Mitsubishi Electric PUHZ-RP200 User manual
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INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner
unit.
INSTALLATIONSHANDBUCH
Zum sicheren und ordnungsgemäßen Gebrauch der Klimaanlage das Installationshandbuch gründlich durch-
lesen.
MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous as-
surer d’une utilisation correcte.
INSTALLATIONSMANUAL
Läs denna installationsmanual noga för säkert och korrekt bruk innan luftkonditioneringen installeras.
INSTALLATIEHANDLEIDING
Voor een veilig en juist gebruik moet u deze installatiehandleiding grondig doorlezen voordat u de airconditioner
installeert.
MANUALE DI INSTALLAZIONE
Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il con-
dizionatore d’aria.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
EΓXEIPIΔIO OΔHΓIΩN EΓKATAΣTAΣHΣ
Για ασφάλεια και σωστή χρήση, παρακαλείστε διαβάσετε προσεχτικά αυτό το εγχειρίδιο εγκατάστασης πριν
αρχίσετε την εγκατάσταση της μονάδας κλιματισμού.
MANUAL DE INSTALAÇÃO
Para segurança e utilização correctas, leia atentamente este manual de instalação antes de instalar a unidade
de ar condicionado.
INSTALLATIONSMANUAL
Læs venligst denne installationsmanual grundigt, før De installerer airconditionanlægget, af hensyn til sikker og
korrekt anvendelse.
MONTAJ ELKİTABI
Emniyetli ve doğru biçimde nasıl kullanılacağını öğrenmek için lütfen klima cihazını monte etmeden önce bu
elkitabını dikkatle okuyunuz.
РУКОВОДСТВО ПО УСТАНОВКЕ
Для осторожного и правильного использования прибора необходимо тщательно ознакомиться с
данным руководством по установке до выполнения установки кондиционера.
FOR INSTALLER
FÜR INSTALLATEURE
POUR L’INSTALLATEUR
VOOR DE INSTALLATEUR
PARA EL INSTALADOR
PER L’INSTALLATORE
ΓΙΑ ΑΥΤΟΝ ΠΟΥ ΚΑΝΕΙ ΤΗΝ ΕΓΚΑΤΑΣΤΑΣΗ
PARA O INSTALADOR
TIL INSTALLATØREN
FÖR INSTALLATÖREN
MONTÖR İÇİN
ДЛЯ УСТАНОВИТЕЛЯ
Air-Conditioners
PUHZ-RP200, 250YHA2
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2
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
►Beforeinstalling theunit, make sureyouread all the“Safety
precautions”.
►Pleasereporttoortakeconsentbythesupplyauthoritybefore
connectiontothesystem.
►“Thisequipmentcomplies withIEC61000-3-12provided that
theshort-circuitpowerSSCisgreaterthanorequaltoSSC (*1)
attheinterfacepointbetweentheuser’ssupplyandthepublic
system.Itis theresponsibilityof theinstalleror userofthe
equipmenttoensure,byconsultationwiththedistributionnet-
workoperator ifnecessary, thatthe equipmentisconnected
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:
• Theunitmustnotbeinstalledbytheuser.Askadealeroranauthorized
techniciantoinstalltheunit.Iftheunitisinstalledincorrectly,waterleak-
age,electricshock,orremayresult.
• Forinstallationwork,followtheinstructionsintheInstallationManualand
usetools and pipecomponents specically madeforuse with R410A re-
frigerant.TheR410ArefrigerantintheHFCsystemispressurized1.6times
thepressureofusualrefrigerants.Ifpipe components notdesignedfor
R410Arefrigerantareusedandtheunitisnotinstalledcorrectly,thepipes
mayburstandcausedamageorinjuries.Inaddition,waterleakage,electric
shock,orremayresult.
• Theunit must be installedaccordingto the instructionsinorderto mini-
mizetheriskofdamagefromearthquakes,typhoons,orstrongwinds.An
incorrectlyinstalledunitmayfalldownandcausedamageorinjuries.
• The unit must be securely installed on a structure that can sustain its
weight.Iftheunitismountedonanunstablestructure,itmayfalldownand
causedamageorinjuries.
• Iftheairconditionerisinstalledinasmallroom,measuresmustbetaken
topreventtherefrigerantconcentrationintheroomfromexceedingthe
safetylimitintheeventofrefrigerantleakage.Consultadealerregarding
theappropriatemeasurestopreventtheallowableconcentrationfrombe-
ingexceeded.Shouldtherefrigerantleakandcausetheconcentrationlimit
tobeexceeded,hazardsduetolackofoxygenintheroommayresult.
• Ventilatetheroomifrefrigerantleaksduringoperation.Ifrefrigerantcomes
intocontactwithaame,poisonousgaseswillbereleased.
• Allelectricworkmustbeperformedbyaqualiedtechnicianaccordingto
localregulationsandtheinstructionsgiveninthismanual.Theunitsmust
bepowered by dedicatedpower lines andthe correct voltageand circuit
breakersmustbeused.Powerlineswithinsufcientcapacityorincorrect
electricalworkmayresultinelectricshockorre.
• Use C1220 copper phosphorus, for copper and copper alloy seamless
pipes,toconnecttherefrigerantpipes.Ifthepipesarenotconnectedcor-
rectly,theunitwillnotbeproperlygroundedandelectricshockmayresult.
• Use only speciedcables forwiring. Theconnections mustbemade 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 authorizedtechnicianto installthem.If accessoriesare incorrectly
installed,waterleakage,electricshock,orremayresult.
• Donotalterthe unit.Consultadealerforrepairs.If alterationsorrepairs
arenotperformedcorrectly,waterleakage,electricshock,orremayre-
sult.
• Theuser shouldneverattempt torepairtheunit ortransferit toanother
location.If the unitisinstalled incorrectly, water leakage,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,areas exposed to highsaltcontentsuchas the seaside, or
areaswheretheunitwillbecoveredbysnow,theperformancecanbesig-
nicantlyreducedandtheinternalpartscanbedamaged.
• Do not install the unit where combustible gases may leak, be produced,
ow,oraccumulate.Ifcombustiblegas accumulates around the unit, re
orexplosionmayresult.
• Theoutdoor unitproducescondensationduringthe heatingoperation.
Makesuretoprovidedrainagearoundtheoutdoorunitifsuchcondensa-
tionislikelytocausedamage.
• Wheninstallingtheunitina hospitalor communicationsoffice, be pre-
paredfornoiseandelectronic interference. Inverters,homeappliances,
high-frequencymedicalequipment,and radiocommunicationsequipment
cancause the air conditionertomalfunction or breakdown. Theaircon-
ditionermay also affectmedical equipment, disturbingmedical care, and
communicationsequipment,harmingthescreendisplayquality.
1.2.Beforeinstallation(relocation)
Caution:
• Beextremelycarefulwhentransportingthe units.Twoormorepersons
areneeded to handlethe unit, asit weighs 20kg or more.Donot grasp
thepackagingbands. Wearprotectiveglovestoremovetheunitfromthe
packagingandtomoveit,asyoucaninjureyourhandsonthensorother
parts.
• Besuretosafelydisposeofthepackagingmaterials.Packagingmaterials,
suchasnailsand othermetalorwoodenpartsmaycausestabs orother
injuries.
• Thebaseandattachmentsoftheoutdoorunitmustbeperiodicallychecked
forlooseness,cracksorotherdamage.Ifsuchdefectsareleftuncorrected,
theunitmayfalldownandcausedamageorinjuries.
• Donotcleantheairconditionerunitwithwater.Electricshockmayresult.
• Tightenallare nutstospecication usingatorquewrench. Iftightened
toomuch,thearenutcanbreakafteranextendedperiodandrefrigerant
canleakout.
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3
1. Safety precautions
1.3. Beforeelectricwork
Caution:
• Besuretoinstallcircuitbreakers.Ifnotinstalled,electricshockmayresult.
• Forthepowerlines,usestandardcablesofsufcientcapacity.Otherwise,
ashortcircuit,overheating,orremayresult.
• Wheninstallingthepowerlines,donotapplytensiontothecables.Ifthe
connectionsareloosened,thecablescansnap or break and overheating
orremayresult.
• Besuretogroundtheunit.Donotconnectthegroundwiretogasorwater
pipes,lightingrods,ortelephonegroundinglines.Iftheunitisnotproperly
grounded,electricshockmayresult.
• Usecircuitbreakers(groundfaultinterrupter,isolatingswitch(+Bfuse),and
moldedcasecircuitbreaker)withthespeciedcapacity.Ifthecircuitbreaker
capacityislargerthanthespeciedcapacity,breakdownorremayresult.
1.4. Beforestartingthetestrun
Caution:
• Turnonthemainpowerswitchmorethan12hoursbeforestartingopera-
tion.Startingoperationjustafterturningonthepowerswitchcanseverely
damagetheinternal parts. Keep themainpowerswitchturned on during
theoperationseason.
• Beforestartingoperation,checkthatallpanels,guardsandotherprotec-
tive parts are correctly installed. Rotating, hot, or high voltage parts can
causeinjuries.
• Donottouchanyswitchwithwethands.Electricshockmayresult.
• Donottouchtherefrigerantpipeswithbarehandsduringoperation.The
refrigerantpipesarehotorcolddependingontheconditionoftheowing
refrigerant.Ifyoutouchthepipes,burnsorfrostbitemayresult.
• Afterstoppingoperation,besuretowaitatleastveminutesbeforeturn-
ingoffthemainpowerswitch.Otherwise,waterleakageorbreakdownmay
result.
1.5. UsingR410Arefrigerantairconditioners
Caution:
• Use C1220 copper phosphorus, for copper and copper alloy seamless
pipes,toconnecttherefrigerantpipes.Makesuretheinsidesofthepipes
areclean and donotcontain any harmfulcontaminantssuch as sulfuric
compounds,oxidants,debris,or dust.Usepipeswiththespeciedthick-
ness.(Refertopage5)
• Storethepipestobeusedduringinstallationindoorsandkeepbothends
of the pipes sealed until just before brazing. (Leave elbow joints, etc. in
theirpackaging.)Ifdust,debris,ormoistureenterstherefrigerantlines,oil
deteriorationorcompressorbreakdownmayresult.
• Useesteroil,etheroil,alkylbenzeneoil(smallamount)astherefrigeration
oilappliedtothearedsections.Ifmineraloilismixedintherefrigeration
oil,oildeteriorationmayresult.
• DonotuserefrigerantotherthanR410Arefrigerant.Ifanotherrefrigerantis
used,thechlorinewillcausetheoiltodeteriorate.
• Useavacuumpumpwithareverseowcheckvalve.
Ifthevacuumpumpoilowsbackwardintotherefrigerantlines,refrigerant
oildeteriorationmayresult.
• UsethefollowingtoolsspecicallydesignedforusewithR410Arefriger-
ant.The following tools arenecessaryto use R410Arefrigerant. Contact
yournearestdealerforanyquestions.
Tools (for R410A)
Gauge manifold Flare tool
Charge hose Size adjustment gauge
Gas leak detector Vacuum pump adapter
Torque wrench Electronic refrigerant charging scale
• Besuretousethecorrecttools.Ifdust,debris,ormoistureentersthere-
frigerantlines,refrigerationoildeteriorationmayresult.
• Donotuseachargingcylinder.Ifachargingcylinderisused,thecomposi-
tionoftherefrigerantwillchangeandtheefciencywillbelowered.
11.6. Accessoriesofoutdoorunit(Fig.1-1)
The parts show in the left are the accessories of this unit, which are afxed to the
inside of the service panel.
1Joint pipe........×1
2. Installationlocation
2.1. Refrigerantpipe(Fig.2-1)
► Checkthatthedifferencebetweentheheightsoftheindoorandoutdoor
units,thelengthofrefrigerantpipe,andthenumberofbendsinthepipe
arewithinthelimitsshownbelow.
Models APipe size (mm) BPipe length
(one way)
CHeight
difference
DNumber of
bends (one way)
Gas side Liquid side
RP200 ø25.4 ø9.52 Max. 120 m Max. 30 m Max. of 15
RP250 ø25.4 ø12.7 Max. 120 m Max. 30 m Max. of 15
• Height difference limitations are binding regardless of which unit, indoor or out-
door, is positioned higher.
EIndoor unit
FOutdoor unit
2.2. Choosingtheoutdoorunitinstallationlocation
• Avoid locations exposed to direct sunlight or other sources of heat.
• Select a location from which noise emitted by the unit will not inconvenience
neighbors.
• Select a location permitting easy wiring and pipe access to the power source and
indoor unit.
•
Avoid locations where combustible gases may leak, be produced, ow, or accumulate.
• Note that water may drain from the unit during operation.
• Select a level location that can bear the weight and vibration of the unit.
•
Avoid locations where the unit can be covered by snow. In areas where heavy snow fall is
anticipated, special precautions such as raising the installation location or installing a hood
on the air intake and air outlet must be taken to prevent the snow from blocking the air in-
take or blowing directly against it. This can reduce the airow and a malfunction may result.
• Avoid locations exposed to oil, steam, or sulfuric gas.
• Use the transportation handles of the outdoor unit to transport the unit. If the unit
is carried from the bottom, hands or ngers may be pinched.
2.3. Outlinedimensions(Outdoorunit)(Fig.2-2)
Fig.2-1
(mm)
Fig.1-1
Fig.2-2
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4
2. Installationlocation
Fig.3-1
2.4. Ventilationandservicespace
2.4.1. Windylocationinstallation
When installing the outdoor unit on a rooftop or other location unprotected from
the wind, situate the air outlet of the unit so that it is not directly exposed to strong
winds. Strong wind entering the air outlet may impede the normal airow and a
malfunction may result.
The following shows three examples of precautions against strong winds.
1Face the air outlet towards the nearest available wall about 100 cm away from
the wall. (Fig. 2-3)
2Install an optional air guide if the unit is installed in a location where strong
winds from a typhoon, etc. may directly enter the air outlet. (Fig. 2-4)
AAir outlet guide
3Position the unit so that the air outlet blows perpendicularly to the seasonal
wind direction, if possible. (Fig. 2-5)
BWind direction
Fig.2-4
Fig.2-3
Fig.2-5
2.4.2. Wheninstallingasingleoutdoorunit(Refertothelastpage)
Minimum dimensions are as follows, except for Max., meaning Maximum dimen-
sions, indicated.
1Obstacles at rear only (Fig. 2-6)
2Obstacles at rear and above only (Fig. 2-7)
3Obstacles at rear and sides only (Fig. 2-8)
4Obstacles at front only (Fig. 2-9)
* When using an optional air outlet guide, the clearance is 500 mm or more.
5Obstacles at front and rear only (Fig. 2-10)
* When using an optional air outlet guide, the clearance is 500 mm or more.
6Obstacles at rear, sides, and above only (Fig. 2-11)
• Do not install the optional air outlet guides for upward airow.
2.4.3.
Wheninstallingmultipleoutdoorunits(Refertothelastpage)
Leave 10 mm space or more between the units.
1Obstacles at rear only (Fig. 2-12)
2Obstacles at rear and above only (Fig. 2-13)
• No more than three units must be installed side by side. In addition, leave space as
shown.
• Do not install the optional air outlet guides for upward airow.
3Obstacles at front only (Fig. 2-14)
* When using an optional air outlet guide, the clearance is 1000 mm or more.
4Obstacles at front and rear only (Fig. 2-15)
* When using an optional air outlet guide, the clearance is 1000 mm or more.
5Single parallel unit arrangement (Fig. 2-16)
* When using an optional air outlet guide installed for upward airow, the clearance is 1000
mm or more.
6Multiple parallel unit arrangement (Fig. 2-17)
* When using an optional air outlet guide installed for upward airow, the clearance is 1500
mm or more.
7Stacked unit arrangement (Fig. 2-18)
• The units can be stacked up to two units high.
• No more than two stacked units must be installed side by side. In addition, leave space as
shown.
3. Installingtheoutdoorunit
• Be sure to install the unit in a sturdy, level surface to prevent rattling noises dur-
ing operation. (Fig. 3-1)
<Foundation specications>
Foundation bolt M10 (3/8")
Thickness of concrete 120 mm
Length of bolt 70 mm
Weight-bearing capacity 320 kg
• Make sure that the length of the foundation bolt is within 30 mm of the bottom
surface of the base.
• Secure the base of the unit rmly with four-M10 foundation bolts in sturdy loca-
tions.
Installingtheoutdoorunit
• Do not block the vent. If the vent is blocked, operation will be hindered and
breakdown may result.
• In addition to the unit base, use the installation holes it xes top panel on the
back of the unit to attach wires, etc., if necessary to install the unit. Use self-
tapping screws (ø5 × 15 mm or less) and install on site.
Warning:
• The unit must be securely installed on a structure that can sustain its
weight.Iftheunitismountedonanunstablestructure,itmayfalldownand
causedamageorinjuries.
• Theunit must beinstalledaccordingtothe instructionsin ordertomini-
mizetheriskofdamagefromearthquakes,typhoons,orstrongwinds.An
incorrectlyinstalledunitmayfalldownandcausedamageorinjuries.
AM10 (3/8") bolt
BBase
CAs long as possible.
DVent
Max. 30
(mm)
Min. 360
Min. 10
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5
4. Installingtherefrigerantpiping
4.1.
PrecautionsfordevicesthatuseR410Arefrigerant
• Refertopage3forprecautionsnotincludedbelowonusingaircondition-
erswithR410Arefrigerant.
• Useesteroil,etheroil,alkylbenzeneoil(smallamount)astherefrigeration
oilappliedtothearedsections.
• Use C1220 copper phosphorus, for copper and copper alloy seamless
pipes,toconnecttherefrigerantpipes.Userefrigerantpipeswiththethick-
nessesspeciedinthetabletothebelow.Make sure the insides of the
pipesarecleananddonotcontainanyharmfulcontaminantssuchassul-
furiccompounds,oxidants,debris,ordust.
Alwaysapplyno-oxidationbrazingwhenbrazingthepipes,otherwise,the
compressorwillthedamaged.
Warning:
Wheninstallingormovingtheairconditioner,useonlythespeciedrefriger-
ant(R410A)tochargetherefrigerantlines. Donotmixitwithanyotherre-
frigerantanddonotallowairtoremaininthelines.Airenclosedinthelines
cancausepressurepeaksresultinginaruptureandotherhazards.
Pipe size (mm) ø6.35 ø9.52 ø12.7 ø15.88 ø19.05 ø22.2 ø25.4 ø28.58
Thickness (mm) 0.8 0.8 0.8 1.0 1.0 1.0 1.0 1.0
• Donotusepipesthinnerthanthosespeciedabove.
• Use1/2HorHpipesifthediameteris22.2mmorlarger.
• FortheRP250,use1/2HorHpipesifthediameteris19.05mmorlarger.
4.2. Connectingpipes
• When commercially available copper pipes are used, wrap liquid and gas pipes
with commercially available insulation materials (heat-resistant to 100°C or more,
thickness of 12 mm or more).
• The indoor parts of the drain pipe should be wrapped with polyethylene foam
insulation materials (specic gravity of 0.03, thickness of 9 mm or more).
• Apply thin layer of refrigerant oil to pipe and joint seating surface before tighten-
ing are nut. A (Fig. 4-1)
• Use two wrenches to tighten piping connections. B (Fig. 4-1)
• Use leak detector or soapy water to check for gas leaks after connections are
completed.
• Apply refrigerating machine oil over the entire are seat surface. C (Fig. 4-1)
• Use the are nuts for the following pipe size. D (Fig. 4-1)
INDOOR UNIT RP50 RP60, 71 RP100-140
Gas side Pipe size (mm) ø12.7 ø15.88 ø15.88
Liquid side Pipe size (mm) ø6.35 ø9.52 ø9.52
• When bending the pipes, be careful not to break them. Bend radii of 100 mm to
150 mm are sufcient.
• Make sure the pipes do not contact the compressor. Abnormal noise or vibration
may result.
1Pipes must be connected starting from the indoor unit.
Flare nuts must be tightened with a torque wrench.
2Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil
(Applied on site).
• When usual pipe sealing is used, refer to Table 1 for aring of R410A refrigerant
pipes.
The size adjustment gauge can be used to conrm B measurements.
Table 1 (Fig. 4-2)
Copper pipe O.D.
(mm)
B (mm)
Flare tool for R410A Flare tool for R22·R407C
Clutch type
ø6.35 (1/4") 0 - 0.5 1.0 - 1.5
ø9.52 (3/8") 0 - 0.5 1.0 - 1.5
ø12.7 (1/2") 0 - 0.5 1.0 - 1.5
ø15.88 (5/8") 0 - 0.5 1.0 - 1.5
ø19.05 (3/4") 0 - 0.5 1.0 - 1.5
3Use the following procedure for connecting the gas-side piping. (Fig. 4-3)
1 Braze the EJoint pipe provided to the outdoor unit using locally procured braz-
ing materials and CLocal piping without oxygen.
2 Connect the EJoint pipe to the gas-side Stop valve.
Use two wrenches to tighten the are nut.
* If order is reversed, refrigerant leak occurs because of the part damaging by brazing re.
• For PEA-RP200, 250, 400, 500GA
The method of pipe connection is brazing connection.
PEA-200 PEA-250 PEA-400 PEA-500
Gas side Pipe size (mm) ø25.4 ø25.4 ø25.4 ø25.4
Liquid side Pipe size (mm) ø9.52 ø12.7 ø9.52 ø12.7
A(Fig. 4-1)
Copper pipe O.D.
(mm)
Flare dimensions
øA dimensions (mm)
ø6.35 8.7 - 9.1
ø9.52 12.8 - 13.2
ø12.7 16.2 - 16.6
ø15.88 19.3 - 19.7
ø19.05 23.6 - 24.0
B(Fig. 4-1)
Copper pipe O.D.
(mm)
Flare nut O.D.
(mm)
Tightening torque
(N·m)
ø6.35 17 14 - 18
ø6.35 22 34 - 42
ø9.52 22 34 - 42
ø12.7 26 49 - 61
ø12.7 29 68 - 82
ø15.88 29 68 - 82
ø15.88 36 100 - 120
ø19.05 36 100 - 120
AFlare cutting dimensions
BFlare nut tightening torque
ADie
BCopper pipe
AStop valve (gas-side)
BSeal section
CLocal piping
DDouble spanner section
EJoint pipe
FPipe cover
Fig.4-1
Fig.4-2 Fig.4-3
45° ± 2°
90° ± 0.5°
R0.4 ~ R0.8
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6
4. Installingtherefrigerantpiping
AFront piping cover
BPiping cover
CStop valve
DService panel
EBend radius : 100 mm-150 mm
A Stop valve <Liquid side>
B Stop valve <Gas side>
CService port
DOpen/Close section
ELocal pipe
FSeal section
(Seal the end of the heat insulation
material at the pipe connection section
with whatever seal material you have on
hand so that water does not inltrate the
heat insulation material.)
GPipe cover
HDo not use a wrench here.
Refrigerant leakage may result.
IDouble spanner section
(Do not apply a spanner other than to
this section. Doing so would cause cool-
ant leaks.)
4.3. Refrigerantpiping(Fig.4-4)
Remove the service panel D(three screws) and the front piping cover A(two
screws) and rear piping cover B(two screws).
1Perform refrigerant piping connections for the indoor/outdoor unit when the out-
door unit’s stop valve is completely closed.
2Vacuum-purge air from the indoor unit and the connection piping.
3After connecting the refrigerant pipes, check the connected pipes and the in-
door unit for gas leaks. (Refer to 4.4 Refrigerant pipe airtight testing method)
4A high-performance vacuum pump is used at the stop valve service port to
maintain a vacuum for an adequate time (at least one hour after reaching –
101 kPa (5 Torr)) in order to vacuum dry the inside of the pipes. Always check
the degree of vacuum at the gauge manifold. If there is any moisture left in the
pipe, the degree of vacuum is sometimes not reached with short-time vacuum
application.
After vacuum drying, completely open the stop valves (both liquid and gas) for
the outdoor unit. This completely links the indoor and outdoor coolant circuits.
• If the vacuum drying is inadequate, air and water vapor remain in the coolant
circuits and can cause abnormal rise of high pressure, abnormal drop of low
pressure, deterioration of the freezing machine oil due to moisture, etc.
• If the stop valves are left closed and the unit is operated, the compressor and
control valves will be damaged.
• Use a leak detector or soapy water to check for gas leaks at the pipe connec-
tion sections of the outdoor unit.
• Do not use the refrigerant from the unit to purge air from the refrigerant lines.
• After the valve work is completed, tighten the valve caps to the correct
torque: 20 to 25 N·m (200 to 250 kgf·cm).
Failure to replace and tighten the caps may result in refrigerant leakage. In
addition, do not damage the insides of the valve caps as they act as a seal to
prevent refrigerant leakage.
5Use sealant to seal the ends of the pipe cover around the pipe connection sec-
tions to prevent water from entering the thermal insulation.
4.4. Refrigerantpipeairtighttestingmethod(Fig.4-5)
(1) Connect the testing tools.
• Make sure the stop valves ABare closed and do not open them.
• Add pressure to the refrigerant lines through the service port Cof the liquid
stop valve A.
(2) Do not add pressure to the specied pressure all at once; add pressure little by little.
1Pressurize to 0.5 MPa (5 kgf/cm2G), wait ve minutes, and make sure the
pressure does not decrease.
2Pressurize to 1.5 MPa (15 kgf/cm2G), wait ve minutes, and make sure the
pressure does not decrease.
3Pressurize to 3.6 MPa (36 kgf/cm2G) for the RP200 or to 4.15 MPa (41.5
kgf/cm2G) for the RP250 and measure the surrounding temperature and
refrigerant pressure.
(3) If the specied pressure holds for about one day and does not decrease, the
pipes have passed the test and there are no leaks.
• If the surrounding temperature changes by 1°C, the pressure will change by
about 0.01 MPa (0.1 kgf/cm2G). Make the necessary corrections.
(4) If the pressure decreases in steps (2) or (3), there is a gas leak. Look for the
source of the gas leak.
4.5. Stopvalveopeningmethod
The stop valve opening method varies according to the outdoor unit model. Use
the appropriate method to open the stop valves.
(1) Liquid side of stop valve (Fig. 4-6)
1Remove the cap and turn the valve rod counterclockwise as far as it will go with
the use of a 4 mm hexagonal wrench. Stop turning when it hits the stopper.
(Approximately 10 revolutions)
2Make sure that the stop valve is open completely and rotate the cap back to its
original position.
(2) Gas side of stop valve (Fig. 4-7)
1Remove the cap, pull the handle toward you and rotate 1/4 turn in a counter-
clockwise direction to open.
2Make sure that the stop valve is open completely, push in the handle and rotate
the cap back to its original position.
Refrigerant pipes are protectively wrapped
• The pipes can be protectively wrapped up to a diameter of ø90 before or after
connecting the pipes. Cut out the knockout in the pipe cover following the groove
and wrap the pipes.
Pipe inlet gap
• Use putty or sealant to seal the pipe inlet around the pipes so that no gaps re-
main. (If the gaps are not closed, noise may be emitted or water and dust will
enter the unit and breakdown may result.)
Fig.4-4
Fig.4-5
(1)
Fig.4-7Fig.4-6
(2)
AValve
BUnit side
COperation section
DCap
ELocal pipe side
FPipe cover
GService port
HWrench hole
IDouble spanner section
(Do not apply a spanner other than to this section. Doing
so would cause coolant leaks.)
JSeal section
(Seal the end of the heat insulation material at the pipe con-
nection section with whatever seal material you have on hand
so that water does not inltrate the heat insulation material.)
KHandle
4.6. Additionofrefrigerant(Fig.4-8)
• Additional charging is not necessary for this unit if the pipe length does not ex-
ceed 30 m.
• If the pipe length exceeds 30 m, charge the unit with additional R410A refrigerant
according to the permitted pipe lengths in the chart below.
* When the unit is stopped, charge the unit with the additional refrigerant
through the liquid stop valve after the pipe extensions and indoor unit have
been vacuumized.
When the unit is operating, add refrigerant to the gas check valve using a
safety charger. Do not add liquid refrigerant directly to the check valve.
* After charging the unit with refrigerant, note the added refrigerant amount on
the service label (attached to the unit).
Refer to the “1.5. Using R410A refrigerant air conditioners” for more informa-
tion.
• Be careful when installing multiple units. Connecting to an incorrect indoor unit
can lead to abnormally high pressure and have a serious effect on operation per-
formance.
BG79U791K01_en.indd 6 9/18/2007 3:43:20 PM
7
4. Installingtherefrigerantpiping
4.7. PrecautionswhenreusingexistingR22refrigerantpipes
• Refer to the owchart below to determine if the existing pipes can be used and if it is necessary to use a lter dryer.
• If the diameter of the existing pipes is different from the specied diameter, refer to technological data materials to conrm if the pipes can be used.
• If the diameter of the existing gas side pipe is bigger than the specied diameter, turn SW8-1 on.
Fig.4-8
1Indoor unit
2Outdoor unit
3Main piping
4Branch piping
5Multi distribution
pipe (option)
Outdoor unit : RP250 A: ø12.7 ... 65 m
Indoor unit 1 : RP71 B: ø9.52 ... 5 m
Indoor unit 2 : RP71 C: ø9.52 ... 5 m
Indoor unit 3 : RP71 D: ø9.52 ... 5 m
Main piping ø12.7 is A = 65 m
Branch piping ø9.52 is B + C + D = 15 m
Therefore, the amount of additional charge is: 65 ×0.12 + 15 ×0.06 -3.6=5.1 (kg)
(Fractions are rounded up)
Max. 1m
Outdoor unit At time of shipping
(kg)
A+B+C+D
Amount of additional refrigerant charge (kg)
30 m and less 31-40 m and less 41-50 m and less 51-60 m and less 61-70 m and less 71-120 m and less
RP200 6.5 No additional
charge necessary
0.9 kg 1.8 kg 2.7 kg 3.6 kg Calculate the
amount of additional
refrigerant charge
using formula pro-
vided below.
RP250 7.1 1.2 kg 2.4 kg 3.6 kg 4.8 kg
Whenlengthexceeds70m
When the total length of the piping exceeds 70 m, calculate the amount of additional charge based on the following requirements.
Note: If the calculation produces a negative number (i.e. a “minus” charge), of if calculation results in an amount that is less than the “Additional charge amount for 70 m”,
perform the additional charge using the amount shown in “Additional charge amount for 70 m”.
Amount of additional
charge =
Main piping:
Liquid line size
ø12.7 overall length ×
0.12 +
Main piping:
Liquid line size
ø9.52 overall length ×
0.09 (Gas line: ø28.58) +
Branch piping:
Liquid line size
ø9.52 overall length ×
0.06 (Gas line: ø15.88) +
Branch piping:
Liquid line size
ø6.35 overall length ×
0.02 (Gas line: ø15.88) – 3.6 (kg)
(kg) (m) × 0.12 (kg/m) (m) × 0.09 (kg/m) (m) × 0.06 (kg/m) (m) × 0.02 (kg/m)
Additional charge amount
for 70 meters
RP200 3.6 kg
RP250 4.8 kg
* Refer to page 11
The existing pipes cannot be reused.
Use new pipes.
Replacement operation
Theexistingpipethicknessmeetsspeci-
cationsandthepipesarenotdamaged.
Theexistingpipethicknessdoesnotmeet
specicationsorthepipesaredamaged.
Measure the existing pipe thickness and
check for damage.
Check if the existing air conditioner can operate.
After operating the cooling system for about 30
minutes, do a pump down work.
Disconnect the existing air conditioner from the
pipes.
Attach the new air conditioner
Perform the airtight test, vacuum air purging, ad-
ditional refrigerant charging (if necessary), and
gas leak check.
* If the existing air conditioner cannot operate,
use a refrigerant recovery device to collect the
refrigerant.
* In case existing pipes were used for gas or oil
heat pump systems, be sure to clean the pipes.
BG79U791K01_en.indd 7 9/18/2007 3:43:20 PM
8
4. Installingtherefrigerantpiping
Fig.4-9
4.8. Fortwin/triple/quadruplecombination(Fig.4-9)
• When this unit is used as a FREE COMPO MULTI unit, install the refrigerant
piping with the restrictions indicated in the drawing on the left. In addition, if the
restrictions are going to be exceeded, or if there are going to be combinations of
indoor and outdoor units, refer to installation instructions for the indoor unit for
details about the installation.
Outdoor unit
Permissible total
piping length
A+B+C+D+E
A+B or A+C
or
A+D or A+E
Charge-less
piping length
A+B+C+D+E
RP200
RP250 120 m and less 100 m and less 30 m and less
A+B+C(+D)(+E) 120 m
* “D” is for triple.
* “E” is for four (quadruple).
|B–C |
|B–D |8 m
|C–D |
AIndoor unit
BOutdoor unit
CMulti distribution pipe (option)
DHeight difference (Indoor unit-
Outdoor unit) Max. 30 m
EHeight difference (Indoor unit-
Indoor unit) Max. 1 m
A: Main piping
B, C, D, E: Branch piping
<Limits of refrigerant piping installation>
5. Drainagepipingwork
Outdoorunitdrainagepipeconnection
When drain piping is necessary, use the drain socket or the drain pan (option). Drain socket PAC-SG61DS-E
Drain pan PAC-SG64DP-E
6. Electricalwork
6.1. Outdoorunit(Fig.6-1,Fig.6-2)
(1) Remove the service panel.
(2) Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
|A+B |
|A+C |Max. 100 m
|A+D |
|A+E |
Outdoor unit
|B-C |or |B-D |or
|B-E |or |C-D |or
|C-E |or |D-E |
No. of bends
RP200
RP250 8 m and less Within 15
AIndoor unit
BOutdoor unit
CRemote controller
DMain switch (Breaker)
EGrounding
For Power
For Power
For Heater For Heater For Heater For Heater
For Heater
*With Heater
model only
APower supply terminal block (L1, L2, L3, N, )
BIndoor/outdoor connection terminal block (S1, S2, S3)
CService panel
DClamp
* Clamp the cables so that they do not contact the center of the service panel or the gas
valve.
Note: Iftheprotectivesheetforthe
electricalboxisremoveddur-
ingservicing,besuretorein-
stallit.
* Except PEA-RP200, 250, 400, 500GA
PUHZ-200, 250 PEA-200, 250 APower supply
BEarth leakage breaker
CCircuit breaker or local switch
DLCD remote controller
EOutdoor unit
FIndoor unit
GPower cable wiring
HIndoor/Outdoor connection wiring
IGrounding
Fig.6-1
* In case of PEA-200, 250
BG79U791K01_en.indd 8 9/18/2007 3:43:21 PM
9
6. Electricalwork
6.2. Fieldelectricalwiring
• If the wiring connecting the indoor and outdoor units is longer than 80 m, use separate indoor/outdoor unit power supplies. (Refer to the installation manuals of the in-
door units for more information.)
Indoor unit model RP200, 250
Outdoor unit
Power supply
Phase
Frequency & Voltage
3N~(3ph 4-wires), 50 Hz,
380 - 400 - 415 V
Outdoor unit input capacity *1
Main switch (Breaker) 32 A
Wiring
Wire No. × size
(mm2)
Outdoor unit power supply 5 × Min. 4
Indoor unit-Outdoor unit *2 Cable length 50 m : 3 × 4 (Polar)/Cable length 80 m : 3 × 6 (Polar)
Indoor unit-Outdoor unit earth 1 × Min. 2.5
Remote controller-Indoor unit *3 2 × 0.69 (Non-polar)
Circuit rating
Outdoor unit L1-N, L2-N, L3-N AC 220 - 230 - 240 V
Indoor unit-Outdoor unit S1-S2 *4 AC 220 - 230 - 240 V
Indoor unit-Outdoor unit S2-S3 *4 DC 24 V
Remote controller-Indoor unit *4 DC 12 V
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. 80 m Total Max. including all indoor/indoor connection is 80 m.
• Use one cable for S1 and S2 and another for S3 as shown in the picture.
• Max. 50 m Total Max. for PEA. Wiring size 3 × 1.5 (Polar).
*3. A 10 m wire is attached in the remote controller accessory.
*4. The voltage are NOT against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
Notes:1.Wiringsizemustcomplywiththeapplicablelocalandnationalcode.
2.
PowersupplycordsandIndoorunit/Outdoorunitconnectingcordsshallnotbelighterthanpolychloroprenesheathedexiblecord.(Design60245IEC57)
3.Useanearthwirewhichislongerthantheothercordssothatitwillnotbecomedisconnectedwhentensionisapplied.
“A-Control”
Outdoor Unit
3 poles isolator (Switch)
380/400/415 V 50 Hz
Three phase (4 wires)
Isolator (Switch)
“A-Control”
Indoor Unit
APower supply
BEarth leakage breaker
CCircuit breaker or local switch
DLCD remote controller
EOutdoor unit
FIndoor unit
GPower cable wiring
HIndoor/Outdoor connection wiring
IGrounding
Fig.6-2
* In case of PEA-400, 500
(No.1 Outdoor)
PUHZ-200, 250 PEA-400, 500
(TB4-1) (TB4-2)
(No.2 Outdoor)
PUHZ-200, 250
AOutdoor unit
BIndoor unit
CMain remote controller
DSubordinate remote controller
EStandard (Refrigerant address = 00)
FRefrigerant address = 01
GRefrigerant address = 02
HRefrigerant address = 03
IRefrigerant address = 14
JRefrigerant address = 15
* In case of PEA-200, 250 * In case of PEA-400, 500
BG79U791K01_en.indd 9 9/18/2007 3:43:22 PM
10
7. Testrun
6. Electricalwork
7.1. Beforetestrun
► Aftercompletinginstallationandthewiringandpipingoftheindoorand
outdoorunits,checkforrefrigerantleakage,loosenessinthepowersup-
plyorcontrolwiring,wrongpolarity,andnodisconnectionofonephase
inthesupply.
► Use a 500-volt megohmmeter to check that the resistance between the
powersupplyterminalsandgroundisatleast1.0MΩ.
► Donotcarryoutthistestonthecontrolwiring(lowvoltagecircuit)termi-
nals.
Warning:
Donotusetheairconditioneriftheinsulationresistanceislessthan1.0MΩ.
Insulationresistance
After installation or after the power source to the unit has been cut for an extended
period, the insulation resistance will drop below 1 MΩ due to refrigerant accumulat-
ing in the compressor. This is not a malfunction. Perform the following procedures.
1. Remove the wires from the compressor and measure the insulation resistance
of the compressor.
2. If the insulation resistance is below 1 MΩ, the compressor is faulty or the resist-
ance dropped due the accumulation of refrigerant in the compressor.
3. After connecting the wires to the compressor, the compressor will start to warm
up after power is supplied. After supplying power for the times indicated below,
measure the insulation resistance again.
• The insulation resistance drops due to accumulation of refrigerant in the com-
pressor. The resistance will rise above 1 MΩafter the compressor is warmed
up for four hours.
(The time necessary to warm up the compressor varies according to atmos-
pheric conditions and refrigerant accumulation.)
• To operate the compressor with refrigerant accumulated in the compressor,
the compressor must be warmed up at least 12 hours to prevent breakdown.
4. If the insulation resistance rises above 1 MΩ, the compressor is not faulty.
Caution:
• Thecompressorwillnotoperateunlessthepowersupplyphaseconnec-
tion is correct.
• Turnonthepoweratleast12hoursbeforestartingoperation.
- Starting operation immediately after turning on the main power switch can result
in severe damage to internal parts. Keep the power switch turned on during the
operational season.
► Thefollowingmustbecheckedaswell.
• The outdoor unit is not faulty. LED1 and LED2 on the control board of the out-
door unit ash when the outdoor unit is faulty.
• Both the gas and liquid stop valves are completely open.
• A protective sheet covers the surface of the DIP switch panel on the control board
of the outdoor unit. Remove the protective sheet to operate the DIP switches easily.
Warning:
IncaseofA-controlwiring,thereishighvoltagepotentialontheS3terminalcausedbyelectricalcircuitdesignthathasnoelectricalinsulationbetweenpow-
erlineandcommunicationsignalline.Therefore,pleaseturnoffthemainpowersupplywhenservicing.AnddonottouchtheS1,S2,S3terminalswhenthe
powerisenergized.Ifisolatorshouldbeusedbetweenindoorunitandoutdoorunit,pleaseuse3-polestype.
WIRINGSPECIFICATIONSFOR220-240V50Hz
(INDOOR-OUTDOORCONNECTINGCABLE)
Cross section of cable Wire size (mm2) Number of wires Polarity L (m)*6
Round 2.5 3 Clockwise : S1-S2-S3
* Pay attention to stripe of yellow and green (30)
*2
Flat 2.5 3 Not applicable
(Because center wire has no cover nish) Not applicable
*5
Flat 1.5 4 From left to right : S1-Open-S2-S3 (18)
*3
Round 2.5 4 Clockwise : S1-S2-S3-Open
*Connect S1 and S3 to the opposite angle (30)
*4
*1 :Power supply cords of appliances shall not be lighter than design 60245 IEC or
227 IEC.
*2 :In case that cable with stripe of yellow and green is available.
*3 :In case of regular polarity connection (S1-S2-S3), wire size is 1.5 mm2.
*4 :In case of regular polarity connection (S1-S2-S3).
*5 : In the at cables are connected as this picture, they can be used up to 30 m.
*6 :Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, Humidity or mate-
rials, etc.
(3C Flat cable ×2)
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufcient insulation to ground or a poor electrical contact at the inter-
mediate connection point.
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
BG79U791K01_en.indd 10 9/18/2007 3:43:23 PM
11
8. SpecialFunctions
8.1. Lownoisemode(on-sitemodication)(Fig.8-1)
By performing the following modication, operation noise of the outdoor unit can be
reduced by about 3-4 dB.
The low noise mode will be activated when a commercially available timer or the
contact input of an ON/OFF switch is added to the CNDM connector (option) on
the control board of the outdoor unit.
• The ability varies according to the outdoor temperature and conditions, etc.
1Complete the circuit as shown when using the external input adapter (PAC-
SC36NA). (Option)
2SW1 ON: Low noise mode
SW1 OFF: Normal operation
ACircuit diagram example
(low noise mode)
BOn-site arrangement
CExternal input adapter (PAC-SC36NA)
DOutdoor unit control board
EMax. 10 m
Red
A
SW1 CNDM
Fig.8-1
Brown
Orange
ACircuit diagram example
(Demand function)
BOn-site arrangement
CExternal input adapter (PAC-SC36NA)
DOutdoor unit control board
EMax. 10 m
8.2. Demandfunction(on-sitemodication)(Fig.8-2)
By performing the following modication, energy consumption can be reduced to 0
–100% of the normal consumption.
The demand function will be activated when a commercially available timer or the
contact input of an ON/OFF switch is added to the CNDM connector (option) on
the control board of the outdoor unit.
1Complete the circuit as shown when using the external input adapter (PAC-
SC36NA). (Option)
2By setting SW7-1 and SW7-2 on the control board of the outdoor unit, the
energy consumption (compared to the normal consumption) can be limited as
shown below.
SW7-1 SW7-2 Energy consumption (SW2 ON)
OFF OFF 0% (Stop)
ON OFF 50%
OFF ON 75%
A
SW2 CNDM
3
1Fig.8-2
Red
Brown
Orange
3
1
7. Testrun
7.3. Testrun
7.3.1. UsingSW4inoutdoorunit
SW4-1 ON Cooling operation
SW4-2 OFF
SW4-1 ON Heating operation
SW4-2 ON
* After performing the test run, set SW4-1 to OFF.
• After power is supplied, a small clicking noise may be heard from the inside of
the outdoor unit. The electronic expansion valve is opening and closing. The unit
is not faulty.
• A few seconds after the compressor starts, a clanging noise may be heard from
the inside of the outdoor unit. The noise is coming from the check valve due to
the small difference in pressure in the pipes. The unit is not faulty.
ThetestrunoperationmodecannotbechangedbyDIPswitchSW4-2dur-
ingthetestrun.(Tochangethetestrunoperationmodeduringthetestrun,
stopthetestrunbyDIPswitchSW4-1.Afterchangingthetestrunoperation
mode,resumethetestrunbyswitchSW4-1.)
7.3.2. Usingremotecontroller
Refer to the indoor unit installation manual.
7.2. Unitreplacementoperation
► WhenreusingexistingpipesthatcarriedR22refrigerant,replacementop-
erationmustbeperformedbeforeperformingatestrun.
• If new pipes are used, these procedures are not necessary.
Replacementoperationprocedures
1Supply power.
2Set DIP switch SW8-2 on the control board of the outdoor unit to ON to start
replacement operation.
* The replacement operation is performed using the cooling system. Cool air
will ow from the indoor unit during the replacement operation.
* During the replacement operation, is displayed on the remote controller
and LED1 and LED2 on the control board of the outdoor unit ash together.
3The duration of the replacement operation is determined by the length of the
piping. Always perform the replacement operation for longer than the stipulated
time.
* Use one of the following methods to complete the replacement operation.
When the replacement operation ends, the unit will automatically stop.
(1) Set SW8-2 from ON to OFF (when ending a replacement operation of less
than 2 hours).
• Because the replacement operation restarts each time SW8-2 is set from
OFF to ON, always perform the replacement operation for longer than the
stipulated time.
Required replacement operation times
Pipe Length Replacement Operation Time
0 to 20 meters 30 minutes or more
21 to 30 meters 45 minutes or more
31 to 50 meters 60 minutes or more
51 to 70 meters 100 minutes or more
(2) Allow the replacement operation to automatically stop after 2 hours (operation
stops while SW8-2 is still in the ON position).
• When the replacement operation has ended automatically after 2 hours of
operation, there is no need to set SW8-2 from ON to OFF; normal air condi-
tioning operation is possible with SW8-2 set to ON. However, to repeat the
replacement operation, SW8-2 rst has to be set to OFF and then to ON.
* If the indoor temperature is less than 15°C, the compressor will operate inter-
mittently but the unit is not faulty.
BG79U791K01_en.indd 11 9/18/2007 3:43:23 PM
12
* Set the refrigerant address using the DIP switch of the outdoor unit.
1Wiring from the Remote Control
This wire is connected to TB5 (terminal board for remote controller) of the indoor
unit (non-polar).
2When a Different Refrigerant System Grouping is Used.
Up to 16 refrigerant systems can be controlled as one group using the slim MA re-
mote controller.
Note:
Insinglerefrigerantsystem(twin/triple),thereisnoneedofwiring2.
9. Systemcontrol(Fig.9-1)
SW1
Function table
<SW1>
Function Operation according to switch setting
ON OFF
SW1
function
settings
1 Compulsory
defrosting Start Normal
2 Error history
clear Clear Normal
3
4
5
6
Refrigerant
system ad-
dress setting
Settings for outdoor unit addresses
0 to 15
ON
OFF
AOutdoor unit
BIndoor unit
CMaster remote controller
DSubordinate remote controller
EStandard 1:1 (Refrigerant address = 00)
FSimultaneous twin (Refrigerant address = 01)
GSimultaneous triple (Refrigerant address = 02)
ESW 1 - 3 ~ 6
FSW 1 - 3 ~ 6
GSW 1 - 3 ~ 6
Fig.9-1
TB1
A GFA
AE
B B B B B B
DC
TB1 TB1
TB4
TB5
TB4
TB5
TB4 TB4
TB5
TB4 TB4
1
1
2
ON
OFF
ON
OFF
ON
OFF
3 4 5 6
3 4 5 6
3 4 5 6
2
8. SpecialFunctions
8.3. Refrigerantcollecting(pumpdown)
Perform the following procedures to collect the refrigerant when moving the indoor
unit or the outdoor unit.
1Supply power (circuit breaker).
* When power is supplied, make sure that “CENTRALLY CONTROLLED” is not
displayed on the remote controller. If “CENTRALLY CONTROLLED” is dis-
played, the refrigerant collecting (pump down) cannot be completed normally.
2After the gas stop valve is closed, set the SWP switch on the control board of
the outdoor unit to ON. The compressor (outdoor unit) and ventilators (indoor
and outdoor units) start operating and refrigerant collecting operation begins.
LED1 and LED2 on the control board of the outdoor unit are lit.
* Only set the SWP switch (push-button type) to ON if the unit is stopped. How-
ever, even if the unit is stopped and the SWP switch is set to ON less than
three minutes after the compressor stops, the refrigerant collecting operation
cannot be performed. Wait until compressor has been stopped for three min-
utes and then set the SWP switch to ON again.
3Because the unit automatically stops in about two to three minutes after the
refrigerant collecting operation (LED1 and LED2 are lit), be sure to quickly
close the gas stop valve. When LED1 and LED2 are lit and the outdoor unit is
stopped, open the liquid stop valve completely, and then repeat step 2after
three minutes have passed.
* If the refrigerant collecting operation has been completed normally (LED1
and LED2 are lit), the unit will remain stopped until the power supply is turned
off.
4Turn off the power supply (circuit breaker).
* Note that when the length of the extension piping is long, it may not be pos-
sible to perform a pump-down operation. When performing the pump-down
operation, make sure that the low pressure is lowered to near 0 MPa (gauge).
BG79U791K01_en.indd 12 9/18/2007 3:43:24 PM
Please be sure to put the contact address/telephone number on
this manual before handing it to the customer.
This product is designed and intended for use in the residential,
commercial and light-industrial environment.
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Printed in Japan
BG79U791K01
• Low Voltage Directive 2006/95/ EC
• Electromagnetic Compatibility Directive 89/336/
EEC
The product at hand is
based on the following
EU regulations:
BG79U791K01_cover.indd 2 9/17/2007 5:03:22 PM
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