Samsung AM NN1PEH Series User manual

Airconditioner
Installationmanual
AM***NN1PEH***/AM***NN1DEH***/AM***NN1DKH***
࡛Thankyou forpurchasing this Samsung airconditioner.
࡛Before operating this unit, please readthis manual carefullyand retain itforfuture
reference.

2English
Contents
SafetyInformation 3
InstallationProcedure 5
Step1 Checking and preparing accessories 5
Step 2 Choosing the installation location 5
Step 3 Optional: Insulating the body ofthe indoorunit 9
Step 4 Installing the indoorunit 9
Step 5 Purging inert gas fromthe indoorunit 11
Step 6 Cutting and flaring the pipes 11
Step 7 Connecting the assemblypipesto the refrigerant pipes 12
Step 8 Performing the gas leaktest 13
Step 9 Insulating the refrigerant pipes 13
Step10 Installing the drain hose and drain pipe 15
Step11 Performing the drainage test 16
Step12 Connectingthe powerand communication cables 17
Step13 Optional: Extending the powercable 20
Step14 Setting the indoorunit addresses andthe installation options 22
Performing final check and trial operation 39
Appendix 42
Troubleshooting 42

3
English
SafetyInformation
WARNING
࡛ Hazards orunsafe practices that mayresult in severe
personal injuryordeath.
CAUTION
࡛ Hazards orunsafe practices that mayresult in minor
personal injuryorproperty damage.
࡛ Carefullyfollowtheprecautionslistedbelowbecausethey
areessentialtoguaranteethesafetyoftheequipment.
WARNING
࡛ Always disconnect the airconditionerfromthe power
supplybefore servicing it oraccessing its internal
components.
࡛ Verifythat installation and testing operations are
performed byqualified personnel.
࡛ Verifythat the airconditioneris not installed in an
easilyaccessible area.
Generalinformation
WARNING
࡛ Carefullyread the content ofthis manual before
installing the airconditionerand storethe manual in
a safe place in orderto be able to use it as reference
afterinstallation.
࡛ Formaximum safety, installers should always carefully
read the followingwarnings.
࡛ Store the operation and installation manual in a safe
location and rememberto hand it overto the new
ownerif the airconditioneris sold ortransferred.
࡛ This manual explains howto install an indoorunit with
a split systemwith two SAMSUNG units. The use of
othertypes of unitswith different control systems may
damage the units and invalidate thewarranty. The
manufacturershall not be responsible fordamages
arising from the use of non compliant units.
࡛ The manufacturershall not be responsible fordamage
originating from unauthorized changes orthe
improperconnection of electric and requirements set
forth in the“Operating limits” table, included in the
manual, shall immediatelyinvalidate the warranty.
࡛ Theairconditionershouldbeusedonlyfortheapplicationsfor
whichithasbeendesigned:theindoorunitisnotsuitableto
beinstalledinareasusedforlaundry.
࡛ Donotusetheunitsifdamaged.Ifproblemsoccur,switch
theunitoffanddisconnectitfromthepowersupply.
࡛ In orderto prevent electric shocks, fires orinjuries,
always stopthe unit, disable the protection switch
and contact SAMSUNG’s technical support if the unit
produces smoke, ifthe powercable is hot ordamaged
orif the unit isvery noisy.
࡛ Always rememberto inspect the unit, electric
connections, refrigerant tubes and protections
regularly. These operations should be performed by
qualified personnel only.
࡛ The unit contains moving parts,which should always
be kept out of the reach of children.
࡛ Do not attemptto repair, move, alterorreinstall the
unit. If performed byunauthorized personnel, these
operations maycause electric shocks orfires.
࡛ Do not place containerswith liquids orotherobjects
on the unit.
࡛ All the materials usedforthe manufacture and
packaging of the airconditionerare recyclable.
࡛ The packing material and exhaust batteries of the
remote controller(optional) must be disposed of in
accordancewith current laws.
࡛ The airconditionercontains a refrigerantthat has
to be disposed of as specialwaste.At the end of its
life cycle, the airconditionermust be disposed of in
authorized centres orreturned to the retailerso that it
can be disposed of correctlyand safely.
Installingtheunit
WARNING
IMPORTANT:Wheninstallingtheunit,alwaysremember
toconnectfirsttherefrigeranttubes, thentheelectrical
lines.
࡛ Always disassemble the electric lines before the
refrigerant tubes.
࡛ Upon receipt, inspect the product toverifythat
it has not been damaged during transport. If the
product appears damaged, DO NOTINSTALLit and
immediatelyreport the damage to the carrieror
retailer(if the installerorthe authorized technician has
collected the material from the retailer.)
࡛ Aftercompletingthe installation, always carryout a
functional test and providethe instructions on howto
operatethe airconditionerto the user.
SafetyInformation

4
SafetyInformation
English
SafetyInformation
࡛ Do not use the airconditionerin environmentswith
hazardous substances orclose to equipment that
release free flames to avoid the occurrence of fires,
explosions orinjuries.
࡛ Do not install the product in a placewhere
thermohygrostat is needed (such as serverroom,
machineryroom, computerroom, etc.) Those places
do not provide guaranteed operation condition ofthe
producttherefore performance can be poorin these
places.
࡛ Do not install the product in a ship oravehicle (such
as a campervan). Salt,vibration orotherenvironmental
factormaycause the product malfunction, electric
shock orfire.
࡛ Ourunits must be installed in compliancewith the
space specifications presented inthe installation
manual in orderto ensure accessibilityfrom both sides
and allowrepairs ormaintenance operations to be
carried out.
The unit’s components must be accessible and easyto
disassemblewithout endangering people and objects.
Forthis reason,where it is not observed as indicated
into the Installation Manual,the cost necessary
to reach and repairthe unit (in safety, as required
bycurrent regulations inforce)with slings, trucks,
scaffolding oranyothermeans of elevationwon’t be
considered in-warrantyand charged to end user.
Powersupplyline,fuseorcircuit
breaker
WARNING
࡛ Always make sure thatthe powersupplyis compliant
with current safetystandards. Always install the air
conditionerin compliancewith current local safety
standards.
࡛ Alwaysverifythat a suitable grounding connection is
available.
࡛ Verifythat the voltage and frequencyof the power
supplycomplywith the specifications and that the
installed poweris sufficient to ensure the operation of
anyotherdomestic appliance connectedtothe same
electric lines.
࡛ Alwaysverifythat the cut-off and protection switches
are suitablydimensioned.
࡛ Verifythat the air conditioneris connected to the
powersupplyin accordance with the instructions
provided in thewiring diagram included in the manual.
࡛ Alwaysverifythat electric connections (cable entry,
section of leads, protections…) are compliant with
the electric specifications andwith the instructions
provided in thewiring scheme. Alwaysverifythat all
connections complywith the standards applicable to
the installation of airconditioners.
࡛ Devices disconnected from the powersupply should
be completely disconnected inthe condition of
overvoltage category.
࡛ Be sure notto perform powercable modification,
extensionwiring, and multiplewire connection.
ࣞIt maycause electric shock orfire due to poor
connection, poorinsulation, orcurrent limit override.
ࣞWhen extensionwiring is required due to power
line damage, referto Step13 Optional: Extending
the powercable in the installation manual.
CAUTION
Makesurethatyouearththecables.
࡛ Do not connect the earthwire to the gas pipe,water
pipe, lighting rod ortelephonewire. If earthing is not
complete, electric shock orfire mayoccur.
Installthecircuitbreaker.
࡛ If the circuit breakeris not installed, electric shock or
fire mayoccur.
Make surethat the condensedwaterdripping fromthe
drainhose runs out properlyand safely.
Install thepowercable and communication cable of
the indoorand outdoorunit at least1m awayfrom the
electricappliance.
Install the indoorunit away from lighting apparatus
usingtheballast.
࡛ If you use the wireless remote control, reception error
mayoccurdue to the ballast of the lighting apparatus.

5
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InstallationProcedure
InstallationProcedure
Step1 Checkingandpreparing
accessories
The following accessories are suppliedwith the indoor
unit. The type and quantitymay differ, depending on the
specifications.
Installationtemplate Dimensiongauge
Insulationdrain Flexiblehose
Rubber Installationmanual
Step2 Choosingtheinstallation
location
Installationlocationrequirements
࡛ There must be no obstacles nearthe airinlet and
outlet.
࡛ Install the indoorunit on a ceiling that can support its
weight.
࡛ Maintain sufficient clearance aroundthe indoorunit.
࡛ Before installing the indoorunit, be sureto check
whetherthe chosen location iswell-drained.
࡛ The indoorunit must be installed such that it is beyond
public access and is not touchable byusers.
࡛ Rigidwallwithoutvibration.
࡛ Where it is not exposed to direct sunshine.
࡛ Wherethe airfiltercan be removed and cleaned easily.
CAUTION
࡛ As a rule,the unit cannot be installed at a height of
less that 2.5m.
࡛ Ifyou install the cassette orduct type indoorunit on
the ceiling with humidityover80%, you must apply
extra10mm of polyethylene foam orotherinsulation
with similarmaterial on the bodyof the indoorunit.
Donotinstalltheairconditionerinfollowingplaces.
࡛ Placewhere there is mineral oil orarsenic acid. Resin
parts flame and the accessories maydrop orwater
mayleak. The capacityof the heat exchangermay
reduce orthe airconditionermay be out of order.
࡛ The placewhere corrosive gas such as sulphuric acid
gas generatesfrom thevent pipe orairoutlet.
࡛ The copperpipe orconnection pipe maycorrode and
refrigerant mayleak.
࡛ The placewhere there is a machine that generates
electromagneticwaves. The airconditionermay not
operate normallydue to control system.
࡛ The placewhere there is a dangerof existing
combustible gas, carbon fibre orflammable dust.
࡛ The placewhere thinnerorgasoline is handled. Gas
mayleak and it maycause fire.

6
InstallationProcedure
English
InstallationProcedure
Indoorunitdimensions
Slim1waycassette(Small) (Unit: mm)
67
145
107
430
A B
123
36
130 80
420
960
792(Space of suspension bolts)
860(Ceilingopeningdimension)
Ceiling
Outlet
235
(Spaceofsuspensionbolts)
380
(Ceilingopeningdimension)
Model đߢߣߩĘĘߣťk²
đߢߤߤĘĘߣťk²
Amm 134
Bmm 180
Liquidpipe connection mm Ø6.35
Gaspipe connection mm Ø12.7
Drainhoseconnection mm VP20 (outerdiameter: Ø26, innderdiameter: Ø20)
CAUTION
࡛ If the indoorunit is not leveled, drainagewaterheight measurement maybewrong and it causewatermayleak into
the room.

7
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InstallationProcedure
Slim1waycassette(Medium) (Unit: mm)
410
14534
22
46
50
77
970
80
A B
500
1198
Ceiling
1150 (Ceiling openingdimension)
249
(Space of suspension bolts)
440
(Ceilingopening dimension)
1036 (Space of suspension bolts)
Model
đߢߤߤĘĘߣUk²ࢩđߢߤߪĘĘߣUk²ࢩđߢߥߨĘĘߣUk²
đߢߤߤĘĘߣUç²ࢩđߢߤߪĘĘߣUç²ࢩđߢߥߨĘĘߣUç²
đߢߤߤĘĘߣUk²ߤࢩđߢߤߪĘĘߣUk²ߤࢩđߢߥߨĘĘߣUk²ߤ
Amm 130
Bmm 179
Liquidpipe connection mm Ø6.35
Gaspipe connection mm Ø12.7
Drainhoseconnection mm VP20 (outerdiameter: Ø26, innderdiameter: Ø20)

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InstallationProcedure
English
InstallationProcedure
Slim1waycassette(Large) (Unit: mm)
(Ceiling opening dimension)
(Ceilingopening dimension)
1380
1410
500
289
470
(Space of suspension bolts)
1260
85
35
15
1200
85
A B
Ceiling
450
14834
50
(Spaceof suspension bolts)
Model đߢߧߨĘĘߣUk² đߢߩߣĘĘߣUk²
Amm 133 138
Bmm 180 180
Liquidpipe connection mm Ø6.35 Ø9.52
Gaspipe connection mm Ø12.7 Ø15.88
Drainhoseconnection mm VP20 (outerdiameter: Ø26, innderdiameter: Ø20)

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InstallationProcedure
Spacingrequirements
150 ormore
1500 or
more
(Unit: mm)
150 or
more
150 ormore
CAUTION
࡛ The indoorunit must be installed according to the
specified distances in orderto permit accessibility
from each side, to guarantee correct operation,
maintenance, and repairof the unit.
The components of the indoorunit must be reachable
and removable undersafe conditions forpeople and
the unit.
࡛ Do not holdthe dischargewhile carrying the indoor
unit to avoid the possibility of breakage.
࡛ You must holdthe hangerplate onthe cornerand
carrythe indoorunit.
Step3 Optional:Insulatingthebodyof
theindoorunit
Ifyou install a cassette type indoorunit on the ceiling
when temperature is over27°C and humidityis over
80%,you must applyan extra10 mm thick polyethylene
insulation ora similartype of insulationto the bodyof the
indoorunit.
Cut awaythe part where pipes are pulled out forthe
insulatingwork.
Insulate the end ofthe pipe and some curved area by
using separate insulator.
Step4 Installingtheindoorunit
When deciding on the location of the airconditionerthe
following restrictions must be taken into account.
1 Place the pattern sheet onthe ceiling at the spot
whereyouwant to install the indoor unit.
NOTE
࡛ Since the diagram is made of paper, it mayshrink
orstretch slightlydue to temperature orhumidity.
Forthis reason, before drilling the holes, be sure
to maintain the correct dimensions between the
markings.
2 Insert bolt anchors, use existing ceiling supports or
construct a suitable support as shown infigure.
Concrete
Hole in anchor
Hole in plug
Suspension bolt (ø9.52 orM10)
Insert

10
InstallationProcedure
English
InstallationProcedure
3 Install the suspension bolts, depending on the ceiling
type.
Ceiling support
CAUTION
࡛ Make sure that the ceiling is strong enough to support
theweight of the indoorunit. Before hanging the unit,
test the strength of each attached suspension bolt.
࡛ If the length ofthe suspension bolt is more than1.5 m,
you are required to preventvibration.
࡛ If this is not possible, create an opening on the false
ceiling in orderto be able to use it to performthe
required operations onthe indoorunit.
4 Screweight nuts and washersto the suspension bolts,
making space forhanging the indoorunit.
CAUTION
࡛ You must install all of the suspension rods.
࡛ It is important to leave sufficient space in thefalse
ceiling to allowaccess formaintenance orrepairs to
the drainage pipe connection,the refrigerant pipe
connection, orto removethe unit if necessary.
5 Hang the indoorunit to the suspension bolts between
two nuts. Screwthe nuts to suspendthe unit.
1
2
2
6 Check the level of the indoorunit by using a leveler.
࡛ Atilt of the indoorunit may cause malfunction of a
built-in float switch andwaterleaks.
Level
7 Adjust the unitto the appropriate position,taking into
account the installation area forthe front panel.
࡛ Place the pattern sheet onthe indoorunit.
࡛ Adjust the space between the ceiling and the
indoorunit byusing a dimension gauge.
࡛ Fix the indoorunit securelyafteradjusting the level
of the unit byusing a leveller.
࡛ Removethe pattern sheet and installthe front
panel.
(Unit: mm)
Slim1way cassette
(Small,Wind-Free)
Indoorunit
Slim1way cassette
(Medium,Wind-Free)
Slim1way cassette
(Large,Wind-Free)
Airoutlet side
Jig
6.0 8.0
Ceiling
Airinlet side
Indoorunit
Airoutlet side
Jig
10 10
Ceiling
Airinlet side
Indoorunit
Airoutlet side
Jig
10 10
Ceiling
Airinlet side
Slim1way cassette
(Small)
Indoorunit
Slim1way cassette
(Medium)
Slim1way cassette
(Large)
Airoutlet side
Jig
16 18
Ceiling
Airinlet side
Indoorunit
Airoutlet side
Jig
15 15
Ceiling
Airinlet side
Indoorunit
Airoutlet side
Jig
15 15
Ceiling
Airinlet side

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InstallationProcedure
Step5 Purginginertgasfromthe
indoorunit
The indoorunit comeswith nitrogen gas (inert gas)
charged atthe factory. Therefore, all inert gas must be
purged before connecting the assemblypiping.
Unscrewthe pinchpipe at the endof each refrigerant
pipe.
Liquid side
Gas side
Insulator
NOTE
࡛ To prevent dirt orforeign objects from getting intothe
pipes during installation, do not remove the pinch pipe
completelyuntil you are ready to connect the piping.
Step6 Cuttingandflaringthepipes
1 Make sure thatyou havethe requiredtools available:
pipe cutter, reamer, flaringtool, and pipe holder.
2 Ifyou wishto shorten the pipes, cutthem with a pipe
cutter, ensuring thatthe cut edge remains at a 90°
angle to the side of the pipe. Referto the illustrations
belowforexamples of edges cut correctlyand
incorrectly.
Pipe cutter
Pipe Oblique Rough Burr
3 To prevent anygas from leaking out, remove all burrs
at the cut edge of the pipe, using a reamer.
4 Slide a flare nut on to the pipe and modifythe flare.
Pipe Flare
D
A
Flare
R 0.4 to 0.8 mm
D
L
90° ±2°
45° ±2°
OuterDiameter(D) Depth(A) Flaredimension(L)
Ø6.35 mm 1.3 mm 8.7 to 9.1 mm
Ø9.52 mm 1.8 mm 12.8 to13.2 mm
Ø12.70 mm 2.0 mm 16.2 to16.6 mm
Ø15.88 mm 2.2 mm 19.3 to19.7 mm
Ø19.05 mm 2.2 mm 23.6 to 24.0 mm
5 Check that the flaring is correct, referring to the
illustrations belowforexamples of incorrect flaring.
Correct Inclined Damaged
Surface Cracked Uneven
Thickness

12
InstallationProcedure
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InstallationProcedure
Step7 Connectingtheassemblypipes
totherefrigerantpipes
Therearetwo refrigerantpipes of differentdiameters:
࡛ A smallerone forthe liquid refrigerant.
࡛ A largerone forthe gas refrigerant. The inside of
copperpipe must be clean and has no dust.
1 Removethe pinch pipe on the pipes and connect the
assemblypipes to each pipe, tightening the nuts, first
manuallyand thenwith a torquewrench, a spanner
applying the following torque.
Torque
wrench
Flare nut
Spanner
Union
1
2
3
3
OuterDiameter(mm) ƟͱθαЇʪ࣑Ę࡛࣒
Ø6.35 14 to18
Ø9.52 34 to 42
Ø12.70 49 to 61
Ø15.88 68 to 82
Ø19.05 100 to120
(1 N࡛ߣߢ˝˙࡛ʀ࣒
NOTE
࡛ If the pipes must be shortened, see Step6 Cutting
andflaringthe pipes on page 11.
2 Be sure to use an insulatorthick enough to coverthe
refrigerant tube to protect the condensatewateron
the outside of the pipe falling onto the floorand to
improve the efficiencyof the unit.
3 Cut off anyexcessfoam insulation.
4 Make sure that there are no cracks orwaves on the
bent area.
5 Itwould be necessaryto double the insulation
thickness (10 mm ormore)to prevent condensation
even onthe insulatorwhen if the installed area is
warm and humid.
6 Do not use joints orextensions forthe pipes
connecting the indoorand outdoorunits. The only
permitted connections are those forwhich the units
are designed.
CAUTION
࡛ Connectthe indoorand outdoorunits using pipes
with flared connections (not supplied). Forthe lines,
use insulated, unwelded, degreased and deoxidized
copperpipe (Cu DHP type to ISO1337 orUNI EN12735-
1), suitable foroperating pressures of at least 4.2 MPa
and fora burst pressure of at least 20.7 MPa. Copper
pipe forhydro-sanitaryapplications is completely
unsuitable.
࡛ Forsizing and limits (height difference, line length,
max. bends, refrigerant charge, etc.) seethe outdoor
unit installation manual.
࡛ All refrigerant connection must be accessible, in order
to permit eitherunit maintenance orremoving it
completely.
࡛ If the pipes require brazing, make sure that oxygen
free nitrogen (OFN) is flowing through the system.
࡛ Nitrogen blowing pressure range is 0.02to 0.05 MPa.

13
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InstallationProcedure
Step8 Performingthegasleaktest
To identifypotential gas leaks on the indoorunit, inspect
the connection area of each refrigerant pipe using a leak
detectorforR-410A.
Before recreating thevacuum and recirculating the
refrigerant gas, pressurize thewhole systemwith
nitrogen (using a cylinderwith a pressure reducer) at a
pressure above 4.1 MPa in orderto immediatelydetect
leaks on the refrigerantfittings.
Madevacuum for15 minutes and pressurizing system
with nitrogen.
Liquid side
Gas side
Insulator
Step9 Insulatingtherefrigerantpipes
Onceyou have checkedthat there are no leaks in the
system,you can insulate the piping and hose.
1 To avoid condensation problems, place Acrylonitrile
Butadien Rubberseparatelyaround each refrigerant
pipe.
No gap
NBR (T13.0 orthicker)
NOTE
࡛ Always makethe seam of pipes face upwards.
2 Wind insulating tape around the pipes and drain hose
avoiding compressing the insulation too much.
3 Finishwrapping insulating tape aroundthe rest of the
pipes leading to the outdoorunit.
4 The pipes and electrical cables connectingthe indoor
unit with the outdoorunit must be fixed to the wall
with suitable ducts.
Insulation coverpipe
Insulation pipe
Be sure to overlap the insulation.
Indoorunit
CAUTION
࡛ Must fit tightlyagainst bodywithout any gap.
࡛ Install the insulation not to getwiderand use the
adhesives on the connection part of it to prevent
moisture from entering.
࡛ Wind the refrigerant pipewith insulation tape if it is
exposed to outside sunlight.
࡛ Install the refrigerant pipe respecting that the
insulation does not get thinneron the bent part or
hangerof pipe.
࡛ Add the additional insulation ifthe insulation plate
gets thinner.
Refrigerant pipe insulation
Hanger
Additional
insulation
a
a x 3
࡛ Must fit tightlyagainst bodywithout any gap.
࡛ All refrigerant connection must be accessible, in order
to permit eitherunit maintenance orremoval.

14
InstallationProcedure
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InstallationProcedure
5 Selectthe insulation of the refrigerant pipe.
࡛ Insulate the gas side and liquid side pipe, noting the insulationthickness that must differaccording to the pipe size.
࡛ Standard: Less than an indoortemperature of 30°C,with humidityat 85%. If installing in a high humidity
environment, use one grade thickerinsulatorby referring tothe table below. If installing in an unfavourable
environment, use thickerone.
࡛ The heat-resistancetemperature ofthe insulatormust be more than120°C.
Pipe Pipesize
(mm)
InsulationType(Heating/Cooling)
Remarks
Standard
[30°C,85%] Highhumidity [30°C,over85%]
EPDM,NBR
Liquid
pipe Ø6.35 to Ø9.52 9t 
Internal temperature
is higherthan120°C
Ø12.7 to Ø50.80 13t 
Gas pipe
Ø6.35 13t 19t
Ø9.52 to Ø25.40 19t 25t
Ø28.58 to Ø44.45 32t
Ø50.80 25t 38t
࡛ When installing insulation in the places and conditions
below, use the same insulation that is used forhigh
humidityconditions.
<Geologicalcondition>
High humiditylocations such as shorelines, hot springs,
lake orriversides, and ridges (when part of the building is
covered byearth and sand)
<Operationpurposecondition>
Restaurant ceiling, sauna, swimming pool etc.
<Buildingconstructioncondition>
Ceilings frequentlyexposedto moisture and cooling are
not covered. Forexample, pipes installed at a corridorof a
dormitoryand studio ornearan exit that opens and closes
frequently.
Places (where the pipes are installed) that are highly
humid due to a lack ofventilation.
࡛ Refrigerant pipe before EEVkit and MCU orwithout
EEVkit and MCU
ࣞYou can contactthe gas side and liquid side pipes
but the pipes should not be pressed.
ࣞWhen contacting the gas side and liquid side pipe,
use1 grade thickerinsulator.
࡛ Refrigerant pipe afterEEVkit and MCU
ࣞInstall the gas side and liquid side pipes, leave
10mm of space.
ࣞWhen contacting the gas side and liquid side pipe,
use1 grade thickerinsulator.

15
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InstallationProcedure
Step10 Installingthedrainhoseand
drainpipe
1 Fix the flexible hose to the drain pipe.
࡛ The connection port of the flexible hose and PVC drain
pipe must be fixedwith PVC adhesives.
Check out that the connected part doesn’t leak.
Drain hose PVCTubeJoint
+VP25 (OD:32 mm, ID: 25 mm)
VP 20 (Drain pipe)
(OD: 26mm, ID: 20mm)
2 Connectthe flexible hoseto the drain hose port.
࡛ Make sure that a rubberring is installed on the drain
hose port.
࡛ The drain hose port location differs depending on the
unit types.
Drain hose port
3 Coverthe flexible hosewith the provided insulation
drain.
Indoor
unit
Insulation drain
4 Install the drain pipe as shortlyas possible
(field supply).
5 Insulate thewhole drain pipe inside the building
(field supply).
Thewhole drain pipe must be insulatedwith 5t
(ormore) insulation to prevent condensation.
CAUTION
Checkthatthe indoorunitislevelwiththe ceilingby
usingtheleveller.
࡛ Ã˙ϩ˵ʪϑͱΧʪͱ˙ϩ˵ʪʒθɇΧΧʪϑʪϑϑϩ˵ɇߣࢩߣߢߢࡥɵʪϑЇθʪ
to install an airvent at thetop of each indoorunit to
preventwaterfrom flowing back to the unit.
ࣞ Ã˙ϩ˵ʪϑͱΧʪͱ˙ϩ˵ʪʒθɇΧΧʪϑߣࢩߣߢߢͱθͱθʪɇʒ
it is free from backward flowto the indoorunit, you
are not required to install an airvent.
Ceiling
Airventilation
࡛ If it is necessaryto increase the height ofthe drain
pipe, install the drain pipe straightwithin 300 mm
fromthe drain hose port. If it is raised higherthan 550
mm, there maybe waterleaks.
Band joint
300 mm
orless 20 mm
ormore
Ceiling
1/100 ormore
550 mm orless
Drain hose
࡛ Do not givethe hose an upward gradient beyond
the connection port. Thiswill cause waterto flow
backwardswhen the unit is stopped, resulting inwater
leaks.
Ceiling
Undergradient

16
InstallationProcedure
English
InstallationProcedure
࡛ Do not applyforce tothe piping on the unit side when
connecting the drain hose. The hose should not be
allowed to hang loose from its connection to the unit.
Fasten the hose to a wall, frame orothersupport as
close to the unit as possible.
Ceiling
Support pieces
1 to1.5 m
Slope of the horizontal drain pipe:
1/100 ormore
࡛ Install horizontally.
Indoorunit
Be horizontal
Flexible hose
࡛ Max. allowable aixs gap
Max. 20 mm
Indoorunit
࡛ Max. allowable bending angle
đɇу࢏ߥߢઘ
Indoorunit
NOTE
࡛ If a concentrated drain pipe is installed, referto the
figure below.
Centralized horizontal drain pipe
(more than1/100 slope)
Main drain pipe
Full thread bolt hanger 1000 to1500 mm
550 mm or
less
200 mm
ormore
Individual
airvent Main airvent
(must be installed)
࡛ If 3 ormore units are installed, installthe main airvent
at the front of the farthest indoorunit from the main
drain pipe.
࡛ To preventwaterfrom flowing back to indoorunits, install
an individual airvent at the top of each indoorunit.
ࣞThe airvents should be Tor7 shaped to prevent
dust orforeign substances from entering.
ࣞYou maynot need to install airvent if the
horizontal drain pipe is in properslope.
Step11 Performingthedrainagetest
1 Do a leaktest atthe connection part of theflexible
hose and the drain pipe:
a Connect a general hose tothe connection part of
the flexible hose of the indoorunit, and pourin
somewater.
Hose Flexible hose
Waterleakage
check part

17
English
InstallationProcedure
b Afterpouring somewater, reassemble the rubber
cap on the connection part of a flexible hose of
the indoorunit and firmlytighten itwith a band to
prevent leakage.
c Check the leaktest atthe partwhere the adhesive
forthe flexible hose and the drain pipe is used.
CAUTION
࡛ The leak test must be performedforat least 24 hours.
2 Check the condensed waterdrainage:
a ťͱЇθɇɵͱЇϩߣএͱ˙иɇϩʪθϩͱϩ˵ʪʒͱͱθЇϩʒθɇ
pan as shown in the picture.
b When the electric cable connection is completed
࡛ Turn on the indoorunit and outdoorunit.
࡛ Operate inthe Cool mode.
CAUTION
࡛ Onlyin the Cool mode,you can check the correct
operation of the drain pump.
When the electric cable connection has not been
completed
࡛ Removethe control box coverof the indoorunit.
࡛ Connectthe powersupplyto the Land N terminals.
࡛ Reassemble the control box coverand turn on the
indoorunit.
CAUTION
࡛ When the float switch is not detected due to
insufficientwateron the drain pan, the drain
pumpwill not work.
࡛ If the powersupplyis directlyconnected to the L
and N terminals, communication errormessage
might appear.
࡛ Aftercompleting the drainage check, turn the unit
off and disconnect the powersupply.
࡛ Reassemble the control box cover.
c Checkwhetherthe drain pumpworks correctly.
d Checkwhetherthe drainage is performing
correctlyat the end of the drain pipe.
e Check forleakage atthe drain pipe and drain pipe
connection part.
f When leakage occurs, checkwhetherthe indoor
unit is level and check the drain hose connection
part, drainpipe connection part and drain pump
connection.
g When the drainage check is completed and
the condensedwaterremains onthe drain pan,
remove thewater.
Step12 Connectingthepowerand
communicationcables
Powerandcommunicationcableconnection
࡛ Beforewiring work,you must turn off all powersource.
࡛ Connectthe powerand communication cable among
the unitswithin maximum length to set thevoltage
drop under10%.
࡛ The auxiliary circuit breaker(ELCB, MCCB, ELB) should
be considered more capacity if manyindoorunits are
connected from one breaker.
࡛ Connect F3, F4(forcommunication) to the
communication cable of thewired remote control.
࡛ Tighten the electricwireswith a propertoolwithin the
torque limit to connect and fix them firmly, and then
organize thewires to prevent outside pressure being
exerted on the covers and otherparts. Failureto do so
mayresult in overheating, electric shock, and fire.
Ɵ˝˵ϩʪ˝ϩͱθαЇʪ࣑Ę࡛࣒
M3.5 0.8 ~1.2
M4 1.2 ~1.8
࣑ߣĘ࡛ߣߢ˝˙࡛ʀ࣒

18
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InstallationProcedure
࡛ To protect the product fromwaterand possible shock,
you should keep the powerand the communication
cables ofthe indoorand outdoorunits in the iron pipe.
࡛ Connectthe powercabletothe auxiliary circuit
breaker(ELCB, MCCB, ELB).
࡛ Keep distances of 50mm ormore between powercable
and communication cables.
࡛ Powersupplycords of parts of appliances foroutdoor
use shall not be lighterthan polychloroprene sheathed
˙ʪуɵʪʀͱθʒ࢏࣑Aͱʒʪʒʪϑ˝ɇϩͱÃkAࡤߨߢߤߦߧÃkAߧߩࢩ
AkĘkøkAࡤ²ߢߧŵĘࣛͱθÃkAࡤߨߢߤߦߧÃkAߨߨࢩAkĘkøkAࡤ
H07RN-F)
࡛ Screws on terminal block must not be unscrewedwith
ϩ˵ʪϩͱθαЇʪʪϑϑϩ˵ɇߣߤ˝˙࡛ʀ࢏
࡛ When installing the indoorunit in a computerroom,
Їϑʪϩ˵ʪʒͱЇɵʪϑ˵ʪʒʪʒ࣑ϩɇΧʪɇЇЇࢩΧͱцʪϑϩʪθ
braid + copper) cable of FROHH2Rtype.
220~240V~
OutdoorUnit
ELB
MCCB
IndoorUnit1 IndoorUnit 2 IndoorUnit 3
IndoorUnit 4 IndoorUnit 5 IndoorUnit 6
࢜ELB : Essential Installation
࢜Ceiling, wall-mounted indoorunit.
EEVkit
Wired Remote
Control
Selectingthe crimpingterminallug
1 Selectthe crimping terminal lug based on the norminal dimension of the powercable.
2 Coverthe connection part of the powercable and crimpingterminal lug to insulate it.
Silversolder
FE
L
D
d1
B
d2
t
B
2
R

19
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InstallationProcedure
Norminal
dimensions
forcable
(mm²)
Norminal
dimensions
forscrew
(mm)
BDd1EFLd2t
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm) Min. Min. Max. Standard
dimension
(mm)
Allowance
(mm) Min.
1.5 46.6 ± 0.2 3.4 +0.3
-0.2 1.7 ± 0.2 4.1 6 16 4.3 +0.2
00.7
48
2.5 46.6 ± 0.2 4.2 +0.3
-0.2 2.3 ± 0.2 6 6 17.5 4.3 +0.2
00.8
48.5
449.5±0.25.6
+0.3
-0.2 3.4 ± 0.2 6 5 20 4.3 +0.2
00.9
Specificationsoftheterminalblocks
(Unit: mm)
AC power: M4 screw Communication: M3.5 screw
11
13
7.5 9.0
18
13.8
Powersupply
(singlephase) MCCB ELB
Min :198V
Max : 242V XA XA, 30 mA
0.1 s
Powercable Earth cable Communication
cable
2.5 mm² ormore 2.5 mm² 0.75to1.5 mm²
Decide the powercable specification and maximum
length byformula 2.
1 Decide the capacityof ELB and MCCB bybelow
formula.
Ɵ˵ʪʀɇΧɇʀϩцͱ˙kø9ࡥđAA9ǹࣈࣉߣ࢏ߤߧǹߣ࢏ߣǹנ
NOTE
࡛ X : The capacityof ELB, MCCB
࡛ נࡤƊЇͱ˙θɇϩ˝ʀЇθθʪϩϑͱ˙ʪɇʀ˵ʒͱͱθЇϩ࢏
Ratedcurrents
Model Ratingcurrent(A)
đߢߣߩĘĘߣťk² 0.14
đߢߤߤĘĘߣťk² 0.15
đߢߤߤĘĘߣUk² 0.20
đߢߤߪĘĘߣUk² 0.23
đߢߥߨĘĘߣUk² 0.25
đߢߧߨĘĘߣUk² 0.28
đߢߩߣĘĘߣUk² 0.40
đߢߤߤĘĘߣUç² 0.16
đߢߤߪĘĘߣUç² 0.17
đߢߥߨĘĘߣUç² 0.20
đߢߤߤĘĘߣUk²ߤ 0.16
đߢߤߪĘĘߣUk²ߤ 0.17
đߢߥߨĘĘߣUk²ߤ 0.20
2 Decide the powercable specification and maximum
lengthwithin10%voltage drop among indoorunits.
n
Coef×35.6×Lk × ik) <10% ofinputvoltage[V]
࣑ 1000×Ak
k=1
NOTE
࡛ Coef:1.55
࡛ Lk: Distance among each indoorunit[m],Ak: Power
cable specification[mm
2
]
࡛ ik: Running current of each unit[A]

20
InstallationProcedure
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InstallationProcedure
Exampleof Installation
ƟͱϩɇΧͱиʪθʀɇɵʪʪ˝ϩ˵øߣߢߢ࣑࣒ࡥÃϩɇΧЇࣛʀЇθθʪϩߣߢࣈࣉࡥŵЇ˝ʀЇθθʪϩͱ˙ʪɇʀ˵ЇϩϑߣࣈࣉࡥƟͱϩɇߣߢʒͱͱθ
unitswere installed
or
10 [A]
ELCB
MCCB+ELB 9 [A] 1 [A]
0[m] 10[m] 20[m] 100[m]
Indoorunit1 Indoorunit 2 Indoorunit
࡛ Applyfollowing equation.
n
Coef×35.6×Lk×ik
࣑ ) < 10%ofinputvoltage[V]
k=1
1000×Ak
࡛ Calculation
ࣞInstalling with1 sortwire.
2.5 [mm
2
]2.5 [mm
2
]
-2.2 [V] -2.0 [V]
220 [V]
-(2.2+2.0+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-11.2 [V]
208.8 [V] :
Applicable
Within198V
to 242V
······· 2.5 [mm
2
] ·······
ࣞInstalling with 2 different sortwire.
4.0 [mm
2
]4.0 [mm
2
]
-1.4 [V] -1.2 [V]
220 [V]
-(1.4+1.2+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-10.5 [V]
209.5 [V] :
Applicable
Within198V
to 242V
······· 2.5 [mm
2
] ·······
CAUTION
࡛ Select the powercable in accordance with relevant
local and national.
࡛ Wire size must complywith local and national code.
࡛ You should connect the powercable into the power
cableterminal andfasten itwith a clamp.
࡛ The unbalanced powermust be maintainedwithin10%
of supplyrating amongwhole indoorunits.
࡛ If the poweris unbalanced greatly, it mayshorten
the life of the condenser. If the unbalanced poweris
exceeded over10% of supplyrating, the indoorunit is
protected, stopped andthe errormode indicates
࡛ Connectthepowercabletothe auxiliarycircuitbreaker.
Anall poledisconnectionfromthepowersupplymustbe
ʀͱθΧͱθɇϩʪʒϩ˵ʪ˙уʪʒиθ˝࣑ߥ࣒࢏
࡛ You must keepthe cable in a protectiontube.
࡛ Maximum length of powercables are decidedwithin
10% of powerdrop. If it exceeds,you must consider
anotherpowersupplying method.
࡛ The circuit breaker(MCCB, ELB) should be considered
more capacityif many indoorunits are connected from
one breaker.
࡛ Use round pressure terminal forconnections to the
powerterminal block.
࡛ Forwiring, use the designated powercable and
connect it firmly, then secure to prevent outside
pressure being exerted on theterminal board.
࡛ Use an appropriate screwdriverfortightening the
terminal screws.A screwdriverwith a small head will
strip the head and make propertightening impossible.
࡛ Over-tightening the terminal screws maybreak them.
Step13 Optional:Extendingthepower
cable
1 Prepare the following tools.
Tools Spec Shape
Crimping pliers MH-14
Connection
sleeve (mm) 20xØ6.5 (HxOD)
Insulation tape Width19
mm
Contraction tube
(mm) 70xØ8.0 (LxOD)