Samsung Actn4peh series User manual

Airconditioner

Installationmanual

AC***TN4PEH

• Thank you forpurchasing this Samsung airconditioner.

• Before operating this unit, please read this manual carefully and retain itforfuture reference.

DB68-09512A-00

2English

Contents

SafetyInformation 3

InstallationProcedure 6

Installation Procedure 6

Step1 Checking and preparing accessories 6

Step 2 Choosing the installation location 6

Step 3 Optional: Insulating the bodyof the indoorunit 8

Step 4 Installing the indoorunit 9

Step 5 Purging inert gas fromthe indoorunit 10

Step 6 Cutting and flaringthe pipes 10

Step 7 Connecting the assemblypipes to the refrigerant pipes 11

Step 8 Performing the gas leak test 11

Step 9 Insulating the refrigerant pipes 12

Step10 Installing the drain hose and drain pipe 13

Step11 Performing the drainage test 15

Step12 Connecting the powerand communication cables 16

Step13 Optional: Extending the powercable 17

Step14 Setting the indoorunit addresses and the installation options 19

Appendix 31

Troubleshooting 31

English

SafetyInformation

WARNING

• Hazards orunsafe practicesthat may result in severe

personal injuryordeath.

CAUTION

• Hazards orunsafe practicesthat may result in minor

personal injuryorpropertydamage.

• Carefully followthe precautions listed belowbecause

theyare essential to guaranteethe safety of the

equipment.

WARNING

• Always disconnect the airconditionerfrom the 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

• Carefully read the content of this manual before installing

the airconditionerand store the 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 newownerif

the airconditioneris sold ortransferred.

• This manual explains howto install an indoorunitwith a

split systemwith two SAMSUNG units. The use of other

types of unitswith different control systems maydamage

the units and invalidate thewarranty. The manufacturer

shall not be responsible fordamages arising from the use

of non compliant units.

• The manufacturershall not be responsible fordamage

originating from unauthorized changes orthe improper

connection of electric and requirements set forth in the

Operating limits table, included inthe manual, shall

immediately invalidate thewarranty.

• The airconditionershould be used onlyforthe

applications forwhich it has been designed: the indoor

unit is not suitable to be installed in areas used for

laundry.

• Do not use the units if damaged. If problems occur, switch

the unit off and disconnect it from the powersupply.

• In orderto prevent electric shocks, fires orinjuries, always

stop the unit, disablethe protection switch and contact

SAMSUNG’s technical support if the unit produces smoke,

if the 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 byqualified personnel

only.

• The unit contains moving parts,which should always be

kept out of the reach of children.

• Do not attempt to 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 accordance

with 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 authorised

centres orreturned to the retailerso that it can be

disposed of correctly and safely.

• Wearprotective equipment (such as safetygloves,

goggles, and headgear) during installation and

maintenanceworks. Installation/repairtechnicians may be

injured if protective equipment is not properly equipped.

• Do not use means to accelerate the defrost operation orto

clean, otherthan those recommended by Samsung.

• Do not pierce orburn.

• Be aware that refrigerants may not contain an odour.

SafetyInformation

English

SafetyInformation

Installingtheunit

WARNING

IMPORTANT:Wheninstallingtheunit,always rememberto

connectfirstthe refrigeranttubes,thenthe electricallines.

• Always disassemble the electric lines before the

refrigerant tubes.

• Upon receipt, inspect the product to verifythat it has not

been damaged during transport. If the product appears

damaged, DO NOTINSTALL it and immediatelyreport

the damage tothe carrierorretailer(if the installerorthe

authorized technician has collected the material from the

retailer.)

• Aftercompletingthe installation, always carry out 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

freeflames to avoid the occurrence of fires, explosions or

injuries.

• Do not install the product in a place where thermohygrostat

is needed (such as serverroom, machineryroom, computer

room, etc.). Those places do not provide guaranteed

operation condition ofthe product therefore performance

can be poorin these places.

• Do not install the product in a ship ora vehicle (such as a

campervan). Salt,vibration orotherenvironmental factor

maycause the product malfunction, electric shock orfire.

• Ourunits should be installed in compliancewith the spaces

shown in the installation manual,to ensure accessibility

from both sides and allowrepairs ormaintenance

operations to be carried out. The unit’s components should

be accessible and easyto disassemblewithout endangering

people and objects.

Forthis reason,when provisions ofthe installation manual

are not compliedwith, the cost required to access and

repairthe units (in SAFETY CONDITIONS, as set out in

prevailing regulations)with harnesses, ladders, scaffolding

oranyotherelevation systemwill NOTbe considered part

of thewarrantyandwill be charged to the end customer.

Donot installthe airconditionerinfollowingplaces.

• Placewherethere is mineral oil orarsenic acid. Resin

parts flame and the accessories may drop orwatermay

leak. The capacityof the heat exchangermayreduce or

the airconditionermay be out of order.

• The placewhere corrosive gas such as sulphuric acid gas

generates from the vent pipe orairoutlet.

• The copperpipe orconnection pipe maycorrode and

refrigerant may leak.

• The placewherethere is a machine that generates

electromagneticwaves. The airconditionermaynot

operate normally dueto control system.

• The placewherethere is a dangerof existing combustible

gas, carbon fibre orflammable dust.

• The placewherethinnerorgasoline is handled. Gas may

leak and it maycause fire.

• The placewhere animals mayurinate on the product.

Ammonia maybe generated.

• The placewhere is close to heat sources.

• Do not use the indoorunit forpreservation of food

items, plants, equipment, and artworks. This maycause

deterioration of theirquality.

• Do not install the indoorunit if it has anydrainage problem.

SafetyInformation

English

SafetyInformation

Powersupplyline,fuseorcircuit

breaker

WARNING

• Always make sure that the 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 frequency of the power

supplycomplywith the specifications and that the

installed poweris sufficient to ensure the operation of

anyotherdomestic appliance connected tothe same

electric lines.

• Alwaysverifythat the cut-off and protection switches

are suitably dimensioned.

• Verifythat the airconditioneris connected tothe power

supplyin 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 applicableto

the installation of airconditioners.

• Devices disconnected from the powersupplyshould be

completely disconnected in the condition of overvoltage

category.

• Be sure not to perform powercable modification,

extensionwiring, and multiplewire connection.

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CAUTION

Makesurethatyouearththecables.

• Do not connect the earth wire to the gas pipe, waterpipe,

lighting rod ortelephonewire. If earthing is not complete,

electric shock orfire mayoccur.

Installthecircuit breaker.

• If the circuit breakeris not installed, electric shock orfire

mayoccur.

Makesurethatthe condensedwaterdrippingfromthe

drainhoserunsoutproperlyandsafely.

Installthepowercableandcommunicationcableofthe

indoorandoutdoorunit atleast1m awayfromtheelectric

appliance.

Install the indoorunit awayfrom lighting apparatus using

theballast.

• If you use the wireless remote control, reception error

mayoccurdue tothe ballast of the lighting apparatus.

6English

InstallationProcedure

Step1 Checkingandpreparing

accessories

The following accessories are supplied with the indoor

unit. The type and quantitymay differ, depending on the

specifications.

Installationmanual(1) Usermanual (1)

Patternsheet (1) Dimensiongauge (1)

Drainhose (1) Clamp(1)

Insulationpipe

(Liquidside(1),gasside(1)) Insulation drainhose(1)

Cable-tie(6)

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 around the indoorunit.

• Before installing the indoorunit, be sure to 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

ʪϑϑϩ˵ɇߤ࢏ߧ࢏

• Ifyou install the cassette orduct type indoorunit on

the ceiling with humidityover80%, you must apply

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with similarmaterial on the bodyof the indoorunit.

English

InstallationProcedure

(Unit: mm)

950

370

185

166

120

330

840

240 60 55

133

186

237

302

B101

351

890~910 (Ceiling opening)

735 (Space of suspension bolts)

890~910 (Ceiling opening)

735 (Space of suspension bolts)

950

The sub duct hole is not applicable tothe Wind-Free models.

Model AC018TN4PEH AC024TN4PEH AC036TN4PEH AC048TN4PEH

Chassis Small Large Large+

Amm 215 238

Bmm 105 127

Cmm 196 222

Netdimension(WxDxH) mm 840X840X204 840X840X288

Netweight kg 14.5 18.0 20.0

Liquidpipeconnection mm 6.35 9.52

Gaspipeconnection mm 12.7 15.88 15.88

Drainhose connection mm VP25 (OD: 32)

InstallationProcedure

English

InstallationProcedure

Spacingrequirements

A1500 mm ormore

20 mm

17 mm

2500 mm ormore

Obstruction

(Unit: mm)

Model AC018TN4PEH

AC024TN4PEH AC036TN4PEH

AC048TN4PEH

A251 335

C:1500 mm ormore

CAUTION

• Complywith the length and height limits described in

the figure above.

• The indoorunit must be installed accordingto 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 conditionsforpeople and the unit.

• Do not holdthe dischargewhile carrying the indoor

unit to avoid the possibilityof breakage.

• You must hold the hangerplate on the 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 insulation tothe body of 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.

NOTE

• A: Reference forthe outercircumference of the unit

(When insulating the bodyof the indoorunit, use Aas

the reference forits outercircumference.)

(Unit: mm)

Indoorunit A B C D E

4wayCassette

(840x204x840)

AC018TN4PEH

AC024TN4PEH 910X151 940X151 610X151 650X151 870X870

4wayCassette

(840x288x840)

AC036TN4PEH

AC048TN4PEH 910X235 940X235 610X235 650X235 870X870

English

InstallationProcedure

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 mayshrink

orstretch slightlydue totemperature 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

Insert

Suspension bolt (M8) - field supply

Hole in anchor

Hole in plug

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 prevent vibration.

4 Screweight pairs of nuts and washers to the

suspension bolts, making space forhanging the indoor

unit.

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 remove the unit if necessary.

5 Hang the indoorunit to the suspension bolts between

two nuts. Cut a pad stopperand place it on the

suspension bolts to hold thewasher. Remove the

stopperand screwthe nuts tofix the unit.

6 Check the level of the indoorunit by using a leveler.

• Atilt of the indoorunit maycause malfunction of a

built-in float switch andwaterleaks.

Level

InstallationProcedure

English

InstallationProcedure

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, connect the othercables

and install the front panel.

Indoorunit 20 mm

Gauge of dimensions

Ceiling

17 mm

Step5 Purginginertgasfromthe

indoorunit

The indoorunit comeswith nitrogen gas (inert gas)

charged atthe factory. Therefore, all inert gas must be

purged before connecting the assembly piping.

Unscrewthepinchpipeattheendof eachrefrigerant pipe.

Insulator Liquid side

Gas side

NOTE

• To prevent dirt orforeign objectsfrom getting into the

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 wishto 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 correctlyand

incorrectly.

Pipe cutter

Pipe

90°

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.

Flare

90° ±2°

45° ±2°

Pipe

R 0.4to 0.8 mm

Flare

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 incorrectflaring.

Correct Inclined Cracked Uneven

Thickness

Damaged

Surface

English

InstallationProcedure

Step7 Connectingtheassemblypipes

totherefrigerantpipes

Therearetworefrigerantpipesof different diameters:

• 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.

Spanner Torque

wrench

Flare nut

Union

OuterDiameter(mm) Torque(N•m)

Ø6.35 14 to18

Ø9.52 34 to 42

Ø12.70 49to 61

Ø15.88 68 to 82

Ø19.05 100to120

(1N•m=10kgf•cm)

NOTE

• If the pipes must be shortened, see Step6 Cutting

andflaring thepipes on page 10.

2 Be sureto use an insulatorthick enough to coverthe

refrigerant tube to protect the condensate wateron

the outside of the pipe falling onto thefloorand to

improve the efficiency of 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.

CAUTION

• Connect the indoorand outdoorunits using pipeswith

flared connections (not supplied). Forthe lines, use

insulated, unwelded, degreased and deoxidized copper

pipe (Cu DHP type to ISO1337 orUNI EN12735-1), suitable

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sanitary applications is completelyunsuitable.

• Forsizing and limits (height difference, line length, max.

bends, refrigerant charge, etc.) see the outdoorunit

installation manual.

• All refrigerant connection must be accessible, in orderto

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.

Step8 Performingthegasleaktest

To identify potential gas leaks onthe 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 0.2 MPa, less than 4 MPa (gauge) in order

to immediately detect leaks on the refrigerant fittings.

Madevacuum for10 minutes and pressurizing system

with nitrogen.

Insulator Liquid side

Gas side

InstallationProcedure

English

InstallationProcedure

Step9 Insulatingtherefrigerantpipes

Onceyou have checked that 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

NOTE

• Always make the seam of pipes face upwards.

2 Wind insulating tape around the pipes and drain hose

avoiding compressing the insulation too much.

Indoorunit

Insulation coverpipe

Insulation pipe

Be sure to overlap the insulation.

CAUTION

• Be sure to wrap insulationtightlywithout any gaps.

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 tothe wall

with suitable ducts.

CAUTION

• Make sure that all refrigerant connection must be

accessibleforeasymaintenance and detachment.

• 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.

Additional insulation Hanger

Refrigerant pipe

insulation

a x 3

5 Selectthe insulation of the refrigerant pipe.

• Insulate the gas side and liquid side pipe, noting the

insulation thickness 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 to the table below. If installing in an

unfavourable environment, use thickerone.

• The heat-resistance temperature of the insulator

must be morethan120°C.

Pipe Pipesize

(mm)

Insulationtype

(heating/cooling)

Remarks

Standard

(Lessthan

30°C,

85%)

High

humidity

(Over30°C,

85%)

EPDM,NBR

Liquid

pipe

Ø6.35 to

Ø9.52 9t 9t

The internal

temperature

is higherthan

120°C.

Ø12.7 to

Ø19.05 13t 13t

Gas

pipe

Ø6.35 13t 19t

Ø9.52

19t 25t

Ø12.70

Ø15.88

Ø19.05

• When installing insulation in the places and

conditions below, use the same insulation that is

used forhigh humidity conditions.

English

InstallationProcedure

High humiditylocations such as shorelines, hot springs, lake or

riversides, and ridges (when part of the building is covered by

earthand sand)

Restaurant ceiling, sauna, swimming pool etc.

Ceilings frequently exposedto 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.

Step10 Installingthedrainhoseand

drainpipe

1 Push the supplied drain hose as faras possible over

the drain socket.

2 Tighten the metal clamp as shown in the picture.

3 Wrapthe supplied large sealing pad overthe metal

clamp and drain hose to insulate and fix itwith clamps.

4 Insulate the complete drain piping inside the building

(field supply).

If the drain hose cannot be sufficientlyset on a slope,

fit the hosewith drain raising piping (field supply).

5 Push the drain hose upto insulation when connecting

the drain hose to drain socket.

Metal clamp Drain socket

Drain hose

Drain pipe

Be sure to bondthe drain

hose and the main pipe.

Large seailng pad

Drain hose PVC Tube Joint

+ VP25 (OD: 32 mm)

Drain pipe

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 straight within 300 mm

fromthe drain hose port. If it is raised higherthan 550

mm, there maybe waterleaks.

Drain hose

20 mm ormore

1/100 ormore

550 mm orless

300 mm orless

Ceiling

Band joint

InstallationProcedure

English

InstallationProcedure

• Do not givethe hose an upward gradient beyond

the connection port. Thiswill cause waterto flow

backwards when the unit is stopped, resulting in water

leaks.

Undergradient

Ceiling

• Do not applyforce to the piping on the 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.

Support pieces

1 to1.5 m

1/100 ormore

Ceiling

• Install horizontally.

Be horizontal

Indoorunit

Flexible hose

• Max. allowable axis gap.

Indoorunit

Max. 20 mm

• Max. allowable bending angle.

Indoorunit đɇу࢏ߥߢઘ

NOTE

• If a concentrated drain pipe is installed, referto the figure below.

Hanger

Individual air

vent

Main drainpipe

Main airvent

300 to 550 mm

200 mm ormore

Centralized horizontal drainpipe

(more than1/100 slope)

1~1.5m

English

InstallationProcedure

• If 3 ormore units are installed, install the main airvent

at the front of the farthest indoor unit from the main

drain pipe.

• To prevent waterfrom flowing back to indoorunits,

install an individual airvent at thetop of each indoor

unit.

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ʒЇϑϩͱθ˙ͱθʪ˝ϑЇɵϑϩɇʀʪϑ˙θͱʪϩʪθ˝࢏

–ǽͱЇɇцͱϩʪʪʒϩͱϑϩɇɇθЭʪϩ˙ϩ˵ʪ˵ͱθіͱϩɇ

ʒθɇΧΧʪϑΧθͱΧʪθϑͱΧʪ࢏

Step11 Performingthedrainagetest

1 Do a leaktest at the connection part of the flexible hose

and the drain pipe:

a Connect a general hose to the connection part of

the flexible hose of the indoorunit, and pourin some

water.

Hose

Flexible hose

Waterleakage

check part

b Afterpouring some water, reassemble the rubbercap

on the connection part of a flexible hose of the indoor

unit and firmlytighten itwith a band to prevent

leakage.

c Check the leak test at the part where the adhesive for

the 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 Pourabout 2 liters ofwaterinto the indoorunit drain

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 directly connected 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, check whetherthe 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 on the drain pan,

remove thewater.

InstallationProcedure

English

InstallationProcedure

Step12 Connectingthepowerand

communicationcables

CAUTION

• Always rememberto connect the refrigerant pipes

before performing the electric connections.

When disconnecting the system, always disconnect

the electric cables before disconnecting the

refrigerant pipes.

• Always rememberto connect the airconditionerto

the grounding system before performing the electric

connections. Use a crimp ring terminal at the end of

eachwire.

The indoorunit is powered through the outdoorunit by

means of a H05 RN-F orH07 RN-F connection cable (ora

more powermodel),with insulation in synthetic rubber

and a jacket in polychloroprene (neoprene), in accordance

with the requirements specified inthe standard EN

60335-2-40.

1 Removethe screwon the electrical component box

and remove the coverplate.

2 Route the connection cordthrough the side of the

indoorunit and connect the cable to the terminals

referto the figure below.

3 Route the otherend of the cable to the outdoorunit

throughthe ceiling & the hole on thewall.

4 Reassemble the electrical component box cover,

carefullytightening the screw.

AC018/024TN4PEH(1-phase)

IndoorUnit

OutdoorUnit

1(L) 2(N)

F1 F2

NF1

Cable clamp

Indoorpowercable Main power

cable

Communication

cable

Cable

tie

AC036/048TN4PEH(1-phase)

IndoorUnit

OutdoorUnit

1(L)

F1 F2

2(N) L N

NF1

Indoorpowercable Main power

cable

Cabletie

Communication

cable

English

InstallationProcedure

Indoorpowersupply

Powersupply Max/Min(V) Indoorpowercable

ߣףࡥߤߤߢϩͱߤߦߢǤࡥߧߢ²і

±10% ߢ࢏ߩߧࠌࡥߥиθʪϑ

Communicationcable

ߢ࢏ߩߧࠌࡥߤиθʪϑ

(Unit: mm)

AC power: M4 screw Communication: M3.5 screw

11 13

13.8

7.5 9.0

Tighteningtorque(N·m)

M3.5 0.8to1.2

M4 1.2to1.8

• 1 N·m =10 kgf·cm

• Powersupplycords of parts of appliances foroutdoor

use shall not be lighterthan polychloroprene sheathed

flexible cord.

–Aͱʒʪʒʪϑ˝ɇϩͱ

[1-phase] IEC: 60245 IEC 57 / CENELEC: H05RN-F

grade ormore

[3-phase] IEC: 60245 IEC 66 / CENELEC: H07RN-F

grade ormore

• Since it has the external powersupply, referto the

outdoorunit installation manual forMAIN POWER.

CAUTION

• When installing the indoorunit in a computer

room ornetwork room, use the double shielded

communication cable (tape aluminum / polyester

braid + copper) of FROHH2Rtype.

Step13 Optional:Extendingthepower

cable

1 Prepare the following tools.

Tools Spec Shape

Crimping pliers MH-14

Connection sleeve

(mm) 20xØ6.5

(HxOD)

Insulationtape Width19

Contraction tube

(mm) 70xØ8.0

(LxOD)

2 As shown in thefigure, peel off the shieldsfrom the

rubberandwire of the powercable.

• Peel off 20 mm of cable shields fromthe pre-

installed tube.

Powercable (Unit: mm)

20 20 20

120

180

120

20 20 20

Pre-installed

tube forthe

powercable

CAUTION

• Forinformation about the powercable specifications

forindoorand outdoorunits, referto the installation

manual.

• Afterpeeling off cablewires from the pre-installed

tube, insert a contractiontube.

InstallationProcedure

English

InstallationProcedure

3 Insert both sides of corewire ofthe powercable into

the connection sleeve.

• Method1: Push the corewire intothe sleeve from

both sides.

• Method 2: Twist thewire cores togetherand push it

into the sleeve.

Method1

Connection sleeve Connection sleeve

Method2

CAUTION

• If cablewires are connectedwithout using connecting

sleeves, theircontact area becomes reduced, or

corrosion develops on the outersurfaces of thewires

(copperwires) overa long time. This maycause an

increase of resistance (reduction of passing current)

and consequentlymayresult in afire.

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.

Method1

Compress it 4 times.

5 mm 5 mm

Compress it 4 times.

Method2

5 Wrap itwith the insulation tapetwice ormore and

position your contraction tube in the middle of the

insulation tape.

Method1 Method2

40 mm

Insulationtape Insulation tape

35 mm

6 Apply heat to the contraction tube to contract it.

Method1 Contractiontube Contractiontube

Method2

7 Aftertube contractionwork is completed,wrap itwith

the insulation tape to finish.

Three ormore layers of insulation are required.

Method1 IInsulationtape IInsulation tape

Method2

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 voltage with

the powercable. (Complywith the local regulations on

extensions.)

WARNING

• In case of extending the electricwire, please DO NOT

use a round-shaped Pressing socket.

–ÃʀͱΧʪϩʪиθʪʀͱʪʀϩͱϑʀɇʀɇЇϑʪʪʪʀϩθʀ

ϑ˵ͱʀͱθɇ˙θʪ࢏

English

InstallationProcedure

Step14 Settingtheindoorunit

addressesandtheinstallationoptions

You cannot set both of the indoorunit addresses and

the installation options in a batch: set both of them

respectively.

Commonstepsforsettingtheaddressesand

options

LowTemp button

High Temp button Mode button

LowFan button

High Fan button

Settingthe

optionvalues

Enteringthe

modeforsetting

theoptions

NOTE

• The remote control display and buttons mayvary

depending on the model.

1 Enterthe mode forsetting the options:

a Remove the batteries from the remote control,

and then insert them again.

b While holding down the (High Temp) and

(LowTemp) buttons simultaneously, insert the

batteries intothe remote control.

c Make sure that you are enteredto the mode for

setting the options:

2 Set the option values.

CAUTION

• The total numberof available options are 24: SEG1to

SEG24.

• Because SEG1, SEG7, SEG13, and SEG19 are the page

options used bythe previous remote control models,

the modes to setvalues forthese options are skipped

automatically.

• Set a 2-digitvalue foreach option pairin the following

order: SEG2 and SEG3 SEG4 and SEG5 SEG6 and

SEG8 SEG9 and SEG10 SEG11 and SEG12 SEG14

and SEG15 SEG16 and SEG17 SEG18 and SEG20 

SEG21 and SEG22 SEG23 and SEG24

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6

0XXXXX

SEG7 SEG8 SEG9 SEG10 SEG11 SEG12

1XXXXX

SEG13 SEG14 SEG15 SEG16 SEG17 SEG18

2XXXXX

SEG19 SEG20 SEG21 SEG22 SEG23 SEG24

3XXXXX

On(SEG1toSEG12) Off(SEG13toSEG24)

InstallationProcedure

English

InstallationProcedure

Take the steps presented in the following table:

Steps Remotecontroldisplay

1 Set the SEG2 and SEG3 values:

a Set the SEG2value bypressingthe (LowFan) button repeatedlyuntil the