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En-2
3. Obstacles in front (blowing) only
Whenthereisanobstacleinfrontof
theunitasshowninthegure,open
spaceabove,behind,andonthesides
oftheunitisrequired.
2. Front (blowing) side open
As long as space indicated
in the figure is provided, it
is allowed to install the unit
where obstacles are behind
andon the sides of theunit.
(Noobstacleabovetheunit)
1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS
Ifthediameterofconnectionpipedoesnotmatchtheportsizeofoutdoorunit,useoptionaldifferent-diameterjointsaccordingtothefollowingtable.
Portsizeofoutdoorunit
Optionaldifferent-diameterjoints
(portsizeofoutdoorunit→diameterofconnectionpipe)
MXZ-2E52VAD MXZ-3E54VAD MXZ-4E71VAD Liquid/Gas
6.35(1/4)
→
9.52(3/8):PAC-493PI
9.52(3/8)
→
12.7(1/2):MAC-A454JP
9.52(3/8)
→
15.88(5/8):PAC-SG76RJ
12.7(1/2)
→
9.52(3/8):MAC-A455JP
12.7(1/2)
→
15.88(5/8):MAC-A456JP
Refertotheinstallationmanualofindoorunitforthediameterofconnection
pipeofindoorunit.
— — AUNIT 6.35(1/4)/12.7(1/2)
A-BUNIT A-CUNIT B-DUNIT 6.35(1/4)/9.52(3/8)
*1 Connecttothepowerswitchwhichhasagapof3mmormorewhenopen
tointerruptthesourcepowerphase.(Whenthepowerswitchisshutoff,it
mustinterruptallphases.)
*2 Usewiresinconformitywithdesign60245IEC57.Usetheindoor/outdoor
connectingwireinconformitywiththewirespecicationsspeciedinthe
installationmanualoftheindoorunit.
*3 Neverusepipeswiththicknesslessthanspecied.Thepressureresistance
willbeinsufcient.
*4 Useacopperpipeoracopper-alloyseamlesspipe.
*5 Becarefulnottocrushorbendthepipeduringpipebending.
*6 Refrigerantpipebendingradiusmustbe100mmormore.
*7 Insulationmaterial:Heatresistingfoamplastic0.045specicgravity
*8 Besuretousetheinsulationofspeciedthickness.Excessivethickness
maycauseincorrectinstallationoftheindoorunitandinsufcientthickness
maycausedewdrippage.
*
9
Iftheoutdoorunitisinstalledhigherthantheindoorunit,max.height
differenceisreducedto10m.
*
10
Ifpipelengthexceeds40m,additionalrefrigerant(R410A)chargeisre-
quired.(Noadditionalchargeisrequiredforpipelengthlessthan40m.)
Additionalrefrigerant=A×(pipelength(m)-40)
FREE SPACE REQUIRED AROUND OUTDOOR UNIT
1-4. SELECTING THE INSTALLATION LOCATION
• Whereitisnotexposedtostrongwind.
• Whereairowisgoodanddustless.
• Whererainordirectsunshinecanbeavoidedasmuchaspossible.
• Whereneighboursarenotannoyedbyoperationsoundorhotair.
• Whererigidwallorsupportisavailabletopreventtheincreaseofopera-
tionsoundorvibration.
• Wherethereisnoriskofcombustiblegasleakage.
• Wheninstallingtheunit,besuretosecuretheunitlegs.
• Whereitisatleast3mawayfromtheantennaofTVsetorradio.Opera-
tionoftheairconditionermayinterferewithradioorTVreceptioninareas
wherereceptionisweak.Anampliermayberequiredfortheaffected
device.
• Installtheunithorizontally.
• Pleaseinstallitinanareanotaffectedbysnowfallorblowingsnow.In
areaswithheavysnow,pleaseinstallacanopy,apedestaland/orsome
bafeboards.
Note:
Itis advisable to make a piping loopnear outdoor unit so as to reduce
vibrationtransmittedfromthere.
Note:
Whenoperatingtheairconditionerinlowoutsidetemperature,besure
tofollowtheinstructionsdescribedbelow.
• Neverinstalltheoutdoorunitinaplacewhereitsairinlet/outletside
maybeexposeddirectlytowind.
• Topreventexposuretowind,installtheoutdoorunitwithitsairinlet
sidefacingthewall.
•
Topreventexposuretowind,itisrecommendedtoinstallabafe
boardontheairoutletsideoftheoutdoorunit.
Avoidthefollowingplacesforinstallationwhereairconditionertrouble
isliabletooccur.
• Whereammablegascouldleak.
• Wherethereismuchmachineoil.
• Whereoilissplashedorwheretheareaislledwithoilysmoke
(suchascookingareasandfactories,inwhichthepropertiesof
plasticcouldbechangedanddamaged).
• Saltyplacessuchastheseaside.
• Wheresuldegasisgeneratedsuchashotspring,sewage,waste
water.
• Wherethereishigh-frequencyorwirelessequipment.
•
WherethereisemissionofhighlevelsofVOCs,includingphthalate
compounds,formaldehyde,etc.,whichmaycausechemicalcracking.
500ormore
200ormore
350ormore
100ormore
1. Obstacles above
Whenthereisnoobstacleinfrontand
onthe sidesof theunit, itis allowed
toinstalltheunitwhereanobstacleis
abovetheunitonlyifthespaceshown
inthegureisprovided.
500ormore
100ormore
(Unit:mm(inch))
4. Obstacles in front and behind
Theunitcanbeusedbyat-
tachinganoptionaloutdoor
blowingguide(MAC-
856SG)(butbothsidesand
topareopen).
100ormore
500ormore
Blowingguide(MAC-856SG)
(Unit:mm)
BN79A289H01_en.indd 2 2016/04/20 14:52:57
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