Samsung AM NN1DCH Series User manual

Airconditioner
Installationmanual
AM***NN1DCH
• Thankyou forpurchasing this Samsung airconditioner.
• Before operating this unit, please read this manual carefullyand retain it forfuture
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 7
Step 4 Installing the indoorunit 7
Step 5 Purging inert gas from the indoorunit 9
Step 6 Cutting and flaring the pipes 9
Step 7 Connecting the assemblypipes tothe refrigerant pipes 10
Step 8 Performing the gas leaktest 11
Step 9 Insulating the refrigerant pipes 11
Step10 Installing the drain hose and drain pipe 13
Step11 Performing the drainage test 14
Step12 Connectingthe powerand communication cables 16
Step13 Optional: Extending the powercable 19
Step14 Setting the indoorunit addresses andthe installation options 21
Performingfinal check and trial operation 40
Appendix 41
Troubleshooting 41

3
English
SafetyInformation
SafetyInformation
WARNING
• Cancerand Reproductive Harm -www.P65Warnings.
ca.gov.
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 of this 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 following warnings.
• 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 thewarranty.
• Theairconditionershouldbeusedonlyfortheapplicationsfor
whichithasbeendesigned:theindoorunitisnotsuitableto
beinstalledinareasusedforlaundry.
• Donotusethe unitsifdamaged.Ifproblemsoccur,switch
theunitoffanddisconnectitfromthepowersupply.
• In orderto prevent electric shocks, fires orinjuries,
always stopthe unit, disablethe 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. Atthe end of its
life cycle,the airconditionermust be disposed of in
authorized centres orreturnedto the retailerso that it
can be disposed of correctlyand safely.
• Wearprotectiveequipment (suchassafetygloves,goggles,
andheadgear)duringinstallationand maintenanceworks.
Installation/repairtechniciansmaybeinjuredifprotective
equipmentisnotproperlyequipped.

4
SafetyInformation
English
SafetyInformation
Installingtheunit
WARNING
IMPORTANT:When installingthe unit,alwaysremember
toconnectfirsttherefrigeranttubes,thenthe electrical
lines.
• Always disassemble the electric lines before the
refrigerant tubes.
• Upon receipt, inspectthe 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.)
• Aftercompleting the installation, always carryout a
functional test and provide the instructions on howto
operatethe airconditionerto the user.
• Do not use the airconditionerin environmentswith
hazardous substances orclose to equipmentthat
release free flames to avoid the occurrence of fires,
explosions orinjuries.
• Ourunits must be installed in compliancewith the
space specifications presented in the 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 installthe 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 connected to the same
electric lines.
• Alwaysverifythat the cut-off and protection switches
are suitablydimensioned.
• Verifythat the air conditioneris connected to the
powersupplyin accordancewith 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. Alwaysverify that all
connections complywith the standards applicable to
the installation of airconditioners.
• Devices disconnected from the powersupplyshould
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
Makesurethatyou earththecables.
• Do not connect the earthwire to the gas pipe,water
pipe, lighting rod ortelephonewire. If earthing is not
complete, electric shock orfire mayoccur.
Installthe circuitbreaker.
• If the circuit breakeris not installed, electric shock or
fire mayoccur.
Makesurethatthe condensedwaterdrippingfromthe
drainhose runs outproperlyand safely.
Install thepowercable and communication cable of
the indoorand outdoorunit at least1m away from the
electricappliance.
Install theindoorunit awayfrom lighting apparatus
usingthe ballast.
• If you use the wireless remote control, reception error
mayoccurdue to the ballast ofthe lighting apparatus.

5
English
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
Bushingbracket
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 polyethylenefoam 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 airconditionermaybe 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, carbonfibre orflammable dust.
• The placewhere thinnerorgasoline is handled. Gas
mayleak and it maycause fire.

6
InstallationProcedure
English
InstallationProcedure
Indoorunit dimensions
Slim1waycassette(Medium) Unit : mm(inch)
410(16-1/8)
145(5-11/16)
34(1-3/8)
22(7/8)
46(1-13/16)
50(1-15/16)
77(3-1/16)
970(38-3/16)
80(3-1/8)
A B
500(19-11/16)
1198(47-3/16)
Ceiling
1150(45-1/4) (Ceiling openingdimension)
249(9-11/16)
(Space of suspension bolts)
440(17-5/16)
(Ceilingopening dimension)
1036(40-11/16) (Spaceof suspensionbolts)
Model AM007NN1DCH* AM009NN1DCH*
AM012NN1DCH*
Amm 130(5-1/8")
Bmm 179(7-1/16")
Liquidpipe connection mm Ø6.35(1/4")
Gaspipe connection mm Ø12.70(1/2")
Drainhoseconnection mm VP20 (outerdiameter: Ø26(1"), innderdiameter: 20(13/16"))

7
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InstallationProcedure
Spacingrequirements
Unit : mm(inch)
1500(59) ormore
150(5.9) ormore150(5.9) ormore
150(5.9) 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 on the cornerand
carrythe indoorunit.
Step3 Optional:Insulatingthebodyof
theindoorunit
Ifyou install a cassette type indoorunit on the ceiling
when temperature is over27°C (80.6°F) and humidityis
over80%, you must applyan extra10mm (3/8 inch) thick
polyethylene insulation ora similartype of insulation to
the bodyof the indoorunit.
Cut away the partwhere 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 indoorunit.
NOTE
• Since the diagram is made of paper, it may shrink
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 in figure.
Concrete
Hole in anchor
Hole in plug
Suspension bolt (ø9.52(3/8") orM10)
Insert

8
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 than
1.5m (4.92 ft), you are required to preventvibration.
• If this is not possible, create an opening onthe false
ceiling in orderto be able to use itto 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 install the front
panel. Unit : mm(inch)
Slim1way cassette
(Medium,Wind-Free)
Indoorunit
Airoutlet side
Jig
10(3/8) 10(3/8)
Ceiling
Airinlet side
Slim1way cassette
(Medium)
Indoorunit
Airoutlet side
Jig
15(5/8) 15(5/8)
Ceiling
Airinlet side

9
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InstallationProcedure
Step5 Purginginertgasfromthe
indoorunit
The indoorunit comeswith nitrogen gas (inert gas)
charged atthefactory. Therefore, all inert gas must be
purged before connecting the assemblypiping.
Unscrewthe pinch pipeat 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
completely untilyou are readyto connect the piping.
Step6 Cuttingandflaringthepipes
1 Make sure thatyou have the required tools available:
pipe cutter, reamer, flaring tool, and pipe holder.
2 Ifyou wish to shorten the pipes, cut themwith a pipe
cutter, ensuring that the cut edge remains at a 90°
angle to the side of the pipe. Referto the illustrations
belowforexamples of edges cut correctly and
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°
(0.016 to 0.032 inch)
OuterDiameter(D) Depth(A) Flaredimension(L)
mm inch mm inch mm inch
Ø6.35 1/4 1.3 0.051 8.7to 9.1 0.34 to 0.36
Ø9.52 3/8 1.8 0.071 12.8 to13.2 0.50 to 0.52
Ø12.70 1/2 2.0 0.079 16.2 to16.6 0.64 to 0.65
Ø15.88 5/8 2.2 0.087 19.3 to19.7 0.76 to 0.78
Ø19.05 3/4 2.2
0.087 23.6 to 24.0 0.93 to 0.94
5 Check that the flaring is correct, referring to the
illustrations belowforexamples of incorrect flaring.
Correct Inclined Damaged
Surface Cracked Uneven
Thickness

10
InstallationProcedure
English
InstallationProcedure
Step7 Connectingtheassemblypipes
totherefrigerantpipes
Therearetwo refrigerantpipesof 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) Torque(Nࡻm)
mm inch mm lbf.ft
Ø6.35 1/4 14 to18 10.3 to13.3
Ø9.52 3/8 34 to 42 25.1 to 31.0
Ø12.70 1/2 49 to 61 36.1to 45.0
Ø15.88 5/8 68 to 82 50.2 to 60.5
Ø19.05 3/4 100 to120 73.8 to 88.5
࣑ߣĘࡻߣߢ˝˙ࡻʀ࣒
NOTE
• If the pipes must be shortened, see Step6 Cutting
andflaring the pipes on page 9.
2 Be sureto use an insulatorthick enough to coverthe
refrigerant tube to protect the condensate wateron
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 (3/8 inch) ormore) to prevent
condensation even onthe insulatorwhen if the
installed area iswarm 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
• Connect the indoorand outdoorunits using pipes
with flared connections (not supplied). Forthe lines,
use insulated, unwelded, degreased and deoxidized
copperpipe (Cu DHP type to ISO1337 orUNI EN
12735-1), suitable foroperating pressures of at least
4.2MPa (609.2 psig) and fora burst pressure of at least
20.7MPa (3002.3 psig). Copperpipe forhydro-sanitary
applications is completelyunsuitable.
• 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 0.02 to 0.05 MPa
(2.9 to 7.3 psig).

11
English
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 4.1MPa (594.7 psig) in orderto
immediatelydetect leaks on the refrigerant fittings.
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, placeAcrylonitrile
Butadien Rubberseparatelyaround each refrigerant
pipe.
No gap
NBR (T13.0 (1/2") orthicker)
NOTE
• Always makethe seam of pipesface 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 connecting the indoor
unitwith the outdoorunit must be fixed to thewall
with suitable ducts.
Insulation coverpipe
Insulation pipe
Be sure to overlap the insulation.
Indoorunit
CAUTION
• Must fit tightlyagainst bodywithout anygap.
• 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.

12
InstallationProcedure
English
InstallationProcedure
5 Selectthe insulation ofthe refrigerant pipe.
• Insulate the gas side and liquid side pipe, noting the insulation thicknessthat must differaccording tothe pipe size.
• Standard: Less than an indoortemperature of 30°C (86°F), with humidityat 85%. If installing in a high humidity
environment, use one grade thickerinsulatorby referring to the table below. If installing in an unfavourable
environment, use thickerone.
• The heat-resistance temperature of the insulatormust be morethan120°C (248°F).
Pipe Outerdiameter
InsulationType(Cooling,Heating)
Remarks
General
[30°C(86°F),85%]
Highhumidity
[30°C(86°F),over85%]
kťUđࡥĘ9ŵ
mm inch mm inch mm inch
Liquidpipe 6.35~9.52 1/4~3/8 9 3/8 9 3/8
Heating resisting
temperatureover
120°C(248°F)
12.7~50.80 1/2~2 13 1/2 13 1/2
Gaspipe
6.35 1/4 13 1/2 19 3/4
9.52~25.4 3/8~1 19 3/4 25 1
28.58~44.45 11/8~1 3/4 19 3/4 32 11/4
50.8 22513811/2
• 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 frequently exposed to 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
10 mm (3/8") of space.
– When contacting the gas side and liquid side pipe,
use1 grade thickerinsulator.

13
English
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)
(OD:1-1/16", ID: 3/4")
(OD:1-1/4", ID:1")
2 Connecttheflexible 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 insidethe building
(field supply).
Thewhole drain pipe must be insulatedwith 5t
(ormore) insulation to prevent condensation.
CAUTION
Check that the indoorunit is levelwith the ceiling by
using the leveller.
• Install airventilation to drain condensation smoothly.
Ceiling
Airventilation
• If it is necessaryto increase the height ofthe drain
pipe, install the drain pipe straightwithin 300mm
(11-13/16 inch) fromthe drain hose port. If it is raised
higherthan 500mm (21-5/8 inch),there maybe water
leaks.
Band joint
300
(11-13/16)
orless 20 (13/16) or
more
Ceiling
1/100 ormore
550 (21-5/8) orless
Drain hose
Unit:mm(inch)
• Do not givethe hose an upward gradient beyond
the connection port. This will causewaterto flow
backwardswhen the unit is stopped, resulting inwater
leaks.
Ceiling
Undergradient

14
InstallationProcedure
English
InstallationProcedure
• Do not applyforce tothe piping onthe unit sidewhen
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
(3.28~4.92 ft)
Slope of the horizontal drain pipe:
1/100 ormore
• Install horizontally.
Indoorunit
Be horizontal
Flexible hose
• Max. allowable aixs gap
Max. 20 mm (13/16 inch)
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
550 (21-5/8)
orless
200 (7-7/8)
ormore
Individual
airvent Main airvent
(must be installed)
Unit:mm(inch) 1 to1.5 m (3.28~4.92 ft)
• If 3 ormore units are installed, install the main airvent
at the front of the farthest indoor unit 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 substancesfrom entering.
– You maynot need to install airvent ifthe horizontal
drain pipe is in properslope.
Step11 Performingthedrainagetest
1 Do a leaktest at the connection part of the flexible
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

15
English
InstallationProcedure
b Afterpouring somewater, reassemble the rubber
cap on the connection part of a flexible hose of
the indoorunit and firmlytighten it with a bandto
prevent leakage.
c Check the leak test at the part where the adhesive
forthe flexible hose and the drain pipe is used.
CAUTION
• The leak test must be performed forat 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 Nterminals.
• 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,turnthe 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.
Bushingbracketinstallation
IF the condult tube is used, bracket must be installed as
shown in the picture to fix the conduit tube.
< 1 conduit tube > < 2 conduit tube >
NOTE
• Please follownational and local electrical codes.
Additional electrical connection components maybe
required.

16
InstallationProcedure
English
InstallationProcedure
Step12 Connectingthepowerand
communicationcables
Powerand communicationcableconnection
• 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 propertool withinthe
torque limit to connect and fix them firmly, and then
organize thewires to prevent outside pressure being
exerted on the covers and otherparts. Failure to do so
mayresult in overheating, electric shock, and fire.
Tighteningtorque
Ęࡻ lbf.ft
M3.5 0.8 to1.2 0.59 to 0.89
M4 1.2 to1.8 0.89 to1.1
࣑ߣĘࡻߣߢ˝˙ࡻʀ࣒
• To protect the product fromwaterand possible shock,
you should keep the powerand the communication
cables ofthe indoorand outdoorunits in the iron pipe.
• Connectthe powercable to the auxiliarycircuit
breaker(ELCB, MCCB, ELB).
• Keep distances of 50 mm (1-15/16 inch) ormore
between powercable and communication cables.
• Powersupplycords of parts of appliances foroutdoor
use shall not be lighterthan polychloroprene sheathed
flexible cord. (Code designation IEC:60245 IEC 57 /
CENELEC: H05RN-F orIEC:60245 IEC 66 / CENELEC:
H07RN-F)
• Screws on terminal block must not be unscrewedwith
the torque lessthan12 kgf•cm (0.87 lbf·ft).
• When installing the indoorunit in a computerroom,
use the double shielded (tape aluminum / polyester
braid + copper) cable of FROHH2R type.
208-230V
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

17
English
InstallationProcedure
Selectingthe crimpingterminallug
1 Selectthe crimpingterminal 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
Norminaldimensionsforcable [mm2(inch2)] 1.5 (0.002) 2.5 (0.003) 4 (0.006)
Norminaldimensionsforscrew[mm(inch)] 4 (0.15") 4 (0.15") 4 (0.15") 4 (0.15") 4 (0.15")
BStandarddimension [mm(inch)] 6.6 (0.25") 8.0 (0.31") 6.6 (0.25") 8.5 (0.33") 9.5 (0.37")
Allowance[mm(inch)] ±0.2 (±0.007") ±0.2 (±0.007") ±0.2 (±0.007")
DStandarddimension [mm(inch)] 3.4 (0.13") 4.2 (0.16") 5.6 (0.22")
Allowance[mm(inch)] +0.3 (+0.011")
-0.2 (-0.007") +0.3 (+0.011") -0.2 (-0.007") +0.3 (+0.011") -0.2 (-0.007")
d1 Standarddimension [mm(inch)] 1.7 (0.06") 2.3 (0.09") 3.4 (0.13")
Allowance[mm(inch)] ±0.2 (±0.007") ±0.2 (±0.007") ±0.2 (±0.007")
E Min.[mm(inch)] 4.1 (3/16") 6 (1/4") 6 (1/4")
F
Min.[mm(inch)] 6 (1/4") 6 (1/4") 6 (1/4")
L
Max.[mm(inch)] 16 (5/8") 17.5 (3/4") 20 (3/4")
d2 Standarddimension [mm(inch)] 4.3 (0.16") 4.3 (0.16") 4.3 (0.16")
Allowance[mm(inch)] +0.2 (+0.007")
0 (0") +0.2 (+0.007") 0 (0") +0.2 (+0.007") 0 (0")
t
Min.[mm(inch)] 0.7 (0.02") 0.8 (0.03") 0.9 (0.035")

18
InstallationProcedure
English
InstallationProcedure
Specificationsoftheterminalblocks
Unit : mm(inch)
AC power: M4 screw Communication: M3.5 screw
11 (7/16)
13 (1/2)
7.5 (5/16) 9.0 (3/8)
13.8 (9/16)
18 (11/16)
Powersupply
(singlephase) MCCB ELB
Min :187V
Max : 253V XA XA, 30 mA
0.1 s
Powercable Earth cable Communicationcable
2.5 mm²
(0.004 inch²) 0.75~1.5 mm² (0.0011~0.0023 inch²)
Decide the powercable specification and maximum
length byformula 2.
1 Decide the capacity of 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)
AM007NN1DCH* 0.23
AM009NN1DCH* 0.25
AM012NN1DCH* 0.28
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[mm²(inch²)]
• ik: Running current of each unit[A]
Exampleof Installation
ƟͱϩɇΧͱиʪθʀɇɵʪʪ˝ϩ˵øߣߢߢ࣑ߥߤߪ࢏ߢߪ˙ϩ࣒ࡥÃϩɇΧЇࣛ
ʀЇθθʪϩߣߢࣈࣉࡥŵЇ˝ʀЇθθʪϩͱ˙ʪɇʀ˵Їϩϑߣࣈࣉࡥ
Total10 indoorunitswere installed
or
10 [A]
ELCB
MCCB+ELB 9 [A] 1 [A]
0[m] 10[m](32.8 ft) 20[m](65.62 ft) 100[m](328 ft)
Indoorunit1 Indoorunit 2 Indoorunit10
• Applyfollowing equation.
n
Coef×35.6×Lk×ik
࣑ ) < 10%of inputvoltage[V]
k=1
1000×Ak

19
English
InstallationProcedure
• Calculation
– Installing with1 sort wire.
2.5[mm²]
(0.004 inch²)
-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
Within187V
to 253V
······· 2.5[mm²] (0.004 inch²) ·······
2.5[mm²]
(0.004 inch²)
– Installing with 2 different sortwire.
4.0[mm²]
(0.006 inch²)
-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
Within187V
to 253V
······· 2.5[mm²] (0.004 inch²) ·······
4.0[mm²]
(0.006 inch²)
CAUTION
• Selectthe powercable in accordancewith relevant
local and national.
• Wire size must complywith local and national code.
• You should connectthe powercable intothe power
cableterminal and fasten itwith a clamp.
• The unbalanced powermust be maintained within10%
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
• Connectthe powercabletotheauxiliarycircuitbreaker.
Anall poledisconnectionfromthe powersupplymustbe
ʀͱθΧͱθɇϩʪʒϩ˵ʪ˙уʪʒиθ˝ࣈߥ࣑ߣࢩߪ࢕࣒ࣉ࢏
• 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(inch)] 20xØ6.5
(0.79xØ0.26)
(HxOD)
Insulation tape
[mm(inch)] Width19 (0.75)
Contraction tube
[mm(inch)] 70xØ8.0
(2.76xØ0.32)
(LxOD)
2 As shown in thefigure, peel offthe shields from the
rubberand wire of the powercable.
• Peel off 20 mm (0.79 inch) of cable shields from the
pre-installed tube.
20
(0.79) 20
(0.79) Pre-installed
tube forthe
powercable
20
(0.79)
60 (2.36)
120 (4.72) 180 (7.09)
20
(0.79) 20
(0.79) 20
(0.79)
[mm(inch)]
60 (2.36)
120 (4.72)
180 (7.09)
Powercable

20
InstallationProcedure
English
InstallationProcedure
CAUTION
• Forinformationabout thepowercablespecificationsfor
indoorand outdoorunits, refertothe installation manual.
• Afterpeeling off cablewiresfrom the pre-installed
tube, insert a contractiontube.
3 Insert both sides of corewire of the powercable into
the connection sleeve.
• Method1: Push the corewire into the sleeve from
both sides.
• Method2: Twist the wire cores togetherand push it
into the sleeve.
Method1
Connection sleeve Connection sleeve
Method 2
CAUTION
• If cablewires are connectedwithout using connecting
sleeves, theircontact area becomes reduced, or
corrosion develops onthe outersurfaces of thewires
(copperwires) overa long time. This maycause an
increase of resistance (reduction of passing current)
and consequentlymayresult in a fire.
4 Using a crimping tool, compress the two points and
flip it overand compress anothertwo points in the
same location.
• The compression dimension should be 8.0.
Compression
dimension
• Aftercompressing it, pull both sides of thewire to
make sure it is firmlypressed.
Compress it 4 times. Compress it 4 times.
5 (0.20) 5 (0.20)
[mm(inch)]
Method1 Method 2
5 Wrap itwith the insulation tape twice ormore and
position yourcontraction tube in the middle of the
insulation tape.
Insulation tape
[mm(inch)]
Insulation tape
40 (1.57) 35 (1.37)
Method1 Method 2
6 Apply heat to the contraction tube to contract it.
Method1
Contraction tube Contraction tube
Method 2
7 Aftertube contractionwork is completed,wrap itwith
the insulation tape to finish.
Three ormore layers of insulation are required.
Method1
Insulation tape Insulation tape
Method 2
CAUTION
• Make sure that the connection parts are not exposed
to outside.
• Be sure to use insulation tape and a contraction tube
made of approved reinforced insulating materials
that havethe same level ofwithstand voltagewith
the powercable. (Complywith the local regulations on
extensions.)
WARNING
• In case of extending the electricwire, please DO NOT
use a round-shaped Pressing socket.
– Incompletewire connections can cause electric
shock ora fire.