En-1
1. SAFETY PRECAUTIONS
Be sure to read this Manual thoroughly before installation.•
The warnings and precautions indicated in this Manual contain important information •
pertaining to your safety. Be sure to observe them.
Hand this Manual, together with the Operating Manual, to the customer. Request the •
customer to keep them on hand for future use, such as for relocating or repairing the
unit.
WARNING
Indicates a potentially or imminently hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in
minor or moderate injury or damage to property.
WARNING
•Installationofthisproductmustbedonebyexperiencedservicetechniciansorprofes-
sional installers only in accordance with this manual. Installation by non-professional
or improper installation of the product might cause serious accidents such as injury,
waterleakage,electricshock,orre.Iftheproductisinstalledindisregardofthe
instructions in this manual, it will void the manufacturer’s warranty.
•Donotturnonthepoweruntilallworkhasbeencompleted.Turningonthepower
before the work is completed can cause serious accidents such as an electric shock
orare.
•Ifrefrigerantleakswhenyouareworking,ventilatethearea.Iftheleakingrefrigerant
isexposedtoadirectame,itmayproduceatoxicgas.
•Installationmustbeperformedinaccordancewithregulations,codes,orstandardsfor
electrical wiring and equipment in each country, region, or the installaton place.
•Donotusemeanstoacceleratethedefrostingprocessortoclean,otherthanthose
recommended by the manufacturer.
•Donotpierceorburn.
•Thisapplianceisnotintendedforusebypersons(includingchildren)withreduced
physical,sensoryormentalcapabilities,orlackofexperienceandknowledge,unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they
do not play with the appliance.
CAUTION
•Readcarefullyallofsafetyinformationwritteninthismanualbeforeyouinstalloruse
the air conditioner.
•Installtheunitbyfollowinglocalcodesandregulationsinforceattheplaceof
installation, and the instructions provided by the manufacturer.
•Thisunitispartofasetconstitutinganairconditioner.Theunitmustnotbeinstalled
alone or be installed with non-authorized device by the manufacturer.
•Alwaysuseaseparatepowersupplylineprotectedbyacircuitbreakeroperatingonall
wires with a distance between contact of 3 mm for this unit.
•Toprotectthepersons,earth(ground)theunitcorrectly,andusethepowercable
combinedwithanEarthLeakageCircuitBreaker(ELCB).
•Theunitsarenotexplosionproof,andthereforeshouldnotbeinstalledinexplosive
atmosphere.
•Toavoidgettinganelectricshock,nevertouchtheelectricalcomponentssoonafter
thepowersupplyhasbeenturnedoff.Afterturningoffthepower,alwayswait5min-
utes or more before you touch the electrical components.
•Thisunitcontainsnouser-serviceableparts.Alwaysconsultexperiencedservice
technicians for repairing.
•Whenmovingorrelocatingtheairconditioner,consultexperiencedservicetechnicians
for disconnection and reinstallation of the unit.
•Donotplaceanyotherelectricalproductsorhouseholdbelongingsunderindoorunit
or outdoor unit. Condensation dripping from the unit might get them wet, and may
cause damage or malfunction of your property.
•Becarefulnottoscratchtheairconditionerwhenhandlingit.
•Afterinstallation,explaincorrectoperationtothecustomer,usingtheoperatingmanual.
2. ABOUT THE UNIT
2.1.
Precautions for using R410A refrigerant
Thebasicinstallationworkproceduresarethesameasconventionalrefrigerant(R22)
models.
However, pay careful attention to the following points:
Since the working pressure is 1.6 times higher than that of conventional refrigerant
(R22)models,someofthepipingandinstallationandservicetoolsarespecial.(See
thetablebelow.)
Especially,whenreplacingaconventionalrefrigerant(R22)modelwithanewrefrigerant
R410Amodel,alwaysreplacetheconventionalpipingandflarenutswiththeR410Apiping
andarenuts.
ModelsthatuserefrigerantR410Ahaveadifferentchargingportthreaddiametertopre-
venterroneouschargingwithconventionalrefrigerant(R22)andforsafety.Therefore,
checkbeforehand.[ThechargingportthreaddiameterforR410Ais1/2-20UNF.]
Bemorecarefulthatforeignmatter(oil,water,etc.)doesnotenterthepipingthanwith
refrigerant(R22)models.Also,whenstoringthepiping,securelysealtheopeningby
pinching, taping, etc.
Whenchargingtherefrigerant,takeintoaccounttheslightchangeinthecompositionof
thegasandliquidphases.Andalwayschargefromtheliquidphasewhererefrigerant
composition is stable.
2.2. Special tools for R410A
Tool name Contents of change
Gauge manifold
Pressure is high and cannot be measured with a conven-
tional (R22) gauge. Toprevent erroneous mixing of other
refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals -0.1 to 5.3 MPa
(-1to53bar)forhighpressure.
-0.1to3.8MPa(-1to38bar)forlowpressure.
Charge hose
To increase pressure resistance, the hose material and base
size were changed.
Vacuum pump
A conventional vacuum pump can be used by installing a
vacuum pump adapter.
Gas leakage detector SpecialgasleakagedetectorforHFCrefrigerantR410A.
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the amount of residual
oilis lessthan 40mg/10m.Donotusecopperpipeshaving acollapsed, deformedor
discoloredportion(especiallyonthe interior surface). Otherwise, theexpansionvalueor
capillary tube may become blocked with contaminants.
AsanairconditionerusingR410AincurspressurehigherthanwhenusingR22,itis
necessary to choose adequate materials.
WARNING
Do not use the existing (for R22) piping and are nuts.
Iftheexistingmaterialsareused,thepressureinsidetherefrigerantcyclewillriseand
causefailure,injury,etc.(UsethespecialR410Amaterials.)
When installing and relocating the air conditioner, do not mix gases other than
the specied refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to
an abnormally high value and cause failure, injury, etc.
Polski
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English
AIRCONDITIONER
WallMountedType
INSTALLATION MANUAL
Contents
1. SAFETYPRECAUTIONS .................................................................. 1
2. ABOUTTHEUNIT ............................................................................. 1
3. GENERALSPECIFICATION ............................................................. 2
4. ELECTRICALREQUIREMENT ......................................................... 2
5. SELECTINGTHEMOUNTINGPOSITION ....................................... 2
6. INSTALLATIONWORK ..................................................................... 3
7. ELECTRICALWIRING ..................................................................... 5
8. FINISHING........................................................................................ 5
9. FRONTPANELREMOVALANDINSTALLATION ............................. 6
10. TESTRUN ......................................................................................... 6
11. REMOTECONTROLLERINSTALLATION ........................................ 6
12. OPTIONALKITINSTALLATION(OPTION) ....................................... 6
13. INSTALLATIONWORK ..................................................................... 7
14. FUNCTIONSETTING........................................................................ 9
15. CUSTOMERGUIDANCE ................................................................ 10
16. ERRORCODES ...............................................................................11
PARTNo.9333005072-02
[Originalinstructions]
Forauthorizedservicepersonnelonly.
9333005072-02_IM.indb 1 19/10/2560 9:49:44