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Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.

CEILING CONCEALED DUCT

Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared

Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,

Changwon-si, Gyeongsangnam-do, KOREA

INSTALLATION MANUAL

AIR

CONDITIONER

www.lg.com

Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved.

MFL68821904

Rev.01_040219

ENGLISH

IT

ALIANO

ESP
AÑOL

FRANÇAIS

УКРАÏНСЬКА

ҚАЗАҚ ТІЛІ

БЕЛАРУСКАЯ МОВА

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ZBEK TILI

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERL

ANDS

POL

SKI

LIMBA ROMÂNĂ

РУССКИЙ ЯЗЫК

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Summary of Contents for Multi V Series

Page 1: ...tive LG Electronics Inc EU Representative LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA INSTALLATION MANUAL AIR CONDITIONER www lg com Copyright 2017 2019 LG Electronics Inc All Rights Reserved MFL68821904 Rev 01_040219 ENGLISH ITALIANO ...

Page 2: ...ion 12 Ceiling dimension and hanging bolt location 13 Indoor Unit Installation 13 Wiring Connection 14 Checking the Drainage 15 Indoor Unit Drain Piping 17 DIP Switch Setting 18 Group Control Setting 23 Model Designation 23 Airborne Noise Emission 23 Limiting concentration 24 HOW TO SET E S P TABLE OF CONTENTS ...

Page 3: ...t vents Air outlet vents Accessory Features Name Drain hose Clamp metal Washer for hanging bracket Clamp Tie Wrap Insulation for fitting Quantity 1 EA 2 EA 8 EA 4 EA 1 SET Shape Other Owner s manual Installation manual for gas pipe for liquid pipe Installation Tool ...

Page 4: ...t the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation ma...

Page 5: ...e Do not compress air or Oxygen and Do not use Flammable gases Otherwise it may cause fire or explosion There is the risk of death injury fire or explosion Have all electric work done by a licensed electrician according to Electric Facility Engineering Standard and Interior Wire Regulations and the instructions given in this manual and always use a special circuit If the power source capacity is i...

Page 6: ... Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds smell or smoke comes from product Turn the breaker off or disconnect the power supply cable Ther...

Page 7: ...e means to accelerate the defrosting process or to clean other than those recommended by the manufacturer Do not pierce or burn refrigerant cycle part Be aware that refrigerants may not contain an odour Installation Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drai...

Page 8: ...mit refrigerant to flow between the refrigerating system parts Dismantling the unit treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards Operation Do not expose the skin directly to cool air for long periods of time Don t sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods...

Page 9: ...e of batteries in a fire They may burn or explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote if the batteries have leaked The chemicals in batteries could cause burns or other health hazards If you eat the liquid from the batteries brush your teeth and see doctor Do not use the remote if the batteries have leaked The chemical...

Page 10: ...d completely then follow step by step Front view Unit mm Unit mm Top view Front Inspection hole 1 600 x 600 Inspection hole 2 600 x 600 Control box 1 000 Air outlet vents Air inlet vents 600 600 More than 20 Selection of the best location CAUTION In case that the unit is installed near the sea the installation parts may be corroded by salt The installation parts and the unit should be taken approp...

Page 11: ... 8 197 70 5 214 51 5 2 232 02 5 4 250 21 5 6 269 09 5 8 288 65 6 308 90 6 2 329 84 6 4 351 46 6 6 373 77 6 8 396 76 7 420 45 7 2 444 81 7 4 469 87 7 6 495 61 7 8 522 04 Wall mounted m kg Amin m2 1 224 1 224 1 43 1 4 1 87 1 6 2 44 1 8 3 09 2 3 81 2 2 4 61 2 4 5 49 2 6 6 44 2 8 7 47 3 8 58 3 2 9 76 3 4 11 02 3 6 12 36 3 8 13 77 4 15 25 4 2 16 82 4 4 18 46 Wall mounted m kg Amin m2 4 6 20 17 4 8 21 9...

Page 12: ...ng dispersing of water drops etc In these cases take the following actions Make sure that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oil steam 2 Avoid ...

Page 13: ...anel 2 First fasten the steel clamp with a screw to the inner boss of control panel 3 For the cooling model fix the other side of the clamp with a screw strongly For the heat pump model put the 0 75 mm2 cable thinner cable on the clamp and tighten it with a plastic clamp to the other boss of the control panel Terminal Block Indoor 1 L 2 N Terminal Block Indoor 3 4 INDOOR POWER INPUT Terminal Block...

Page 14: ... INDOOR UNIT THERMAL INSULATION Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Local supply Hose clip for thermal insulator Local supply Liquid pipe Refrigerant pipe and thermal insulation Local supply Union for gas pipe Insulation Local supply Clamp for insulation Local supply CAU...

Page 15: ...itioner uses a drain pump to drain water Use the following procedure to test the drain pump operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operation and noise when electrical wiring is complete When the test is complete c...

Page 16: ...e to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equi...

Page 17: ...W6 Heater linkage N A Off SW7 Ventilator linkage Selection of Ventilator linkage Linkage Removal Working Off Vane selection Console Selection of up down side Vane Up side Down side Vane Up side Vane Only Region selection Selection tropical region General model Tropical model SW8 Etc Spare Off 1 Indoor Unit 2 Outdoor Unit In case that the products meet specific conditions Auto addressing function c...

Page 18: ...ss remote controller 1 It is possible to 16 indoor units Max by one wired remote controller Set only one indoor unit to Master set the others to Slave 2 It is possible to connect with every type of indoor units 3 It is possible to use wireless remote controller at the same time 4 It is possible to connect with Dry Contact and Central controller at the same time The Master indoor unit is possible t...

Page 19: ...etting of master and slave h In case of Group Control it is possible to use following functions Selection of operation stop or mode Temperature setting and room temperature check Current time change Control of flow rate High Middle Low Reservation settings It is not possible to use some functions h It is possible to control 16 indoor units Max with the master wired remote control h Other than thos...

Page 20: ...andard FAU FAU Standard Standard FAU FAU Fresh Air Intake Unit Standard Standard Indoor Unit h In case of connecting with standard indoor unit and Fresh Air Intake Unit separate Fresh Air Intake Unit with standard units N M 16 Because setting temperature are different h Other than those it is same with Group Control 1 3 Group Control 3 n Mixture connection with indoor units and Fresh Air Intake Un...

Page 21: ...t only one indoor unit to Master set the others to Slave Set only one wired remote controller to Master set the others to Slave 2 Every types of indoor unit is possible to connect two remote controller 3 It is possible to use wireless remote controller at the same time 4 It is possible to connect with Dry Contact and Central controller at the same time 5 In case that any error occurs at indoor uni...

Page 22: ...ies Indoor unit 2 EA Wired remote controller Indoor unit 1 EA Wired remote controller 2 EA h PZCWRCG3 cable used for connection h PZCWRC2 cable used for connection Slave Master Master PZCWRC G3 Master Slave PZCWRC 2 CAUTION Apply totally enclosed noncombustible conduit in case of local building code Requiring plenum cable usage ...

Page 23: ...s in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation n Calculate refrigerant concentration Refrigerant concentration Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 Limiting concentration ARN U G 07 A M1 4 Serial Number Chassis ...

Page 24: ...7 5 15 0 12 0 95 19 0 16 7 13 7 10 7 100 20 6 18 5 15 5 12 5 105 22 1 20 3 17 3 14 3 11 1 110 23 7 22 1 19 0 16 1 13 1 10 0 115 23 8 20 8 17 9 15 1 12 2 120 22 6 19 7 17 1 14 3 11 3 125 21 5 19 1 16 5 13 6 11 9 130 23 3 21 2 18 7 15 8 14 3 135 23 2 20 8 18 0 16 7 140 23 0 20 3 19 1 145 22 5 21 5 150 23 8 Setting value Static Pressure mmAq Pa 2 5 25 4 39 6 59 8 78 10 98 12 118 14 137 15 147 85 16 8...

Page 25: ... 8 9 2 3 8 105 35 9 31 7 24 1 17 5 6 7 110 38 6 34 7 30 5 22 2 11 5 5 5 115 40 1 37 8 33 8 27 9 20 2 9 1 120 39 1 37 1 31 4 24 6 17 9 7 5 125 38 5 35 0 30 1 21 2 11 0 6 7 130 37 1 32 0 27 6 15 6 10 0 135 36 8 31 5 24 3 16 2 140 40 5 35 9 29 8 22 4 145 39 9 34 9 27 8 150 39 4 34 2 155 37 1 Setting value Static Pressure mmAq Pa 4 39 6 59 8 78 10 98 12 118 14 137 16 157 18 177 65 4 7 70 10 3 75 15 0 ...

Page 26: ...CMM Unit CMM M3 Chassis 18 24 28 k M2 Chassis 42 k Unit CMM Setting value Static Pressure mmAq Pa 4 39 6 59 8 78 10 98 12 118 14 137 16 157 18 177 90 23 0 95 25 9 19 1 100 28 6 23 3 105 31 4 26 4 19 6 110 34 2 29 9 24 2 115 36 6 32 7 28 8 21 7 120 39 2 35 7 31 8 26 2 19 6 125 41 7 38 5 34 8 30 8 24 3 130 44 0 41 2 37 7 34 1 29 0 22 3 135 43 8 40 7 37 4 32 6 27 5 20 5 140 43 5 40 4 37 2 32 6 25 8 1...

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