1. Safety precautions
Contents
1. Safety precautions ............................................................................................. 2
2. Installation location ............................................................................................ 3
3. Installing the outdoor unit .................................................................................. 4
4. Installing the refrigerant piping .......................................................................... 5
5. Drainage piping work ......................................................................................... 8
6. Electrical work ................................................................................................... 8
7. Test run ............................................................................................................ 10
8. Special Functions .............................................................................................11
9. System control ................................................................................................. 12
►Beforeinstallingthe unit,make sure you read allthe “Safety
precautions”.
►Pleasereporttoortakeconsentbythesupplyauthoritybefore
connectiontothesystem.
►“ThisequipmentcomplieswithIEC 61000-3-12 providedthat
theshort-circuitpowerSSCisgreaterthanorequaltoSSC (*1)
attheinterfacepointbetweentheuser’ssupplyandthepublic
system.Itisthe responsibilityoftheinstalleroruserof the
equipmenttoensure,byconsultationwiththedistributionnet-
workoperatorif necessary,thattheequipment isconnected
onlytoasupplywithashort-circuitpowerSSCgreaterthanor
equaltoSSC (*1)”
SSC (*1)
Model SSC (MVA)
PUHZ-RP200YHA2 1.35
PUHZ-RP250YHA2 1.49
Warning:
Describesprecautionsthatmustbeobservedtopreventdangerofinjuryor
deathtotheuser.
Caution:
Describesprecautionsthatmustbeobservedtopreventdamagetotheunit.
After installation work has been completed, explain the “Safety Precautions,” use,
and maintenance of the unit to the customer according to the information in the
Operation Manual and perform the test run to ensure normal operation. Both the
Installation Manual and Operation Manual must be given to the user for keeping.
These manuals must be passed on to subsequent users.
: Indicates a part which must be grounded.
Warning:
Carefullyreadthelabelsafxedtothemainunit.
Warning:
• Theunit mustnotbeinstalled bytheuser.Ask adealeroran authorized
techniciantoinstalltheunit.Iftheunitisinstalledincorrectly,waterleak-
age,electricshock,orremayresult.
• Forinstallationwork,followtheinstructionsintheInstallationManualand
usetools and pipe components specicallymade foruse with R410A re-
frigerant.TheR410ArefrigerantintheHFCsystemispressurized1.6times
thepressure ofusualrefrigerants. Ifpipecomponents notdesignedfor
R410Arefrigerantareusedandtheunitisnotinstalledcorrectly,thepipes
mayburstandcausedamageorinjuries.Inaddition,waterleakage,electric
shock,orremayresult.
• Theunitmustbeinstalled according to the instructions in order tomini-
mizetheriskofdamagefromearthquakes,typhoons,orstrongwinds.An
incorrectlyinstalledunitmayfalldownandcausedamageorinjuries.
• The unit must be securely installed on a structure that can sustain its
weight.Iftheunitismountedonanunstablestructure,itmayfalldownand
causedamageorinjuries.
• Iftheairconditionerisinstalledinasmallroom,measuresmustbetaken
toprevent the refrigerantconcentrationinthe room from exceedingthe
safetylimitintheeventofrefrigerantleakage.Consultadealerregarding
theappropriatemeasurestopreventtheallowableconcentrationfrombe-
ingexceeded.Shouldtherefrigerantleakandcausetheconcentrationlimit
tobeexceeded,hazardsduetolackofoxygenintheroommayresult.
• Ventilatetheroomifrefrigerantleaksduringoperation.Ifrefrigerantcomes
intocontactwithaame,poisonousgaseswillbereleased.
• Allelectricworkmustbeperformedbyaqualiedtechnicianaccordingto
localregulationsandtheinstructionsgiveninthismanual.Theunitsmust
bepowered by dedicated powerlines andthe correctvoltage andcircuit
breakersmustbeused.Powerlineswithinsufcientcapacityorincorrect
electricalworkmayresultinelectricshockorre.
• Use C1220 copper phosphorus, for copper and copper alloy seamless
pipes,toconnecttherefrigerantpipes.Ifthepipesarenotconnectedcor-
rectly,theunitwillnotbeproperlygroundedandelectricshockmayresult.
• Use only speciedcables forwiring. Theconnections mustbe made se-
curelywithouttensionontheterminals.Ifthecablesareconnectedorin-
stalledincorrectly,overheatingorremayresult.
• Theterminalblockcoverpaneloftheoutdoorunitmustbermlyattached.
Ifthecoverpanelismountedincorrectlyanddustandmoistureenterthe
unit,electricshockorremayresult.
• Wheninstallingormovingtheairconditioner,useonlythespeciedrefrig-
erant(R410A)tochargetherefrigerantlines.Donotmixitwithanyother
refrigerantanddonotallowairtoremaininthelines.Airenclosedinthe
linescancausepressurepeaksresultinginaruptureandotherhazards.
• Use only accessories authorized by Mitsubishi Electric and ask a dealer
oran authorized technician toinstall them.If accessoriesare incorrectly
installed,waterleakage,electricshock,orremayresult.
• Donotalterthe unit.Consultadealerfor repairs.Ifalterations orrepairs
arenot performedcorrectly, waterleakage,electricshock, orremayre-
sult.
• Theuser shouldnever attemptto repairthe unitor transferit toanother
location.If the unit is installedincorrectly, waterleakage, electricshock,
orremayresult.Iftheairconditionermustberepairedormoved,aska
dealeroranauthorizedtechnician.
• Afterinstallationhasbeencompleted,checkforrefrigerantleaks.Ifrefrig-
erantleaksintotheroomandcomesintocontactwiththeameofaheater
orportablecookingrange,poisonousgaseswillbereleased.
1.1.Beforeinstallation
Caution:
• Do not use the unit in an unusual environment. If the air conditioner is
installedinareasexposedtosteam,volatileoil(includingmachineoil),or
sulfuricgas,areasexposedtohighsaltcontentsuchastheseaside,or
areaswheretheunitwillbecoveredbysnow,theperformancecanbesig-
nicantlyreducedandtheinternalpartscanbedamaged.
• Do not install the unit where combustible gases may leak, be produced,
ow,oraccumulate.If combustible gas accumulatesaroundtheunit,re
orexplosionmayresult.
• Theoutdoorunitproducescondensationduring the heatingoperation.
Makesuretoprovidedrainagearoundtheoutdoorunitifsuchcondensa-
tionislikelytocausedamage.
• Wheninstalling theunitin ahospitalor communicationsoffice,be pre-
paredfornoiseandelectronic interference.Inverters,home appliances,
high-frequencymedicalequipment,and radiocommunicationsequipment
cancausetheair conditioner to malfunction or breakdown. The aircon-
ditionermay also affect medicalequipment, disturbingmedical care, and
communicationsequipment,harmingthescreendisplayquality.
1.2.Beforeinstallation(relocation)
Caution:
• Beextremely careful whentransportingthe units. Twoormore persons
areneeded to handle theunit, as itweighs 20kg ormore. Do notgrasp
thepackagingbands.Wearprotectiveglovestoremovetheunitfromthe
packagingandtomoveit,asyoucaninjureyourhandsonthensorother
parts.
• Besuretosafelydisposeofthepackagingmaterials.Packagingmaterials,
suchasnailsand othermetalorwoodenparts maycausestabs orother
injuries.
• Thebaseandattachmentsoftheoutdoorunitmustbeperiodicallychecked
forlooseness,cracksorotherdamage.Ifsuchdefectsareleftuncorrected,
theunitmayfalldownandcausedamageorinjuries.
• Donotcleantheairconditionerunitwithwater.Electricshockmayresult.
• Tightenall arenuts tospecicationusing atorque wrench.If tightened
toomuch,thearenutcanbreakafteranextendedperiodandrefrigerant
canleakout.
BG79U791K01_en.indd 2 9/18/2007 3:43:17 PM