
Thereshouldnotbeanydirectsunlight.Otherwise,thesunwillfadetheplasticcabinetand
affectitsappearance.Ifunavoidable,sunlightpreventionshouldbetakenintoconsideration.

Outdoorunit

Ifanawningisbuiltovertheoutdoorunitto
preventdirectsunlightorrainexposure,
makesurethatheatradiationfromthe
condenserisnotrestricted.
Ensurethattheclearancearoundtheback
oftheunitismorethan30cm

.Thefrontoftheunitshould
havemorethan200cmofclearanceandthe
connectionside(rightside)shouldhavemore
than60cmofclearance.
Donotplaceanimalsandplantsinthepathoftheairinletoroutlet.
Taketheairconditionerweightintoaccountandselectaplacewherenoiseandvibration
willnotbeanissue.
Selectaplacesothatthewarmairandnoisefromtheairconditionerdonotdisturbneighbors.

Iftheoutdoorunitisinstalledonaroofstructure,besuretoleveltheunit.
Ensuretheroofstructureandanchoringmethodareadequatefortheunitlocation.
Consultlocalcodesregardingrooftopmounting.
Iftheoutdoorunitisinstalledonroofstructuresorexternalwalls,thismayresultin
excessivenoiseandvibration,andmayalsobeclassedasanonserviceableinstallation.

andleftsideis

morethan30cm

Rooftopinstallation:

INSTALLATIONINSTRUCTIONS

Fig.2

Fig.1

1.Wall-mountedtype

4

Accessories

INSTALLATIONINSTRUCTIONS

Note: Excepttheabovepartsprovided,theotherpartsneededduringinstallationyoumust

purchase.

Levelgauge
Screwdriver
Electricdrill,Holecoredrill(65φ mm)
Flaringtoolset
Specifiedtorquewrenches:1.8kgf.m,4.2kgf.m,

5.5kgf.m,6.6kgf.m(differentdependingonmodelNo.)
Spanner(halfunion)
Hexagonalwrench(4mm)
Gas-leakdetector

Toolsneededforinstallation:

Vacuumpump
Gaugemanifold
Usersmanual
Thermometer
Multimeter
Pipecutter
Measuringtape

Partsyoumustpurchase
Consultthetechnician
forthepropersize.

6.35

9.53

12.7

6

2

Self-tappingScrewBST2.9X10

Remotecontroller

InstallationPlate

NameofAccessories

Self-tappingScrewAST3.9X25

Seal(forcooling&heatingmodelsonly)

DrainJoint

Magneticring
(Hitchitontheconnectivecablebetweenindoor
unitandoutdoorunitafterinstallation.)

Transferconnector

()
(Pipesizedifferfromappliancetoappliance.
Tomeetdifferentpipesizerequirement,sometimes

thepipeconnectionsneedthetransferconnector
toinstallontheoutdoorunit.)

NOTE:

Packedwiththeindoorunit

Connecting

pipe

Assembly

Liquidside

PlasticExpansionSheath

Number

Qty/oneunit’

Gasside

7

Remotecontrollerholder

1

(forcooling&heatingmodelsonly)

1

5-8

(dependingonmodels)

5-8

(dependingonmodels)

1

1

Optionalpart

(onepiece/onecable)

1

(onsomemodels)

1

5

4

9

11

10

8

3

2

1

Optional
parts

Thisillustrationisforexplanationpurposesonly.
Theactualshapeofyouraircondtionermaybe
slightlydifferent.
Copperlinesmustbeinsulatedindependently

Useastudfindertolocatestudstoprevent
unnecessarydamagetothewall.
Aminimumpiperunof3metresisrequired
tominimisevibration&excessivenoise.
TwooftheA,BandCdirectionsshouldbe
freefromobstructions.

CAUTION

INSTALLATIONINSTRUCTIONS

5

CAUTIONS

One-Two
One-Three
One-Four

One-Five

Remote
controller

Remote
controller

Remote
controller

Remote
controller

Morethan15cm

Remote
controller

A

B

C

Airout

Loopa
connective
cable

1

2

3

4

5

6

Fig.3

6

INSTALLATIONINSTRUCTIONS

Fig.4

Correctorientation
ofInstallationPlate

Wall

Indoor

Outdoor

Fig.6

Fig.5

Indoorunitinstallation(wall-mountedtype)

2.Drillaholeinthewall

Note:

1.FittheInstallationPlate

1.Fittheinstallationplatehorizontally
onstructuralpartsofthewallwith
spacesaroundtheinstallationplate.

2.Ifthewallismadeofbrick,concrete
orthelike,drillfiveoreight5mmdiameter
holesinthewall.InsertClipanchorfor
appropriatemountingscrews.

3.Fittheinstallationplateonthewall
withfiveoreighttype “A” screws.

FittheInstallationPlateanddrill
holesinthewallaccordingtothe
wallstructureandcorresponding
mountingpointsontheinstallation
plate.TheInstallationPlatemaybe
slightlydifferentaccordingtothe
differentmodelsofindoorunit.

(Dimensionsarein “mm” unless

otherwisestated)

1.Determineholepositionsaccording
tothediagramdetailedinFig.5.Drill
one(1)hole(65mm)slantingslightly
tooutdoorside.

2.Alwaysusewallholeconduitwhen
drillingmetalgrid,metalplateorthelike.

φ

3.ConnectivePipeandDrainage
Installation

1.Runthedrainhoseslopingdownward.

Donotinstallthedrainhoseas
illustratedinFig.7.

Drainage

Fig.7

Donotblockwaterflowbyarise.

Donotputtheendof
drainhoseintowater.

150mmormoretoceiling

Indoorunitoutline

Installationplate

Rightrearside
refrigerant
pipehole65

φ

Leftrearside
refrigerant
pipehole65

φ

120mmor
moretowall

120mmor
moretowall

918

190

150

A

Rightrearside
refrigerant
pipehole65

φ

Installationplate

Indoorunitoutline

Leftrearside
refrigerant
pipehole65

φ

150mmormoretoceiling

120mmor
moretowall

120mmor
moretowall

ModelA(A:710,B:250,C:100,D:110)

ModelA(A:710,B:250,C:100,D:110)

ModelA(A:920,B:293,C:150,D:185)

ModelB()A:790,B:265,C:100,D:150

ModelB()A:790,B:275,C:100,D:85

ModelC()A:850,B:290,C:100,D:115

ModelB()A:995,B:293,C:150,D:200
ModelC()A:850,B:305,C:150,D:145

C

D

7

INSTALLATIONINSTRUCTIONS

1.Fortheleft-handandright-handpiping,
removethepipecoverfromtheside
panel.

2.Fortherear-right-handandrear-left-hand
piping,installthepipingasshowninFig.10.

3.Fixtheendoftheconnectivepipe.(Refer
toTighteningConnectioninREFRIGERANT
PIPINGCONNECTION)

Connectivepipeinstallation

2.Whenconnectingextensiondrainhose,
insulatetheconnectingpartofextension
drainhosewithashieldpipe,donotlet
thedrainhoseslack.

Right-handpiping

Left-handpiping

Rear-rightpiping

Rear-leftpiping

Fig.8

Fig.9

Fig.10

4.Pipingandwrapping

Bundlethetubing,connectingcable,anddrain
hosewithtapesecurely,evenlyasshownin
Fig.11.

Becausethecondensedwaterfromrearofthe
indoorunitisgatheredinpondingboxandis
pipedoutofroom.Donotputanythingelsein
thebox.

Indoorunit

Connective
pipe

Piperoom

Pondingbox

Wrappingbelt

Connective
cable

Drainhose

Fig.11

Connecttheindoorunitfirst,thenthe
outdoorunit.
Donotallowthepipingtoletoutfrom
thebackoftheindoorunit.
Becarefulnottoletthedrainhoseslack.
Heatinsulatedbothoftheauxiliarypiping.
Besurethatthedrainhoseislocatedat
thelowestsideofthebundle.Locating
attheuppersidecancausedrainpan
tooverflowinsidetheunit.
Neverintercrossnorintertwistthepower
wirewithanyotherwiring.
Runthedrainhoseslopeddownwardto
drainoutthecondensedwatersmoothly.

CAUTION

8

INSTALLATIONINSTRUCTIONS

Fig.12

1.Passthepipingthroughtheholeinthe
wall.

2.Puttheupperclawatthebackofthe
indoorunitontheupperhookofthe
installationplate,movetheindoorunit
fromsidetosidetoseethatitissecurely
hooked(seeFig.12).

3.Pipingcaneasilybemadebyliftingthe
indoorunitwithacushioningmaterial
betweentheindoorunitandthewall.
Getitoutafterfinishpiping.

4.Pushthelowerpartoftheindoorunitup
onthewall,thenmovetheindoorunit
fromsidetoside,upanddowntocheck
ifitishookedsecurely.

4.Indoorunitinstallation

(R410A)

Max.50m

(R407c/R22)

Max.10m

Max.5m

(R410A)

(R407c/R22)

10.5KW

7

Settlementofoutdoorunit

Anchortheoutdoorunitwith
aboltandnut10or8tightly
andhorizontallyonaconcrete
orrigidmount.

φφ

Fig.45

Installtheoutdoorunitonarigidbaseto
preventincreasingnoiselevelandvibration.
Determinetheairoutletdirectionwherethe
dischargedairisnotblocked.Inthecasethat
theinstallationplaceisexposedtostrongwind
suchasaseaside,makesurethefanoperating
properlybyputtingtheunitlengthwisealongthe
wallorusingadustorshieldplates.
Speciallyinwindyarea,installtheunittoprev­enttheadmissionofwind.Ifneedsuspending
installation,theinstallationbracketshould
accordwithtechniquerequirementinthe
installationbracketdiagram.
Theinstallationwallshouldbesolidbrick,
concreteorthesameintensityconstruction,or
actionstoreinforce,dampingsupportingshould
betaken.Theconnectionbetweenbracketand
wall,bracketandtheairconditionershouldbe
firm,stableandreliable.
Besurethereisnoobstaclewhichblock
radiatingair.

Strong

wind

Fig.44

Outdoorunitinstallation

Outdoorinstallationprecaution

INSTALLATIONINSTRUCTIONS

530

560

290
335

624

366

590

333

760x590x285
845x700x320

900x860x315
990x965x345

L2(mm)

W2(mm)

Mountingdimensions

9

Fitthesealintothedrainjoint,theninsertthe
drainjointintothebasepanholeofoutdoorunit,
rotate90tosecurelyassemblethem.
Connectingthedrainjointwithanextensiondrain
hose(Locallypurchased),incaseofthewater
drainingofftheoutdoorunitduringtheheating
mode.

。

Drainjointinstallation

Seal

Drainjoint

Basepanholeof
outdoorunit

Seal

Drainpipe

Refrigerantpipeconnection

Oblique

90

。

Roughness Burr

Maincauseforrefrigerantleakage
isduetodefectintheflaringwork.
Carryoutcorrectflaringwork
usingthefollowingprocedure:

1.Usethepipingkitaccessoryorpipes
purchasedlocally.

2.Measurethedistancebetweentheindoor
andtheoutdoorunit.

3.Cutthepipesalittlelongerthanthe
measureddistance.

4.Cutthecable1.5mlongerthanthepipe
length.

A:Cutthepipesandthecable.

1.Flaringwork

Fig.46

B:Burrremoval

1.Completelyremoveallburrsfromthecut
crosssectionofpipe/tube.

2.Puttheendofthecoppertube/pipeina

downwarddirectionasyouremoveburrsin
ordertoavoiddroppingburrsintothetubing.

Pipe

Reamer

Pointdown

Fig.47

Fig.48

C:Puttingnuton

Removeflarenutsattachedtoindoorand
outdoorunit,thenputthemonpipe/tube

havingcompletedburrremoval.(notpossible
toputthemonafterflaringwork)

Flarenut

Coppertube

Fig.49

REFRIGERANTPIPECONNECTION

(1)

(2)

NOTE:Thedrainjointdifferfromappliance
toappliance.

10

ELECTRICALWORK

Bar

Copperpipe

Clamphandle

Redarrowmark

Cone

Yoke

Handle

Bar

Fig.50

D:Flaringwork

Firmlyholdcopperpipeinadieinthe
dimensionshowninthetablebelow.

Caution

Alignthecenterofthepipes.
Sufficientlytightentheflare

nutwithfingers,andthentighten
itwithaspannerandtorquewrench
asshowninFig.51&52.

TighteningConnection

Excessivetorquecanbreaknut
dependingoninstallationconditions.

Outerdiam.

(mm)

A(mm)

Max.

Min.

6.35 1.3 0.7

9.53

1.6 1.0

12.7

1.8

1.0

Fig.52

Indoorunittubing Flarenut Pipings

Fig.51

ElectricsafetyregulationsfortheinitialInstallation

1.Ifthereisserioussafetyproblemaboutthepowersupply,thetechniciansshouldrefuse
toinstalltheairconditionerandexplaintotheclientuntiltheproblemissolved.

2.Powervoltageshouldbeintherangeof90%~110%ofratedvoltage.

3.Thecreepageprotectorandmainpowerswitchwitha1.5timescapacityofMax.Current
oftheunitshouldbeinstalledinpowercircuit.

4.Ensuretheairconditionerisgroundedwell.

7.Anindividualbranchcircuitandsinglereceptacleusedonlyforthisairconditionermustbeavailable.

5.AccordingtotheattachedElectricalConnectionDiagramlocatedonthepaneloftheoutdoor
unittoconnectthewire.

6.Allwiringmustcomplywithlocalandnationalelectricalcodesandbeinstalled
byqualifiedandskilledelectricians.

12.7

1.8

1.0

Electricalwork

Outer

diam.

Tightening

torque(N.cm)

Additionaltightening

torque(N.cm)

6.35

12.7

9.52

1500

(153kgf.cm)

1600

(163kgf.cm)

3500

(357kgf.cm)

3600

(367kgf.cm)

2500

(255kgf.cm)

2600

(265kgf.cm)

11

ELECTRICALWORK

Fig.53

Connectthecabletotheoutdoorunit

1.Removetheelectricalcontrolboardcover
fromtheoutdoorunitbylooseningthescrew
asshowninFig.53.

2.Connecttheconnectivecablestothe
terminalsasidentifiedwiththeirrespective
matchednumbersontheterminalblockof
indoorandoutdoorunits.

3.Securethecableontothecontrolboardwith
thecordclamp.

4.Topreventtheingressofwater,fromaloop
oftheconnectivecableasillustratedinthe
installationdiagramofindoorandoutdoor
units.

5.Insulateunusedcords(conductors)with
PVC-tape.Processthemsotheydonot
touchanyelectricalormetalparts.

Wiringconnection

NOTE:Beforeperforminganyelectrical
work,turnoffthemainpowertothesystem.

ConnectionCable

10mm

40mm

CAUTIONS

Donottouchthecapacitorevenifyou
havedisconnectedthepowerforthereis
stillhighvoltagepoweronit,orelectric
shockhazardmayoccur.Foryoursafety,
youshouldstartrepairingatleast5minutes
laterafterthepowerisdisconnected.

ThepowerissuppliedfromtheOutdoor
Unit.TheIndoorUnitsareconnected
withsignalwiresorpowercordsare
connectedreliablyandcorrectly,orthe
airconditionercouldnotrunnormally.

Fig.54

CAUTIONS

Makesuretoconnecttheindoorunit(A,B,C,D,
E)totheHiandLovalveandterminalsofsignal
wires(A,B,C,D,E)ofoutdoorunitasidentified
withtheirrespectivematchedconnection.
Wrongwiringconnectionsmaycausesome
electricalpartstomalfunction.

Minimumnorminalcross-sectionalarea
ofconductors:

Ratedcurrentofappliance

(A)

Nominalcross-sectional
area(mm)

2

>3and<6
>6and<10

>10and<16
>16and<25

0.75
1

1.5

2.5

Screw

Cover

Connectivecable
ofindoorunitand
outdoorunit

Connectivecable
ofindoorunitand
outdoorunit

Connectivecable
ofindoorunitand
outdoorunit

Connectivecable
ofindoorunitand
outdoorunit

Connectivecable
ofindoorunitand
outdoorunit

One-two One-three One-four

One-five

POWER

E

E

12

POWER

L

N

TOA

TOB

L(A)

L(B)

N(A) N(B)

S(A)

S(B)

One-twomodels:

One-threemodels:

One-fourmodels:

One-fivemodels:

Fig.55

L

N

S(A)

L(A)

N(A)

TOA

TOA

L

N

L(A)

N(A)

S(A)

NOTE:pleaserefertothefollowingfigures,iftheclientwantwirebythemselves.

ELECTRICALWORK

L2

S

L2L1L1

SUPPLY

S

TOA

L2

L1

L1

L2

SUPPLY

Y/G

Y/G

Y/G

TOA

TOA

TOB

L1

L2

SUPPLY

SUPPLY

Y/G

Y/G

Y/G

Y/G

Y/G

Y/G

TOB

TOC

TOC

TOD

TOD

TOE

L1

L2

ModelA

ModelA

ModelA

ModelA

ModelB

Magneticring(notsupplied,
optionalpart)

ModelB

ModelB

ModelB

L N

TOB

TOA

L(B)

N(B)

S(B)

L(A)

N(A)

S(A)

(Usedtohitchtotheconnective
cableofindoorandoutdoor
unitsafterinstallation.)

13

Aftertheconfirmationoftheaboveconditions,preparethewiringasfollows:

1)Neverfailtohaveanindividualpowercircuitspecificallyfortheairconditioner.Asfor
themethodofwiring,beguidedbythecircuitdiagrampostedontheinsideofcontrol
cover.

2)Thescrewwhichfastenthewiringinthecasingofelectricalfittingsareliabletocome

loosefromvibrationstowhichtheunitissubjectedduringthecourseof
transportation.Checkthemandmakesurethattheyarealltightlyfastened.(Ifthey
areloose,itcouldcauseburn-outofthewires.)

3)Specificationofpowersource.

4)Confirmthatelectricalcapacityissufficient.

5)Seetothatthestartingvoltageismaintainedatmorethan90percentoftherated

voltagemarkedonthenameplate.

6)Confirmthatthecablethicknessisasspecifiedinthepowersourcespecification.

7)Alwaysinstallanearthleakagecircuitbreakerinawetormoistarea.

8)Thefollowingwouldbecausedbyvoltagedrop.

Vibrationofamagneticswitch,whichwilldamagethecontactpoint,fusebreaking,disturbanceofthe

normalfunctionoftheoverload.

9)Themeansfordisconnectionfromapowersupplyshallbeincorporatedinthefixed
wiringandhaveanairgapcontactseparationofatleast3mmineachactive(phase)
conductors.

Airandmoistureintherefrigerantsystemhaveundesirableeffectsasindicatedbelow:

Pressureinthesystemrises.
Operatingcurrentrises.
Coolingorheatingefficiencydrops.
Moistureintherefrigerantcircuitmayfreezeandblockcapillarytubing.

Watermayleadtocorrosionofpartsintherefrigerationsystem.
Therefore,theindoorunitandtubingbetweentheindoorandoutdoorunitmustbeleaktested
andevacuatedtoremoveanynoncondensablesandmoisturefromthesystem.

●

●

●

●

●

Airpurgingwithvacuumpump

●

Preparation
Checkthateachtube(bothliquidandgassidetubes)betweentheindoorandoutdoorunits
havebeenproperlyconnectedandallwiringforthetestrunhasbeencompleted.Remove
theservicevalvecapsfromboththegasandtheliquidsideontheoutdoorunit.Notethat
boththeliquidandthegassideservicevalvesontheoutdoorunitarekeptclosedatthis
stage.

●

Pipelengthandrefrigerantamount:

Connective
pipelength

Lessthan5m

Morethan5m

Airpurging
method

Usevacuum
pump.

Usevacuum
pump.

Additionalamountofrefrigeranttobecharged

AIRPURGING

Airpurging

R22:(Pipelength-5m)x30g/m
R410A:(Pipelength-5m)x15g/m
R407c:(Pipelength-5m)x30g/m

14

AIRPURGING

Whenrelocatetheunittoanotherplace,

performevacuationusingvacuumpump.

Makesuretherefrigerantaddedintotheair

conditionerisliquidforminanycase.

(NotapplicabletotheunitsadoptfreonR22)

Openthevalvestemuntilithitsagainstthe

stopper.Donottrytoopenitfurther.

Securelytightenthevalvestemcapwitha

spannerorthelike.

Valvestemcaptighteningtorque(See

Tighteningtorquetableinpreviouspage).

Outdoor
unit

Indoor
unit

Refrigerant

Flarenut

Stopper

Cap

Valvebody

Packedvalve Halfunion

Gasside

Liquidside

A

C
D

B

Valvestem

Fig.56

Fig.57

WhenUsingtheVacuumPump

(Formethodofusingamanifoldvalve,refer
toitsoperationmanual.)

1.Completelytightentheflarenuts,A,B,C,D,

valvechargehosetoa
chargeportofthelow-pressurevalveonthe
gaspipeside.

2.Connectthechargehoseconnectiontothe
vacuumpump.

3.FullyopenthehandleLoofthemanifoldvalve.

4.Operatethevacuumpumptoevacuate.After

slightlyloosetheflarenut
oftheLovalveonthegaspipeside
checkthattheairisentering(Operationnoise

pumpchangesanda

commeterindicates0insteadofminus)

5.Aftertheevacuationiscomplete,fullyclose
manifoldvalveandstop

theoperationofthevacuumpump.Make
evacuationfor15minutesormore

compoundmeterindicates

-76cmHg(-1x10Pa).

6.TurnthestemofthepackedvalveBabout

45counterclockwisefor6~7secondsafter
thegascomingout,thentightentheflarenut
again.Makesurethepressuredisplayinthe
pressureindicatorisalittlehigherthanthe
atmospherepressure.

7.RemovethechargehosefromtheLow

pressurechargehose.

8.FullyopenthepackedvalvestemsBandA.

9.Securelytightenthecapofthepackedvalve.

connectthemanifold

startingevacuation,

and

ofthevacuum

pound

thehandleLoofthe

andcheck

thatthe

5

o

Manifoldvalve

Compoundmeter

-76cmHg

HandleLo

HandleHi

Chargehose

Chargehose

Vacuumpump

Pressuregauge

Lowpressurevalve

Fig.58

Cautioninhandlingthepackedvalve

15

Performtheelectricsafecheckafter
completinginstallation:

1.Insulatedresistance
Theinsulatedresistancemustbemorethan
2M.

2.Groundingwork

Afterfinishinggroundingwork,measurethe

groundingresistancebyvisualdetectionand
groundingresistancetester.Makesurethe
groundingresistanceislessthan4.

3.Electricalleakagecheck(performingduring
testrunning)
Duringtestoperationafterfinishinginstallation,
theservicemancanusetheelectroprobeand
multimetertoperformtheelectricalleakage
check.Turnofftheunitimmediatelyifleakage
happens.Checkandfindoutthesolution
waystilltheunitoperateproperly.

Ω

Ω

A:LopackedvalveB:Hipackedvalve
CandDareendsofindoorunitconnection.

CAUTION

Electricalsafetycheck●

Gasleakcheck●

1.
Applyasoapwateroraliquidneutral

detergentontheindoorunitconnection
oroutdoorunitconnectionsbyasoft
brushtocheckforleakageofthe
connectingpointsofthpiping.Ifbubbles
comeout,thepipeshaveleakage.

2.

Soapwatermethod:

Leakdetector

Usetheleakdetectortocheckforleakage.

Safetyandleakagecheck

15

Indoorunit
checkpoint

Outdoorunit
checkpoint

n

m

k

j

i

h

A

B

C

a

c

b

d

e

f

a,b,c,d,h,i,j,karepointsforone-twotype.

a,b,c,d,e,f,,h,i,j,k,m,narepointsforone-threetype.

A,B,C,Darepointsforone-fourtype.
A,B,C,D,Earepointsforone-fivetype.

Indoorunit
checkpoint

Outdoorunit
checkpoint

AIRPURGING

Fig.59

Fig.60

NOTE: Theillustrationisforexplanation
purposeonly.TheactualorderofA,B,C
DandEonthemachinemaybeslightly
differentfromtheunityoupurchased.The
actualshapeshallprevail.

E

16

Testrunning

Performtestoperationaftercompletinggasleakcheckattheflarenutconnectionsand
electricalsafetycheck.

Checkthatalltubingandwiringhavebeenproperlyconnected.
Checkthatthegasandliquidsideservicevalvesarefullyopen.

1.Connectthepower,presstheON/OFFbuttonontheremotecontrollertoturntheuniton.

2.UsetheMODEbuttontoselectCOOL,HEAT,AUTOandFANtocheckifallthefunctions
workswell.

3.Whentheamienttemperatureistoolow(lowerthan17C),theunitcannotbecontrolledby
theremotecontrollertorunatcoolingmode,manualoperationcanbetaken.Manual
operationisusedonlywhentheremotecontrollerisdisableormaintenancenecessary.

PresstheManualcontrolbuttontoselecttheAUTOorCOOL,theunitwilloperateunder
ForcedAUTOorCOOLmode(seeUserManualfordetails).

4.Thetestoperationshouldlastabout30minutes.

Holdthepanelsidesandliftthepaneluptoanangleuntilitremainsfixedwithaclicking
sound.

Manualcontrol

Button

TESTRUNNING

Fig.61

Manualcontrol

button

AUTO/COOL

17

Beforeusingyourairconditioner,pleaseread

thismanualcarefullyandkeepitforfuturereference.

INVERTERONE-TWO/ONE-THREE/ONE-FOURSPLIT-TYPE

ROOMAIRCONDITIONER

ReadThisManual

Insideyouwillfindmanyhelpfulhintsonhow
touseandmaintainyourairconditionerproperly.
Justalittlepreventativecareonyourpartcan
saveyouagreatdealoftimeandmoneyover
thelifeofyourairconditioner.You'llfindmany
answerstocommonproblemsinthechartof
troubleshootingtips.Ifyoureviewthechartof
TroubleshootingTipsfirst,youmaynotneed
tocallforservice.

18

SOCIABLEREMARK

DISPOSAL: Donotdisposethisproductasunsortedmunicipalwaste.Collectionofsuchwaste
separatelyforspecialtreatmentisnecessary.

Itisprohibitedtodisposeofthisapplianceindomestichouseholdwaste.
Fordisposal,thereareseveralpossibilities:
A)Themunicipalityhasestablishedcollectionsystems,whereelectronicwastecanbedisposedofat

leastfreeofchargetotheuser.
B)Whenbuyinganewproduct,theretailerwilltakebacktheoldproductatleastfreeofcharge.
C)Themanufacturewilltakebacktheoldappliancefordisposalatleastfreeofchargetotheuser.
D)Asoldproductscontainvaluableresources,theycanbesoldtoscrapmetaldealers.

Wilddisposalofwasteinforestsandlandscapesendangersyourhealthwhenhazardoussubstances
leakintotheground-waterandfindtheirwayintothefoodchain.

WhenusingthisairconditionerintheEuropeancountries,thefollowinformationmustbe
followed:

19

SAFETYPRECAUTIONS

Topreventinjurytotheuserorotherpeopleandpropertydamage,thefollowinginstructionsmustbe
followed.Incorrectoperationduetoignoringofinstructionsmaycauseharmordamage.

Theseriousnessisclassifiedbythefollowingindications.

Thissymbolindicatesthepossibilityofdeathorseriousinjury.

Meaningsofsymbolsusedinthismanualareasshownbelow.

WARNING

Alwaysdothis.

Neverdothis.

CAUTION

Thissymbolindicatesthepossibilityofinjuryordamagetoproperty.

Connectwiththepower
properly.

Donotmodifypowercord
lengthorsharetheoutlet
withotherappliances

Alwaysensureeffective
earthing.

Disconnectthepowerif
strangesounds,smell,or
smokecomesfromit.

Ventilateroombeforeoperatingair
conditionerifthereisagasleakagefrom
anotherappliance.

Otherwise,itmaycauseelectric
shockorfireduetoheat
generation.

excess

Itmaycauseelectricshockor
fireduetoheatgeneration.

Noearthingmaycauseelectric
shock.

Itmaycausefireandelectric
shock.

Itmaycauseexplosion,fireand,burns.

Itmaycauseelectricshockorfire
duetoheatgeneration.

Itmaycauseelectricshock.

Itmaycausefailureofmachine
orelectricshock.

Itcontainscontaminantsand
couldmakeyousick.

Itmaycausefireandelectric
shock.

Itmaycauseelectricshockorfire.

Thiscoulddamageyourhealth.

Noinstallationmaycausefire
andelectricshock.

Itmaycauseelectricshock.

Itmaycauseanexplosionorfire.

Itmaycausefailureandelectricshock.

Donotoperateorstopthe
unitbyswitchingonoroff
thepower.

Donotoperatewithwet
handsorindamp
environment.

Donotallowwatertorun
intoelectricparts.

Donotdrinkwaterdrained
fromairconditioner.

Donotusethepowercord
closetoheatingappliances.

Donotdamageorusean
unspecifiedpowercord.

Donotdirectairflowat
roomoccupantsonly.

Alwaysinstallcircuit
breakerandadedicated
powercircuit.

Donotopentheunit
duringoperation.

Donotusethepowercordnear
flammablegasorcombustibles,such
asgasoline,benzene,thinner,etc.

Donotdisassembleormodifyunit.

WARNING

Usethecorrectlyrated
breakerorfuse.

Thereisriskoffireorelectric
shock.

20

SAFETYPRECAUTIONS

CAUTION

Whentheairfilteristobe
removed,donottouchthe
metalpartsoftheunit.

Itmaycauseaninjury.

Donotcleanunitwhen
powerisonasitmaycause
fireandelectricshock,itmay
causeaninjury.

Operationwithwindows
openedmaycausewetting
ofindoorandsoakingof
householdfurniture.

Whentheunitistobe
cleaned,switchoff,andturn
offthecircuitbreaker.

Stopoperationandclose
thewindowinstormor
hurricane.

Usecautionwhenunpacking
andinstalling.Sharpedges
couldcauseinjury.

Donotcleantheair
conditionerwithwater.

Watermayentertheunitand
degradetheinsulation.Itmay
causeanelectricshock.

Thiscouldinjurethepetor
plant.

Donotputapetorhouse
plantwhereitwillbe
exposedtodirectairflow.

Ventilatetheroomwell
whenusedtogether
withastove,etc.

Anoxygenshortage
mayoccur.

Donotusethisaircond­itionertopreservepreci­siondevices,food,pets,
plants,andartobjects.
Itmaycausedeterioration
ofquality,etc.

Itmaycausefailureof
productorfire.

Donotusefor
specialpurposes.

Turnoffthemainpower
switchwhennotsing
theunitforalongtime.

u

Ifwaterentersthe
unit,turntheunitoff
anddisconnectthe
power,contacta
qualifiedservice
technician.

Itmaycausefailureof
applianceoraccident.

Appearancemaybe
deterioratedduetochange
ofproductcoloror
scratchingofitssurface.

Donotplaceobstacles
aroundair-inletsorinside
ofair-outlet.

Donotusestrongdetergent
suchaswaxorthinner.Use
asoftclothforcleaning.

Ifbracketisdamaged,there
isconcernofdamagedueto
fallingofunit.

Thereisdangeroffireor
electricshock.

Ensurethattheinstallationbracketof
theoutdoorapplianceisnotdamaged
duetoprolongedexposure.

Donotplaceheavyobjectonthe
powercordandtakecaresothat
thecordisnotcompressed.

Operationwithoutfilters
maycausefailure.

Alwaysinsertthefilters
securely.Cleanfilter
onceeverytwoweeks.

21

OPERATINGINSTRUCTIONS

Indoorunit

Outdoorunit

Identificationofparts

Indoorunit

Outdoorunit

One-twin

One-three

One-four

9

10.Drainhose,refrigerantconnectingpipe

11.Connectivecable

12.Stopvalve

13.Fanhood

10

11

12

13

1.Panelframe

2.Rearairintakegrille

3.Frontpanel

4.AirPurifyingfilter&Airfilter(behind)

5.Horizontallouver

6.LCDdisplaywindow

7.Verticallouver

8.Manualcontrolbutton(behind)

9. Remotecontrollerholder

22

AUTOoperationdisplay

DisplayedduringAutooperation.

OPERATIONdisplay

Displayedwhentheairconditionerisin
operation.

DEFROSToperationdisplay

(ForHeating&Coolingmodelonly):

Displayedwhentheairconditionerstarts
defrostingautomaticallyorwhenthewarm
aircontrolfeatureisactivatedinheating
operation.

TIMERdisplay

DisplayedduringTimeroperation.

TURBOoperationdisplay

DisplayedwhenselectTURBOfunction
oncoolingoperationoronheating
operation.

DIGITALDISPLAY

Displaysthecurrentsettingtemper­aturewhentheairconditionerisin
operation.

FANSPEEDdisplay

Displayedtheselectedfanspeed:
LOW(),MED()and
HIGH().

OPERATINGINSTRUCTIONS

Thisdisplayisseparatedintofivezones.
Thezonesilluminatebasedonthe
compressorcurrentfrequency.Forexample,
higherfrequencywillilluminatemorezones.

Frequencyindicationlamp

23

Manuloperationcanbeusedtemporarilyincaseyoucannotfindtheremotecontrolleror
testrunningpurposeormaintenancenecessary.

OPERATINGINSTRUCTIONS

Manualoperation

NOTE:ThismanualdoesnotincludeRemoteControllerOperations,seethe
<<RemoteControllerInstruction>>packedwiththeunitfordetails.

Operatingtemperature

Manual

controlbutton

AUTO/COOL

ModelA

ModelB

Manual

controlbutton

ForDUCTandCEILINGtype,CASSETTE
type,CEILINGandFLOORtypeandFLOORand
STANDINGtype,pleaserefertothepreviouspages
tooperatetheManualbutton.

NOTE:

Openandliftthefrontpaneluptoanangle
untilitremainsfixedwithaclickingsound.
Forsomemodels,themanualcontrolbuttonis
locatedatthebottomoftheunit.

Closethepanelfirmlytoitsoriginal
position.

Onepressofthemanualcontrolbuttonwill
leadtotheforcedAUTOoperation.Ifpress
thebuttontwicewithinfiveseconds,theunit
willoperateunderforcedCOOLoperation.

1

3

2

NOTE:Theunitmustbeturnedoffbefore
operatingthemanualcontrolbutton.Ifthe
unitisoperational,continuepressingthe
manualcontrolbuttonuntiltheunitisoff.

Mode

Temperature
Roomtemperature

Outdoortemperature

1.Optimumperformancewillbeachievedwithintheseoperatingtemperatures.Ifair
conditionerisusedoutsideoftheaboveconditions,certainsafetyprotectionfeatures
mightcomeintooperationandcausetheunittofunctionabnormally.

2.Iftheairconditioneroperatesinaroomwhoserelativehumidityislessthan80%
thesurfaceoftheairconditionermayattractcondensation.Pleasesetsthevertical
airflowlouvertoitsmaximumangle(verticallytothefloor),andsetHIGHfanmode.

Suggestion: FortheunitadoptsanElectricHeater,whentheoutsideambienttemperature

isbelow0C(32F),westronglyrecommendyoutokeepthemachinepluggedinorderto

guaranteeitrunningsmoothly.

OO

NOTE:

Coolingoperation

Heatingoperation Dryingoperation

1762

-15505122

Forthemodelswithlow

temperaturecoolingsystem

050

32122

3088

-1534
592

1050

050

32122

Manualcontrolbutton

24

OPERATINGINSTRUCTIONS

Airflowdirectioncontrol

Adjusttheairflowdirectionproperlyotherwise,it
mightcausediscomfortorcauseunevenroom
temperatures.
Adjustthehorizontallouverusingtheremote
controller.
Adjusttheverticallouvermanually.

Tosettheverticalairflow(Up--Down)direction

Performthisfunctionwhiletheunitisinoperation.
Usetheremotecontrollertoadjusttheairflow
direction.Thehorizontallouvercanbemovedat
arangeof6Oforeachpress,orswingupanddown

automatically.PleaserefertotheREMOTE
CONTROLLEROPERATIONMANUALfordetails.

Tosetthehorizontalairflowdirection(left-right)
Movetheverticallouvermanuallytoadjusttheair
flowinthedirectionyouprefer.

Beforeadjustingtheverticallouvers,
thesupplypowermustbedisconnected.
Forsomemodels,theverticallouvercanbeadjusted
byusingtheremotecontroller.Pleaserefertothe

REMOTECONTROLLEROPERATIONMANUAL

fordetails.

IMPORTANT:

Donotoperatetheairconditionerforlongperiodswith
theairflowdirectionsetdownwardincoolingor
dehumidifyingmode.Otherwise,condensationmay
occuronthesurfaceofthehorizontallouvercausing
moisturetodropontothefloororonfurnishings.
Donotmovethehorizontallouvermanuallyunlessitis
necessary.Alwaysusetheremotecontroller.
Whentheairconditionerisstartedimmediatelyafterit
wasstopped,thehorizontallouvermightnotmovefor
approximately10seconds.
Openangleofthehorizontallouvershouldnotbeset
toosmall,asCOOLINGorHEATINGperformancemay
beimpairedduetotoorestrictedairflowarea.
Donotoperateunitwithhorizontallouverinclosed
position.
Whentheairconditionerisconnectedtopower(initial
power),thehorizontallouvermaygenerateasoundfor
10seconds,thisisanormaloperation.

CAUTION

,,

,,

,,

,,

Range

Range

Vertical
louver
(threeplaces)

25

AUTOoperation

operation

DRYINGoperation

WhenyousettheairconditionerinAUTOmode,
itwillautomaticallyselectcooling,heating(cooling
/heatingmodelsonly),orfanonlyoperation
dependingonwhattemperatureyouhaveselected
andtheroomtemperature.

Theairconditionerwillcontrolroomtemperature

automaticallyroundthetemperaturepointsetby
you.
IftheAUTOmodeisuncomfortable,youcan
selectdesiredconditionsmanually.

Whenyoupush tononremotecontroller
duringcooling,heating(coolingonlytypewithout),
orAUTOoperation,theairconditionerwill
automaticallyincrease(cooling)ordecrease

(heating)1perhour.
Thesettemperaturewillbesteady2hourslater.
Andtheairconditionerwillbetimeroffin7hours.
Thefanspeedwillbeautomaticallycontrolled.
Thisfeaturecanmaintainthemostcomfortable

temperatureandsavemoreenergyforyou.

Thefanspeedwillbeautomaticallycontrolled

underdryoperation.

Duringthedryoperation,iftheroomtemperature

islowerthan10C,thecompressorstopsoperation

andrestartsuntiltheroomtemperatureisabove

12C.

℃

O

O

OPERATINGINSTRUCTIONS

Howtheairconditionerworks

1hour

1hour

Set
Temperature

Cooling

1℃

1℃

Heating

operation

1℃

1℃

1hour

1hour

Set
Temperature

7hourstimeroff

7hourstimeroff

ECONOMY

ECONOMY

ECONOMY but

26

operationECONOMY

Whilesimultaneouslyoperatingtwoindoorunitsormore,makesuretheoperationmodeswill
notconflictwitheachother.Theheatmodeclaimsprecedenceoverallothermodes.

Forexample:Iftheunitintiallystartedoperatesundercool(orfan)mode,theotherunitscan
operateunderanymodeexceptheat.Ifoneoftheunitselectsheatmode,theotheroperating
unitswillstopoperationanddiplayP5(Fortheunitswithdisplaywindowonly)ortheAutoand
Operationindicationlightflashrapidly,theDefrostindicationlightturnoff,theTimerindication
lightremainon(Fortheunitswithoutdisplaywindow),ortheDefrostandAlarmindicationlight(
ifapplicable)illuminate,theOperationindicationlightflashesrapidlyandtheTimerindication
lightturnsoff(FortheFloorandstandingtype).

Iftheunit

intiallystartedoperatesunderheatmode,theotherunitscanoperateunderheatmodeonly.

OPERATINGINSTRUCTIONS

Operationmodeselection

Toachieveoptimalperformance,pleasenotethefollowing:

Adjusttheairflowdirectioncorrectlysothatitisnotdirectedonpeople.
Adjustthetemperaturetoachievethehighestcomfortlevel.Donotadjusttheunittoexcessive
temperaturelevels.
ClosedoorsandwindowsonCOOLorHEATmodes,orperformancemaybereduced.
UseTIMERONbuttonontheremotecontrollertoselectatimeyouwanttostartyourairconditioner.

Donotputanyobjectnearairinletorairoutlet,astheefficiencyoftheairconditionermaybereduced
andtheairconditionermaystoprunning.
Cleantheairfilterperiodically,otherwisecoolingorheatingperformancemaybereduced.
Donotoperateunitwithhorizontallouvreinclosedposition.

Suggestion:FortheunitadoptsanElectricHeater,whentheoutsideambienttemperatureis
below0C,westronglyrecommendyoutokeepthemachinepluggedinordertoguaranteeit
runningsmoothly.

O

Optimaloperation

27

CAREANDMAINTENANCE

CleaningtheGrille,CaseandRemoteController

Aclothdampenedwithcoldwatermaybeusedon
theindoorunitifitisverydirty.Thenwipeitwitha
drycloth.
Donotuseachemicallytreatedclothordusterto
cleantheunit.
Donotusebenzine,thinner,polishingpowder,or
similarsolventsforcleaning.Thesemaycause
theplasticsurfacetocrackordeform.
Neverusewaterhotterthan40Ctocleanthefront
panel,itcouldcausedeformationofdiscoloration.

CAUTIONS

Careandmaintenance

Turnthesystemoffbeforecleaning.Toclean,wipe
withasoft,drycloth.Donotusebleachorabrasives.

NOTE:Supplypowermustbedisconnectdbefore
cleaningtheindoorunit.

FilterHandle

Acloggedairfilterreducesthecoolingefficiencyof
thisunit.Pleasecleanthefilteronceevery2weeks.

1.Lifttheindoorunitpaneluptoanangleuntilit
stopswithaclickingsound.

2.Takeholdofthehandleoftheairfilterandliftit

upslightlytotakeitoutfromthefilterholder,
thenpullitdownwards.

Cleaningtheairfilter

3.Removethefromthe
indoorunit.

Cleantheitoncetwoweeks.
Cleantheitwithavacuumcleanerorwater,
thendryitupincoolplace.

ActiveCarbon&DustFilter

.

.

WALL-MOUNTEDTYPE

28

29

CAREANDMAINTENANCE

Maintenance

Checksbeforeoperation

Ifyouplantoidletheunitforalongtime,performthe
following:
(1)Operatethefanforabouthalfadaytodrythe

insideoftheunit.

(2)Stoptheairconditioneranddisconnectpower.
(3)Theoutdoorunitrequiresperiodicmaintenance

andcleaning.Donotattempttodothisyourself.
Contactyourdealerorservicer.

Removethebatteriesfromtheremotecontroller.

Checkthatthewiringisnotbrokenoffor
disconnected.
Checkthattheairfilterisinstalled.
Checkiftheairoutletorinletisblockedafterthe
airconditionerhasnotbeenusedforalongtime.

Donottouchthemetalpartsoftheunitwhen
removingthefilter.Injuriescanoccurwhen
handlingsharpmetaledges.
Donotusewatertocleaninsidetheairconditioner.
Exposuretowatercandestroytheinsulation,
leadingtopossibleelectricshock.
Whencleaningtheunit,firstmakesurethatthe
powerandcircuitbreakerareturnedoff.

Caution

4.Removethe
SilverIonfilter/Biofilter/

VitaminCfilter)fromitssupportframe.
(Theinstallationandremovingmethodoftheair

fresheningfilterisdifferentdependingonthemodels,
seethepicturesmarkedandontheleft.

Cleantheairfresheningfilteratleastonceamonth,
andreplaceitevery4-5months.
Cleanitwithvacuumcleaner,thendryitincoolplace.

5.Installtheairfresheningfilterbackintoposition.

6.Inserttheupperportionofairfilterbackintotheunit

takingcarethattheleftandrightedgeslineup
correctlyandplacefilterintoposition.

AirFresheningFilterOptionalfilter(:

PlasmaDustcollector/

.

.

1

2

1

2

Maintenance

Ifyouplantoidletheunitforalongtime,performthefollowing:

Useadryclothtowipeoffthedustaccumulatedonrearairintakegrille,inordertoavoidthedust
blowingoutfromtheindoorunit.
Checkthatthewiringisnotbrokenoffordisconnected.
Checkthattheairfilterisinstalled.
Checkiftheairoutletorinletisblockedaftertheairconditionerhasnotbeenusedforalongtime.

1.Cleantheindoorunitandairfilter.

2.SelectFANonlymode,lettheindoorfanrunforawhiletodrytheinsideoftheunit.

3.Disconnectthepowersupplyandremovebatteryfromtheremotecontrol.

4.Checkcomponentsoftheoutdoorunitperiodically.Contactalocaldealeroracustomerservicecentre
iftheunitrequiresservicing.

Note: Beforeyoucleantheairconditioner,besuretoswitchtheunitoffanddisconnectthepower

supplyplug.

Whentheairconditioneristobeusedagain:

OPERATIONTIPS

Thefollowingeventsmayoccurduringnormaloperation.

1.
Thecompressorcan'trestartfor3minutesafteritstops.
TheunitisdesignednottoblowcoldaironHEATmode,whentheindoorheatexchangerisin

oneofthefollowingthreesituationsandthesettemperaturehasnotbeenreached.
A)Whenheatinghasjuststarting.
B)Defrosting.
C)Lowtemperatureheating.
Theindoororoutdoorfanstoprunningwhendefrosting(Coolingandheatingmodelsonly).

Frostmaybegeneratedontheoutdoorunitduringheatcyclewhenoutdoortemperatureislow
andhumidityishighresultinginlowerheatingefficiencyoftheairconditioner.
Duringthisconditionairconditionerwillstopheatingoperationandstartdefrostingautomatically.
Thetimetodefrostmayvaryfrom4to10minutesaccordingtotheoutdoortemperatureand

theamountoffrostbuildupontheoutdoorunit.

2.
Awhitemistmaygenerateduetoalargetemperaturedifferencebetweenairinletandairoutleton
COOLmodeinanindoorenvironmentthathasahighrelativehumidity.
Awhitemistmaygenerateduetomoisturegeneratedfromdefrostingprocesswhentheairconditioner
restartsinHEATmodeoperationafterdefrosting.

3.
Youmayhearalowhissingsoundwhenthecompressorisrunningorhasjuststoppedrunning.
Thissoundisthesoundoftherefrigerantflowingorcomingtoastop.
Youcanalsohearalow"squeak"soundwhenthecompressorisrunningorhasjuststoppedrunning.
Thisiscausedbyheatexpansionandcoldcontractionoftheplasticpartsintheunitwhenthetemper-

atureischanging.

Anoisemaybeheardduetolouverrestoringtoitsoriginalpositionwhenpowerisfirstturnedon.

Protectionoftheairconditioner.

Compressorprotection

Anti-coldair(Coolingandheatingmodelsonly)

Defrosting(Coolingandheatingmodelsonly)

Awhitemistcomingoutfromtheindoorunit

Lownoiseoftheairconditioner

OperationTips

30

11

4.
Thisisanormalconditionwhentheairconditionerhasnotbeenusedforalongtimeorduringfirst
useoftheunit.

5.
Thisiscausedbytheindoorunitgivingoffsmellspermeatedfrombuildingmaterial,fromfurniture,
orsmoke.

Dustisblownoutfromtheindoorunit.

Apeculiarsmellcomesoutfromtheindoorunit.

6.
Whenindoortemperaturereachesthetemperaturesettingonairconditioner,thecompressorwillstop

automatically,andtheairconditionerturnstoFANonlymode.Thecompressorwillstartagainwhenthe
indoortemperaturerisesonCOOLmodeorfallsonHEATmode(Forcoolingandheatingmodelsonly)to
thesetpoint.

TheairconditionerturnstoFANonlymodefromCOOLorHEAT(Forcoolingandheatingmodels
only)mode.

OPERATIONTIPS

7.Drippingwatermaygenerateonthesurfaceoftheindoorunitwhencoolinginahighrelativelyhumidity

(relativehumidityhigherthan80%).Adjustthehorizontallouvertothemaximumairoutletpositionand
selectHIGHfanspeed.

8.

Theairconditionerdrawsinheatfromtheoutdoorunitandreleasesitviatheindoorunitduringheating
operation.Whentheoutdoortemperaturefalls,heatdrawninbytheairconditionerdecreasesaccordingly.
Atthesametime,heatloadingoftheairconditionerincreasesduetolargerdifferencebetweenindoorand
outdoortemperature.Ifacomfortabletemperaturecan'tbeachievedbytheairconditioner,wesuggestyou
useasupplementaryheatingdevice.

9.

Powerfailureduringoperationwillstoptheunitcompletely.
FortheunitwithoutAuto-restartfeature,whenthepowerrestores,theOPERATIONindicatorontheindoor
unitstartsflashing.Torestarttheoperation,pushtheON/OFFbuttonontheremotecontroller.Fortheunit
withAuto-restartfeature,whenthepowerrestores,theunitrestartsautomaticallywithalltheprevioussettings
preservedbythememoryfunction.

10.Lightningoracarwirelesstelephoneoperatingnearbymaycausetheunittomalfunction.

Disconnecttheunitwithpowerandthenre-connecttheunitwithpoweragain.PushtheON/OFFbuttonon
theremotecontrollertorestartoperation.

Heatingmode(Forcoolingandheatingmodelsonly)

Auto-restartfunction

31

32

TROUBLESHOOTINGTIPS

Stoptheairconditionerimmediatelyifoneofthefollowingfaultsoccur.Disconnectthe
powerandcontactthenearestcustomerservicecenter.

Fuseblowsfrequentlyorcircuitbreakertripsfrequently.

Otherobjectsorwaterpenetratetheairconditioner.
Theremotecontrollerwon'tworkorworksabnormally.

Otherabnormalsituations.

Trouble

Malfunctions

Unitdoesnot
start

Unitnotcooling
orheating
(Cooling/heating

modelsonly)
roomverywell
whileairflowing
outfromtheair
condtioneri

Cause

Powercut

Unitmayhavebecomeunplugged.

Fusemayhaveblown.

BatteryinRemotecontrollermayhave
beenexhausted.

Thetimeyouhavesetwithtimeris
incorrect.

Waitforpowertoberestored.

Checkthatplugissecurelyinwall
receptacle.

Replacethefuse.

Replacethebattery.

Waitorcanceltimersetting.

Settemperaturecorrectly.Fordetailed
methodpleasereferto"Remote
controllerinstruction"section.

Cleantheairfilter.

Closethedoorsorwindows.

Clearobstructionsawayfirst,then

restarttheunit.

Wait.

Inappropriatetemperature
setting.

Airfilterisblocked.

DoorsorWindowsareopen.

Airinletoroutletofindooror

outdoorunithasbeenblocked.

Compressor3minutes

protectionhasbeenactivated.

Ifthetroublehasnotbeencorrected,pleasecontactalocaldealerorthenearestcustomer
servicecenter.Besuretoinformthemofthedetailedmalfunctionsandunitmodel.

Notes:Donotattempttorepairtheunityourself.

Alwaysconsultanauthorisedserviceprovider.

Whatshouldbedone?

IftheE(0,1.......)orP(0,1.......)codeappearsontheLED(LCD)window,disconnectthe

powerandcontacttheservicepeople.

2201 Dwyer Avenue,

Utica NY 13501

website: www.enviromaster.com