MaxiCool MMD2-18HDI, MMD3-27HDI Installation Manual

Beforeusingyourairconditioner,pleaseread
thismanualcarefullyandkeepitforfuturereference.

INVERTERONE-TWO/ONE-THREE
/ONE-FOUR/ONE-FIVESPLIT-TYPE

ROOMAIRCONDITIONER

MODELMMD2-18HDI

：

MMD3-27HDI

Pleasereadthisinstallationmanualcompletely
beforeinstallingtheproduct.
Ifthepowercordisdamaged,replacementwork
shallbeperformedbyauthorisedpersonnelonly.
Installationworkmustbeperformedinaccordance
withthenationalwiringStandardsbyauthorised
personnelonly.
Contactanauthorisedservicetechnicianfor
repair,maintenanceorinstallationofthisunit.

CONTENTS

SAFETYPRECAUTIONS

Warning...........................................................................................................................................2

Caution............................................................................................................................................2

INSTALLATIONINSTRUCTIONS

Selectinginstallationplace...............................................................................................................3

Wall-mountedtype...........................................................................................................................3

Accessories.........................................................................................................4

Four-waycassettetype................................................................................................................9

Duct&Ceilingtype.......................................................................................................................12

CeilingandFloortype....................................................................................................................16

FloorandStandingtype(Console)..................................................................................................19

Outdoorunitinstallation................................................................................................................23

REFRIGERANTPIPECONNECTION

Refrigerantpipeconnection..........................................................................................................24

ELECTRICALWORK

Electricalwork.............................................................................................................................25

AIRPURGING

Airpurgingwithvacuumpump.....................................................................................................27

Safetyandleakagecheck............................................................................................................29

TESTRUNNING

Testrunning..................................................................................................................................30

ReadThisManual

Insideyouwillfindmanyhelpfulhintsonhowtoinstallandtesttheairconditionerproperly.
Alltheillustrationsandspecificationsinthemanualaresubjecttochangewithoutpriornoticeforproduct
improvement.Theactualshapeshouldprevail.

CAUTION

Contactanauthorisedservicetechnicianforrepairormaintenanceofthisunit.
Contactanauthorisedinstallerforinstallationofthisunit.
Theairconditionerisnotintendedforusebyyoungchildrenorinfirmedpersonswithoutsupervision.
Youngchildrenshouldbesupervisedtoensurethattheydonotplaywiththeairconditioner.
Ifthepowercordistobereplaced,replacementworkshallbeperformedbyauthorisedpersonnelonly.
InstallationworkmustbeperformedinaccordancewiththenationalwiringStandardsbyauthorised
personnelonly.

1

SAFETYPRECAUTIONS

ReadthefollowSAFETYPRECAUTIONScarefullybeforeinstallation.
Electricalworkmustbeinstalledbyalicensedelectrician.Besuretousethecorrectrating
ofthepowerplugandmaincircuitforthemodeltobeinstalled.
Incorrectinstallationduetoignoringoftheinstructionwillcauseharmordamage.

Theseriousnessisclassifiedbythefollowingindications.

WARNING

CAUTION

Thissymbolindicatesthepossibilityofdeathorseriousinjury.

Thissymbolindicatesthepossibilityofinjuryordamagetoproperty.

Theitemstobefollowedareclassifiedbythesymbols:

SymbolwithbackgroundwhitedenotesitemthatisPROHIBITEDfromdoing.

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.

2

INSTALLATIONINSTRUCTIONS

1.Wall-mountedtype

Selectinginstallationplace

Readcompletely,thenfollowstepbystep.

Indoorunit

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

Fig.1

Outdoorunit

Ifanawningisbuiltovertheoutdoorunitto
preventdirectsunlightorrainexposure,
makesurethatheatradiationfromthe
condenserisnotrestricted.
Ensurethattheclearancearoundtheback
oftheunitismorethan30cm
morethan30cm
havemorethan200cmofclearanceandthe
connectionside(rightside)shouldhavemore
than60cmofclearance.
Donotplaceanimalsandplantsinthepathoftheairinletoroutlet.
Taketheairconditionerweightintoaccountandselectaplacewherenoiseandvibration
willnotbeanissue.
Selectaplacesothatthewarmairandnoisefromtheairconditionerdonotdisturbneighbors.

.Thefrontoftheunitshould

andleftsideis

Fig.2

Rooftopinstallation:

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

3

INSTALLATIONINSTRUCTIONS

Toolsneededforinstallation:

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

Accessories

Vacuumpump
Gaugemanifold
Usersmanual
Thermometer
Multimeter
Pipecutter
Measuringtape

Number

1

2

3

4

5
6
7

8

9

NameofAccessories

InstallationPlate

PlasticExpansionSheath

Self-tappingScrewAST3.9X25

Connecting

pipe

Assembly

Liquidside

Gasside

6.35

9.53

12.7

Remotecontroller

Self-tappingScrewBST2.9X10

Remotecontrollerholder

Optional
parts

Seal(forcooling&heatingmodelsonly)

DrainJoint

(forcooling&heatingmodelsonly)

Qty/oneunit’

1

5-8

(dependingonmodels)

5-8

(dependingonmodels)

Partsyoumustpurchase
Consultthetechnician
forthepropersize.

1

2

1

1

1

10

11

Note:Excepttheabovepartsprovided,theotherpartsneededduringinstallationyoumust

purchase.

Transferconnector

(Pipesizedifferfromappliancetoappliance.

NOTE:

Tomeetdifferentpipesizerequirement,sometimes

thepipeconnectionsneedthetransferconnector
toinstallontheoutdoorunit.)

Magneticring

()

Packedwiththeindoorunit

1-4

(onsomemodels)

1

4

INSTALLATIONINSTRUCTIONS

2

Morethan15cm

1

3

Remote
controller

Remote
controller

Remote
controller

One-Two
One-Three
One-Four

One-Five

5

Remote
controller

A

Loopa
connective
cable

B

4

Remote
controller

6

Airout

C

Fig.3

CAUTIONS

Thisillustrationisforexplanationpurposesonly.
Theactualshapeofyouraircondtionermaybe
slightlydifferent.
Copperlinesmustbeinsulatedindependently

CAUTION

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

5

INSTALLATIONINSTRUCTIONS

Indoorunitinstallation(wall-mountedtype)

1.FittheInstallationPlate

1.Fittheinstallationplatehorizontally
onstructuralpartsofthewallwith
spacesaroundtheinstallationplate.

2.Ifthewallismadeofbrick,concrete
orthelike,drilleight(8)5mmdiameter
holesinthewall.InsertClipanchorfor
appropriatemountingscrews.

3.Fittheinstallationplateonthewall
witheight(8)type “A” screws.

Note:

FittheInstallationPlateanddrill
holesinthewallaccordingtothe
wallstructureandcorresponding
mountingpointsontheinstallation
plate.TheInstallationPlatemaybe
slightlydifferentaccordingtothe
differentmodelsofindoorunit.

(Dimensionsarein “mm” unless

otherwisestated)

Correctorientation
ofInstallationPlate

Indoorunitoutline

120mmor
moretowall

Leftrearside
refrigerant
pipehole65

φ

ModelA(A:710,B:250,C:100,D:110)
ModelB()A:790,B:265,C:100,D:150

ModelA(A:710,B:250,C:100,D:110)
ModelB()A:790,B:275,C:100,D:85

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

Fig.4

150mmormoretoceiling

C

Installationplate

A

D

120mmor
moretowall

Rightrearside
refrigerant
pipehole65

φ

2.Drillaholeinthewall

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

φ

tooutdoorside.

2.Alwaysusewallholeconduitwhen
drillingmetalgrid,metalplateorthelike.

3.ConnectivePipeandDrainage
Installation

Drainage

1.Runthedrainhoseslopingdownward.

Donotinstallthedrainhoseas
illustratedinFig.7.

Indoorunitoutline

120mmor
moretowall

Leftrearside
refrigerant
pipehole65

φ

Donotblockwaterflowbyarise.

150

ModelA(A:920,B:293,C:150,D:185)
ModelB()A:995,B:293,C:150,D:200

ModelC()A:850,B:305,C:150,D:145

150mmormoretoceiling

Installationplate

918

Fig.5

Wall

Indoor

Fig.6

Donotputtheendof
drainhoseintowater.

190

Outdoor

120mmor
moretowall

Rightrearside
refrigerant
pipehole65

φ

Fig.7

6

2.Whenconnectingextensiondrainhose,

insulatetheconnectingpartofextension
drainhosewithashieldpipe,donotlet
thedrainhoseslack.

INSTALLATIONINSTRUCTIONS

Connectivepipeinstallation

1.Fortheleft-handandright-handpiping,
removethepipecoverfromtheside
panel.

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

3.Fixtheendoftheconnectivepipe.(Refer
toTighteningConnectioninREFRIGERANT
PIPINGCONNECTION)

4.Pipingandwrapping

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

Becausethecondensedwaterfromrearofthe
indoorunitisgatheredinpondingboxandis
pipedoutofroom.Donotputanythingelsein
thebox.

Right-handpiping

Left-handpiping

Fig.9

Fig.8

Rear-rightpiping

Rear-leftpiping

Fig.10

CAUTION

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

Indoorunit

Connective
cable

Drainhose

Pondingbox

Piperoom

Connective
pipe

Wrappingbelt

Fig.11

7

INSTALLATIONINSTRUCTIONS

4.Indoorunitinstallation

1.Passthepipingthroughtheholeinthe
wall.

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

3.Pipingcaneasilybemadebyliftingthe
indoorunitwithacushioningmaterial
betweentheindoorunitandthewall.
Getitoutafterfinishpiping.

4.Pushthelowerpartoftheindoorunitup
onthewall,thenmovetheindoorunit
fromsidetoside,upanddowntocheck
ifitishookedsecurely.

10.5KW

Max.50m

7

(R410A)

(R410A)

(R407c/R22)

Max.10m

(R407c/R22)

Fig.12

Max.5m

8

INSTALLATIONINSTRUCTIONS

2.Four-waycassettetype

Attachedfittings

Pleasecheckwhetherthefollowingfittingsareoffullscope.Iftherearesomeattachedfittingsfree
fromuse,pleaserestorethemcarefully.

InstallationFittings

1.Expansiblehook.................................4

2.Installationhook.................................4

3.Installationpaperboard.....................1

Tubing&Fittings

6

.Connectingpipegroup.........................1

7.Bindingtape.........................................6

8.Soundproof/insulationsheath.............2

Remotecontroller&ItsFrame

(onsomemodels)

9.Remotecontroller...........................1

10.Frame.............................................1

4.BoltM612.....................4

M516or

×

5.Magneticring..........................................1

×

Notesbeforeinstallation

1.Decidethecorrectcarry-inpath.

2.Movethisunitasoriginallypackagedaspossible.

3.Iftheairconditionerisinstalledonametalpart
ofthebuilding,itmustbeelectricallyinsulated
accordingtotherelevantelectricalcode.

4.Ifinstallinginalonelybuildingoratahighposition
whereitishotandhumidwithfrequentthunder­storm,lightning-protectionequipmentisnecessary.

Indoorunitinstallation

1.Installthemainbody

A.Theexistingceiling(tobehorizontal)
a.Pleasecutaquadrangularholeof600600mm

×

intheceilingaccordingtotheshapeofthe
installationpaperboard.(RefertoFig.15&16)
Thecenteroftheholeshouldbeatthesame
positionofthatoftheairconditionerbody.
Determinethelengthsandoutletsoftheconn­ectingpipe,drainpipeandcables.
Tobalancetheceilingandtoavoidvibration,
pleaseenforcetheceilingwhennecessary.

b.Pleaseselectthepositionofinstallationhooks

accordingtothehookholesontheinstallation
board.
Drillfourholesof12mm,50~55mmdeepatthe
selectedpositionsontheceiling.Thenembed
theexpansiblehooks(fittings).
Facetheconcavesideoftheinstallationhooks
towardtheexpansiblehooks.Determinethe
lengthoftheinstallationhooksfromtheheight
ofceiling,thencutofftheunnecessarypart.
Iftheceilingisextremelyhigh,pleasedetermine
thelengthoftheinstallationhookaccordingto
facts.
Cuttheinstallationhookopeninthemiddle
position,thenuseapropriatelengthofreinforcing
rod(12)toweldtogether.

11.Mountingscrew(ST2.910-C-H)...2

12.Alkalinedrybatteries(AM4)............2

>1000

Drainside

×

Fig.13

Fig.14

A

422 28.5

580(Body)

600(Ceilinghole)

611(Hooklocation)

650(Panel)

Fig.15

OutletOutlet Inlet

Ground

>1000

9