Samsung NS1254PXEA User manual

Cassette Type Series

AC777FB4DEH

AC777FB4PEH

AC777FB4FEH

NS7774PXEA

NS7774DXEA

NS7774ZXEA

Air Conditioner

installation manual

imagine the possibilities

Thank you for purchasing this Samsung product.

Preparation for installation ............................................................................................................................................................................................... 3

Deciding on where to install the indoor unit ........................................................................................................................................................... 4

Indoor unit installation ....................................................................................................................................................................................................... 8

Purging the unit ..................................................................................................................................................................................................................... 9

Connecting the refrigerant pipe .................................................................................................................................................................................... 9

Cutting/Flaring the pipes ............................................................................................................................................................................................... 10

Performing leak test & insulation ............................................................................................................................................................................... 11

Drainpipe and drain hose installation ...................................................................................................................................................................... 12

Installing DPM ..................................................................................................................................................................................................................... 14

Connecting the connection cord ............................................................................................................................................................................... 15

Installation Procedure ........................................................................................................................................................................................................ 16

Setting an indoor unit address and installation option ..................................................................................................................................... 18

Troubleshooting ................................................................................................................................................................................................................. 25

Contents

Safety precautions

Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.

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its internal components.

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General information

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Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able

to use it as reference after installation.

For maximum safety, installers should always carefully read the following warnings.

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sold or transferred.

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BSJTJOHGSPNUIFVTFPGOPODPNQMJBOUVOJUTW

The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of

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The air conditioner should be used only for the applications for which 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 o and disconnect it from the power supply.

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The packing material and exhaust batteries of the remote controller(optional) must be disposed of in accordance with current laws.

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must be disposed of in authorized centers or returned to the retailer so that it can be disposed of correctly and safely.

Installing the unit

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collected the material from the retailer.)

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conditioner to the user.

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WARNING

ENGLISH

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Our units should be installed in compliance with the spaces shown in the installation manual, to ensure accessibility from both

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Power supply line, fuse or circuit breaker

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with current local safety standards.

X

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to ensure the operation of any other domestic appliance connected to the same electric lines.

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included in the manual.

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to the installation of air conditioners.

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Do NOT install the air conditioner in a location where it will come into contact with the following elements :

Combustible gases

Saline air

Machine oil

Sulphide gas

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Avoid installing the air conditioner :

In areas where it is exposed to direct sunlight. Close to heat sources.

In damp areas or locations where it could come into contact with water. (for example rooms used for laundry)

In areas where curtains and furniture could aect the supply and discharge of air.

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during the use of the air conditioner.

In a position that does not enable the condensate drainage pipe to be correctly installed. (at the end of the

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General

Preparation for installation

Make sure that you earth the cables.

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Install the circuit breaker.

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Make sure that the condensed water dripping from the drain hose runs out properly and safely.

Install the power cable and communication cable of the indoor and outdoor unit at least 1m away from the electric appliance.

Install the indoor unit away from lighting apparatus using the ballast.

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Do not install the air conditioner in following places.

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leak. The capacity of the heat exchanger may reduce or the air conditioner may be out of order.

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The copper pipe or connection pipe may corrode and refrigerant may leak.

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normally due to control system.

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Deciding on where to install the indoor unit

Preparation for installation

X The following accessories are supplied with the indoor unit.

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Indoor unit

Space requirements for indoor unit

Accessories

There must be no obstacles near the air inlet and outlet.

Install the indoor unit on a ceiling that can support its weight.

.BJOUBJOTVóDJFOUDMFBSBODFBSPVOEUIFJOEPPSVOJU

Make sure that the water dripping from the drain hose runs away correctly and safely.

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*OTVMBUJPODPWFS

band

Insulation pipe $BCMFUJF Drain hose

Installation

manual

Clamp

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polyethylene foam or other insulation with similar material on the body of the indoor unit.

ENGLISH

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order to permit accessibility from each side,

either to guarantee correct operation of maintenance or

repairing products.

5IFVOJUTQBSUTNVTUCFSFBDIBCMFBOESFNPWBCMFDPNQMFUFMZ

under safety condition (for people or things).

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hanger plate on the corner and carry the indoor unit.

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IVNJEJUZPWFSJOTUBMMBNNUIJDLOFTTPGQPMZFUIZMFOFJOTVMBUJPOPSTJNJMBSUZQFPGJOTVMBUJPOPOUIFJOEPPSVOJU

body.

Insulation installation guide

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X 8IFOJOTVMBUJOHBDPOOFDUJOHEVDUUIFPVUMFUBOEJOMFUQBSUGSPOUCBDLTIPVMECF

insulated together.

X *OTVMBUFUIFFOEPGUIFQJQFBOETPNFDVSWFEBSFBCZVTJOHTFQBSBUFJOTVMBUPS

Thickness: more than 10mm

Indoor unit " BCD&

Cassette type

XBZ$BTTFUUF-

(840x288x840)

77090FB4P77

77100FB4P77

77100FB4F77

770904PX77

7712547X77

771004PX77

771004ZX77

910X235 940X235 610X235 650X235 9

XBZ$BTTFUUF.

(840x246x840)

77'#177

77090FB4D77

77100FB4D77

771977

770904DX77

771004DX77

910X193 940X193 610X193 650X193 9

XBZ$BTTFUUF4

(840x204x840)

77052FB4D77

77'#%77

77%977

910X151 940X151 610X151 650X151 9

Deciding on where to install the indoor unit

.0%&-

77052FB4D77

77'#%77

77%977

77'#177

77090FB4D77

77100FB4D77

771977

770904DX77

771004DX77

77090FB4P77

770904PX77

771254DX77

77100FB4P77

77100FB4F77

771004PX77

771004ZX77

771254PX77

771404PX77

771404DX77

C mm 251 293 335 335

/FUEJNFOTJPO mm 840×204×840 840×246×840 840×288×840 840×288×840

Required space for an indoor unit installation

Obstruction

20mm

NN

1500mm

or more

A$NN

2500mm or more

ENGLISH

6OJUNN

.0%&-

77052FB4D77

77'#%77

77%977

77'#177

771977

77090FB4D77

77100FB4D77

770904DX77

771004DX77

77090FB4P77

770904PX77

771254DX77

77100FB4P77

77100FB4F77

771004PX77

771004ZX77

771254PX77

771404DX77

771404PX77

" mm 204 246 288

B mm 253 295 

/FUEJNFOTJPO mm 840 X 204 X 840 840 X 246 X 840 840 X 288 X 840

/FUXFJHIU kg 15.0 16.0 18.0 20.0

-JRVJEQJQFDPOOFDUJPO 1/4" 3/8"

(BTQJQFDPOOFDUJPO 1/2" 5/8"

Drain Hose connection mm OD : Φ32.0, ID : Φ26.5

Drawing of the indoor unit

890~910 (Celling opening)

950

4VTQFOTJPOQPTJUJPO

890~910 (Celling opening)

4VTQFOTJPOQPTJUJPO

Sub duct connection

55 840



346

185

950

120

164

216

55 55840

330 240



300

Indoor unit installation

Ceiling support

Pad stopper

Bracket

Ceiling

NN

20mm

Indoor unit

(BVHFPG

Dimensions

Concrete

4VTQFOTJPOCPMU.GJFMETVQQMZ

Hole in anchor

Hole in plug

Insert

8IFOEFDJEJOHPOUIFMPDBUJPOPGUIFBJSDPOEJUJPOFSXJUIUIFPXOFSUIFGPMMPXJOHSFTUSJDUJPOTNVTUCFUBLFOJOUPBDDPVOU

1. Determine the position of the pipe and drain hose hole as seen in the

picture and drill the hole with an inner diameter of 65mm so that it slants

slightly downwards.

2. Insert bolt anchors, use existing ceiling supports or construct a suitable

support as shown in gure.

3. Install the suspension bolts depending on the ceiling type.

4. Screw eight nuts to the suspension bolts making space for hanging the

indoor unit.

5. Hang the indoor unit to the suspension bolts between two nuts.

6. Screw the nuts to suspend the unit. Cut a pad stopper and place it on the

bracket at this time.

7. Adjust the unit to the appropriate position considering the installation area

for the front panel.

1) Place the pattern sheet on the indoor unit.

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of dimensions.

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MFWFMFS

 3FNPWFUIFQBUUFSOTIFFUDPOOFDUUIFPUIFSDBCMFTBOEJOTUBMMUIFGSPOU

panel.

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due to temperature or humidity. For this reason, before drilling the

holes maintain the correct dimensions between the markings.

t 1JQJOHNVTUCFMBJEBOEDPOOFDUFEJOTJEFUIFDFJMJOHXIFO

suspending the unit. If the ceiling is already constructed, lay the

piping into position for connection to the unit before placing the unit

inside the ceiling.

t &OTVSFUIBUUIFDFJMJOHJTTUSPOHFOPVHIUPTVQQPSUUIFXFJHIUPGUIF

indoor unit. Before hanging the unit,

test the strength of each attached suspension bolt.

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QSFWFOUWJCSBUJPO

t :PVNVTUJOTUBMMBMMUIFTVTQFOTJPOSPET

t *UJTJNQPSUBOUUPMFBWFTVóDJFOUTQBDFJOUIFGBMTFDFJMJOHUPBMMPX

access for maintenance or repairs to the drainage pipe connection,

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ENGLISH

There are two refrigerant pipes of dierent diameters :

"TNBMMFSPOFGPSUIFMJRVJESFGSJHFSBOU

"MBSHFSPOFGPSUIFHBTSFGSJHFSBOU

The inside of copper pipe must be clean & has no dust

1. Remove the pinch pipe on the pipes and connect the assembly pipes to each pipe, tightening the nuts, rst manually

and then with a torque wrench, a spanner applying the following torque.

2. Must use insulator which is thick enough to cover the refrigerant tube to protect the condensate water on the outside

of pipe falling onto the oor and the eciency of the unit will be better.

3. Cut o any excess foam insulation.

4. Be sure that there must be no crack or wave on the bended area.

5. It would be necessary to double the insulation thickness(10mm or more) to prevent condensation even on the

insulator when if the installed area is warm and humid.

6. Do not use joints or extensions for the pipes that connect the indoor and outdoor unit. The only permitted connections

are those for which the units are designed.

Purging the unit

'SPNGBDUPSZUIFVOJUJTTVQQMJFEBOETFUXJUIBQSFDIBSHFPGOJUSPHFOHBTJOTFSUHBT5IFSFGPSFBMMJOTFSUHBTNVTUCFQVSHFE

before connecting the assembly piping.

Unscrew the pinch pipe at the end of each refrigerant pipe.

3&46-5"MMJOFSUHBTFTDBQFTGSPNUIFJOEPPSVOJU

t 5PQSFWFOUEJSUPSGPSFJHOPCKFDUTGSPNHFUUJOHJOUPUIFQJQFTEVSJOH

JOTUBMMBUJPOEP/05SFNPWFUIFQJODIQJQFDPNQMFUFMZVOUJMZPVBSF

ready to connect the piping.

t *GUIFQJQFTNVTUCFTIPSUFOFESFGFSUPQBHF

t $POOFDUUIFJOEPPSBOEPVUEPPSVOJUTVTJOHQJQFTXJUIøBSFEDPOOFDUJPOTOPUTVQQMJFE'PSUIFMJOFTVTF

JOTVMBUFEVOXFMEFEEFHSFBTFEBOEEFPYJEJ[FEDPQQFSQJQF$V%)1UZQFUP*40PS6/*&/TVJUBCMF

GPSPQFSBUJOHQSFTTVSFTPGBUMFBTUL1BBOEGPSBCVSTUQSFTTVSFPGBUMFBTUL1B$PQQFSQJQFGPSIZESP

sanitary applications is completely unsuitable.

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installation manual.

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Refrigerant oil

Spanner

6OJPO

Torque wrench

Flare nut

Outer Diameter (D) 5PSRVF/tN

ø6.35 mm 14~18

ø9.52 mm 34~42

NN 49~61

ø15.88 mm 68~82

ø19.05 mm 100~120

Connecting the refrigerant pipe

-JRVJETJEF

(BTTJEF

Cutting/Flaring the pipes

1. Make sure that you have the required tools available. (pipe cutter, reamer, aring tool and pipe holder)

2. If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle

with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.

3. To prevent any gas from leaking out, remove all burrs at the cut edge of the pipe, using a reamer.

4. Slide a are nut on to the pipe and modify the are.

5. Check that the aring is correct, referring to the illustrations below for examples of incorrect aring.

6. Align the pipes and tighten the are nuts rst manually and then with a torque wrench, applying the following torque.

t *GUIFQJQFTSFRVJSFCSB[JOHFOTVSFUIBU0'/0YZHFO'SFF/JUSPHFOJTøPXJOHUISPVHIUIFTZTUFN

t /JUSPHFOCMPXJOHQSFTTVSFSBOHFJT_.1B

Oblique Rough

Burr

Pipe

cutter

Pipe

Outer Diameter (D) Depth (A)

ø6.35 mm 1.3 mm

ø9.52 mm 1.8 mm

NN 2.0 mm

ø15.88 mm 2.2 mm

ø19.05 mm 2.2 mm

Pipe

Flare

6OFWFO

Thickness

CrackedDamaged

Surface

InclinedCorrect

7BMWF

Flare nut 7BMWFDBQ Pressure port cap 7BMWFOFFEMF Pressure port

8SFODINN /tN 8SFODINN /tN 8SFODINN /tN 8SFODINN /tN 8SFODINN /tN

1/4"  18 23 20 18 16~18 "MMFOIFY 9  0.34

3/8" 22 42 23 20 18 16~18 "MMFOIFY 9  0.34

1/2" 26 55 29 40 18 16~18 "MMFOIFY 13  0.34

5/8" 29 65 29 40 18 16~18 "MMFOIFY 13  0.34

3/4" 36 100 38 40 18 16~18 "MMFOIFY 13  0.34

ENGLISH

To identify potential gas leaks on the indoor unit, inspect the connection area of each refrigerant

pipe using a leak detector for R410A.

Before recreating the vacuum and recirculating the refrigerant gas, it is advisable to pressurize the

whole system with nitrogen (using a cylinder with pressure reducer) at a pressure above 40 bar in

order to immediately detect leaks on the refrigerant ttings.

Made vacuum for 15 minutes and pressurising system with nitrogen.

t *GUIFQJQFTSFRVJSFCSB[JOHFOTVSFUIBU0'/0YZHFO'SFF/JUSPHFOJTøPXJOHUISPVHIUIFTZTUFN

Leak test

Performing leak test & insulation

Once you have checked that there are no leaks in the system, you can insulate the piping and hose.

To avoid condensation problems, place Acrylonitrile Butadien Rubber separately

around each refrigerant pipe.

2 Wind insulating tape around the pipes and drain hose avoiding to compress

the insulation too much.

Finish wrapping insulating tape around the rest of the pipes leading to the outdoor unit.

4 The pipes and electrical cables connecting the indoor unit with the outdoor

unit must be xed to the wall with suitable ducts.

5 Select the insulation of the refrigerant pipe.

X Insulate the gas side and liquid side pipe referring to the thickness

according to the pipe size.

X-FTTUIBOJOEPPS

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condition. If installing in a high humidity condition, use one grade thicker insulator by referring to the table below.

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Insulation

/PHBQ

/#3

*OTVMBUJPODPWFSQJQF

Indoor unit

#FTVSFUPPWFSMBQ

the insulation

Insulation pipe

t .VTUöUUJHIUMZBHBJOTU

body without any gap.

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t "MMSFGSJHFSBOUDPOOFDUJPONVTUCFBDDFTTJCMFJOPSEFSUPQFSNJU

FJUIFSVOJUNBJOUFOBODFPSSFNPWJOHJUDPNQMFUFMZ

Pipe

Pipe size

Insulation Type (Heating/Cooling)

RemarksStandard [Less than 30°C, 85%] High humidity [Over 30°C, 85%]

EPDM,NBR

-JRVJE

pipe

Ø6.35 ~ Ø9.52 9t 9t

Internal temperature is

IJHIFSUIBO¡$

_ 13t 13t

(BT

pipe

Ø6.35 13t 19t

Ø9.52

19t 25t



Ø15.88

Ø19.05

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 SFHVMBUJPOSFH&&$&6UIBU  

requires the use of sheaths insulation form without using CFC and

 )$'$HBTFTGPSIFBMUIBOEUIFFOWJSPONFOU

Drainpipe and drain hose installation

1 Push the supplied drain hose as far as possible over the drain socket.

2 Tighten the metal clamp as shown in the picture.

3 Wrap the supplied large sealing pad over the metal clamp and drain hose to insulate and x it with clamps.

4 Insulate the complete drain piping inside the building (eld supply).

If the drain hose cannot be suciently set on a slope, t the hose with drain raising piping (eld supply).

5 Push the drain hose up to insulation when connecting the drain hose to drain socket.

A-A’

Drain socket

Drain piping

Drain hose

Metal clamp

-BSHFTFBMJOHQBE

Tighten the clamp to the maximum

until you can see eight holes.

 8IFOJOTUBMMJOHJOTVMBUJPOJOQMBDFTBOEDPOEJUJPOTCFMPXVTFUIFTBNFJOTVMBUJPOUIBUJTVTFEGPSIJHI

humidity conditions.

 (FPMPHJDBMDPOEJUJPO

 )JHIIVNJEJUZQMBDFTTVDIBTTIPSFMJOFIPUTQSJOHOFBSMBLFPSSJWFSBOESJEHFXIFOUIFQBSUPGUIF

CVJMEJOHJTDPWFSFECZFBSUIBOETBOE

 0QFSBUJPOQVSQPTFDPOEJUJPO

 3FTUBVSBOUDFJMJOHTBVOBTXJNNJOHQPPMFUD

 #VJMEJOHDPOTUSVDUJPODPOEJUJPO

 5IFDFJMJOHGSFRVFOUMZFYQPTFEUPNPJTUVSFBOEDPPMJOHJTOPUDPWFSFE

e.g. The pipe installed at a corridor of a dormitory and studio or near an exit that opens and closes

frequently.

 5IFQMBDFXIFSFUIFQJQFJTJOTUBMMFEJTIJHIMZIVNJEEVFUPUIFMBDLPGWFOUJMBUJPOTZTUFN

Performing leak test & insulation

ENGLISH

t *GBDPODFOUSBUFEESBJOQJQFJTJOTUBMMFESFGFSUPUIFöHVSFCFMPX

Concentrated drain pipe

100mm or

1/100 or

more slope

"JSWFOUJMBUJPO

Check that the indoor unit is level with the ceiling by using the leveler.

"JSWFOUJMBUJPO

Ceiling

*OTUBMMBJSWFOUJMBUJPOUPESBJODPOEFOTBUFXBUFSTNPPUIMZ

%POPUHJWFUIFIPTFBOEVQXBSEHSBEJFOUBGUFSUIF

DPOOFDUJPOQPSU5IJTXJMMDBVTFXBUFSUPøPXCBDLXBSET

when the unit is stopped, resulting in water leaks.

6OEFSHSBEJFOU

Ceiling

Do not apply force to the 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 or other support as close

to the unit as possible.

Support pieces

1~1.5m

Ceiling

1/100 or more

If it is necessary to increase the height of the drainpipe,

install the drainpipe straightly within 300 mm from the

drain hose port. If it is raised higher than 550 mm, there

can be water leaks.

300mm or less

Ceiling

20mm or more

Drain hose

#BOEKPJOU

1/100 or more

550mm or less

Install horizontally

Max. allowable bending angle

Max. allowable axis gap

Be horizontal

Indoor

6OJU

Flexible hose

Max. 20mm

Indoor

6OJU

Max. 30˚

Indoor

6OJU

Drainpipe and drain hose installation

1. Check the leak test at the connection part of the exible hose and the

distributing pipe (PVC).

 $POOFDUBHFOFSBMIPTFUPUIFDPOOFDUJPOQBSUPGUIFøFYJCMFIPTFPGUIF

indoor unit, and pour in some water.

 "GUFSQPVSJOHTPNFXBUFSSFBTTFNCMFUIFSVCCFSDBQPOUIFDPOOFDUJPO

QBSUPGBøFYJCMFIPTFPGUIFJOEPPSVOJUBOEUJHIUFOJUXJUIBCBOEöSNMZUP

QSFWFOUMFBLBHF

 $IFDLUIFMFBLUFTUBUUIFQBSUXIFSFUIFBEIFTJWFGPSUIFøFYJCMFIPTFBOE

the distributing pipe is used.

2. Check the condensed water drainage.

1) Pour about 2 liters of water into the indoor unit drain board as shown in the

picture.

2) 8IFOUIFFMFDUSJDDBCMFDPOOFDUJPOJTDPNQMFUFE

X Turn the indoor unit and outdoor unit on.

X Operate the Cool mode.

8IFOUIFFMFDUSJDDBCMFDPOOFDUJPOIBTOPUCFFODPNQMFUFE

X3FNPWFUIFDPOUSPMCPYDPWFSPGUIFJOEPPSVOJU

X$POOFDUUIFQPXFSTVQQMZPG7)[UP-/UFSNJOBM

X3FBTTFNCMFUIFDPOUSPMCPYDPWFSBOEUVSOPOUIFJOEPPSVOJU

3) Check whether the drain pump works correctly.

4) Check whether the drainage is performing correctly at the end of the drain pipe.

5) Check for leakage at the drain pipe and drain pipe connection part.

 8IFOMFBLBHFPDDVSTDIFDLXIFUIFSUIFJOEPPSVOJUJTMFWFMBOEDIFDLUIFESBJOIPTFDPOOFDUJPOQBSUESBJOQJQF

connection part and drain pump connection.

 8IFOUIFESBJOBHFDIFDLJTDPNQMFUFEBOEUIFDPOEFOTFEXBUFSSFNBJOTPOUIFESBJOCPBSESFNPWFUIFXBUFS

Testing the drainage

8BUFSMFBLBHF

check part

Hose

Installing DPM

8IFOJOTUBMMJOH%1.ZPVTIPVMETFUA%1.TFUUJOHUPUIFPVUEPPSVOJU

If DPM model is not set, communication error may occur.

8IJMFUIFPVUEPPSVOJUJTUSBDLJOHUIFJOEPPSVOJUGPSPOFNJOVUFBGUFSUIFQPXFSTVQQMZJTUVSOFEPOUIFPQFSBUJPONBZ

stop if the remote control reception signal of the installed indoor unit is dierent.

t 5IFMFBLUFTUTIPVMECFQFSGPSNFEGPSNPSFUIBOIPVSTBUMFBTU

t 0OMZJO$PPMNPEFZPVDBODIFDLUIFDPSSFDUPQFSBUJPOPGUIFESBJO

pump.

t 8IFOUIFøPBUTXJUDIJTOPUEFUFDUFEEVFUPJOTVóDJFOUXBUFSPOUIFESBJOCPBSEUIFESBJOQVNQXJMMOPUXPSL

t *GQPXFSTVQQMZJTEJSFDUMZDPOOFDUFEUP-/UFSNJOBMDPNNVOJDBUJPOFSSPSNFTTBHFNJHIUBQQFBS

t "GUFSDPNQMFUJOHUIFESBJOBHFDIFDLUVSOUIFVOJUPòBOEEJTDPOOFDUUIFQPXFSTVQQMZ

t 3FBTTFNCMFUIFDPOUSPMCPYDPWFS

ENGLISH

Connecting the connection cord

t "MXBZTSFNFNCFSUPDPOOFDUUIFSFGSJHFSBOUQJQFTCFGPSFQFSGPSNJOHUIFFMFDUSJDDPOOFDUJPOT

8IFOEJTDPOOFDUJOHUIFTZTUFNBMXBZTEJTDPOOFDUUIFFMFDUSJDDBCMFTCFGPSFEJTDPOOFDUJOHUIFSFGSJHFSBOUQJQFT

t "MXBZTSFNFNCFSUPDPOOFDUUIFBJSDPOEJUJPOFSUPUIFHSPVOEJOHTZTUFNCFGPSFQFSGPSNJOH

the electric connections.

The indoor unit is powered by the outdoor unit by means of a H07 RN-F connection cable (or a more power model),

with insulation in synthetic rubber and jacket in polychloroprene(neoprene), in accordance with the requirements of standard EN 60335-2-40.

1. Remove the screw on the electrical component box and remove the cover plate.

2. Route the connection cord through the side of the indoor unit and connect the cable to terminals; refer to the gure below.

3. Route the other end of the cable to the outdoor unit through the ceiling & the hole on the wall.

4. Reassemble the electrical component box cover, carefully tightening the screw.

Indoor Power supply

Communication Cable

Power Supply .BY.JO7

Indoor Power cable

7_)[ 

_NN¤XJSFT

_NN¤XJSFT

J Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord. (Code designation

*&$*&$$&/&-&$)3/'PS*&$*&$$&/&-&$)3/'

J 4DSFXTPOUFSNJOBMCMPDLNVTUOPUCFVOTDSFXFEXJUIUIFUPSRVFMFTTUIBOLHGtDN

J 4JODFJUIBTUIFFYUFSOBMQPXFSTVQQMZSFGFSUPUIFPVUEPPSVOJUJOTUBMMBUJPONBOVBMGPS."*/108&3

Wiring diagram

1 phase 3 phase

1(L) 2(N)

L3(T)

1(L) 2(N)

L2(S)

L1(R)

F2F1

*OEPPS6OJU

Main power cable

Cable clamp

Indoor Power

Communication cable

1(L)

2(N)

*OEPPS6OJU

Cable clamp

Indoor Power

Communication cable

Cable tie

1IBTF8JSFT

power cable

"$7

Cable tie

Between Indoor and Outdoor Connection cable Specications(Common in use)

Terminal Block SPEC (Indoor)

8IFOJOTUBMMJOHUIFJOEPPSVOJUJOBDPNQVUFSSPPNVTFUIF

double shielded(Tape aluminum / polyester braid + copper)

cable of FROHH2R type.

"$108&3.4$3&8

11 13

$0..6/*$"5*0/.4$3&8

 9.0

13.8

5JHIUFOJOH5PSRVFLHGtDN

M3.5 8.0~12.0

M4 12.0~18.0

J 

/·m = 10 kgf·cm

Installation Procedure

How to connect your extended power cables

1. Prepare the following tools.

Tools Crimping pliers

$POOFDUJPOTMFFWF

(mm)

Insulation tape Contraction tube (mm)

Spec .) 20xØ6.5(HxOD) 8JEUINN Y-Y0%

Shape

2. "TTIPXOJOUIFöHVSFQFFMPòUIFTIJFMETGSPNUIFSVCCFSBOEXJSFPG

the power cable.

- 1FFMPòNNPGDBCMFTIJFMETGSPNUIFQSFJOTUBMMFEUVCF

CAUTION

t "GUFSQFFMJOHPòUIFUVCFXJSFZPVNVTUJOTFSUBDPOUSBDUJPO

tube.

t 'PSJOGPSNBUJPOBCPVUUIFQPXFSDBCMFTQFDJöDBUJPOTGPS

indoor and outdoor units, refer to the installation manual.

6OJUNN

Power cable

3. Insert both sides of core wire of the power cable into the connection

TMFFWF

f Method 1

1VTIUIFDPSFXJSFJOUPUIFTMFFWFGSPNCPUITJEFT

$POOFDUJPOTMFFWF

f Method 2

5XJTUUIFXJSFDPSFTUPHFUIFSBOEQVTIJUJOUPUIFTMFFWF

$POOFDUJPOTMFFWF

4. 6TJOHBDSJNQJOHUPPMDPNQSFTTUIFUXPQPJOUTBOEøJQJUPWFSBOEDPNQSFTTBOPUIFSUXPQPJOUTJOUIFTBNF

location.

- The compression dimension should be 8.0.

- "GUFSDPNQSFTTJOHJUQVMMCPUITJEFTPGUIFXJSFUPNBLFTVSFJUJTöSNMZQSFTTFE

Compression

dimension

f Method 1

Compress it 4 times.

5 mm

f Method 2

Compress it 4 times.

5 mm

ENGLISH

5. 8SBQJUXJUIUIFJOTVMBUJPOUBQFUXJDFPSNPSFBOEQPTJUJPOZPVSDPOUSBDUJPOUVCFJOUIFNJEEMFPGUIFJOTVMB

tion tape.

"UPUBMPGUISFFPSNPSFMBZFSTPGJOTVMBUJPOJTSFRVJSFE

f Method 1

40 mm

Insulation tape

f Method 2

Insulation tape

35 mm

6. "QQMZIFBUUPUIFDPOUSBDUJPOUVCFUPDPOUSBDUJU

Contraction tube

 "GUFSUVCFDPOUSBDUJPOXPSLJTDPNQMFUFEXSBQJUXJUIUIFJOTVMBUJPOUBQFUPöOJTI

CAUTION

t Make sure that the connection parts are not exposed to outside.

t #FTVSFUPVTFJOTVMBUJPOUBQFBOEBDPOUSBDUJPOUVCFNBEFPGBQQSPWFESFJOGPSDFEJOTVMBUJOHNBUFSJBMT

UIBUIBWFUIFTBNFMFWFMPGXJUITUBOEWPMUBHFXJUIUIFQPXFSDBCMF$PNQMZXJUIUIFMPDBMSFHVMBUJPOT

on extensions.)

Insulation tape

t *ODBTFPGFYUFOEJOHUIFFMFDUSJDXJSFQMFBTF%0/05VTFBSPVOETIBQFE1SFTTJOHTPDLFU

- *ODPNQMFUFXJSFDPOOFDUJPOTDBODBVTFFMFDUSJDTIPDLPSBöSF

WARNING

Step 1. Entering mode to set option

 1. 3FNPWFCBUUFSJFTGSPNUIFSFNPUFDPOUSPMMFS

2. *OTFSUCBUUFSJFTBOEFOUFSUIFPQUJPOTFUUJOHNPEFXIJMFQSFTTJOH)JHI5FNQCVUUPOBOE-PX5FNQCVUUPO

3. $IFDLJGZPVIBWFFOUFSFEUIFPQUJPOTFUUJOHTUBUVT

Step 2. The procedure of option setting

 "GUFSFOUFSJOHUIFPQUJPOTFUUJOHTUBUVTTFMFDUUIFPQUJPOBTMJTUFECFMPX

0QUJPOTFUUJOHJTBWBJMBCMFGSPN4&(UP4&(

t 4&(4&(4&(4&(BSFOPUTFUBTQBHFPQUJPO

t 4FUUIF4&(_4&(4&(_4&(BT0/TUBUVTBOE4&(_4&(_BT0''TUBUVT

4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&(

0XXXXX1XXXXX

4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&( 4&(

2XXXXX3XXXXX

The procedure of setting option

Setting an indoor unit address and installation option

Set the indoor unit address and installation option with remote controller option.

4FUUIFFBDIPQUJPOTFQBSBUFMZTJODFZPVDBOOPUTFUUIF"%%3&44TFUUJOHBOEJOEPPSVOJUJOTUBMMBUJPOTFUUJOHPQUJPOBUUIF

TBNFUJNF:PVOFFEUPTFUUXJDFXIFOTFUUJOHJOEPPSVOJUBEESFTTBOEJOTUBMMBUJPOPQUJPO

0O4&(_ 0ò4&(_

J The display of the remote controller may be different depending on the model.

High Temp

Button

High Fan Button

Mode change

-PX5FNQ

Button

-PX'BO#VUUPO

Entering mode for

setting option

Option setting

mode

MR-DC00, MR-DH00

High Temp

Button

High Fan Button

Mode change

-PX5FNQ

Button

-PX'BO#VUUPO

Entering mode for

setting option

Option setting

mode

MR-EC00, MR-EH00

ENGLISH

Option setting 4UBUVTW

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

2. Setting Cool mode

1SFTT.PEFCVUUPOUPCFDIBOHFEUP$PPMNPEFJOUIF0/TUBUVT

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

4. Setting Dry mode

1SFTT.PEFCVUUPOUPCFDIBOHFEUP%3:NPEFJOUIF0/TUBUVT

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

6. Setting Fan mode

1SFTT.PEFCVUUPOUPCFDIBOHFEUP'"/NPEFJOUIF0/TUBUVT

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

8. Setting Heat mode

1SFTT.PEFCVUUPOUPCFDIBOHFEUP)&"5NPEFJOUIF0/TUBUVT

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

4FUUJOH"VUPNPEF

1SFTT.PEFCVUUPOUPCFDIBOHFEUP"650NPEFJOUIF0''TUBUVT

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

4&( 4&(

4&(

4&(

4&(

4&(

4&(

4&(

4&(

4&(

4&(

4&(

Setting an indoor unit address and installation option

Option setting Status

12. Setting Cool mode

Press Mode button to be change to Cool mode in the OFF status.

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

14. Setting Dry mode

Press Mode button to be change to Dry mode in the OFF status.

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

16. Setting Fan mode

Press Mode button to be change to Fan mode in the OFF status.

4FUUJOH4&(4&(PQUJPO

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

18. Setting Heat mode

1SFTT.PEFCVUUPOUPCFDIBOHFUP)&"5NPEFJOUIF0''TUBUVT

4FUUJOH4&(4&(NPEF

1SFTT-PX'BOCVUUPO

UPFOUFS4&(WBMVF

Press High Fan button(

UPFOUFS4&(WBMVF

&BDIUJNFZPVQSFTTUIFCVUUPO

will be selected in rotation.

4&(

4&(

4&(

4&(

4&(

4&(

4&(

4&(

Step 4. Input option

Press operation button

with the direction of remote control for set.

For the correct option setting, you must input the option twice.

Step 5. Check operation

3FTFUUIFJOEPPSVOJUCZQSFTTJOHUIF3&4&5CVUUPOPGJOEPPSVOJUPSPVUEPPSVOJU

2. Take the batteries out of the remote controller and insert them again and then press the operation button.

Step 3. Check the option you have set

 "GUFSTetting option, press

button to check whether the option code you input is correct or not.

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Samsung NS1254PXEA User manual

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