Mitsubishi Electric Mr.SLIM PSA-M-KA Series User manual
ОРНАТУ БОЙЫНША НҰСҚАУЛЫҚ
Қауіпсіз және дұрыс пайдалану үшін кондиционер блогын орнатпас бұрын осы нұсқаулықты және сыртқы
блокты орнату бойынша нұсқаулықты мұқият оқып шығыңыз.
ՏԵՂԱԴՐՄԱՆ ՁԵՌՆԱՐԿ
Նախքան օդորակչի բլոկը տեղադրելը շադիր կարդացեք այս և արտաքին բլոկի տեղադրման
ձեռնարկները՝ անվտանգ և ճիշտ կիրառման համար:
INSTALLATION MANUAL
For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
РУКОВОДСТВО ПО УСТАНОВКЕ
Для обеспечения безопасной и надлежащей эксплуатации внимательно прочтите данное руководство и
руководство по установке наружного прибора перед установкой кондиционера.
ПОСІБНИК З УСТАНОВЛЕННЯ
Для правильної та безпечної експлуатації зовнішнього блока обов’язково перед його встановленням
прочитайте посібник з установлення.
ДЛЯ СПЕЦІАЛІСТА З МОНТАЖУ
Українська
Հայերեն
ДЛЯ УСТАНОВИТЕЛЯ
Қазақ
Русский
FOR INSTALLER
English
ОРНАТУШЫ ҮШІН
ՏԵՂԱԴՐՈՂԻ ՀԱՄԱՐ
AIR CONDITIONERS
КОНДИЦИОНЕРЫ
КОНДИЦИОНЕРЛЕР
ՕԴՈՐԱԿԻՉՆԵՐ
КОНДИЦІОНЕРИ
PSA-M·KA Series
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1. Safety precautions.....................................................................................1
2. Installation location....................................................................................3
3. Installing the indoor unit ............................................................................4
4. Installing the refrigerant piping ..................................................................5
5. Drainage piping work.................................................................................7
6. Electrical work ...........................................................................................8
7. Test run....................................................................................................17
8. Easy maintenance function .....................................................................19
1. Safety precautions
►Beforeinstallingtheunit,makesureyoureadallthe“SafetyPrecautions”.
►The“SafetyPrecautions”provideveryimportantpointsregardingsafety.Makesureyoufollowthem.
►Pleasereporttoyoursupplyauthorityorobtaintheirconsentbeforeconnectingthisequipmenttothepowersupplysystem.
Symbolsusedinthetext
Warning:
Describesprecautionsthatshouldbeobservedtopreventdangerofinjuryor
deathtotheuser.
Caution:
Describesprecautionsthatshouldbeobservedtopreventdamagetothe
unit.
Symbolsusedintheillustrations
: Indicates a part which must be grounded.
: Be sure not to do.
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.
MEANINGSOFSYMBOLSDISPLAYEDONINDOORUNITAND/OROUTDOORUNIT
WARNING
(Risk of re)
This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
In case that refrigerant type is R32, this unit uses a ammable refrigerant.
If refrigerant leaks and comes in contact with re or heating part, it will create harmful gas and there is risk of re.
Read the OPERATION MANUAL carefully before operation.
Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.
Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.
Warning:
• Carefullyreadthelabelsafxedtothemainunit.
• Aska dealer oranauthorizedtechnicianto install,relocateandrepairthe
unit.
• Theusershouldneverattempttorepairtheunitortransferittoanotherloca-
tion.
• Donotaltertheunit.Itmaycausere,electricshock,injuryorwaterleakage.
• Forinstallationandrelocationwork,followtheinstructionsintheInstallation
Manualandusetoolsandpipecomponentsspecicallymadeforusewith
refrigerantspeciedintheoutdoorunitinstallationmanual.
• Theunitmustbeinstalledaccordingtotheinstructionsinordertomini-
mizethe riskofdamagefrom earthquakes,typhoons,orstrong winds.An
incorrectlyinstalledunitmayfalldownandcausedamageorinjuries.
• Theunitmustbesecurelyinstalledonastructurethatcansustainits
weight.
• Theapplianceshallbestoredinawell-ventilatedareawheretheroomsize
correspondstotheroomareaasspeciedforoperation.
• Iftheairconditionerisinstalledinasmallroomorclosedroom,measures
must be takento preventthe refrigerantconcentration in the roomfrom
exceedingthe safety limit in the event of refrigerant leakage.Shouldthe
refrigerantleakandcausetheconcentrationlimittobeexceeded,hazards
duetolackofoxygenintheroommayresult.
• Keepgas-burningappliances,electricheaters,andotherresources(igni-
tionsources)awayfromthelocationwhereinstallation,repair,andotherair
conditionerworkwillbeperformed.
Ifrefrigerant comesintocontactwithaame,poisonous gaseswillbere-
leased.
• Ventilatetheroomifrefrigerantleaksduringoperation.Ifrefrigerantcomes
intocontactwithaame,poisonousgaseswillbereleased.
• Donotuseintermediateconnectionoftheelectricwires.
• Allelectricworkmustbeperformedbyaqualiedtechnicianaccordingto
localregulationsandtheinstructionsgiveninthismanual.
• Useonlyspeciedcablesforwiring.Thewiringconnectionsmustbemade
securelywithnotensionappliedonthe terminal connections.Also,never
splicethecablesforwiring(unlessotherwiseindicatedinthisdocument).
Failuretoobservetheseinstructionsmayresultinoverheatingorare.
• Wheninstallingorrelocating,orservicingtheairconditioner,useonlythe
speciedrefrigerantwrittenonoutdoorunittochargetherefrigerantlines.
Donotmixitwithanyotherrefrigerantanddonotallowairtoremaininthe
lines.
Ifairismixedwiththerefrigerant,thenitcanbethecauseofabnormalhigh
pressure in the refrigerant line, and may result in an explosion and other
hazards.
The use of any refrigerant otherthanthatspecifiedfor the system will
causemechanicalfailureorsystemmalfunctionorunitbreakdown.Inthe
worstcase,thiscouldleadtoaseriousimpedimenttosecuringproduct
safety.
• Theapplianceshallbeinstalledinaccordancewithnationalwiringregula-
tions.
• Thisapplianceisnotintendedforusebypersons(includingchildren)with
reducedphysical,sensoryormentalcapabilities,orlackofexperienceand
knowledge,unlesstheyhavebeengivensupervisionorinstructioncon-
cerninguseoftheappliancebyapersonresponsiblefortheirsafety.
• Childrenshouldbesupervisedtoensurethattheydonotplaywiththeap-
pliance.
• Theelectricalequipmentcoverpaneloftheunitmustbermlyattached.
• Ifthesupplycordisdamaged,itmustbereplacedbythemanufacturer,its
serviceagentorsimilarlyqualiedpersonsinordertoavoidahazard.
• UseonlyaccessoriesauthorizedbyMitsubishiElectricandaskadealeror
anauthorizedtechniciantoinstallthem.
• Afterinstallationhasbeencompleted,checkforrefrigerantleaks.Ifrefrig-
erantleaksintotheroomandcomesintocontactwiththeameofaheater
orportablecookingrange,poisonousgaseswillbereleased.
• Do not use means to accelerate the defrosting process or to clean, other
thanthoserecommendedbythemanufacturer.
• Theapplianceshallbestoredinaroomwithoutcontinuouslyoperatingig-
nitionsources(forexample:openames,anoperatinggasapplianceoran
operatingelectricheater).
• Donotpierceorburn.
Contents
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1.2. Beforeinstallationorrelocation
Caution:
• Be extremelycarefulwhentransportingtheunits. Twoormorepersons
areneededtohandletheunit,asitweighs20kgormore.Donotgraspthe
packagingbands.Wearprotectiveglovesasyoucaninjureyourhandson
thensorotherparts.
• Besuretosafelydisposeofthepackagingmaterials.Packagingmaterials,
suchas nails andother metalor woodenpartsmay cause stabsor other
injuries.
• Thermalinsulationoftherefrigerantpipeisnecessarytopreventcondensation.
Iftherefrigerantpipeisnotproperlyinsulated,condensationwillbeformed.
1.1. Beforeinstallation(Environment)
Caution:
• Donotusetheunitinanunusualenvironment.Iftheairconditionerisinstalled
inareasexposedtosteam,volatileoil(includingmachineoil),orsulfuricgas,
areasexposedtohighsaltcontentsuchastheseaside,theperformancecan
besignicantlyreducedandtheinternalpartscanbedamaged.
• Donotinstalltheunitwherecombustiblegasesmayleak,beproduced,ow,
oraccumulate.Ifcombustiblegasaccumulatesaroundtheunit,reorexplo-
sionmayresult.
• Donotkeepfood,plants,cagedpets,artwork,orprecisioninstrumentsinthe
directairowoftheindoorunitortooclosetotheunit,astheseitemscanbe
damagedbytemperaturechangesordrippingwater.
• When the room humidity exceeds 80% or when the drainpipe is clogged,
watermaydripfromtheindoorunit.Donotinstalltheindoorunitwheresuch
drippingcancausedamage.
• Wheninstallingtheunitinahospitalorcommunicationsofce,bepreparedfor
noiseandelectronicinterference.Inverters,homeappliances,high-frequency
medicalequipment,andradiocommunicationsequipmentcancausetheair
conditionertomalfunctionorbreakdown.Theairconditionermayalsoaffect
medicalequipment,disturbingmedicalcare,andcommunicationsequipment,
harmingthescreendisplayquality.
• Placethermalinsulationonthepipestopreventcondensation.Ifthedrain-
pipeisinstalledincorrectly,waterleakageanddamagetotheceiling,oor,
furniture,orotherpossessionsmayresult.
• Donotcleantheairconditionerunitwithwater.Electricshockmayresult.
• Tightenallarenutstospecicationusingatorquewrench.Iftightenedtoo
much,thearenutcanbreakafteranextendedperiod.
• Whenusinganyaerosolspraysforinteriorconstruction,nishingwork,or
sealingawallholeturnoffthebreakerandventilatetheroomwell.Therefriger-
antsensormayreacttothegasinthesprays,anditmaycausemisdetection.
1.3. Beforeelectricwork
Caution:
• Besuretoinstallcircuitbreakers.Ifnotinstalled,electricshockmayresult.
• Forthepowerlines,usestandardcablesofsufcientcapacity.Otherwise,a
shortcircuit,overheating,orremayresult.
• Wheninstallingthepowerlines,donotapplytensiontothecables.
• Besuretogroundtheunit.Iftheunitisnotproperlygrounded,electricshock
mayresult.
• Usecircuitbreakers(groundfaultinterrupter,isolatingswitch(+Bfuse),and
moldedcasecircuitbreaker)withthespeciedcapacity.Ifthecircuitbreaker
capacityislargerthanthespeciedcapacity,breakdownorremayresult.
1. Safety precautions
1.4. Beforestartingthetestrun
Caution:
• Turnonthemainpowerswitchmorethan12hoursbeforestartingoperation.
Startingoperationjustafterturningonthepowerswitchcanseverelydamage
theinternalparts.
• Beforestartingoperation,checkthatallpanels,guardsandotherprotective
partsarecorrectlyinstalled.Rotating,hot,orhighvoltagepartscancause
injuries.
• Donotoperatetheairconditionerwithouttheairltersetinplace.Iftheair
lterisnotinstalled,dustmayaccumulateandbreakdownmayresult.
• Donottouchanyswitchwithwethands.Electricshockmayresult.
• Donottouchtherefrigerantpipeswithbarehandsduringoperation.
• Afterstoppingoperation,besuretowaitatleastveminutesbeforeturning
offthemainpowerswitch.Otherwise,waterleakageorbreakdownmayresult.
Warning:
• Beawarethatrefrigerantsmaynotcontainanodour.
• Pipe-workshallbeprotectedfromphysicaldamage.
• Theinstallationofpipe-workshallbekepttoaminimum.
• Compliancewithnationalgasregulationsshallbeobserved.
• Keepanyrequiredventilationopeningsclearofobstruction.
• Donotuselow temperature solder alloy incaseofbrazingtherefrigerant
pipes.
• Whenperformingbrazingwork,besuretoventilatetheroomsufciently.
Makesurethattherearenohazardousorammablematerialsnearby.
When performing the work in a closed room, small room, or similar loca-
tion,makesurethattherearenorefrigerantleaksbeforeperformingthe
work.
Ifrefrigerantleaksandaccumulates,itmayigniteorpoisonousgasesmay
bereleased.
• DonotturnthebreakerOFFexceptthecaseofburningsmell,orwhenper-
formingmaintenanceorinspection.
Thepowercannotbesuppliedtotherefrigerantsensormountedinthe
indoorunit,andthesensorcannotdetecttherefrigerantleakage.Thismay
causeare.
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2. Installationlocation
2.1. Outlinedimensions(Indoorunit)(Fig.2-1)
Select a proper position allowing the following clearances for installation and main-
tenance.
(mm)
Models W D H ABCD
71,100,125,140 600 360 1900 300 Min. 100 Min. 1000 Min. 5
* Do not place any objects within 1000 mm of the air outlet.
Warning:
Mounttheindoorunitonaceilingstrongenoughtowithstandtheweightof
theunit.
Do not install the unit in the environment where any gas equipment for propane, bu-
tane or methane, sprays such as bug killer, equipment which generates smoke, and
paints and chemicals are used, or in the place where sulfur-based gas is generated.
Fig.2-1
C
D
B B
A
H
W
D
*
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3.1. Checktheindoorunitaccessories
The indoor unit is supplied with the following spare parts and accessories.
Part number
Accessory name Q’ty Setting location
1Tip-over prevention bracket 1 The top surface of
the unit.
2Tapping screws (with washer) 3
Inside the air intake
grill.
3Gas pipe insulation (large) 1
4Liquid pipe insulation (small) 1
5Band 5
6Drain socket 1
7Bushing (for the wire hole) 2
8Breaker notice, label 1
3. Installingtheindoorunit
Fig.3-2
43
6
5
7
Fig.3-1
1 2
WARNING
WARNING
8
1
2
Base
Floor hole for xing
3.2. Tip-overpreventionbracket(Fig.3-2)
To prevent the unit from tipping over attach the tip-over prevention bracket to the wall.
1Tip-over prevention bracket
ATapping screws 4 × 10 (with washer)
BThe long edge of the unit
CThe short edge of the unit
The tip-over prevention bracket 1is set on the top surface of the unit. Remove the
tapping screws 2, and then reinstall the bracket, as shown in the illustration. For the
proper installation distances, see Fig. 3-3.
DScrew
ERemove the screw Dand then pull the grill forward to remove it.
Exampleofatip-overpreventionbracket
If the wall or oor is made of a material other than wood, use a suitable device such
as a commercially available concrete anchor to hold the unit in place.
24 × 25 tapping screws
FHold the bracket in place with the tapping screws 2.
GThe bottom of the unit can be held in place by four anchor bolts which can be obtained locally.
A
B
C
1
F
G
D
E
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4. Installingtherefrigerantpiping
B
A
1910-1930
53-91
5-38 5-20
1910-1948,1963-2001
53-91
5-38
1890-1870
5-20
1890-1852,1837-1799
(mm)
Fig.3-3
Fig.3-4
3. Installingtheindoorunit
3.3. Mountingthetip-overpreventionbracket(Fig.3-3)
• Select one of the following mounting methods, depending on the height of the frieze
inside the wall above the oor.
• In the case of a light steel bed, a frieze is generally not used, so the bracket should
be mounted to one of the supports or pillars (obtain the screws locally).
• If the air outlet duct is to be attached to the unit ceiling panel, make sure that the
long edge of the bracket is placed against the wall. This will ensure that the bracket
does not cover the knockout holes in the unit ceiling panel or the screw holes for
attaching the air outlet duct.
AThe bracket faces up
BThe bracket faces down
I) The short edge of the bracket is against the wall
II) The long edge of the bracket is against the wall
• The distance between the unit and the wall can be varied.
• The vertical dimension shown is the distance from the oor to the bracket mounting
screws (the frieze center is within these limits).
• First, mount the bracket on the wall and then tighten the screw so that the bracket
can slide up and down. (Fig. 3-4)
1Tip-over prevention bracket
2Tapping screw
aFrieze
bWall surface material
cGap of about 1 mm
Floormounting
Remove the air intake grill, open the oor mounting knockout holes in the base and
x the anchor bolts to the oor.
4.1. Precautions
4.1.1. FordevicesthatuseR32/R410Arefrigerant
• Useesteroil,etheroil,alkylbenzeneoil(smallamount)astherefrigeration
oilappliedtothearedsections.
• UseC1220copperphosphorus,forcopperandcopperalloyseamlesspipes,
toconnecttherefrigerantpipes.Userefrigerantpipeswiththethicknesses
speciedinthetabletothebelow.Makesuretheinsidesofthepipesareclean
anddonotcontainanyharmfulcontaminantssuchassulfuriccompounds,
oxidants,debris,ordust.
Warning:
When installing or relocating, or servicing the air conditioner, use only the
speciedrefrigerant(writtenonoutdoorunit)tochargetherefrigerantlines.Do
notmixitwithanyotherrefrigerantanddonotallowairtoremaininthelines.
Ifairismixedwiththerefrigerant,thenitcanbethecauseofabnormalhighpres-
sureintherefrigerantline,andmayresultinanexplosionandotherhazards.
Theuseofanyrefrigerantotherthanthatspeciedforthesystemwillcause
mechanicalfailureorsystemmalfunctionorunitbreakdown.Intheworstcase,
thiscouldleadtoaseriousimpedimenttosecuringproductsafety.
Liquid pipe ø9.52 thickness 0.8 mm
Gas pipe ø15.88 thickness 1.0 mm
• Donotusepipesthinnerthanthosespeciedabove.
1 mm
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4.2. Indoorunit(Fig.4-1)
• 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 insula-
tion 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 tightening
are nut.
• Use two wrenches to tighten piping connections.
• Use leak detector or soapy water to check for gas leaks after connections are
completed.
• Use refrigerant piping insulation provided to insulate indoor unit connections. Insulate
carefully following shown below.
• Use correct are nuts meeting the pipe size of the outdoor unit.
• After connecting the refrigerant piping to the indoor unit, be sure to test the pipe
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
• Use ared nut installed to this indoor unit.
• In case of reconnecting the refrigerant pipes after detaching, make the ared part
of pipe re-fabricated.
• Apply refrigerating machine oil over the entire are seat surface.
Do not apply refrigerating machine oil to the screw portions.
(This will make the are nuts more apt to loosen.)
Availablepipesize
Liquid side ø9.52
Gas side ø15.88
Warning:
Wheninstallingtheunit,securelyconnecttherefrigerantpipesbeforestarting
thecompressor.
50
260
70
261
115
66
a
b
d
20
277
218
254
140
590
480
761
714 123
110
120
201 77
99
600
20 105
47
461
95
22
120
j
i
k
h
f
g
l
c
e
(mm)
Fig.4-3
Apply refrigerating machine oil over the entire are seat surface.
Be sure to only use the are nuts that
came with the unit.
A Flare cutting dimensions
Copper pipe O.D.
(mm)
Flare dimensions
øA dimensions (mm)
ø9.52 12.8 - 13.2
ø15.88 19.3 - 19.7
B Flare nut tightening torque
Copper pipe O.D.
(mm)
Flare nut O.D.
(mm)
Tightening torque
(N·m)
ø9.52 22 34 - 42
ø15.88 29 68 - 82
ADie
BCopper pipe
A
Fig.4-2
Fig.4-1
Copper pipe O.D.
(mm)
A (mm)
Flare tool for R32/R410A
Clutch type
ø9.52 (3/8") 0 - 0.5
ø15.88 (5/8") 0 - 0.5
4. Installingtherefrigerantpiping
R0.4 - R0.8
90° ±0.5°
45° ±2°
4.3. Refrigerantanddrainagepipelocations(Fig.4-3)
Where knockout holes are indicated, use a saw blade to cut along the groove.
Do not cut the hole larger than the indicated groove.
aRear surface
bFront surface
cKnockout hole for mounting: 4-10 mm diameter hole
d* knockout hole for connections under the unit
e120 ×120 knockout hole for connections under the unit
fIndoor/outdoor unit connecting terminals
gPower supply terminals
hElectrical equipment box
iLiquid pipe
jGas pipe
kDrain pipe outlet diameter ø26 <PVC pipe VP20 connection>
l140 ×80
Knockout hole for refrigerant and drainage piping and electrical wiring
m90 ×60
Knockout hole for refrigerant and drainage piping
n 27 mm diameter knockout hole for electrical wiring (there is a similar hole on the left side)
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5. Drainagepipingwork
5.1. DrainagePipingWork(Fig.5-1)
• Install the drain pipe so that it slopes downward (1/100 or more).
• Use VP20 (O.D. ø26 PVC TUBE) for the drain pipes.
• The drain hose can be cut with a knife to match on-site requirements.
• When connecting to the VP20, use the accessory drain socket b. Securely fasten
the socket to the pipe with vinyl chloride type adhesive so that it doesn’t leak.
• Do not insert the drain pipe directly into a location where sulfur-containing gas is
likely to be generated (i.e. a sewer).
• Make sure that no water leaks from the drain pipe joint.
• If the drain pipe passes through an indoor area, wrap commercially available insula-
tion (polyethylene foam of specic gravity 0.03 with a thickness of 9 mm or more)
around it and cover the surface with tape. This will prevent air from entering and
condensation from forming.
5.2. Drainagecheck(Fig.5-2)
• After installing the pipes, make sure that the waste water is being drained out
properly and that water is not leaking from the joints (also perform these checks if
installation is done during the heating season).
• Insert a water supply pump from the right side of the air outow port and pump
about 1L of water into the unit.
* Pump gently, toward the heat exchanger side plate or the unit inside wall.
* Always pump from the right side of the air outow port.
* If the unit has a heater, the heater will be attached to the front surface of the heat
exchanger, make sure that water does not get onto the heater.
c
a
b
d
e
Fig.5-1
aDrain hose
bDrain socket
c Drain pipe VP20 (obtain locally)
Fig.5-2
aHeat exchanger
bSide plate
cWater
dInside wall
eDrain pan
4. Installingtherefrigerantpiping
g
c
d
b
f
e
c
a
Fig.4-4
Fig.4-5
aLiquid pipe
bGas pipe
cFrame
dSquare hole
ePass the band through the square hole in the
frame to hold the refrigerant pipes in place.
1Gas pipe insulation
2Liquid pipe insulation
3Band
Refrigerantpipingconnection(Fig.4-4)
1. Remove the screw from the air intake grill handle and then remove the air intake
grill by pulling it up and forward.
2. Remove the tapping screw that holds the pipe support in place and then remove
the pipe support.
3. Remove the cushions.
• Be sure to remove the three cushions from the fan before operating the indoor
unit.
• After nishing this work, always reassemble the unit.
• When reassembling, hook the air intake grill hangers conto the holes in the sides
of the panels.
aAir intake grill
bPipe support
cHanger
dSide panel
eScrew
f4 ×10 tapping screw
gCushion
Insulate are joints 1and 2of the gas and refrigerant pipes completely. If any part
of the joints are exposed, condensation can drip down. (Fig. 4-5)
• Fasten the gas pipe insulation 1and the liquid pipe insulation 2at both ends so
that they will not slip and align with one another.
• After the insulation is installed, use a band 3to fasten the refrigerant pipe to the
frame (below the pipe joint section). This will prevent the refrigerant pipe from lifting
up off of the frame.
(When the refrigerant pipe is off of the frame, the grille cannot be installed.)
• After connecting the refrigerant piping to the indoor unit, be sure to test the pipe
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
Conduct the airtightness test before connecting the outdoor unit stop valve and the
refrigerant pipe.
If the test is conducted after the valve and pipe are connected, gas, which is used
for checking the airtightness, will leak from the stop valve and ow into the outdoor
unit, resulting in abnormal operation.
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6.1. Electricwiring(Fig.6-1)
1. Remove the tapping screws aand then remove the electrical equipment cover
b.
2. Connect the electric wires securely to the corresponding terminals.
3. Fasten the wires dwith the bands c.
• Always ground the wiring (the ground wire diameter must be 1.6 mm or more).
• If the wires contact the pipes, condensation may drip onto them. Make sure that
the wires are properly routed.
• Fasten the power source wiring to the control box using the buffer bushing for tensile
force (PG connection or the like)
• After nishing this work, always reassemble the unit.
• For instructions on how to reinstall the air intake grill, see page 7.
Warning:
Neversplicethepowercableortheindoor-outdoorconnectioncable,otherwise
itmayresultinasmoke,areorcommunicationfailure.
Wiring circuit breaker and isolating switch (B) must be always ON
except when being cleaned or checked. (When R32 is used)
Hang the attached label 8or attach the sticker, and explain it to
customers.
When the wiring circuit breaker or isolating switch (B) is OFF, the
refrigerant sensor will not detect refrigerant leakage because elec-
tricity is not supplied.
Note: If the power supplies of indoor unit and outdoor unit are sepa-
rated, hang the attached label 8on the wiring circuit breaker
or isolating switch, or attach the sticker, and explain it to cus-
tomers.
Caution:
BecarefulaboutthefanrotationwhenthebreakerisON.
Whentherefrigerantsensordetectstherefrigerantleakage,thefanstarts
rotatingautomatically.
Thismaycauseinjury.
6. Electricalwork
e
d
c
b
a
f
Fig.6-1
6.1.1. Indoorunitpowersuppliedfromoutdoorunit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
a4 ×10 tapping screws dTerminal block for indoor and outdoor units connector.
bElectrical equipment cover eGrounding cable connector
cWiring bands f Bushing (for the wire hole)
ACB
* Afx a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
AOutdoor unit power supply
BEarth leakage breaker
CWiring circuit breaker or isolating switch
DOutdoor unit
EIndoor unit/outdoor unit connecting cords
FController
GIndoor unit
* Afx a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
AOutdoor unit power supply
BEarth leakage breaker
CWiring circuit breaker or isolating switch
DOutdoor unit
EIndoor unit/outdoor unit connecting cords
FController
GIndoor unit
H Indoor unit earth
1:1System
Simultaneoustwin/triple/quadruplesystem
WARNING
H
H
H
F
AC
B
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S1
S2
S3
L
N
CN01
S1
S2
S3
L
N
CN01
Indoor unit specications
Indoor power supply terminal kit (option) Required
Indoor unit electrical box connector con-
nection change Required
Label afxed near each wiring diagram
for the indoor and outdoor units Required
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
6. Electricalwork
6.1.2. Separateindoorunit/outdoorunitpowersupplies(ForPUHZapplicationonly)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
* The optional wiring replacement kit is required.
S1
S2
L
N
L
N
S1
S2
S3
S3
ACB JC
B
* Afx a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
AOutdoor unit power supply
BEarth leakage breaker
CWiring circuit breaker or isolating switch
DOutdoor unit
EIndoor unit/outdoor unit connecting cords
FController
GIndoor unit
HOption
JIndoor unit power supply
* The optional wiring replacement kits are required.
If the indoor and outdoor units have separate power supplies, refer to the table at the
below. If the optional wiring replacement kit is used, change the indoor unit electrical
box wiring refering to the gure in the right and the DIP switch settings of the outdoor
unit control board.
* Afx a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
AOutdoor unit power supply
BEarth leakage breaker
CWiring circuit breaker or isolating switch
DOutdoor unit
EIndoor unit/outdoor unit connecting cords
FController
GIndoor unit
HOption
JIndoor unit power supply
KIndoor unit earth
ON
OFF 1 2 (SW8)
3
Electric heater
(For models with
heater)
Connectors (connections when shipped
from the factory are for indoor unit power
supplied from outdoor unit)
Indoor unit power supplied from outdoor unit
(when shipped from factory)
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
gure.
Connectors
Indoor unit
control board
Separate indoor unit/outdoor unit power
supplies
Electric heater
(For models with
heater)
Indoor unit
control board
* There are three types of labels (labels A, B, and C). Afx the appropriate labels to
the units according to the wiring method.
Simultaneoustwin/triple/quadruplesystem
1:1System
*1. <For 25-140 outdoor unit application>
Max. 45 m
If 2.5 mm2used, Max. 50 m
If 2.5 mm2used and S3 separated, Max. 80 m
<For 200/250 outdoor unit application>
Max. 18 m
If 2.5 mm2used, Max. 30 m
If 4 mm2used and S3 separated, Max. 50 m
If 6 mm2used and S3 separated, Max. 80 m
*2. The gures are NOT always against the ground.
S3 terminal has 24 VDC / 28 VDC against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
*3. It depends on the outdoor unit.
Notes: 1. Wiringsizemustcomplywiththeapplicablelocalandnationalcode.
2. Powersupplycordsandindoorunit/outdoorunitconnectingcordsshallnotbelighterthanpolychloroprenesheathedexiblecord.(Design60245IEC
57)
3. Installanearthlongerthanothercables.
Wiring
Wire No. ×
size
(mm2)
Indoor unit-Outdoor unit *1 3 × 1.5 (polar)
Indoor unit-Outdoor unit earth *1 1 ×Min. 1.5
Indoor unit earth 1 ×Min. 1.5
Circuit
rating
Indoor unit (Heater) L-N *2 –
Indoor unit-Outdoor unit S1-S2 *2 230 VAC
Indoor unit-Outdoor unit S2-S3 *2 *3 24 VDC / 28 VDC
BLACK
CN01
BLUE
BLUE
YELLOW
YELLOW
BLUE
YELLOW
BLUE
YELLOW
BLACK
CN01
H
HHH
K
KKK
ACB JC
B
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6. Electricalwork
*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. 120 m
*3. The gures are NOT always against the ground.
*4. It depends on the outdoor unit.
Notes: 1. Wiringsizemustcomplywiththeapplicablelocalandnationalcode.
2. Powersupplycordsandindoorunit/outdoorunitconnectingcordsshallnotbelighterthanpolychloroprenesheathedexiblecord.(Design60245IEC
57)
3. Installanearthlongerthanothercables.
Indoor unit power supply ~/N (single), 50 Hz, 230 V
Indoor unit input capacity
Main switch (Breaker) *1 16 A
Wiring
Wire No. ×size
(mm2)
Indoor unit power supply 2 ×Min. 1.5
Indoor unit power supply earth 1 ×Min. 1.5
Indoor unit-Outdoor unit *2 2 ×Min. 0.3
Indoor unit-Outdoor unit earth –
Circuit
rating
Indoor unit L-N *3 230 VAC
Indoor unit-Outdoor unit S1-S2 *3 –
Indoor unit-Outdoor unit S2-S3 *3 *4 24 VDC / 28 VDC
6.2. Functionsetting
6.2.1. Functionsettingontheunit
1ON/OFFbutton
Use to turn ON/OFF the indoor unit.
2Functionbuttons
Use to select the operation mode or to set the temperature and fan speed on the
Main display. Use to select items on other screens.
3MENUbutton
Use to bring up the Main menu.
4RETURNbutton
Use to return to the previous screen.
5SELECTbutton
Use to jump to the setting screen or to save the settings.
6Operationindicator
Stays lit during normal operation. Blinks during startup and when an error occurs.
7BacklitLCD
Dot display. When the backlight is off, pressing any button turns the backlight on
and it will stay lit for a certain period of time depending on the screen. Performing
any button operation keeps the backlight on.
Pressing the MENU button will bring up the Main menu as shown below.
Operation menu *1
Timer menu *1
Energy saving menu *1
Initial setting menu *2*3
Maintenance menu *1
Service menu *2*3
*1 Refer to the operation manual for details.
*2 Explained in this manual.
*3 If no buttons are pressed for 10 minutes on the initial setting screens, or 2
hours on the service screens (10 minutes on some screens), the screen will
automatically return to the Main display. Any settings that have not been
saved will be lost.
Refer to the indoor unit operation manual for information that is not included in
this manual.
4RETURN button
3MENU button
5SELECT button
7Backlit LCD
1ON/OFF button
2Function buttons
F1, F2, F3, and F4
from the left
6Operation indicator
Note:
When the backlight is off, pressing any button turns the backlight on and does not
perform its function. (except for the ON/OFF button)
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Normal start up (indicating the percentage of process completion)
Cursor
Main display in the Full mode
(while the unit is not in operation)
ButtonoperationsontheMainmenu
Main display in the Full mode
(while the unit is in operation)
■Turningonthepower
(1) When the power is turned on, the following screen will appear.
(2) Main display
After the successful startup, the Main display will appear. The Main display can be
displayed in two different modes: “Full” and “Basic.” Refer to section “Initial setting”
for how to select the display mode. (The factory setting is “Full.”)
Note:
When the power is on for the rst time, the Language selection screen will be
displayed. Refer to section (5) under “Display setting menu”.
Select a desired language. The system will not start-up without language selection.
6. Electricalwork
Please Wait
10%
Fri
PM
Cool Room
AutoSet temp.
Mode Temp. Fan
Fri
PM
Note:
Refer to the operation manual for the icons on the display.
Note:
The initial administrator password is “0000.” Refer to section (4)
“Administrator password setting” for how to change the password.
From the Main display, select Main menu>Initial setting, and make the controller
settings on the screen that appears.
Basic setting menu
• Main/Sub
• Clock
• Daylight saving time
• Administrator password
Display setting menu
• Main display
• Remote controller display details setting
• Contrast•Brightness
• Language selection
Operation setting menu
• Auto mode
Wi-Fi interface setting
Main menu:
Cursor
Initial setting menu
Basic setting
Display setting
Operation setting
Wi-Fi interface setting
Note:
Administratorpasswordisrequired.
■Initialsetting(Controllersettings)
Main Main menu
Operation Move the cursor to the desired function with the F2 and
F3 buttons, and press the SELECT button to go to the
next page. Password may be required.
Button function guide will appear at the bottom of the
screens.
F1 F2 F3 F4
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6. Electricalwork
Basicsettingmenu
(1) Main/Sub setting
When connecting two remote controllers, one of them needs to be designated as
a sub controller.
[Button operation]
1When the F3 or F4 button is pressed, the currently selected setting will appear
highlighted. Select “Sub”, and press the SELECT button to save the change.
2Press the MENU button to return to the Main menu screen. (This button always
brings up the Main menu screen.)
Note:
Clock setting is necessary for time display, weekly timer, timer setting and error
history. Make sure to perform clock setting when the unit is used for the rst time
or has not used for a long time.
Note:
The clock time is not corrected automatically.
Correct it by yourself periodically.
(3) Daylight saving time
The start/end time for daylight saving time can be set. The daylight saving time func-
tion will be activated based on the setting contents.
• If a given system has a system controller, disable this setting to keep the correct
time.
• At the beginning and the end of daylight saving time, the timer may go into
action twice or not at all.
• This function will not work unless the clock has been set.
[Button operation]
1The daylight saving time function can be activated/deactivated or the start/end
times can be set by using the F1 through F4 buttons.
• DST
Select “Yes” to activate the daylight saving time, or select “No” to deactivate.
• Date(Start)*
Set the start day of the week, week number, and month for daylight saving time.
• Start time
Set the start time for daylight saving time.
• Forward to
Set the time when the clock is to be set forward to at the start time above.
• Date(End) (2nd page)*
Set the end day of the week, week number, and month for daylight saving time.
• End time (2nd page)
Set the end time for daylight saving time.
• Backward to (2nd page)
Set the time when the clock is to be set backward to at the end time above.
2Press the SELECT button to save the setting.
* If “5th” is selected for the week number and the 5th week does not exist in the selected
month of the year, the setting is considered to be “4th.”
(2) Clock setting
[Button operation]
1Move the cursor with the F1 or F2 button to the desired item.
2Change the date and time with the F3 or F4 button, and press the SELECT but-
ton to save the change. The change will be reected on the clock display on the
Status display and the Main display
Main/Sub
Main / Sub
Select:
Cursor
Clock
Select:
Cursor
/ 01/ 01
AM
12: 00
yyyy/
mm
/ dd hh:
mm
2021
No / Yes
Day/ Week/ Month
Sun
/
5th
/
Mar
AM
1:00
AM
2:00
Cursor
Select:
DST
Date(Start)
Start time
Forward to
Daylight saving time
Cursor
Select:
Date(End)
End time
Backward to
Daylight saving time
Day/ Week/ Month
Sun/ 5th / Mar
AM
1:00
AM
2:00
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6. Electricalwork
(4) Administrator password setting
[Button operation]
1A window to enter a new password will appear. Enter a new password, and press
the SELECT button.
2 Press the F4 button (OK) on the password change conrmation screen to save
the change. Press the F3 button (Cancel) to cancel the change.
(3) Controller display details setting
Make the settings for the controller-related items as necessary.
Press the SELECT button to save the changes.
(2) Black and white inversion setting
Move the cursor to “B&W inversion” and use the F3 or F4 button to select the display
mode “Yes” or “No.” (The factory setting is “No.”) Selecting “Yes” will invert the colors
of the display, turning white background to black and black characters to white as
shown at left.
Displaysettingmenu
(1) Main display setting
[Button operation]
Move the cursor to “Full/Basic,” and use the F3 or F4 button to select the display
mode “Full” or “Basic.” (The factory setting is “Full.”)
Administrator password
Enter administrator password
Change administrator password.
Select:
Cursor
0000
Note:
The initial administrator password is “0000.” Change the default password as
necessary to prevent unauthorized access. Have the password available for those
who need it.
Note:
If you forget your administrator password, you can initialize the password to the
default password “0000” by pressing and holding the F1 button for ten seconds on
the administrator password setting screen.
Note:
The administrator password is required to make the settings for the following items.
• Timer setting · Weekly timer setting · Energy-save setting
• Outdoor unit silent mode setting · Restriction setting
• Night setback setting · Initial setting
Refer to the indoor unit operation manual for information about how to make the
settings.
Mode FanTemp.
Room
Cool Set temp. Auto
Fri
Cool
Mode FanTemp.
Set temp. Auto
Fri
Main display
Cursor Cursor
Select:
Full /Basic
B&W
inversion Yes / No
Fri
Cool
Room
AutoSet temp.
Mode Temp. Fan
Yes AM12:00
°C/°F/1°C
Yes / No
Yes / No
30 sec
Select:
Clock
Temperature
Room temp.
Auto mode
Backlight
Clock display
Cursor
Change
Full mode (Example) Basic mode (Example)
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[1] Clock display
[Button operation]
1Select “Clock” from the display details setting screen, and press the F4 button
(Change) to bring up the clock display setting screen.
2 Use the F1 through F4 buttons to select “Yes” (display) or “No” (nondisplay) and
its format for the Status display and the Main display.
3 Save the settings with the SELECT button. (The factory settings are “Yes” (display)
and “12 h” format.)
Clock display:
Yes (Time is displayed on the Status display and the Main display.)
No (Time is not displayed on the Status display and the Main display.)
Display format:
24-hour format
12-hour format
AM/PM display (Effective when the display format is 12-hour):
AM/PM before the time
AM/PM after the time
Clock display
Clock
12h disp.
AM/PM disp.
Select:
CursorCursor
Yes /No
12h/24h
AM12:00/ 12:00AM
6. Electricalwork
[2] Temperature unit setting
[Button operation]
Move the cursor to “Temperature” from the display details setting screen, and select
the desired temperature unit with the F3 or F4 button. (The factory setting is Cen-
tigrade (ºC).)
• ºC: Temperature is displayed in Centigrade. Temperature is displayed in 0.5- or
1-degree increments, depending on the model of indoor units.
• ºF: Temperature is displayed in Fahrenheit.
• 1 ºC: Temperature is displayed in Centigrade in 1-degree increments.
[3] Room temperature display
[Button operation]
Move the cursor to “Room temp.” on the display details setting screen, and select the
desired setting with the F3 or F4 button.
(The factory setting is “Yes”.)
• Yes: Room temperature appears on the Main display.
• No: Room temperature does not appear on the Main display.
Note:
Even when “Yes” is set, the room temperature is not displayed on the Main display
in the “Basic” mode.
[4] Auto (single set point) mode display setting
[Button operation]
Move the cursor to “Auto mode” from the display details setting screen, and select the
desired mode with the F3 or F4 button. (The factory setting is “Yes.”)
• Yes: “Auto Cool” or “Auto Heat” is displayed during operation in the Auto (single set
point) mode.
• No: Only “Auto” is displayed during operation in the Auto (single set point) mode.
[5] Backlight
The backlight lighting-up time can be set.
[Button operation]
Move the cursor to “Backlight” from the display details setting screen, and select
the desired time (5/10/20/30/60 seconds) with the F4 button. (The factory setting is
“30” seconds.)
Note:
Time display format will also be reected on the timer and schedule setting display.
The time is displayed as shown below.
12-hour format: AM12:00 ~ AM1:00 ~ PM12:00 ~ PM1:00 ~ PM11:59
24-hour format: 0:00 ~ 1:00 ~ 12:00 ~ 13:00 ~ 23:59
(4) Contrast•Brightness
[Button operation]
Select the desired brightness for the controller LCD with the F1 and F2 buttons.
Adjust the contrast with the F3 or F4 button. The current level is indicated with a
triangle.
[6] LED lighting
The LED lighting can be set to either “Yes” (On) or “No” (Off). (The factory setting
is “Yes”.)
When “No” is selected, the LED will not light up even during the normal operation.
Note:
Adjust the contrast and brightness to improve viewing in different lighting conditions
or installation locations. This setting can not improve viewing from all directions.
Note:
This setting is effective on the Status display and the Main display.
Display details 1/2
Clock
Temperature
Room temp.
Auto mode
Backlight
Select:
CursorCursor
Yes AM12:00
°C/°F/1°C
Yes /No
Yes /No
30sec
Yes / No
Select:
LED lighting
Display details
Cursor Cursor
Contrast•Brightness
Brightness
Lo/Mid/Hi
Light Dark
Low High Light Dark
Main menu:
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6. Electricalwork
Language selection
Cursor Cursor
Select:
English
Español
Português
Türkçe
Français
Italiano
Ελληνικά
Svenska
Operationsettingmenu
(1) Auto mode setting
[Button operation]
Whether or not to use the Auto (single set point) or Auto (dual set points) mode can
be selected by using the F3 or F4 button. This setting is valid only when indoor units
with the Auto mode function are connected. (The factory setting is “Yes”.)
Press the SELECT button to save the changes made.
• Yes: The Auto mode can be selected in the operation mode setting.
• No: The Auto mode cannot be selected in the operation mode setting.
(5) Language selection
[Button operation]
Move the cursor to the language you desire with the F1 through F4 buttons.
Press the SELECT button to save the setting.
Auto mode
Auto mode Yes / No
Select:
Cursor
Wi-Fiinterfacesetting
This setting needs to be made only when connecting a separately sold Wi-Fi interface.
(1) Router connection
[Button operation]
1Press the F1 or F2 button to select “Ref. address” then “Function.”
Press the F3 or F4 button to select the desired settings.
• Ref. address: 0 to 15
• Function: Router (WPS)/Router (AP)
2Press the SELECT button. “Connecting…” will appear.
• Router (WPS): Press the WPS button on the Wi-Fi router within 2 minutes.
• Router (AP): Make the network settings by referring to the manual for the cloud
service within ten minutes.
When router connection has been established, “Completed” will appear. If a mes-
sage other than “Completed” appears, check the connection, and start over from
Step 1, or refer to the Wi-Fi interface manual.
Select “Request code” from the Check menu to display or set the following items.
Function Request
code
Send results
Displays the Wi-Fi interface
status
504 00: Not connected. The interface
has been reset. The interface
has been reset to the factory
settings.
01: WPS mode
02:
AP mode
03: Connecting...
Resets the Wi-Fi interface 505 “Communication completed” will
appear when the interface has been
reset.
Resets the Wi-Fi interface to
the factory settings
506 “Communication completed” will
appear when the interface has been
reset.
Wi-Fi interface setting
Ref. address
Function Router WPS
Connect:
Cursor Address
Setting display:
Wi-Fi interface setting
Ref. address
Function
Completed
Router WPS
Cancel:
Wi-Fi interface setting
Ref. address
Function
Connecting···
Please start router WPS
within 2 minutes.
Router WPS
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Note:
Be sure to write down the settings for all functions if any of the initial settings has been changed after the completion of installation work.
Make the settings for the indoor unit functions via the controller as necessary.
Select “Function setting” from the Settings menu to bring up the Function setting
screen.
[Button operation]
1Set the indoor unit refrigerant addresses and unit numbers with the F1 through
F4 buttons, and then press the SELECT button to conrm the current setting.
2When data collection from the indoor units is completed, the current settings
appears highlighted. Non-highlighted items indicate that no function settings are
made. Screen appearance varies depending on the “Unit No.” setting.
3Toggle through the pages with the F3 or F4 button.
4Select the mode number with the F1 or F2 button, and then press the SELECT
button.
6When the settings are completed, press the SELECT button to send the setting
data from the remote controller to the indoor units.
7When the transmission is successfully completed, the screen will return to the
Function setting screen.
Function setting
Cursor Address
Monitor:
Ref. address
Unit No. Grp./1/2/3/4/All
Note:
Make the function settings shown in Function table as necessary.
Function setting
Ref. address
Sending data
Common items
Individual items
Function setting
Cursor Page
Ref. address
Mode 1
Mode 2
Mode 3
Mode 4
Grp.
Save:
1/8
Function setting
Request:
Ref. address
Mode 1
Mode 2
Mode 3
Mode 4
Grp.
1/8
Value
5Select the setting number with the F1 or F2 button.
Setting range for modes 1 through 28: 1 through 3
Setting range for modes 31 through 66: 1 through 15
6.2.2. Functionsettingonthecontroller
6. Electricalwork
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7.2. Testrun
The following 2 methods are available.
7.1. Beforetestrun
► Aftercompletinginstallation andthewiringandpiping oftheindoorand
outdoorunits,checkforrefrigerantleakage,loosenessinthepowersupply
orcontrolwiring,wrongpolarity,andnodisconnectionofonephaseinthe
supply.
► Usea500-voltmegohmmetertocheckthattheresistancebetweenthepower
supplyterminalsandgroundisatleast1.0MΩ.
► Donotcarryoutthistestonthecontrolwiring(lowvoltagecircuit)terminals.
Warning:
Donotusetheairconditioneriftheinsulationresistanceislessthan1.0MΩ.
Insulationresistance
7. Testrun
Functiontable
Select unit number “Grp.”
Mode Settings Mode no. Setting no.
Initial setting
setting
Power failure automatic recovery Not available 01
1
Available *1 2Ο*2
LOSSNAY connectivity Not Supported
03
1Ο
Supported (indoor unit is not equipped with outdoor-air intake) 2
Supported (indoor unit is equipped with outdoor-air intake) 3
Auto operation mode Single set point (Available 14 °C cooling setting *3) 06
1
Dual set point (Not Available 14 °C cooling setting *3) 2Ο
Smart Defrost *3 Available 20
1Ο
Not Available 2
Select unit numbers 1 to 4 or “All”
Mode Settings Mode no. Setting no.
Initial setting
setting
Filter sign 100 Hr
07
1
2500 Hr 2 Ο
No lter sign indicator 3
Fan speed Silent
08
1
Standard 2 Ο
High ceiling 3
Fan speed during the cooling thermostat is OFF Setting fan speed
27
1
Stop 2
Extra low 3 Ο
*1 When the power supply returns, the air conditioner will start 3 minutes later.
*2 Power failure automatic recovery initial setting depends on the connecting outdoor unit.
*3 It is available when the indoor unit is connected to any of the particular outdoor units.
Note:
Refer to section “Service menu” for information about the maintenance password.
7.2.2. UsingSW4inoutdoorunit
Refer to the outdoor unit installation manual.
7.2.1. Usingcontroller
Note:
Maintenancepasswordisrequired.
1At the Main display, press the Setting button and select Service>Test run>Test
run.
2Press the ON/OFF button to cancel the test run if necessary.
Note:
If the unit is operated continuously during a test run, the unit stops after 2 hours.
6. Electricalwork
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Check code Symptom Remark
P1 Intake sensor error
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
E6, E7 Indoor/outdoor unit communication error
P6 Freezing/Overheating safeguard operation
EE Communication error between indoor and outdoor units
P8 Pipe temperature error
E4 Controller signal receiving error
FL Refrigerant leakage
FH Refrigerant sensor error
PL Refrigerant circuit abnormal
FB (Fb) Indoor unit control system error (memory error, etc.)
– – No corresponding
PB (Pb) Indoor unit fan motor error
[Output pattern A] Errors detected by indoor unit
7. Testrun
• On controller
Check code displayed in the LCD.
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Note:
Operationisnotpossibleforabout30secondsaftercancellationoffunctionselection.(Correctoperation)
For description of each LED (LED 1, 2, 3) provided on the indoor controller, refer to the following table.
Check code Symptom Remark
E9 Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
For details, check the LED
display of the outdoor controller
board.
UP Compressor overcurrent interruption
U3, U4 Open/short of outdoor unit thermistors
UF Compressor overcurrent interruption (When compressor locked)
U2 Abnormal high discharging temperature/49C worked/insufcient refrigerant
U1, Ud Abnormal high pressure (63H worked)/Overheating safeguard operation
U5 Abnormal temperature of heat sink
U8 Outdoor unit fan safeguard stop
U6 Compressor overcurrent interruption/Abnormal of power module
U7 Abnormality of super heat due to low discharge temperature
U9, UH Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/
Current sensor error
FL Refrigerant leakage
FH Refrigerant sensor error
Others Other errors (Refer to the technical manual for the outdoor unit.)
• If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
LED 1 (power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is always lit.
LED 2 (power for remote controller) Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address “0”.
LED 3 (communication between indoor and outdoor units) Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
Symptom Cause
Controller LED 1, 2 (PCB in outdoor unit)
Please Wait
For about 3 min-
utes following
power-on
After LED 1, 2 are lighted, LED 2 is turned
off, then only LED 1 is lighted. (Correct
operation)
• For about 3 minutes following power-on, operation of the
controller is not possible due to system start-up. (Correct
operation)
Please Wait →Error code After about 3
minutes has
expired following
power-on
Only LED 1 is lighted. →LED 1, 2 blink.
• Connector for the outdoor unit’s protection device is not
connected.
• Reverse or open phase wiring for the outdoor unit’s power
terminal block (L1, L2, L3)
Display messages do not appear even
when operation switch is turned ON
(operation lamp does not light up).
Only LED 1 is lighted. →LED 1 blinks twice,
LED 2 blinks once.
• Incorrect wiring between indoor and outdoor units (incorrect
polarity of S1, S2, S3)
• Remote controller wire short
7.3. Errorcode
Note:
Iftheunitisoperatedcontinuouslyduringatestrun,theunitstopsafter2hours.
RG79F531H01_01en.indd 18 2021/04/28 15:24:37
019
19
en
8. Easymaintenancefunction
Note:
The initial maintenance password is “9999.” Change the default password as
necessary to prevent unauthorized access. Have the password available for those
who need it.
Note:
If you forget your maintenance password, you can initialize the password to the
default password “9999” by pressing and holding the F1 button for ten seconds on
the maintenance password setting screen.
Note:
Air conditioning units may need to be stopped to make certain settings. There may
be some settings that cannot be made when the system is centrally controlled.
At the Main display, press the Setting button and select “Service” to make the main-
tenance settings.
When the Service menu is selected, a window will appear asking for the password.
To enter the current maintenance password (4 numerical digits), move the cursor to
the digit you want to change with the F1 or F2 button, and set each number (0 through
9) with the F3 or F4 button. Then, press the SELECT button.
Note:
Maintenancepasswordisrequired.
(1) Test run
Refer to section “7. Test run”.
(2) Input maintenance information
Select “Maintenance information” from the Service menu, and press the SELECT
button.
Maintenance password
Cursor
Select:
Enter maintenance password
9999
Change maintenance password.
■Servicemenu
unemec i v r eS
rosruC
: u n emn i aM
Test run
Input maintenance info.
Settings
Check
Others
Test run menu
Cursor
Service menu:
Test run
Drain pump test run
F1 F2 F3 F4
unemec i v r eS
rosruC
: u n emn i aM
Test run
Input maintenance info.
Settings
Check
Others
F1 F2 F3 F4
Input maintenance info
Cursor
Service menu:
Collect model names and S/N
Model name input
Serial No. input
Dealer information input
lnitialize maintenance info.
1 Model name input [Button operation]
Select "Model name input" with the F1 or F2 button, and press the SELECT button.
F1 F2 F3 F4
F1 F2 F3 F4
SelecttheRef.address,OutdoorunitandIndoorunittoberegistered.
SelecttheRef.addresstoberegisteredwiththeF1andF2buttons.
“Refrigerant address” setting [0] to [15]
*Only a connected address can be selected.
PresstheSELECTbutton.
The registered model information can be copied and pasted into the refrigerant ad-
dress units.
•F3button: Copies the model information for the selected address.
•F4button: Overwrites the copied model information onto the selected address.
rosruC
Model name input
OU
IU
IU
IU
IU
Copy PasteAddress
Select Unt#:
F1 F2 F3 F4
RG79F531H01_01en.indd 19 2021/04/28 15:24:43
020
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