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LG MULTI V IV PRO ARUN080LLS4, Installation Manual

The LG MULTI V IV PRO ARUN080LLS4 is a state-of-the-art air conditioning system. For easy installation and setup, make sure to obtain the free Installation Manual from our website. Our user-friendly interface allows you to instantly download the manual, ensuring a seamless experience with your new LG air conditioning unit. manualshive.com

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25

E

N

G

L

IS

H

Single outdoor unit

R

(L1)

S

(L2)

T

(L3)

N

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Outdoor Unit] 

[Indoor Units] 

Outdoor

Power supply

3Ø 4-wire

Indoor

Power supply

(1

Ø

 2-wire)

(Main Switch)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

3

4

3

4

3

4

Master
Outdoor
Unit

SODU.B  SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

R

(L1)

S

(L2)

T

(L3)

N

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Outdoor Unit] 

[Indoor Units] 

Outdoor

Power supply

3Ø 4-wire

Indoor

Power supply

(1

Ø

 2-wire)

(Main Switch)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

3

4

3

4

3

4

Master
Outdoor
Unit

SODU.B  SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

[Heat Pump]
Between Indoor and Master Outdoor unit

The GND terminal at the

main PCB is a ‘-’ terminal

for day contact, it is not

the point to make ground

connection.

WARNING

• Indoor Unit ground wires are required for preventing electrical

shock accident during current leakage, Communication disorder by

noise effect and motor current leakage (without connection to

pipe).

• Don't install an individual switch or electrical outlet to disconnect

each of indoor unit separately from the power supply.

• Install the main switch that can interrupt all the power sources in an

integrated manner because this system consists of the equipment

utilizing the multiple power sources.

• If there exists the possibility of reversed phase, lose phase, mo-

mentary blackout or the power goes on and off while the product is

operating, attach a reversed phase protection circuit locally. Run-

ning the product in reversed phase may break the compressor and

other parts.

!

Frequency

Voltage range(V)

Outdoor

Indoor

60Hz

380V

220V

50Hz

380-415V 220-240V

Series outdoor units
When the power source is connected In

series between the units.

When the power source is supplied to each outdoor unit individually.

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Master] 

[Indoor Units] 

Outdoor

Power supply

(3Ø 4-wire)

Indoor

Power supply

(1Ø 2-wire)

(Main Switch)

[Slave1] 

[Slave2] 

[Slave3] 

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Master] 

[Indoor Units] 

Outdoor

Power supply

(3Ø 4-wire)

Indoor

Power supply

(1Ø 2-wire)

(Main Switch)

[Slave1] 

[Slave2] 

[Slave3] 

Switch 

Fuse 

Switch 

Fuse 

Switch 

Fuse 

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

[Outdoor Units]

[Outdoor Units]

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Master] 

[Indoor Units] 

Outdoor

Power supply

(3Ø 4-wire)

Indoor

Power supply

(1Ø 2-wire)

(Main Switch)

[Slave1] 

[Slave2] 

[Slave3] 

Switch 

Fuse 

L 

N 

Communication cable

(2-Wires Cable) 

Power cable

(4-Wires Cable) 

Communication cable

(3-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

Power cable

(2-Wires Cable) 

[Master] 

[Indoor Units] 

Outdoor

Power supply

(3Ø 4-wire)

Indoor

Power supply

(1Ø 2-wire)

(Main Switch)

[Slave1] 

[Slave2] 

[Slave3] 

Switch 

Fuse 

Switch 

Fuse 

Switch 

Fuse 

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

Pull Box
(Installer option)

[Outdoor Units]

[Outdoor Units]

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

R

(L1)

S

(L2)

T

(L3)

N

WARNING

When the total capacity is over than as follow, the power source

do not use in series between the units.
The First terminal block could be burnt out. (Heat Pump : 68 Hp)

!

Frequency

Voltage range(V)

Outdoor

Indoor

60Hz

380V

220V

50Hz

380-415V 220-240V

Frequency

Voltage range(V)

Outdoor

Indoor

60Hz

380V

220V

50Hz

380-415V 220-240V

Slave1
Outdoor Unit

Master 
Outdoor unit

Slave2
Outdoor Unit

Slave3
Outdoor Unit

3

4

3

4

3

4

SODU.B SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

SODU.B SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

SODU.B SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

SODU.B SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

SODU.B SODU.A

IDU.B

IDU.A

CEN.B

CEN.A

DRY1

DRY2

GND

12V

Master

Outdoor Unit

[Heat Pump]
Between Indoor and Master Outdoor unit

The GND terminal at the main PCB is a ‘-’ terminal for dry contact.
It is not the point to make ground connection.
- Make sure that terminal number of master and slave outdoor units

are matched.(A-A,B-B)

WARNING

• Indoor Unit ground wires are required for preventing electrical

shock accident during current leakage, Communication disorder by

noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect

each of indoor unit separately from the power supply.

• Install the main switch that can interrupt all the power sources in an

integrated manner because this system consists of the equipment

utilizing the multiple power sources.

• If there exists the possibility of reversed phase, lose phase, mo-

mentary blackout or the power goes on and off while the product is

operating, attach a reversed phase protection circuit locally.

Running the product in reversed phase may break the compressor

and other parts.

!

Field Wiring

Summary of Contents for MULTI V IV PRO ARUN080LLS4

Page 1: ...lease retain this installation manual for future reference after reading it thoroughly 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 ENGLISH ITALIANO ESPAÑOL FRANÇA...

Page 2: ...mproper installation by the user may result in water leakage electric shock or fire Always ground the product There is risk of fire or electric shock Always intstall a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock For re installation of the installed product al ways contact a dealer or an Authorized Serv ice Center There is risk of fire electric sho...

Page 3: ...d fire or electric shock may result If the air conditioner is installed in a small room measures must be taken to prevent the refrigerant concentration from exceed ing the safety limit when the refrigerant leaks Consult the dealer regarding the appropri ate measures to prevent the safety limit from being exceeded Should the refriger ant leak and cause the safety limit to be ex ceeded harzards due ...

Page 4: ...nser and evaporator fins could cause product mal function or inefficient operation Operation Do not use the air conditioner in special en vironments Oil steam sulfuric smoke etc can signifi cantly reduce the performance of the air conditioner or damage its parts Do not block the inlet or outlet It may cause failure of appliance or acci dent Make the connections securely so that the outside force o...

Page 5: ...atic pressure compensation mode 28 Night Low Noise Function 29 Overall defrost mode 29 Setting the ODU address 29 Snow removal rapid defrost 30 Target pressure adjusting 30 High Efficiency cooling mode 30 Auto dust removal mode 31 Smart Load Control 31 Comfort Cooling Function 32 Self Diagnosis Function 35 CAUTION FOR REFRIGERANT LEAK 35 Introduction 35 Checking procedure of limiting concentration...

Page 6: ...on for two or more combination 5 The numbers in parentheses means maximum connectable indoor units in accordance with outdoor units combination Power Supply 380 415V 50Hz Model Name ARUN LLS4 ARUN LLN4 n Standard Model CAUTION ARUN220LLN4 Single Unit model can guarantee the opera tion only within 160 combination ratio Combination Ratio 50 200 OUTDOOR UNITS INFORMATION Number of Outdoor units Combi...

Page 7: ...2 193 1 571 2 425 1 1 240 1 680 760 2 920 1 680 760 1 48 13 16 66 5 32 29 29 32 x2 36 7 32 66 5 32 29 29 32 1 Ø 19 05 3 4 Ø 41 3 1 5 8 Unit 3 Outdoor Unit System HP Model Combination Unit Independent Unit Refrigerant Precharged Amount kg lbs Numberofmaxmumconnectableindoorunits Net Weight kg lbs Dimensions WxHxD mm inch Piping Conections mm inch mm inch 56 ARUN560LLS4 ARUN200LLS4 ARUN200LLS4 ARUN1...

Page 8: ... must not be used Do not heat pipes more than necessary to prevent them from softening Be careful not to install wrongly to minimize economic loss be cause it is expensive in comparison with R22 n Space Saving Model Unit 4 Outdoor Unit System HP Model Combination Unit Independent Unit Refrigerant Precharged Amount kg lbs Numberofmaxmumconnectableindoorunits Net Weight kg lbs Dimensions WxHxD mm in...

Page 9: ...o limit to the height of the wall A E B F C D A E B F C D E A B F C D Front Front Front Front Front Front A A E E B B D D A C B D Front Front E E C C A E B F C D A E B F C D A E B A B E h2 h1 1500 A B 500 Front Front Front Front No limit to the height of the wall Front No limit to the height of the wall A E B F C D A E B F C D E A B F C D Front Front Front Front Front Front A E B D A C B D Front F...

Page 10: ...d Support of the bottom side of the outdoor unit Base Pan before fixing the bolt It may cause the unstable state of the outdoor settlement and may cause freezing of the heat exchanger resulting in abnormal operations Be sure to remove the Pallet Wood Support of the bottom side of the outdoor unit before welding Not removing Pal let Wood Support causes hazard of fire during welding WARNING Install ...

Page 11: ...l tool 3 Make sure to tighten the cap securely Pipe size Tightening torque N m A mm Flare shape Ø9 52 38 4 12 8 13 2 90 2 45 2 A R 0 4 0 8 Ø12 7 55 6 16 2 16 6 Ø15 88 75 7 19 3 19 7 CAUTION Always use a charge hose for service port connection After tightening the cap check that no refrigerant leaks are present When loosening a flare nut always use two wrenches in combination When connecting the pi...

Page 12: ...rogen pressure 0 02 MPa Oxygen Promotes oxidative degradation of refrig erant oil Because it is flammable it is strictly prohibited to use Carbon dioxide Degrade the drying characteristics of gas Chevron Gas Toxic gas occurs when exposed to direct flame 2 Always use a pressure reducing valve 3 Please do not use commercially available antioxidant The residual material seems to be the oxide scale is...

Page 13: ...maining refrigerant or air inside using the service port Remove the leakage prevention cap Method of drawing out pipes on the bottom side Drawing out common pipe through side panel Left Side Pipe Draw Out Front Pipe Draw Out Right Side Pipe Draw Out Refrigerant Pipe Regulator Nitrogen Taping Valve Nitrogen Nitrogen Direction Direction Nitrogen Direction Removal Area for Liquid Gas pipe bottom side...

Page 14: ... F E L 165 m l 40 m 90 m Conditional application ODU Capacity Master Slave1 Slave2 Slave3 30 m Master Slave3 Slave1 Slave2 h1 10 m or less H 90 m L 165 m 40 m Master Slave3 Slave1 Slave2 ODU Capacity Master Slave1 Slave2 Slave3 30 m G G G h1 F F E E F E h See Table 2 A Refrigerant pipe diameter from outdoor unit to first branch E Refrigerant pipe diameter for outdoor unit capacity Slave 1 Slave 2 ...

Page 15: ...3 8 Ø22 2 7 8 WARNING In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A B should be of the same size with A Ex In case indoor unit combination ratio 120 is connected to 24HP 67 2 kW outdoor unit 1 Outdoor unit main pipe diameter A Ø34 9 Gas pipe Ø15 88 liquid pipe 2 Pipe diameter B after first branch according to 120 indoor unit combination 80 6 kW Ø34...

Page 16: ...indoor unit Toward indoor unit Toward indoor unit Toward indoor unit Pipe inclination 2 or more Toward indoor unit Toward indoor unit Toward indoor unit Toward indoor unit Toward indoor unit Toward indoor unit Example 1 Example 2 Example 3 Apply Oil Trap as shown below when the length of the pipe between the outdoor units is more than 2 m Otherwise the unit may not op erate properly Example 1 h h ...

Page 17: ...mount of refrigerant leakage should satisfy the following equation for human safety If the above equation can not be satisfied then follow the follow ing steps Selection of air conditioning system select one of the next Installation of effective opening part Reconfirmation of Outdoor Unit capacity and piping length Reduction of the amount of refrigerant Installation of 2 or more security device al...

Page 18: ...nnec tion then cap pipes should be fitted to the surplus branches Fit branch pipe lie in a horizontal plane Pinched pipe B Horizontal plane View from point B in the direction of the arrow Y branch Header A B To Outdoor Unit To Branch Piping or Indoor Unit A B Facing upwards Facing downwards Within 3 Within 3 Viewed from point A in direction of arrow Horizontal plane Within 10 A Insulator included ...

Page 19: ...D38 1 O D15 88 O D28 58 90 2 3 3 3 2 2 3 416 444 96 O D15 88 I D9 52 I D12 7 O D12 7 I D6 35 I D9 52 I D15 88 I D19 05 I D22 2 I D22 2 I D19 05 I D15 88 I D12 7 I D15 88 I D19 05 I D22 2 O D19 05 80 11 0 11 0 2 3 1 2 3 3 I D19 05 O D15 88 I D12 7 I D15 88 I D12 7 I D15 88 I D15 88 I D12 7 292 281 74 70 ARBLN 23220 unit mm I D12 7 O D9 52 I D6 35 I D9 52 I D 9 52 I D 6 35 I D9 52 I D 6 35 292 281 7...

Page 20: ...or 2 hrs give pressure to the system to 0 05MPa vacuum break with nitrogen gas and then evacuate it again with the vacuum pump for 1hr to 100 7kPa vacuum drying If the system cannot be evacuated to 100 7kPa within 2 hrs repeat the steps of vacuum break and its drying Finally check if the vacuum gauge does not rise or not after maintaining the system in vacuum for 1 hr Scale Use a graviometer One t...

Page 21: ...Lagging Ⓓ Caulking material Ⓔ Band Ⓕ Waterproofing layer Ⓖ Sleeve with edge Ⓗ Lagging material Ⓘ Mortar or other incombustible caulking Ⓙ Incombustible heat insulation material When filling a gap with mortar cover the penetration part with steel plate so that the insulation material will not be caved in For this part use incom bustible materials for both insulation and covering Vinyl covering shou...

Page 22: ...wer terminal block Slack in the power wiring may cause abnormal heat When connecting cable which is the same thickness do as shown in the figure below For wiring use the designated power cable and connect firmly then secure to prevent outside pressure being exerted on the terminal block Use an appropriate screwdriver for tightening the terinal screws A screwdriver with a small head will strip the ...

Page 23: ...equirements should adhere to the wiring regulations of the region Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord Don t install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply CAUTION Some installation site may require attachment of an earth leakage breaker If no...

Page 24: ...sary that the equipment is connected only to a supply with respectively Zsys less than or equal to Zmax and Ssc greater than or equal to the minimum Ssc value 1 European International Technical Standard setting the limits for voltage changes voltage fluctuations and flicker in public low voltage supply systems for equipment with rated current 75 A 2 European International Technical Standard settin...

Page 25: ...ion Pull Box Installer option Pull Box Installer option Outdoor Units R L1 S L2 T L3 N Switch Fuse L N Communication cable 2 Wires Cable Power cable 4 Wires Cable Communication cable 3 Wires Cable Power cable 2 Wires Cable Power cable 2 Wires Cable Power cable 2 Wires Cable Power cable 2 Wires Cable Power cable 2 Wires Cable Master Indoor Units Power supply 3Ø 4 wire Indoor Power supply 1Ø 2 wire ...

Page 26: ...er terminal block Ground wire Power Ground cable Over 50 mm gap Communication cable Main power terminal block Ground wire Power Ground cable Over 50 mm gap Communication cable Fix firmly not to be displaced Main power terminal block Insulation sleeves attachments ODU IDU Communication cable ODU ODU Communication cable Fix firmly not to be displaced Insulation sleeves attachments Main power termina...

Page 27: ...option Change the set value blank save in EEPROM Static pres sure com pensation oFF op1 op3 Selected the option Change the set value blank save in EEPROM Night low noise oFF op1 op15 Selected the option Change the set value blank save in EEPROM Overall de frost on oFF Selected the option Always Overrall defrost on blank Save in EEPROM ODU ad dress 0 254 set the value Change the set value blank Sav...

Page 28: ...ng Button Func Push the button Select the Function using Button Fn2 Push the button Select the Option using Button op1 Push the button Start the Static pressure compensation mode Save the selected option value in EEPROM Capacity 8 14 HP 16 22 HP Max RPM Standard 730 950 op1 800 1000 op2 820 op3 850 Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Func...

Page 29: ...aster unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn6 Push the button Select the Option using Button oFF op1 op3 Push the button Mode is set CAUTION Ask an authorized technician to setting a function If do not use a function set an oFF mode Mode setting setting Mode oFF Not setting op1 Snow removal mode op2 Rapid defrost mode op3 S...

Page 30: ...power consumption Decrease power consumption 4 5 C 2 5 C op4 Decrease power consumption Decrease power consumption 6 5 C 4 5 C op5 Decrease power consumption Decrease power consumption 8 5 C 6 5 C op6 Decrease power consumption Decrease power consumption 10 5 C 8 5 C Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn9 Push the b...

Page 31: ...IP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn14 Push the button Select the Option using Button oFF op1 op3 Push the button Smart Load Control is set CAUTION Ask an authorized technician to setting a function If use a function first install a Central controller According to the difference of indoor temperature and setting tempera ture switch...

Page 32: ...indoor unit is open or short 0 9 Indoor EEPROM Error In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF 1 0 Poor fan motor operation Disconnecting the fan motor connector Failure of indoor fan motor lock 1 7 Inlet Air temperature sensor of FAU Air temperature sensor of indoor unit is open or short Outdoor unit related error 2 1 Master Outdoor Unit Inverter Compressor IPM...

Page 33: ... Out door Unit 5 2 Communication error inverter PCB Main PCB Failing to receive inverter signal at main PCB of Master Outdoor Unit 5 3 Communication error indoor unit Main PCB of Outdoor Unit Failing to receive indoor unit signal at main PCB of Outdoor Unit 5 7 Communication error Main PCB inverter PCB Failing to receive signal main PCB at inverter PCB of Master Out door Unit 5 9 Mixing Installati...

Page 34: ...ure Sensor Error 1 1 6 Master Outdoor Unit Oil Level Sensor Error Oil Level Sensor of Master Outdoor Unit is open or short 1 4 5 Master outdoor unit Main Board External Board communication Error Master outdoor unit Main Board External Board communication Error 1 5 1 Failure of operation mode conversion at Master Outdoor Unit Failure of operation mode conversion at Master Outdoor Unit 1 5 3 Master ...

Page 35: ...e In case one refrigerant facility is divided into 2 or more refrigerant systems and each system is independent amount of replenished refrigerant of each system shall be adopted Outdoor unit Indoor unit Outdoor unit Indoor unit Opening Partition In the case of opening without door or 0 15 or more openings to floor space both above and below door Amount of replenished refrigerant per one outdoor un...

Page 36: ... the seaside direct expo sure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea wind direction Sea wind Sea wind Sea wind Windbreak Product Name Air conditioner Model Name Additional information Serial number is refer to the bar code on the product Product Sales Name Model Factory Name ARUx LLS4 series x N B Heat pump V Cooling only Numeric Cooling capacity...

Page 37: ......

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