Mitsubishi Electric City Multy PLFY-P NFMU-E Series 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.
MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous
assurer d’une utilisation correcte.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
Air-Conditioners For Building Application
INDOOR UNIT
PLFY-P•NFMU-E
FOR INSTALLER
POUR L’INSTALLATEUR
PARA EL INSTALADOR
For use with the R410A
A utiliser avec le R410A
Para utilizar con el R410A
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►Before installing the unit, make sure you read all the “Safety precau-
tions”.
►Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
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.
Contents
Warning:
• Askthedealeroranauthorizedtechniciantoinstalltheairconditioner.
•
The user should never attempt to repair the unit or transfer it to another location.
• Installtheunitataplacethatcanwithstanditsweight.
• Use only specified cables for wiring. The wiring connections must be made
securely with no tension applied on the terminal connections. Also, never
splice the cables for wiring (unless otherwise indicated in this document).
Failure to observe these instructions may result in overheating or a fire.
• UseonlyaccessoriesauthorizedbyMitsubishiElectricandaskthedealeror
an authorized technician to install them.
• Donottouchtheheatexchangerfins.
• InstalltheairconditioneraccordingtothisInstallationManual.
•
Have all electric work done by a licensed electrician according to local regulations.
• The appliance shall be installed in accordance with national wiring regulations.
• Ifthesupplycordisdamaged,itmustbereplacedbythemanufacturer,its
service agent or similarly qualified persons in order to avoid a hazard.
• Iftheairconditionerisinstalledinasmallroom,measuresmustbetakento
preventtherefrigerantconcentrationfromexceedingthesafetylimitevenif
the refrigerant should leak.
• Thecutfacepunchedpartsmaycauseinjurybycut,etc.Theinstallersare
requested to wear protective equipment such as gloves, etc.
• Wheninstallingorrelocating,orservicingtheairconditioner,useonlythe
specifiedrefrigerant(R410A)tochargetherefrigerantlines.Donotmixitwith
any other refrigerant and do not allow air to remain in the lines.
Ifairismixedwiththerefrigerant,thenitcanbethecauseofabnormalhighpressure
intherefrigerantline,andmayresultinanexplosionandotherhazards.
The use of any refrigerant other than that specified for the system will cause
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
1. Safety precautions..................................................................................... 2
2. Installing the indoor unit ............................................................................2
3. Refrigerant pipe and drain pipe .................................................................5
4. Electrical work ...........................................................................................6
5. Installing the grille.................................................................................... 13
6. Test run.................................................................................................... 17
1. Safety precautions
: Indicates an action that must be avoided.
: Indicates that important instructions must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts.
: Indicates that the main switch must be turned off before servicing.
: Beware of electric shock.
: Beware of hot surface.
: At servicing, please shut down the power supply for both the Indoor and
Outdoor Unit.
Warning:
Carefullyreadthelabelsaffixedtothemainunit.
Install the indoor unit at least 2.4 m (8 ft) above floor or grade level.
For appliances not accessible to the general public.
Caution:
• Donotusetheexistingrefrigerantpiping.
• Useesteroil,eitheroiloralkylbenzene(smallamount)astherefrigeratoroil
to coat flares and flange connections.
• Donotusetheairconditionerwherefood,pets,plants,precisioninstruments,
or artwork are kept.
• Donotusetheairconditionerinspecialenvironments.
• Groundtheunit.
• Installanleakcircuitbreaker,asrequired.
• Usepowerlinecablesofsufficientcurrentcarryingcapacityandrating.
• Useonlyacircuitbreakerandfuseofthespecifiedcapacity.
• Donottouchtheswitcheswithwetfingers.
• Donottouchtherefrigerantpipesduringandimmediatelyafteroperation.
• Donotoperatetheairconditionerwiththepanelsandguardsremoved.
• Donotturnoffthepowerimmediatelyafterstoppingoperation.
• Iftheunitisrunforlonghourswhentheairabovetheceilingisathightem-
perature/high humidity (dew point above 26 °C, 79 °F), dew condensation may
be produced in the indoor unit or the ceiling materials. When operating the
units in this condition, add insulation material (10 to 20 mm, 13/32 to 15/32
inch) to the entire surface of the unit and ceiling materials to avoid dew con-
densation.
2. Installing the indoor unit
2.1. Check the indoor unit accessories (Fig. 2-1)
The indoor unit should be supplied with the following accessories.
Accessory name Q’ty
1Installation template 1
2Washers (with insulation)
Washers (without insulation)
4
4
3
Pipe cover (for refrigerant piping joint)
small diameter (liquid)
large diameter (gas)
1
1
4
Band (large)
Band (middle)
Band (small) * Use only one.
6
2
2
5Drain socket 1
6Insulation 1
Fig. 2-1
1 2
3 4
5 6
Note:
The phrase “Wired remote controller” in this installation manual refers to the PAR-32MAA.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in these
boxes.
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2.2. Ceiling openings and suspension bolt installation
locations (Fig. 2-2)
• Usingtheinstallationtemplateandthegauge(suppliedasanaccessorywiththe
grille), make an opening in the ceiling so that the main unit can be installed as shown
in the diagram. (The method for using the template and the gauge are shown.)
* Before using, check the dimensions of template and gauge, because they
change due to fluctuations of temperature and humidity.
* The dimensions of ceiling opening can be regulated within the range shown
in following diagram; so center the main unit against the opening of ceiling,
ensuring that the respective opposite sides on all sides of the clearance between
them becomes identical.
• UseM10(3/8”)suspensionbolts.
* Suspension bolts are to be procured at the field.
• Installsecurely,ensuringthatthereisnoclearancebetweentheceilingpanel&
grille,andbetweenthemainunit&grille.
2. Installing the indoor unit
AOuter side of main unit
BBolt pitch
CCeiling opening
DOuter side of Grille
EGrille
FCeiling
GMin.500mm(20inch)(Entireperiphery)
If setting the maintenance space for G, be sure to
leaveisaminimumof700mm(28inch).
HMaintenance space
IFresh air intake
JAngle
KElectric component box
* Leave the maintenance space at the electric component box end.
*1 When installing in an existing ceiling unit location or applying additional heat insulation,
ensure a minimum space of 25 mm (1 inch).
2.3. Installation of duct (in case of fresh air intake)
(Fig. 2-3)
Caution:
Linkage of duct fan and air conditioner
ln case that a duct fan is used, be sure to make it linked with the air conditioner
when outside air is taken.
Do not run the duct fan only. It can cause dew drop.
Making a duct flange (prepared locally)
• Theshapeofductflangeshownleftisrecommended.
Installation of duct flange
• Cutoutthecutouthole.Donotknockitout.
• Installaductflangetothecutoutholeoftheindoorunitwiththree4×10mmtap-
ping screws which should be prepared locally.
Installation of duct (should be prepared locally)
• Prepareaductofwhichinnerdiameterfitsintotheouterdiameteroftheductflange.
• Incasethattheenvironmentabovetheceilingishightemperatureandhighhumid-
ity, wrap the duct in a heat insulate to avoid causing dew drop on the wall.
Remove the drain pan insulation.
ADuct flange recommended shape
 (Thickness:0.8mm(1/32inch)or more)
B3-ø5 mm(3/16inch) hole
CDetail drawing of fresh air intake
DIndoor unit
ECeiling surface
F3-Tapping screw hole
Gø73.4 mm(2-7/8inch)cutout hole
HDuct flange (Prepared locally)
I4×10mmTappingscrew(Preparedlocally)
JInsulation
Fig. 2-2
Fig. 2-3
(inch)
(22-11/16) C
J
(22-11/16)
C
I
*1
K
FEG
13/32
1-15/32
+3/16 0
(inch)
A C
HI
B
G
E
F
J
D
120°
120°
120°
60°
ø 3-15/16ø 3-15/16
ø 3-15/16
ø 2-15/16ø 2-15/16
19/32
25/32
2-3/4
5-1/2
7-5/16
1-15/32 +3/16
08-3/16
ø 3-15/16
Ductangeconnection
Floor
9/32to31/329/32to31/32
Min.18H
9/32to31/329/32to31/32
Min.3/16
Min.94-1/2
Min.18H
22-7/16A
20-21/32B
18-15/16
13-5/16
24-19/32D
22-11/16to24-1/32C
16-1/16
24-19/32
D
22-11/16to24-1/32
C
16-1/16
20-21/32B
22-7/16A
5
7-7/16
2-1/16
1-31/32to3-5/8
9-21/32
8-3/16
5-29/32
3-15/32
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2. Installing the indoor unit
ASuspension bolt (Procure locally)
BCeiling
CNut (Procure locally)
DWasher (with insulation) (Accessory)
Fig. 2-5
2.5. Unit suspension procedures (Fig. 2-5)
Suspend the main unit as shown in the diagram.
1. In advance, set the parts onto the suspension bolts in the order of the washers
(with insulation), washers (without insulation) and nuts (double).
• Fitthewasherwithcushionsothattheinsulationfacesdownward.
• Incaseofusingupperwasherstosuspendthemainunit,thelowerwashers
(with insulation) and nuts (double) are to be set later.
2. Lift the unit to the proper height of the suspension bolts to insert the mounting
plate between washers and then fasten it securely.
3. When the main unit can not be aligned against the mounting hole on the ceiling,
it is adjustable owing to a slot provided on the mounting plate. (Fig. 2-6)
• MakesurethatstepAisperformedwithin37to42mm(1-15/32to1-21/32inch).
Damage could result by failing to adhere to this range.
2.6. Confirming the position of main unit and tightening
the suspension bolts (Fig. 2-7)
• Usingthegaugeattachedtothegrille,ensurethatthebottomofthemainunitis
properly aligned with the opening of the ceiling. Be sure to confirm this, otherwise
condensation may form and drip due to air leakage etc.
• Confirmthatthemainunitishorizontallylevelled,usingaleveloravinyltubefilled
with water.
• Aftercheckingthepositionofthemainunit,tightenthenutsofthesuspensionbolts
securely to fasten the main unit.
• Theinstallationtemplatecanbeusedasaprotectivesheettopreventdustfrom
entering the main unit when the grilles are left unattached for a while or when the
ceiling materials are to be lined after installation of the unit is finished.
* As for the details of fitting, refer to the instructions given on the Installation tem-
plate.
Fig. 2-7
Fig. 2-6
EMounting plate
FWasher (without insulation) (Accessory)
GCheck using the Installation gauge
AMain unit
BCeiling
CGauge (Grille accessory)
DCeiling opening dimensions
AMain unit
BCeiling
CInstallation template (Accessory)
1-15/32+3/16
0
5
Min.1-3/16
(inch)
2.4. Suspension structure (Give site of suspension
strong structure) (Fig. 2-4)
• Theceilingworkdiffersaccordingtotheconstructionofthebuilding.Buildingcon-
structors and interior decorators should be consulted for details.
(1) Extent of ceiling removal: The ceiling must be kept completely horizontal and the
ceiling foundation (framework: wooden slats and slat holders) must be reinforced
in order to protect the ceiling from vibration.
(2) Cut and remove the ceiling foundation.
(3) Reinforce the ends of the ceiling foundation where it has been cut and add ceiling
foundation for securing the ends of the ceiling board.
(4) When installing the unit on a slanting ceiling, interlock a pillow between the ceiling
and the grille and set so that the unit is installed horizontally.
1Wooden structures
• Usetiebeams(singlestoriedhouses)orsecondfloorbeams(twostoryhouses)
as reinforcing members.
• Wooden beams for suspending air conditioners must be sturdy and their sides
mustbeatleast6cm(2-3/8inch)longifthebeamsareseparatedbynotmore
than90cm(36inch)andtheirsidesmustbeatleast9cm(3-9/16inch)longifthe
beamsareseparatedbyasmuchas180cm(71inch).Thesizeofthesuspension
boltsshouldbeø10(3/8”).(Theboltsdonotcomewiththeunit.)
2Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden hang-
ers, etc. to install the suspension bolts.
AUnit
BGrille
CPillow
DCeiling
ERafter
FBeam
GRoof beam
HUseinsertsratedat100-150kg
(220-331lbs)each(procurelocally)
ISuspensionboltsM10(3/8”)(procure
locally)
JSteel reinforcing rod
12
Fig. 2-4
*B: Suspension bolt pitch (see Fig. 2-2 Bfor details)
22-11/16to24-1/32D
A=1-15/32+3/16
0
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3. Refrigerant pipe and drain pipe
3.1. Refrigerant and drainage piping locations of indoor
unit (Fig. 3-1)
ADrain pipe
BCeiling
CGrille
DRefrigerant pipe (liquid)
ERefrigerant pipe (gas)
FMain unit
Fig. 3-1
A Flare cutting dimensions
Fig. 3-2
3.2. Connecting pipes (Fig. 3-2)
• Whencommerciallyavailablecopperpipesareused,wrap liquid and gaspipes
withcommerciallyavailableinsulationmaterials(heat-resistantto100°C,212°F
ormore,thicknessof12mm(15/32inch)ormore).
• Theindoorpartsofthedrainpipeshouldbewrappedwithpolyethylenefoaminsula-
tionmaterials(specificgravityof0.03,thicknessof9mm(11/32inch)ormore).
• Applythinlayerofrefrigerantoiltopipeandjointseatingsurfacebeforetightening
flare nut.
• Usetwowrenchestotightenpipingconnections.
• Userefrigerantpipinginsulationprovidedtoinsulateindoorunitconnections.Insulate
carefully.
Copper pipe O.D.
(mm, inch)
Flare dimensions
øA dimensions (mm, inch)
ø6.35,1/4 8.7to9.1,11/32to23/64
ø12.7,1/2 16.2to16.6,5/8to21/32
øA
90°±0.5°
45°±2°
R1/64-R1/32
Fig. 3-3
B Refrigerantpipesizes&Flarenuttighteningtorque
C Apply refrigerating machine oil over the entire flare seat surface.
3.3. Indoor unit (Fig. 3-3)
Heat insulation for refrigerant pipes:
1Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that
the end of the pipe cover touches the side of the unit.
2Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure
that the end of the pipe cover touches the side of the unit.
3Secure both ends of each pipe cover with the enclosed bands. (Attach the bands
20mm(25/32inch)fromtheendsofthepipecover.)
Make sure that the slit in the pipe cover is facing upward when it is 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.)
ARefrigerant pipe and insulating material
(Procure locally)
BPipe cover (large) (Accessory)
CPipe cover (small) (Accessory)
DRefrigerant pipe (gas)
ERefrigerant pipe (liquid)
FBand (Accessory)
GCross-sectional view of connection
HRefrigerant pipe
IInsulating material
JSqueeze
R410A Flare nut O.D.
Liquid pipe Gas pipe
Pipe size
(mm, inch)
Tightening torque
(N∙m, ft∙lbs)
Pipe size
(mm, inch)
Tightening torque
(N∙m, ft∙lbs)
Liquid pipe
(mm, inch)
Gas pipe
(mm, inch)
P05/08/12/15/18 ODø6.35,1/4 14to18,10to13 ODø12.7,1/2 49 to 61, 36 to 45 17,21/32 26,1-1/32
3-1/16(gas) 2-15/32(liquid)
AFFB
D
E
C
(inch)
1/4 7-23/32 7-23/32
7-13/32
5-1/4 2-23/32
2-17/32
A
C
E
F
DB
Warning:
When installing the unit, securely connect the refrigerant pipes before start-
ing the compressor.
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3. Refrigerant pipe and drain pipe
3.4. Drainage piping work (Fig. 3-4)
• UseVP25(O.D.ø32mm(1-1/4inch)PVCTUBE)fordrainpipingandprovide1/100
or more downward slope.
• Besuretoconnectthepipingjointsusingapolyvinyltypeadhesive.
• Observethefigureforpipingwork.
• Usetheincludeddrainhosetochangetheextractiondirection.
1Correct piping
2Wrong piping
AInsulation(9mm(11/32inch)ormore)
BDownwardslope(1/100ormore)
CSupport metal
KAir bleeder
LRaised
MOdor trap
Grouped piping
DO.D.ø32mm(1-1/4inch)PVCTUBE
EMake it as large as possible
FIndoor unit
GMake the piping size large for grouped piping.
HDownwardslope(1/100ormore)
IO.D.ø38mm(1-1/2inch)PVCTUBEforgroupedpiping.
 (9mm(11/32inch)ormoreinsulation)
JUpto850mm(33inch)
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 3-5)
(Affix the tube using PVC adhesive then secure it with a band.)
2. Installalocallypurchaseddrainpipe(PVCpipe,O.D.ø32mm(1-1/4inch)).
(Affix the pipe using PVC adhesive then secure it with a band.)
3. Insulatethetubeandpipe.(PVCpipe,O.D.ø32mm(1-1/4inch)andsocket)
4. Check that drain flows smoothly.
5. Insulate the drain port with insulating material, then secure the material with a
band. (Both insulating material and band are supplied with the unit.)
AUnit
BInsulating material
CBand (large)
DDrain port (transparent)
EInsertion margin
FMatching
GDrainpipe(O.D.ø32mm(1-1/4inch)PVCTUBE)
HInsulating material (purchased locally)
ITransparent PVC pipe
JO.D.ø32mm(1-1/4inch)PVCTUBE(Slope1/100ormore)
KBand (middle)
LDrain socket
Fig. 3-4
Fig. 3-5
(inch)
Max. 6 inch
Max. 65 ft
5 to 7 ft
1
2
4. Electrical work4. Electrical work
4.1. Indoor unit (Fig. 4-1, Fig. 4-2, Fig. 4-3)
1.Loosen the two screws securing the electric component cover, and then slide and
remove the cover.
2.Route each cable through the wiring intake into the electric component box. (Procure
power supply cable and control cable locally.)
3.Securely connect the power supply cable and control cable to the terminal
blocks.
4.Secure the wires with the cable straps inside the electric component box. Secure
the wires with cable straps as cushioning components so that no stress is applied
to the connecting sections of the terminal block when tension is generated.
5.Attach the electric component cover as it was.
• Donotallowslackeningoftheterminalscrews.
• Always install earth.
 (Earthcabledia:Thickerthan1.6mm(1/16inch))
• Fixpowersupplycableandcontrolcabletoelectriccomponentboxbyusingbuffer
bushing for tensile force. (PG connection or the like.)
• Tapeisaffixedovertheconduitholeusedforconnectingtheelectricwiring.Please
remove this tape if making a connection through the hole.
AElectric component cover
BElectric component box
CEntry for power supply cable
DEntry for remote control cable and trans-
mission cable
ECable clamp
FPower supply terminals (L1, L2)
GTransmission terminals (M1, M2, S)
HMA Remote controller terminal (1. 2)
IIndoor controller
JRemote control cable
KTransmission cable
LPower supply cable
L2L1
FL
Fig. 4-1
2-5/12inch
15/32inch
JKL
D
C
I
A
B
H
EF
GK
C
J
AA
I
J
C,K
C
F
1-3/16
D E E
L
G
H
1-3/16 1-3/16
K
B
Secure with a band 4(small) at the
location shown in the diagram
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Fig. 4-2
CN5Y
CN4Z
CN90
4. Electrical work
Caution:
• Beforeinstallingthegrille,makesurethatthejunctioncableisconnected.
• Ifthegrillehassignalreceiverori-seesensor,thepackofgrilleincludes
junction cables.
■When using the panel with wireless signal receiver or i-see sensor, install
wireless junction cable for connecting with the cable from the panel through
the following steps before installing the main unit.
Signal receiver: CN90
i-see sensor: CN5Y
i-see sensor motor: CN4Z
Warning:
• Inserthooktheelectriccomponentcoverintothebentsupportontheelectric
componentboxandattachthecoversecurely.Ifitisattachedincorrectly,it
couldresultinare,electricshockduetodust,water,etc.
• Usethespeciedindoor/outdoorunitconnectingcabletoconnecttheindoor
andoutdoorunitsandxthecabletotheterminalblocksecurelysothatno
stress is applied to the connecting section of the terminal block. Incomplete
connectionorxingofthecablecouldresultinare.
19/32
Fig. 4-3
Fig. 4-4
Fig. 4-5
Be sure to connect the remote
controllercable(0.3mm,AWG
22) to the locations shown in the
diagram. Securetheremotecontrolcable/
indoor-outdoor connection cable
with the cable strap.
Cable strap
15/32
(inch)
B
C
4.1.1. Installing the i-See sensor and signal receiver
Before installing the grille, connect the junction wires included with the grille acces-
sories and place them in the connector box.
1Remove the two screws securing the wire cover of the main unit, and then open
the cover.
2Route the wires of the i-See sensor and signal receiver through the wire inlets in
the electric component box as shown in the diagram and around the bushings on
the side of the main unit. (Fig. 4-4)
When routing the wires, open the clamp securing the grille junction wire, and then
secure the grille junction wire and the wires of the i-See sensor and signal receiver
with the clamp.
3Remove the one screw securing the connector box cover, and then open the cover.
(Fig. 4-5)
4Place the junction wire connector in the connector box.
5Install the wire cover and connector box cover.
Caution:
When installing the covers, make sure that the wires do not get pinched.
Fitthebandsecuringthejunctionwiresbetweentheribsontheconnectorbox
as shown in the diagram. (Fig. 4-6)
AWire cover
BConnector box cover
CConnector box
DI-See sensor or signal receiver lead wire (Grille accessory)
EBand
Fig. 4-6
D
E
Between ribs
A
D
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4. Electrical work
Indoor unit V1 V2
Type 1 PLFY-NEMU, PMFY-NBMU, PEFY-NMSU,
PCFY-NKMU, PKFY-NHMU, PKFY-NKMU, PLFY-NFMU 19.8 2.4
Type 2 PEFY-NMAU 38 1.6
Type 3 PEFY-NMHSU 13.8 4.8
Others Other indoor unit 0 0
C:Multipleoftrippingcurrentattrippingtime0.01s
Please pick up “C” from the tripping characteristic of the breaker.
<Example of “F2” calculation>
•ConditionPEFY-NMSU×4+PEFY-NMAU×1,C=8(refertorightsamplechart)
 F2=19.8×4/8+38×1/8
= 14.65
  →16Abreaker(Trippingcurrent=8×16Aat0.01s)
*3 Current sensitivity is calculated using the following formula.
G1=V2×(QuantityofType1)+V2×(QuantityofType2)+V2×(QuantityofType3)+V2×(QuantityofOthers)
+V3×(Wirelength[km])
G1 Current sensitivity
30orless 30mA0.1secorless
100orless 100mA0.1secorless
Wire thickness V3
1.5 mm2, AWG14 48
2.5 mm2, AWG13 56
4.0mm2, AWG11 66
4.2. Power supply wiring
• Wiringsizemustcomplywiththeapplicablelocalandnationalcodes.
• Powersupplycableofapplianceshallnotbelighterthandesign245IEC53or227
IEC57, 245 IEC 53 or 227 IEC 53.
• Installanearthlinelongerthanothercables.
• A switch with at least 3 mm, 1/8 inch contact separation in each pole shall be
provided by the air conditioner installation.
[Fig. 4-7]
A
Ground-fault interrupter
B
Localswitch/Wiringbreaker
C
Indoor unit
D
Pull box
Warning:
Fig. 4-7
C C C CC
A B D
~208/230V
D
C
TB2 TB5 TB15
S 1 2
M1 M2 L1 L2
A B
~208/230V
Total operating current of the indoor
unit
Minimum wire thickness (mm², AWG.No)
Ground-fault interrupter *1
Local switch (A) Breaker for wiring
(NFB)
Main cable Branch Ground Capacity Fuse
F0=16Aorless*2 1.5, AWG14 1.5, AWG14 1.5, AWG14 20Acurrentsensitivity*3 16 16 20
F0=25Aorless*2 2.5, AWG13 2.5, AWG13 2.5, AWG13 30Acurrentsensitivity*3 25 25 30
F0=32Aorless*2 4.0,AWG11 4.0,AWG11 4.0,AWG11 40Acurrentsensitivity*3 32 32 40
ApplytoIEC61000-3-3aboutmax.permissivesystemimpedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2PleasetakethelargerofF1orF2asthevalueforF0.
F1=Totaloperatingmaximumcurrentoftheindoorunits×1.2
F2={V1×(QuantityofType1)/C}+{V1×(QuantityofType2)/C}+{V1×(QuantityofType3)/C}+{V1×(QuantityofOthers)/C}
6000
600
60
10
1
1 2 3 4 6 8
C
10 20
SAMPLE
Sample chart
TrippingTime[s]
0.1
0.01
Rated Tripping current (x)
Never splice the power cable or the indoor-outdoor connection cable,
otherwise it may result in a smoke, a fire or communication failure.
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4. Electrical work
4.3. Types of control cables
1. Wiring transmission cables
Types of transmission cable Shielding wire CVVS or CPEVS
Cable diameter More than 1.25 mm2 (AWG16)
Length Lessthan200m(656ft)
Fig. 4-8
4.4. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-8)
• ConnectindoorunitTB5andoutdoorunitTB3.(Non-polarized2-wire)The“S”on
indoor unit TB5 is a shielding wire connection. For specifications about the con-
necting cables, refer to the outdoor unit installation manual.
• Installaremotecontrollerfollowingthemanualsuppliedwiththeremotecontroller.
• Connecttheremotecontroller’stransmissioncablewithin10m(33 ft) usinga0.75mm2
(AWG18)corecable.Ifthedistanceismorethan10m (33 ft), use a 1.25 mm2(AWG16)
junction cable.
1MA Remote controller
• Connectthe“1”and“2”onindoorunitTB15toaMAremotecontroller.(Non-polarized
2-wire)
• DC9to13Vbetween1and2(MAremotecontroller)
2M-NET Remote controller
• Connect the “M1” and “M2” on indoor unit TB5 to a M-NET remote controller.
(Nonpolarized 2-wire)
• DC24to30VbetweenM1andM2(M-NETremotecontroller)
3Wireless remote controller (When installing wireless signal receiver)
• Connectthewireofwirelesssignalreceiver(9-polecable)toCN90ofindoorcon-
troller board.
• TochangePairNo.setting,refertoinstallationmanualattachedtowirelessremote
controller. (In the default setting of indoor unit and wireless remote controller, Pair
No.is0.)
A Terminal block for indoor transmission cable
B Terminal block for outdoor transmission cable (M1(A), M2(B), (S))
C Remote controller
D Wireless signal receiver
EWireless remote controller
1
2
3
2. M-NET Remote control cables
Types of remote control cable Shielding wire MVVS
Cable diameter Morethan0.5to1.25mm2 (AWG20to
AWG16)
Length Addanyportioninexcessof10m(33ft)
to within the longest allowable transmission
cablelength200m(656ft).
3. MA Remote control cables
Types of remote control cable 2-core cable (unshielded)
Cable diameter 0.3to1.25mm2 (AWG22 to AWG16)
Length Lessthan200m(656ft)
4.5. Setting addresses (Fig. 4-9)
(Be sure to operate with the main power turned OFF.)
• Therearetwotypesofrotaryswitchsettingavailable:settingaddresses1to9and
over10,andsettingbranchnumbers.
1How to set addresses
 Example:IfAddressis“3”,remainSW12(forover10)at“0”,andmatchSW11
(for 1 to 9) with “3”.
2How to set branch numbers SW14 (Series R2 only)
Match the indoor unit’s refrigerant pipe with the BC controller’s end connection
number.
 RemainotherthanseriesR2at“0”.
• Therotaryswitchesareallsetto“0”whenshippedfromthefactory.Theseswitches
can be used to set unit addresses and branch numbers at will.
• Thedeterminationofindoorunitaddressesvarieswiththesystematsite.Setthem
referring to the Data Book.
4.6. Sensing room temperature with the built-in sensor
in a remote controller
If you want to sense room temperature with the built-in sensor in a remote controller,
set SW1-1 on the control board to “ON”. The setting of SW1-7 andSW1-8 as
necessary also makes it possible to adjust the air flow at a time when the heating
thermometer is OFF.
Fig. 4-9
BRANCH
No.
10s
DIGIT
1s
DIGIT
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4. Electrical work
4.10. Electrical characteristics
Model Power supply IFM
Volts/Hz Range+-10% MCA (A) Output (kW) FLA (A)
PLFY-P05NFMU-E
208/230V/60Hz Max.: 253V
Min.:198V
0.24 0.05 0.19
PLFY-P08NFMU-E 0.28 0.05 0.22
PLFY-P12NFMU-E 0.29 0.05 0.23
PLFY-P15NFMU-E 0.35 0.05 0.28
PLFY-P18NFMU-E 0.50 0.05 0.40
Symbols:MCA:Max.CircuitAmps(=1.25×FLA)FLA:FullLoadAmps
IFM: Indoor Fan Motor Output: Fan motor rated output
4.7. Switch setting for high ceiling
Withthisunit,theairowrateandfanspeedcanbeadjustedbysettingtheSW21-1andSW21-2.Selectasuitablesettingfromthetablebelowaccordingtotheinstalla-
tion location.
*MakesuretheSW21-1andSW21-2switchareset,otherwiseproblemssuchasnotgettingcool/warmmayoccur.
4.8. Switch setting for i-See sensor
With i-See sensor panel, SW3-4 must be adjusted as a position of i-See sensor. (Refer to page 15.)
SW21-1 SW21-2 Height
Silent – ON 2.5m,8.2ft
Standard OFF OFF 2.7m,8.9ft:defaultsetting
High ceiling ON OFF 3.0m,9.8ft
SW3-4
Position 1OFF “□”stampposition
Position 3ON “○”stampposition:defaultsetting
4.11.Howtosetthexedup/downairdirection(Onlyforwiredremotecontroller)
■Explanationofword
•"Address No. of indoor unit" is the number given to each air conditioner.
•"Outlet No." is the number given to each outlet of air conditioner.
(Refer to the right.)
• "Up/Downairdirection"isthedirection(angle)tox.
•ForPLFY-NFMU,onlythe particularoutletcanbexed to certaindirectionwith
the procedures below. Once fixed, only the set outlet is fixed every time air
conditioneristurnedon.(Other outlets followUP/DOWNairdirectionsetting of
the remote controller.)
Electric component box
Horizontalairow
Outlet No. 1
Outlet No. 3 Outlet No. 2
Outlet No. 4
Remote controller setting
Theairowdirectionofthisoutletiscontrolledby
theairowdirectionsettingofremotecontroller.
Fixed setting
Theairowdirectionofthisoutletisxedin
particular direction.
* Whenitiscoldbecauseofdirectairow,
theairowdirectioncanbexedhorizon-
tallytoavoiddirectairow.
Downward
Note:
The outlet No. is indicated by the number of grooves on both ends of each
air outlet. Set the air direction while checking the information shown on the
remote controller display.
Airoutletidenticationmarks
4.9. Switchsettingforhorizontalairowdirection
TheangleofthehorizontalairowdirectioncanbechangedusingSW3-5.
SW3-5
Draft-less OFF
Downward setting ON Default setting
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■Vane setting
No setting Step 1 Step 2
Step 4Step 3
All
outlets
Draft
reduction*
Step 5
Pressthe[SELECT]buttontosavethesettings.
A screen will appear that indicates the setting information is being
transmitted.
The setting changes will be made to the selected outlet.
The screen will automatically return to the one shown above (step 5)
when the transmission is completed.
Make the settings for other outlets, following the same procedures.
If all outlets are selected, willbedisplayedthenexttimetheunit
goes into operation.
Navigating through the screens
• TogobacktotheMainmenu .........................[MENU]button
• Toreturntothepreviousscreen....................[RETURN]button
■Conrmationprocedure
F1 F2 F3 F4
Manual vane angle
Input display:
Address Check
M-NET address
Identify unit Check button
F1 F2 F3 F4
Manual vane angle
Return:
M-NET address
Function setting for unit
with vane fully open.
F1 F2 F3 F4
Manual vane angle
Return:
No communication
Check Unit state.
■Manual vane angle
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Maintenance
Initial setting
Service
F1 F2 F3 F4
Maintenance menu
Main menu:
Cursor
Auto descending panel
Manual vane angle
3D i-See sensor
F1 F2 F3 F4
Manual vane angle
Input display:
Address Check
M-NET address
Identify unit Check button
F1 F2 F3 F4
Manual vane angle
Manual vane angle
Select:
Setting
Outlet Angle
1Select "Maintenance" from the Main
menu,andpressthe[SELECT]
button.
2Select "Manual vane angle" with
the  [F1] or [F2] button, and press
the[SELECT]button.
4. Electrical work
3Select the "M-NET address" for
the units to whose vanes are to be
fixed, with the [F2] or [F3] button,
andpressthe[SELECT]button.
 Pressthe[F4]buttontoconrmthe
unit.
The vane of only the target indoor
unit is pointing downward.
1Select the "M-NET address" for
the units to whose vanes are to be
xed,withthe[F2]or[F3]button.
 Pressthe[F4]buttonto confirm
the unit.
2Afterpressingthe[F4]button,
wait approximately 15 seconds,
and then check the current state
of the air conditioner.
 →Thevaneispointingdownward.
→Thisairconditionerisdisplayed
on the remote controller.
 →Alloutletsareclosed.→Press
the [RETURN] button and contin-
ue the operation from the begin-
ning.
 →Themessagesshowntothe
leftaredisplayed.→Thetarget
device does not exist at this refrig-
erant address.
• Pressthe[RETURN]buttontore-
turn to the initial screen.
3Change the "M-NET address" to
the next number.
•Refertostep1to change the
"M-NET address" and continue
withtheconrmation.
4
The current vane setting will appear.
Select the desired outlets from 1
through4withthe[F1]or[F2]button.
•Outlet:"1","2","3","4"and"1,2,3,
4, (all outlets)"
Pressthe[F3]or[F4]buttontogo
through the option in the order of
"No setting (reset)," "Step 1", "Step
2", "Step 3", "Step 4", "Step 5" and
“Draft reduction*”.
Select the desired setting.
* Draft reduction
The airflow direction for this
setting is more horizontal than the
airflow direction for the “Step 1”
setting in order to reduce a drafty
feeling. The draft reduction can be
set for only 1 vane.
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4. Electrical work
4.12. Initial setting
The following settings can be made in the initial setting mode.
Item Setting Fig. 4-11
Temperature unit ºC/ºF A
Time display 12-hourformat/24-hourformat B
AUTO mode Singlesetpoint/Dualsetpoint C
Pair No. 0–3 D
Backlight On/Off E
4.12.1. Switching to the initial setting mode
1.Press the button 1to stop the air conditioner.
2.Press the button 2.
The Function setting screen will be displayed and the function No. Awillash.
(Fig.4-10)
3.Check that function No. “1” is displayed, and then press the button 3.
The Screen display setting screen will be displayed. (Fig. 4-11)
Press the button 4to change the function No.
4.12.2. Changing the temperature unit (Fig. 4-11 A)
Press the button 5.
Each time the button 5is pressed, the setting switches between and .
: The temperature is displayed in degrees Celsius.
: The temperature is displayed in degrees Fahrenheit.
4.12.3. Changing the time display (Fig. 4-11 B)
Press the button 6.
Each time the button 6is pressed, the setting switches between and
.
: The time is displayed in the 12-hour format.
: The time is displayed in the 24-hour format.
4.12.4. Changing the AUTO mode (Fig. 4-11 C)
Press the button 7.
Each time the button 7is pressed, the setting switches between and .
: The AUTO mode operates as the usual automatic mode.
: The AUTO mode operates using dual set points.
4.12.5. Changing the pair No. (Fig. 4-11 D)
Press the button 4.
Each time the button 4ispressed,thepairNo.0–3changes.
Pair No. of
wireless remote
controller
Indoor PC board SW22
SW22-3 SW22-4
0ON ON Initial setting
1 OFF ON
2 ON OFF
3 OFF OFF
4.12.6. Changing the backlight setting E
Press the button 8.
Each time the button 8is pressed, the setting switches between and
.
: The backlight comes on when a button is pressed.
: The backlight does not come on when a button is pressed.
4.12.7. Completing the setting
Press the button 3.
• ThefunctionNoAblinks(Fig.4-10)
Press the button 2.
• Theremotecontrollerexitstheinitialsettingmode.
(The air conditioner operation is stopped.)
4.12.8. How to disable Auto mode operation (Fig. 4-12)
1.Press the button 1to stop the air conditioner.
• Iftheweeklytimerisenabled,pressthe button 6to disable the timer.
( Bdisappears.)
2.Press the button 2for 5 seconds.
• Theunitentersthefunctionsettingmode.(ThegroupmodelsettingnumberA
blinks.)
3.Press the button 5.
• Enterthegroupmodelsettingnumberto"066".(Thefactorysettingis"002".)
4.Completing the settings (Fig. 4-12)
Press the button 2for 5 seconds.
• Theremotecontrollerexitsthefunctionsettingmode.
Fig. 4-10 Fig. 4-11
A
A
D
E
C
B
7
1
4
2
3
6
5
8
Fig. 4-12
3
5
6
1
A
4
2
B
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5.3. Installing the grille
• Pleasepayattentionbecausethereisarestrictionintheattachmentpositionofthe
grille.
5.3.1. Temporarily installing the grille
Align the screw holes in the corners of the grille with the screw mounting holes in the
corners of the main unit, latch the two hooks on the grille onto the drain pan projec-
tions on the main unit, and temporarily hang the grille. (Fig. 5-5, 5-6)
Caution:
When installing the i-See sensor and signal receiver, place the junction wires
intheconnectorboxbeforetemporarilyhangingthegrille.
Refer to 4.1.1. on page 7 to route the junction wires.
5. Installing the grille
Fig. 5-3
Fig. 5-4
5.2. Preparing to attach the grille (Fig. 5-2)
• Withthegaugesuppliedwiththiskit,adjustandcheckthepositioningoftheunit
relative to the ceiling. If the unit is not properly positioned in the ceiling, there may
beairleaks,condensationmayform,ortheup/downvanesmaynotoperatecor-
rectly.
• Makesurethattheopeningintheceilingiswithinthefollowingtolerances:
 576×576to610×610(mm),22-11/16×22-11/16to24-1/32×24-1/32(inch)
• MakesurethatstepAisperformedwithin37to42mm(1-15/32to1-21/32inch).
Damage could result by failing to adhere to this range.
AMain unit
BCeiling
CGauge (Accessory)
DCeiling opening dimensions
5.2.1. Removing the intake grille (Fig. 5-3)
• Slidetheleversinthedirectionindicatedbythearrow1to open the intake grille.
• Unlatchthehookthatsecuresthegrille.
* Do not unlatch the hook for the intake grille.
• Withtheintakegrilleinthe“open”position,removethehingeoftheintakegrille
from the grille as indicated by the arrow 2.
AIntake grille
BGrille
CIntake grille levers
5.2.2. Removing the corner panel (Fig. 5-4)
• Removethescrewfromthecornerofthecornerpanel.Slidethecornerpanelas
indicated by the arrow 1to remove the corner panel.
AGrille
BCorner panel
CScrew
Fig. 5-2
5.1. Check the grille accessories (Fig. 5-1)
• Thegrilleshouldbesuppliedwiththefollowingaccessories.
Accessory name Q’ty Remark
1Grille 1 625 × 625 (mm), 24-19/32 × 24-
19/32(inch)
2Screw with washer 4 M5×0.8×28(mm)
3Gauge 1
4Junction wire for signal receiver 1Included when equipped with the
signal receiver.
5Junction wire for i-See sensor 1 Included when equipped with the
i-See sensor.
6Fastener 2 Included when equipped with the
signal receiver.
7Fastener 2 Included when equipped with the
i-See sensor.
8Wireless remote controller 1Included when equipped with the
wireless remote controller.
9Remote controller holder 1Included when equipped with the
wireless remote controller.
0LR6 AA batteries 2 Included when equipped with the
wireless remote controller.
13.5×16mmtappingscrews 2Included when equipped with the
wireless remote controller.
Fig. 5-1
22-11/16to24-1/32D
A=1-15/32+3/16
0
E
112
A
C
B
D
A
1
B
C
Fig. 5-5 Fig. 5-6
<Grille hook> <Grille is hung temporarily>
Main unit
hook
DGrille hook
EHole for the grille’s hook
1
2 3
When equipped with the signal receiver When equipped with the i-See sensor
4657
When equipped with the wireless remote controller
890 1
(inch)
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5. Installing the grille
B
A
D
C
C
G
Fig. 5-8Fig. 5-7
5.3.2. Securing the grille
• Securethegrillebytighteningthefourscrews.(Fig.5-7)
* Make sure that there are no gaps between the main unit and the grille or the grille
andtheceiling.(Fig.5-8)
AMain unit
BElectric component box
CScrew with washer (Accessory)
DGrille
ECeiling
FMake sure that there are no gaps.
GTemporary hanging hooks on the panel
Caution:
When tightening the screw with captive washer C, tighten it at a torque of
4.8N∙m(4ft∙lbs)orless.Neveruseanimpactscrewdriver.
It may result in parts damage.
• Aftertighteningthescrew,conrmthatthetwogrillehooks(Fig.5-6)are
latched onto the hooks on the main unit.
5.3.3. Connecting the wires
1Remove the one screw securing the connector box cover, slide the cover in the
direction indicated by the arrow as shown in the diagram, and then open the cover.
2In the connector box, locate the junction wire for the vane motor of the grille and
the wire for the vane motor, and then connect the wires. (Fig. 5-9)
There are two vane motor connectors: one blue connector and one orange con-
nector. Make sure that the connector colors match when connecting them.
3After placing the wires in the connector box, close the connector box cover. Make
surethatthewiresdonotgetpinched.(Fig.5-10)
When closing the connector box cover, slide the cover in the direction indicated by
thearrowandmakesurethattheprojectionisrmlyinserted.
AConnector box cover
BConnector box
CSecuring screw
DJunction connector
EWire connector for the vane motor
FBand
Caution:
• Placethebandsecuringthepanelvanemotorwireintheconnectorboxas
shown in the diagram. (Fig. 5-11)
• Whenclosingtheconnectorboxcover,makesurethatthewiresdonotget
pinched.
ED
F
A
Fig. 5-9
Fig. 5-10
Fig. 5-11
A
C
DB
E
F
E
E
D
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5. Installing the grille
F
E
5.3.4. Wiring the i-See sensor corner panel and signal receiver
• Installthei-Seesensorandsignalreceiveratthecornersofthepanelattheloca-
tionsstampedwith“○”or“□”.(Thepositionsmaybereversed.)
• Routethei-Seesensorandsignalreceiverwiresthroughthesquareholesatthe
corners of the panel and install them.
• Connectthejunctionwireconnectorandthewireconnectorsofthei-Seesensor
and signal receiver in the connector box.
• Closetheconnectorboxcover.
• Securethei-Seesensorandsignalreceiverwirestothepanelwiththefastener
as shown in the diagram so that there is no slack in the wires, and then cut off the
excess end of the fastener. (Fig. 5-13)
• Placethei-Seesensorandsignalreceiverwirestotheinsideoftheangeonthe
panel.
• Ifthepositionofthei-Seesensorwaschangedfromthe“○”position(E)tothe“□”
position(F),changetheswitchsettings.(Refertopage10.)
Caution:
• Routethei-SeesensorandsignalreceiverwiresasshowninFig.5-14.
• Placetheexcessportionsofthei-Seesensorandsignalreceiverjunction
wiresintheelectriccomponentboxinthewireclipasshowninthediagram,
and secure the wires together with the fastener. (Fig. 5-15)
Make sure that the band securing the i-See sensor and signal receiver junc-
tionwiresispositionedinsidetheconnectorbox.(Fig.5-16)
• Ifthevanemotorconnectorsandsignalreceiverconnectorareconnected
incorrectly, the vanes will not move or communication with the remote con-
troller will not be possible.
Ai-See sensor
BSignal receiver
CFastener
DWire clip
E “○”stamp:defaulti-Seesensorposition
F “□”stamp:defaultsignalreceiverposition
B
A
i-See sensor
or signal
receiver
Vane
Fig. 5-14
Fig. 5-15
Fig. 5-16
C
Fig. 5-12
C
Fig. 5-13
D
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5.4. Locking the up/down airflow direction (Fig. 5-17)
The vanes of the unit can be set and locked in up or down orientations depending
upon the environment of use.
• Setaccordingtothepreferenceofthecustomer.
 Theoperation ofthe fixedup/down vanes andall automaticcontrols cannotbe
performed using the remote controller. In addition, the actual position of the vanes
may differ from the position indicated on the remote controller.
1Turn off the main power switch.
Injuries and or an electrical shock may occur while the fan of the unit is rotating.
2Disconnect the connector for the vane motor of the vent that you want to lock.
(While pressing the button, remove the connector in the direction indicated by
the arrow as shown in the diagram.) After removing the connector, insulate it with
tape.
Caution:
Do not set the up/down vanes passed the specified range. Condensation could
form on and drop from the ceiling, or the unit could malfunction.
Fig. 5-17
AButton
BVane motor
CUp/downvanes
DConnector
5. Installing the grille
Signal receiver
Fig. 5-18
5.5. Installing the intake grille (Fig. 5-18)
• Performtheprocedurethatisdescribedin“5.2.Preparingtoattachthegrille”in
reverse order to install the intake grille and the corner panel.
ARefrigerant piping of the main unit
BDrain piping of the main unit
CCorner panel
* Installation in any position is possible.
DPosition of the levers on the intake grille when sent from the factory.
* Although the clips can be installed in any of four positions.
EReceiver (for PAR-SF9FA-E)
5.6. Check
• Makesurethatthereisnogapbetweentheunitandthegrille,orbetweenthegrille
and the surface of the ceiling. If there is any gap between the unit and the grille, or
between the grille and the surface of the ceiling, it may cause dew to collect.
• Makesurethatthewireshavebeensecurelyconnected.
• Checkthatallfourvanesmove.Iftwoorfourvanesdonotmove,referto5.3.and
check the connections.
• For3Di-Seesensorcornerpanel,checktherotatingmovement.Ifthe3Di-See
sensor does not rotate, review the procedure in “5.3. Installing the grille”.
E
ADB
E
C
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6.2. Test run
The following 3 methods are available.
6.2.1. Using wired remote controller (Fig. 6-1)
Function buttons
4 3 2 1
5
6
7 8 9 0
▌1[ON/OFF] button
PresstoturnON/OFFtheindoorunit.
▌2[SELECT] button
Press to save the setting.
▌3[RETURN] button
Press to return to the previous screen.
▌4[MENU] button
Press to bring up the Main menu.
▌5Backlit LCD
Operation settings will appear.
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.
When the backlight is off, pressing any button turns the backlight on and does
notperformitsfunction.(exceptforthe[ON/OFF]button)
▌6ON/OFF lamp
This lamp lights up in green while the unit is in operation. It blinks while the
remote controller is starting up or when there is an error.
▌7Function button [F1]
Main display: Press to change the operation mode.
Main menu: Press to move the cursor down.
▌8Function button [F2]
Main display: Press to decrease temperature.
Main menu: Press to move the cursor up.
▌9Function button [F3]
Main display: Press to increase temperature.
Main menu: Press to go to the previous page.
▌0Function button [F4]
Main display: Press to change the fan speed.
Main menu: Press to go to the next page.
Controller interface
Fig. 6-1
Step 1 Switch the remote controller to “Test run”.
1Select “Service” from the Main menu, and press the button.
2When the Service menu is selected, a window will appear asking for the password. (Fig. 6-2)
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 button.
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 and F2 buttons simultaneously for three seconds on the maintenance password setting screen.
3Select “Test run” with the F1 or F2 button, and press the button. (Fig. 6-3)
4Select “Test run” with the F1 or F2 button, and press the button. (Fig. 6-4)
F1 F2 F3 F4
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Test run
Input maintenance info.
Function setting
Check
Self check
Fig. 6-3
F1 F2 F3 F4
Test run menu
Cursor
Service menu:
Test run
Drain pump test run
Fig. 6-4
F1 F2 F3 F4
Service menu
Cursor
Select:
Enter maintenance password
Fig. 6-2
6. Test run
6.1. Before test run
►After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply
or control wiring, wrong polarity, and no disconnection of one phase in the
supply.
►Use a 500-volt megohmmeter to check that the resistance between the power
supplyterminalsandgroundisatleast1.0MΩ.
►Do not carry out this test on the control wiring (low voltage circuit) terminals.
Warning:
Donotusetheairconditioneriftheinsulationresistanceislessthan1.0MΩ.
BH79A348H01_en.indd 17 9/25/2017 10:55:22 AM

18
GB
6.3. Check of drainage (Fig. 6-9)
• Ensurethatthewaterisbeingproperlydrainedoutandthatnowaterisleaking
from joints.
When electric work is completed.
· Pour water during cooling operation and check.
When electric work is not completed.
· Pour water during emergency operation and check.
* Drainpanandfanare activatedsimultaneouslywhensinglephase208/230Vis
turned on to L1 and L2 on terminal block after the connecter (SWE) on controller
board in the electrical branch box is set to ON.
Be sure to turn it back to the former state after work.
45
8
6
23
7
6.2.2. Using the wireless remote controller
1Turn on the power to the unit at least 12 hours before the test run.
2Press the button for 5 seconds. (Fig. 6-7)
(Perform this operation when the remote controller display is turned off.)
3Press the button.
A[TEST]andthecurrentoperationmodearedisplayed.(Fig.6-8)
4Press the button to activate cool mode, then check whether cool air is
blown out from the unit.
5Press the button to activate heat mode, then check whether warm air is
blown out from the unit.
6Press the button and check whether the fan speed changes.
7Press the button and check whether the auto vane operates properly.
8Press the button to stop the test run.
(After two hours, a signal will be sent to stop the test run.)
Note:
• Pointtheremotecontrollertowardstheindoorunitreceiverwhilefollowing
steps 3to 8.
• ItisnotpossibletoperformthetestruninFAN,DRY,orAUTOmode.
6. Test run
F1 F2 F3 F4
F
83
Cool
Pipe
Auto
Switch disp.
Mode Fan
RemainTest run
Fig. 6-5
F1 F2 F3 F4
Remain
Vane
Fig. 6-6
Step2 Performthetestrunandchecktheairowtemperatureandautovane.
1Press the F1 button to go through the operation modes in the order of “Cool”
and “Heat”. (Fig. 6-5)
Cool mode: Check the cold air blow off.
Heat mode: Check the heat blow off.
* Check the operation of the outdoor unit’s fan.
2Press the button and open the Vane setting screen.
If the vanes do not move, check that the junction wire connectors are connected
securely and the connector colors match.
AUTO vane check
1Check the auto vane with the F1 F2 buttons. (Fig. 6-6)
2Press the button to return to “Test run operation”.
3Press the button.
B
D
A
C
AWater supply pump
BWater(about1000cc,1/4gal)
CDrain plug
DPour water through outlet
•Be careful not to spray water into
the drain pump mechanism.
Fig. 6-9
Fig. 6-7
Fig. 6-8
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19
F
►Avant d'installer le climatiseur, lisez attentivement toutes les "Consignes
de sécurité".
►Il est nécessaire de consulter ou d'obtenir l'autorisation de la compagnie
d’électricité concernée avant de connecter le système.
Avertissement :
Précautions à suivre pour éviter tout danger de blessure ou de décès de
l'utilisateur.
Attention :
Décrit les précautions qui doivent être prises pour éviter d’endommager
l’appareil.
Une fois l’installation terminée, expliquez les "Consignes de sécurité", l’utilisation et
l’entretien de l’appareil au client conformément aux informations du mode d’emploi et
effectuez l’essai de fonctionnement en continu pour garantir un fonctionnement normal.
Le manuel d’installation et le mode d’emploi doivent être fournis à l’utilisateur qui doit
les conserver. Ces manuels doivent également être transmis aux utilisateurs successifs.
Table des matières
Avertissement :
• Demandezàvotrerevendeurouàuntechnicienagrééd'installerleclimatiseur.
•
N'essayez jamais de réparer ou de déplacer vous-même l’appareil.
• Installezl'appareilsurunestructurecapabledesupportersonpoids.
• N'utilisez que les câble spécifiés pour les raccordements. Les raccordements
doivent être réalisés correctement sans tension sur les bornes. En outre,
n'effectuez jamais d'épissure sur les câbles (sauf en cas d'indication contraire
dans le présent document).
 Lenon-respectdecesinstructionspeutprovoquerunesurchauffe,ouun
incendie.
• Utilisezuniquementles accessoires autoriséspar Mitsubishi Electricet
demandezàvotrerevendeurouàuntechnicienagréédelesinstaller.
• Netouchezjamaislesailettesdel'échangeurdechaleur.
• Installezleclimatiseurenrespectantlesinstructionsdumanueld'installation.
•
Demandez à un électricien agréé d'effectuer l'installation électrique conformément
aux réglementations nationales.
• L’installation de l’appareil doit être conforme aux réglementations nationales
relatives au câblage.
• Silecordond’alimentationestendommagé,ildoitêtreremplacéparlefabri-
cant,sesreprésentantsouuntechniciendemêmecompétencepouréviter
tout risque potentiel.
• Sileclimatiseurestinstallédansunepetitepièce,certainesmesuresdoivent
être prises pour éviter que la concentration de réfrigérant ne dépasse le seuil
de sécurité en cas de fuite de réfrigérant.
• Lespartiesdétachéesdelafaceprédécoupéepeuventprovoquerdesbles-
sures par coupure, etc. Pour cette raison, les installateurs doivent porter des
équipements de protection individuelle tels que des gants, etc.
• Lorsdel’installation,dudéplacementoudel’entretienduclimatiseur,n'utilisez
que le réfrigérant spécifié (R410A) pour remplir les tuyaux de réfrigérant. Ne
le mélangez pas avec un autre réfrigérant et veiller à ce que les tuyaux soient
exempts d'air.
Unmélanged’airetderéfrigérantpeutêtreàl’origined’unepressionanormalement
élevée dans la tuyauterie de réfrigérant, ce qui peut résulter en une explosion et
d’autres risques.
L’utilisation d’un réfrigérant autre que celui spécifié pour le système provo-
querait une défaillance mécanique, un dysfonctionnement du système ou une
panne de l’appareil. Dans le pire des cas, la sécurité du produit pourrait être
gravement affectée.
1. Mesuresdeprécaution
: Indique une action qui doit être évitée.
: Indique des instructions importantes qui doivent être suivies.
: Indique un élément qui doit être mis à la terre.
: Indique des précautions à prendre lors du maniement de pièces tournantes.
: Indique que l’interrupteur principal doit être désactivé avant d’effectuer tout
travail d’entretien.
: Danger d’électrocution.
: Attention, surface chaude.
: Lors de travaux d’entretien, coupez l’alimentation de l’appareil intérieur ainsi
que de l’appareil extérieur.
Avertissement :
Prenez soin de lire les étiquettes se trouvant sur l’appareil principal.
Installez l’appareil intérieur à 2,4 m (8 pieds) au moins au-dessus du sol ou
sur un plan surélevé.
Pour les appareils qui ne sont pas accessibles au public.
Attention :
• N'utilisezpasletuyauderéfrigérantexistant.
• Appliquezunepetitequantitéd’huileester,d´huileoud´alkylbenzènecomme
huileréfrigérantesurlessectionsévasées.
• N'utilisezpasleclimatiseurdanslesendroitsoùsetrouventdesaliments,
des animaux domestiques, des plantes, des instruments de précision ou des
œuvres d'art.
• N'utilisezpasleclimatiseurdansdesenvironnementsspéciaux.
• Raccordezl'appareilàlaterre.
• Installezundisjoncteur,sinécessaire.
• Utilisezdescâblesd'alimentationélectriquedecapacitéetdeclassenominale
suffisantes.
• Utilisezuniquementundisjoncteuretunfusibledelacapacitéspécifiée.
• Netouchezpaslesinterrupteursavecdesdoigtshumidesoumouillés.
• Netouchezpaslestuyauxderéfrigérantpendantetimmédiatementaprès
utilisation.
• N'utilisezpasleclimatiseuraveclespanneauxetlesprotectionsretirés.
• Necoupez pasl'alimentationélectriqueimmédiatementaprèsavoirarrêté
d'utiliser le climatiseur.
•
Sil’appareilfonctionnependantdenombreusesheureslorsquelatempérature/
letauxd’humidité de l’airau-dessusdu plafond sont élevés(pointde rosée
supérieur à 26 °C, 79 ºF), de la condensation peut se produire dans l’appareil
intérieuroudanslesmatériauxduplafond.Silesappareilsdoiventêtreutilisés
danscesconditions,ajoutezunecouched’isolation(10à20mm,13/32à15/32
pouce) sur toute la surface de l’appareil et du plafond pour éviter la condensation.
2. Installation de l'appareil intérieur
2.1. Vérifiez les accessoires qui accompagnent l’appa-
reil intérieur (Fig. 2-1)
L’appareil intérieur doit être livré avec les accessoires suivants.
Nom de l’accessoire Qté
1Schéma d’installation 1
2Rondelles (avec isolation)
Rondelles (sans isolation)
4
4
3
Cache-tuyaux (pour le raccord des tuyaux de réfrigérant)
petit diamètre (liquide)
grand diamètre (gaz) 1
1
4
Courroie (large)
Courroie (moyenne)
Courroie (étroite) * Utilisez uniquement une courroie.
6
2
2
5Prise d'écoulement 1
6Isolation 1
Fig. 2-1
1 2
3 4
5 6
Remarque :
Dansleprésentmanueld'installation,l’expression"Télécommandefilaire"faitréférenceaumodèlePAR-32MAA.
Pour toute information sur l'autre télécommande, reportez-vous au manuel d’installation ou au manuel de réglage initial fournis dans les boîtes.
1. Mesures de précaution............................................................................19
2. Installation de l'appareil intérieur.............................................................19
3. Tuyau de réfrigérant et tuyau de vidange................................................22
4. Installations électriques ...........................................................................23
5. Installation de la grille..............................................................................30
6. Essai de fonctionnement .........................................................................34
BH79A348H01_FR.indd 19 9/4/2017 3:23:40 PM

20
F
2.2. Emplacement d'installation des ouvertures au pla-
fond et boulon de suspension (Fig. 2-2)
• Àl’aidedumodèled’installationetdelajauge(fourniecommeaccessoireavec
la grille), réalisez une ouverture dans le plafond afin de pouvoir installer l’appareil
principal comme indiqué sur le schéma. (La méthode d’utilisation du modèle et de
lajaugeyfigure.)
* Avantutilisation,vérifiezlesdimensionsdumodèleetdelajauge,carilssont
sensibles aux fluctuations de température et d'humidité.
* Les dimensions de l’ouverture au plafond peuvent être comprises dans la plage
figurant sur le schéma suivant. Par conséquent, centrez l’appareil principal dans
l’ouverture en veillant à ce que le dégagement des côtés opposés respectifs
soit identique.
• UtilisezdesboulonsdesuspensionM10(3/8").
* Les boulons de suspensions doivent être procurés sur place.
• Parmesuredesécurité,effectuezl'installationdesortequ'iln'yaitpasd'espace
entre le panneau du plafond et la grille, ainsi qu'entre l'appareil principal et la grille.
2. Installation de l'appareil intérieur
ACôté extérieur de l'appareil principal
BBoulon de suspension
COuverture au plafond
DCôté extérieur de la grille
EGrille
FPlafond
GMin. 500 mm (20 pouces) (périphérie complète)
Lors de la détermination de l'espace néces-
saire à l'entretien pour G, veillez à laisser une
distanced'aumoins700mm(28pouces).
HEspace nécessaire à l'entretien
IArrivée d'air frais
JAngle
KBoîtier des composants électriques
* Laissez l'espace nécessaire à l'entretien à l'extrémité du boîtier des composants électriques.
*1 En cas d'installation dans un emplacement existant au plafond ou en cas d'application
d'isolation supplémentaire, veillez à laisser une distance minimale de 25 mm (1 pouce).
2.3. Installationdeconduit(encasd'arrivéed'airfrais)
 (Fig.2-3)
Attention :
Raccordement du ventilateur de conduit et du climatiseur
En cas d'utilisation d'un ventilateur de conduit, veillez à le connecter au clima-
tiseur en cas d’aspiration d’air extérieur.
Ne faites pas fonctionner le ventilateur de conduit seul. Cela pourrait provoquer
des gouttes de condensation.
Évasement d'un conduit (à effectuer sur place)
• Laformed'évasementdeconduitmontréeàgaucheestrecommandée.
Miseenplaceduconduitévasé
• Découpezl'orificeàdégager.Nepoussezpasdessuspourledégager.
• Installezunconduitévasésurl'orificeàdécouperdel'appareilintérieur,àl'aidede
trois vis autotaraudeuses de 4 ×10 mm à vous procurer sur place.
Installation du conduit (à effectuer sur place)
• Préparezunconduitdontlediamètreintérieurs'adapteaudiamètreextérieurduconduit
évasé.
• Sil'environnementsituéau-dessusduplafondprésentedestempératuresélevées
et un haut degré d'humidité, enveloppez le conduit avec une protection thermique
pour éviter la chute de gouttes de condensation sur le mur.
Retirez l'isolation du bac de récupération.
AForme recommandée pour l'isolation
 (Épaisseur:0,8mm(1/32pouce)ouplus)
B3trousø5mm(3/16pouce)
CSchéma détaillé de l'arrivée d'air frais
DAppareil intérieur
ESurface du plafond
F3 trous de vis autotaraudeuse
GOrifice à découper ø 73,4 mm (2-7/8
pouces)
HConduit évasé (à effectuer sur place)
IVis autotaraudeuse 4 ×10 mm (à se
procurer sur place)
JIsolation
Fig. 2-2
Fig.2-3
(pouce)
Raccordement du conduit évasé
(pouce)
(22-11/16) C
J
(22-11/16)
C
I
*1
K
FEG
13/32
1-15/32
+3/16 0
Sol
9/32à31/329/32à31/32
Min.18H
9/32à31/329/32à31/32
Min
.3/16
Min.94-1/2
Min.18H
22-7/16A
20-21/32B
18-15/16
13-5/16
24-19/32D
22-11/16à24-1/32C
16-1/16
24-19/32
D
22-11/16à24-1/32
C
16-1/16
20-21/32B
22-7/16A
5
7-7/16
2-1/16
1-31/32à3-5/8
9-21/32
8-3/16
5-29/32
3-15/32
A C
HI
B
G
E
F
J
D
120°
120°
120°
60°
ø 3-15/16ø 3-15/16
ø 3-15/16
ø 2-15/16ø 2-15/16
19/32
25/32
2-3/4
5-1/2
7-5/16
1-15/32 +3/16
08-3/16
ø 3-15/16
BH79A348H01_FR.indd 20 9/4/2017 3:23:42 PM