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52

ELECTRICAL WIRING

ENGLISH

Caution

- Follow ordinance of your governmental organization for technical standard related to electrical

equipment, wiring regulations and guidance of each electric power company.

- Install the Outdoor Unit communication cable away from the power source wiring so that it is not

affected by electric noise from the power source. (Do not run it through the same conduit.)

- Be sure to provide designated grounding work to Outdoor Unit.

- Give some allowance to wiring for electrical part box of Indoor and Outdoor Units, because the

box is sometimes removed at the time of service work.

- Never connect the main power source to terminal block of communication cable. If connected,

electrical parts will be burnt out.

- Use 2-core shield cable for communication cable.(O mark in the figure below) If communication

cable of different systems are wired with the same multicore cable, the resultant poor
transmitting and receiving will cause erroneous operations. ( mark in the figure below)

- Only the communication cable specified should be connected to the terminal block for Outdoor

Unit communication.

CAUTION

!

Be sure to correct the outdoor unit to earth. Do not connect ground wire to any gas pipe, liquid
pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock.

2-Core Shield Cable

Multi-Core Cable

Remote

control

Remote

control

Remote

control

Remote

control

Indoor

Unit

Outdoor Unit

Outdoor Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Outdoor Unit

Outdoor Unit

Remote

control

Remote

control

Indoor

Unit

Indoor

Unit

Remote

control

Remote

control

Indoor

Unit

Indoor

Unit

WARNING

!

Be sure to have authorized electrical engineers do the electric work using special circuits in
accordance with regulations and this installation manual. If power supply circuit has a lack of
capacity or electric work deficiency, it may cause an electric shock or fire.

ELECTRICAL WIRING

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Summary of Contents for ARUN040GSS0

Page 1: ...ly 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 Copyright 2014 2020 LG Electronics Inc All Rights Reserved ENGLISH ESPAÑOL PORTUGUÊS ...

Page 2: ...conditioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You ca...

Page 3: ...thorized Service Center There is risk of fire electric shock explosion or injury Do not install remove or re install the unit by yourself customer There is risk of fire electric shock explosion or injury Do not store or use flammable gas or combustibles near the air conditioner There is risk of fire or failure of product Use the correctly rated breaker or fuse There is risk of fire or electric sho...

Page 4: ...res must be taken to prevent the refrigerant concentration from exceeding the safety limit when the refrigerant leaks Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded Should the refrigerant leak and cause the safety limit to be exceeded hazards due to lack of oxygen in the room could result Operation Do not damage or use an unspecified power cab...

Page 5: ...ir conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting Do not install the product where it is exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operation Do not use the air conditioner in special e...

Page 6: ...he air conditioner with the panels or guards removed Rotating hot or high voltage parts can cause injuries Do not directly turn off the main power switch after stopping operation Wait at least 5 minutes before turning off the main power switch Otherwise it may result in water leakage or other problems Auto addressing should be done in condition of connecting the power of all indoor and outdoor uni...

Page 7: ... Refrigerant charging 43 Distribution Method 44 Branch pipe Fitting 48 Leak Test and Vacuum drying 50 Vacuum Mode 51 Heat insulation of refrigerant piping 52 ELECTRICAL WIRING 52 Caution 54 Control box and connecting position of wiring 55 Communication and Power Cables 56 Wiring of main power supply and equipment capacity 56 Electric Characteristics 57 Field Wiring 61 Installation of IO Module opt...

Page 8: ...or switch setting Determination of division work The vacuum pump used must have a capacity of reaching at least 5 torr more than 1 hour Vacuum drying Recharge correctly as calculated in this manual and record the amount of added refrigerant Additional charge of refrigerant Make sure there are no gaps left between the facing materials used on the ceiling Fit facing panels Run each indoor unit in tu...

Page 9: ... mm inch Ø 19 05 3 4 Ø 22 2 7 8 Ø 28 58 11 8 Series Phase 5 Series 3Ø System HP 4 5 6 Refrigerant Precharged Amount kg 1 8 2 4 2 4 lbs 4 0 5 3 5 3 Net weight kg 65 72 72 lbs 143 159 159 Dimensions WxHxD mm 950 x 834 x 330 950 x 834 x 330 950 x 834 x 330 inch 37 4 x 32 8 x 13 0 37 4 x 32 8 x 13 0 37 4 x 32 8 x 13 0 Piping Connections Liquid Pipes mm inch Ø 9 52 3 8 Ø 9 52 3 8 Ø 9 52 3 8 Gas Pipes m...

Page 10: ...37 4 x 32 8 x 13 0 37 4 x 32 8 x 13 0 37 4 x 32 8 x 13 0 Piping Connections Liquid Pipes mm inch Ø 9 52 3 8 Ø 9 52 3 8 Ø 9 52 3 8 Gas Pipes mm inch Ø 15 88 5 8 Ø 15 88 5 8 Ø 19 05 3 4 Model Voltage Hz Current A C RUN040LSS0 380 415 V 3N 50 Hz 16 1 A A C RUN050LSS0 380 415 V 3N 50 Hz 16 1 A A C RUN060LSS0 380 415 V 3N 50 Hz 16 1 A A C RUN080LSS0 380 415 V 3N 50 Hz 17 0 A A C RUN100LSS0 380 415 V 3N...

Page 11: ... pipe 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 because it is expensive in comparison with R22 The refrigerant R410A has the property of higher operating pressure in comparison with R22 Therefore all materials have the characteristics of higher resisting pressure than R22 ones and this character...

Page 12: ...ing a lot of sunshine in case of installing the product at a place with a high humidity in winter near beach coast lake etc Ex Rooftop where sunshine always shines Performance of heating will be reduced and preheat time of the indoor unit may be lengthened in case of installing the outdoor unit in winter at following location Shade position with a narrow space Location with much moisture in neighb...

Page 13: ... of values is mm In case of obstacles on the suction side 1 Stand alone installation 2 Collective installation 500 or less more 1 000 or c or more a or more 500 or less more 1 000 or 150 or more 150 or more c or more 100 or more 100 or more b or more 100 or more 200 or more 1 000 or more c or more 500 or less more 1 000 or 100 or more 1 000 or more 200 or more c or more Unit mm U3 U4 U7 a 100 200 ...

Page 14: ... of obstacles on the discharge side 1 Stand alone installation a or more 500 or less more 1 000 or a or more 2 Collective installation 1 000 or more 100 or more 500 or less 1 000 or more 1 000 or more 100 or more Unit mm U3 U4 U7 a 500 700 ...

Page 15: ...igher than the unit 1 Stand alone installation H L a or more b or more L c or more 500 or less 1 000 or more H 1 000 or more 2 Collective installation L H d or more 1 000 or more 100 or more L 500 or less 1 000 or more H d or more 1 250 or more 100 or more L H L H L H L H Unit mm U3 U4 U7 a 500 700 b 350 350 c 350 350 d 350 350 ...

Page 16: ... alone installation 2 Collective installation a or more H L 1 500 or more 100 or more a or more 500 or less more 1 000 or H L 1 500 or more 100 or more H L a or more b or more c or more 500 or less more 1 000 or H L 1 000 or more L H L H L H L H Unit mm U3 U4 U7 a 1 000 1 000 b 350 350 c 350 350 ...

Page 17: ...When installing several units leave space between each block as shown below considering passage for air and people 1 One row of stand alone installation 350 or more 2 000 or more 600 or more 1 000 or more 2 Rows of collective installation 2 or more L should be smaller than H L 350 or more 3 000 or more H 600 or more 1 500 or more 100 or more L H Unit mm ...

Page 18: ...y malfunction If it is installed at snowy area attach the hood to the system Install the outdoor unit at the higher installation console by 50 cm than the average snowfall annual average snowfall if it is installed at the area with much snowfall Where snow accumulated on the upper part of the Outdoor Unit by more than 10 cm always remove snow for operation The height of H frame must be more than 2...

Page 19: ...rt may make Outdoor Unit unstable resulting in a fall Use 2 belts of at least 8 m long Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage Hoist the unit making sure it is being lifted at its center of gravity When carrying the suspended unit pass the ropes between legs of base panel under the unit Always lift the unit with ropes attached...

Page 20: ...s legs before being fixed The outdoor unit supports should have minimum height of 200 mm Anchor bolts must be inserted at least 75 mm At least 100 mm At least 100 mm At least 100 mm At least 100 mm At least 100 mm At least 100 mm Center of the Unit For outdoor units should not be supported only by the corner supports Center of the Unit a b e e c d Chassis U3 U4 U7 a 950 1 090 b 620 700 c 330 380 d...

Page 21: ...t 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 Pallet Wood Support causes hazard of fire during welding WARNING Install where it can sufficiently support the weight of ...

Page 22: ...the tubing Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper pipe in a bar in the dimension shown in the table below Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again Copper tube 90 Slanted Uneven Rough Pipe Reamer Point down Inclined Inside is shining without scratches Smoot...

Page 23: ...rn it until the shaft stops Do not apply excessive force to the shutoff valve Doing so may break the valve body as the valve is not a backseat type Always use the special tool 3 Make sure to tighten the cap securely pipe size tightening torque N m A mm flare shape Ø 9 52 38 4 12 8 13 2 90 2 45 2 A R 0 4 0 8 Ø 12 7 55 6 16 2 16 6 Ø 15 88 75 7 19 3 19 7 CAUTION Always use a charge hose for service p...

Page 24: ...hylene over 120 C the heat resistance temperature Add the insulation over 10 mm thickness at high humidity environment Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping Closing shutoff valve 1 Remove the cap and turn the valve clockwise with the hexagon wrench 2 Securely tighten the valve until the shaft contacts the main body seal 3 Make sure to tighten the cap s...

Page 25: ...t cold and warm Clogging of EEV Capillary Gas shortages Degradation of refrigerant oil Poor insulation of the compressor Do not cold and warm Countermeasure No moisture in the pipe Until the connection is completed the plumbing pipe entrance should be strictly controlled Stop plumbing at rainy day Pipe entrance should be taken side or bottom When removal burr after cutting pipe pipe entrance shoul...

Page 26: ...degradation of refrigerant 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 observed In fact due to the organic acids generate...

Page 27: ... Use hexagonal wrench to open close the valve Refrigerant Charging Port Liquid pipe Gas pipe CAUTION Please block the pipe knock outs of the front and side panels after installing the pipes Animals or foreign objects may be brought in to damage wires WARNING Always careful not to leak the refrigerant during welding The refrigerant generates poisonous gas harmful to human body if combusted Do not p...

Page 28: ...Direction Nitrogen Direction Preparation Work Use Knock Outs of Base Pan of the outdoor unit for Left Right or Bottom pipe drawing outs Removal Area for Liquid Gas pipe bottom side connections Gas pipe Liquid pipe Wet towel CAUTION Do not give damage to the pipe base during the Knock Out work Proceed to pipe work after removing burr after Knock Out work Perform sleeve work to prevent damage to the...

Page 29: ... gas pipes are locked Extract remaining refrigerant or air inside using the service port Remove the leakage prevention cap Service Port Leakage Prevention Cap Liquid pipe Refrigerant Charging Port Gas pipe Pipe Drawing Out Method of drawing out pipes on the front side and right side Proceed with the pipe work as shown in the below figure for front side and right side pipe drawing out Pipe Knock Ou...

Page 30: ...rawing out common pipe through base panel Method of drawing out pipes on the rear side Proceed with the pipe work as shown in the below figure for rear side pie drawing out Liquid pipe Gas pipe Remove only liquid gas pipe Knock out Pipe Knock Out for Liquid Gas pipes Pictures may differ depending on the model ...

Page 31: ...ction Branching section Branching pipe Pipe size of between branching sections Outdoor unit capacity HP Liquid pipe mm inch Gas pipe mm inch 4 Ø 9 52 3 8 Ø 15 88 5 8 5 Ø 9 52 3 8 Ø 15 88 5 8 6 Ø 9 52 3 8 Ø 19 05 3 4 8 Ø 9 52 3 8 Ø 19 05 3 4 10 Ø 9 52 3 8 Ø 22 2 7 8 12 Ø 12 7 1 2 Ø 28 58 1 1 8 Indoor unit capacity kW Btu h Liquid pipe mm inch Gas pipe mm inch 5 6 19 100 Ø 6 35 1 4 Ø 12 7 1 2 16 0 5...

Page 32: ...8 Ø 22 2 7 8 Y branch method Example 5 Indoor Units connected Ⓐ Outdoor Unit Ⓑ 1st branch Y branch Ⓒ Indoor Units L 150 m H 50 m 15 m l 40 m Refrigerant piping system Total pipe length A B C D a b c d e 300 m L Longest pipe length Equivalent pipe length A B C D e 150 m A B C D e 175 m l Longest pipe length after 1st branch B C D e 40 m H Difference in height Outdoor Unit Indoor Unit H 50 m 40 m Ou...

Page 33: ...nected Ⓐ Outdoor Unit Ⓑ 1st branch Y branch Ⓒ Indoor Units L 80 m H 30 m l 40 m Total pipe length A B C D a b c d e 300 m L Longest pipe length Equivalent pipe length A B C D e 80 m A B C D e 100 m l Longest pipe length after 1st branch B C D e 40 m H Difference in height Outdoor Unit Indoor Unit H 30 m 20 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 1...

Page 34: ...ons are satisfied the diameter of main pipe A must be increased according to below table The equivalent length between outdoor unit and the farthest indoor unit is 90 m or more Liquid and Gas pipes are increased The level difference Outdoor unit Indoor unit is 50 m or more Only liquid pipe is increased Refrigerant pipe diameter from outdoor unit to first branch A Outdoor unit total capacity HP Liq...

Page 35: ... position than the header WARNING Pipe length after header branching a f It is recommended that difference in length of the pipes connected to the Indoor Units is minimized Performance difference between Indoor Units may occur Total pipe length A a b c d e f 300 m L Longest pipe length Equivalent pipe length A f 150 m A f 175 m l Longest pipe length after 1st branch f 40 m H Difference in height O...

Page 36: ...osition than the header WARNING Pipe length after header branching a f It is recommended that difference in length of the pipes connected to the Indoor Units is minimized Performance difference between Indoor Units may occur Total pipe length A a b c d e f 300 m L Longest pipe length Equivalent pipe length A f 80 m A f 100 m l Longest pipe length after 1st branch f 40 m H Difference in height Outd...

Page 37: ...t H 50 m 40 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 15 m Assume equivalent pipe length of Y branch to be 0 5 m that of header to be 1 m calculation purpose Indoor Unit should be installed at lower position than the header WARNING It is recommended that difference of piping length for pipes connected to the Indoor Unit is minimized Performance diff...

Page 38: ...30 m 20 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 15 m Assume equivalent pipe length of Y branch to be 0 5 m that of header to be 1 m calculation purpose Indoor Unit should be installed at lower position than the header WARNING It is recommended that difference of piping length for pipes connected to the Indoor Unit is minimized Performance differen...

Page 39: ... 6 35 1 4 Ø 12 7 1 2 16 0 54 600 Ø 9 52 3 8 Ø 15 88 5 8 22 4 76 400 Ø 9 52 3 8 Ø 19 05 3 4 36 4 124 200 Ø 9 52 3 8 Ø 22 2 7 8 Refrigerant pipe diameter from outdoor unit to first branch A Outdoor unit total capacity HP Liquid pipe mm inch Gas pipe mm inch 4 Ø 9 52 3 8 Ø 15 88 5 8 5 Ø 9 52 3 8 Ø 15 88 5 8 6 Ø 9 52 3 8 Ø 19 05 3 4 8 Ø 9 52 3 8 Ø 19 05 3 4 10 Ø 9 52 3 8 Ø 22 2 7 8 12 Ø 12 7 1 2 Ø 28 ...

Page 40: ...05 3 4 28 0 95 900 Ø 9 52 3 8 Ø 22 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 40 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT ENGLISH CAUTION Bending radius should be at least twice the diameter of the pipe Bend pipe after 500 mm or more from branch or header Do not bend U type It may cause P...

Page 41: ... Total liquid pipe Ø 12 7 mm x 0 118 kg m Total liquid pipe Ø 9 52 mm x 0 061 kg m Total liquid pipe Ø 6 35 mm x 0 022 kg m CF value of indoor unit Amount refrigerant of Indoor units Example 4 Way Ceiling Cassette 14 5 kW 1 ea Ceiling concealed Duct 7 3 kW 2 ea Wall Mounted 2 3 kW 4 ea CF 0 64 1 0 26 2 0 24 4 2 12 kg Attach the additional refrigerant table of IDU CAUTION Do not connect 0 or 1 seri...

Page 42: ...nit type Installation position should be over 2 m from the floor Wall mounted type Cassette type Adoption of ventilation system Choose ordinary ventilation system or building ventilation system Limitation in piping work Prepare for earthquake and thermal stress Liquid pipe Gas pipe Ⓐ Manifold Gauge Ⓑ Low pressure side Handle Ⓒ High pressure side Handle Total amount of refrigerant in the system 0 4...

Page 43: ...GLISH Ensure that the branch pipes are attached vertically Header 1st 1st 1st Main pipe Distribution 2nd 2nd 3rd 3nd Main pipe Distribution 1st 3rd 3rd main pipe distribution 2nd Horizontal Distribution Vertical Distribution The others Distribution Method ...

Page 44: ...ration If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint the connecting section should be cut with a pipe cutter Branch pipe should be insulated with the insulator in each kit Ⓐ To Outdoor Unit Ⓑ To Indoor Unit The indoor unit having larger capacity must be installed closer to Ⓐ than smaller one If the diameter of the refrigerant...

Page 45: ...ould be insulated with the insulator in each kit Joints between branch and pipe should be sealed with the tape included in each kit Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above Pinched pipe B Horizontal plane View from point B in the direction of the arrow Insulate the header using the insulation material attached to the branch pipe ...

Page 46: ...2 I D 9 52 I D 15 88 I D 19 05 I D 12 7 I D 12 7 I D 19 05 I D 15 88 I D 12 7 I D 19 05 O D 12 7 O D 12 7 I D 6 35 I D 15 88 371 394 83 110 70 Ύ Ύ Ώ Ώ ARBLN14521 471 517 125 120 130 I D 19 05 I D 15 88 I D 12 7 I D 19 05 I D 22 2 I D 41 3 I D 38 1 I D 41 3 O D 34 9 I D 34 9 I D 34 9 I D 22 2 I D 28 58 I D 28 58 I D 38 1 I D 41 3 I D 34 9 I D 38 1 O D 22 2 O D 38 1 O D 15 88 O D 28 58 90 Ύ Ύ Ύ Ώ Ώ ...

Page 47: ...04 120 150 400 160 I D 15 88 I D 12 7 I D 19 05 I D 15 88 I D 22 2 I D 28 58 I D 25 4 120 120 150 360 I D 9 52 I D 9 52 I D 6 35 I D 6 35 I D 9 52 I D 12 7 7 branch ARBL107 120 150 160 580 I D 19 05 I D 15 88 I D 15 88 I D 12 7 I D 22 2 I D 28 58 I D 25 4 120 150 700 120 I D 6 35 I D 9 52 I D 9 52 I D 6 35 I D 9 52 I D 12 7 10 branch ARBL1010 120 150 160 760 I D 19 05 I D 15 88 I D 15 88 I D 12 7 ...

Page 48: ... when pressure is applied and when the pressure drop is checked apply the following correction factor There is a pressure change of approximately 0 1 kg cm2 0 01 MPa for each 1 C of temperature difference Correction Temp at the time of pressurization Temp at the time of check X 0 1 For example Temperature at the time of pressurization 3 8 MPa is 27 C 24 hours later 3 73 MPa 20 C In this case the p...

Page 49: ...r to 100 7 kPa vacuum drying If the system cannot be evacuated to 100 7 kPa 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 gravimeter One that can measure down to 0 1 kg If you are unable to prepare such a high precision gravimeter you may use a charge cylinder Indoor un...

Page 50: ...e Compressor can t operate Master unit PCB DIP switch on No 5 Select the mode using Button SVC Push the button Select the Function using Button Se3 Push the button Start the vacuum mode VACC ODU V V open ODU EEV open IDU EEV open DIP switch off and push the reset button on PCB Vacuum Mode DIP SWITCH 7 Segment DIP SWITCH 7 Segment SW01C Ɨ confirm SW01C Ɨ confirm SW02C ȭ backward SW02C ȭ backward SW...

Page 51: ... asphalt roofing shall not be required Bad example Do not insulate gas or low pressure pipe and liquid or high pressure pipe together Liquid pipe Gas pipe Power cables Finishing tape Insulating material Communication cables Be sure to fully insulate connecting portion These parts are not insulated Good example Liquid pipe Communication cables Communication cables Separation Gas pipe Power cables I...

Page 52: ...wired with the same multicore cable the resultant poor transmitting and receiving will cause erroneous operations mark in the figure below Only the communication cable specified should be connected to the terminal block for Outdoor Unit communication CAUTION Be sure to correct the outdoor unit to earth Do not connect ground wire to any gas pipe liquid pipe lightening rod or telephone earth line If...

Page 53: ...y is applied to N phase by mistake check damaged parts in control box and replace them Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block Round pressure terminal Power cable When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause ab...

Page 54: ...be connected between them When connecting communication cable between outdoor unit and indoor units with shielded cable connect the shield ground to the earth screw Side panel WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight Provide an appropriate cover to intercept direct sunlight Indoor communication PCB Main PCB Terminal block Take care of the phase sequen...

Page 55: ...ated in direct proportion to the additional length of cable involved If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased If the cable are laid inside conduits then the following point must also be taken into account when grouping various cable together for introduction into the conduits Power cable including power supply to air...

Page 56: ...thing other than breaker and fuse with correct capacity Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire WARNING Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring regulations and guidance of each electric power company Make sure to use specified cables for connections so that no externa...

Page 57: ...o 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...

Page 58: ...wire BUS type STAR type Abnormal operation can be caused by communication defect when connection of communication cable is installed like below figure STAR type Connection of communication cable must be installed like below figure between indoor unit to outdoor unit ...

Page 59: ...munication cable Insulation sleeves attachment Power Ground cable Power Ground cable View A A Communication cable Over 50 mm gap Fix firmly not to be displaced ODU IDU Communication cable Hold power cable Communication cable Main power Terminal block Hold Communication cable Ground wire Fix firmly not to be displaced Over 50 mm gap Power Ground cable Communication cable Over 50 mm gap Power Ground...

Page 60: ...AL WIRING ENGLISH U4 Main power Terminal block Insulation sleeves attachments Power Ground cable Ground wire ODU IDU Communication cable Power Ground cable Communication cable Over 50 mm gap Front view Right view ...

Page 61: ...nated location with two clamp cords 105 mm Connect the connection wires according to the instructions Please refer to Setting and Using Method About more information of IO Module please refer to IO Module manual CAUTION Be sure to turn off outdoor unit power before installation Pictures may differ depending on the model ...

Page 62: ...the power is OFF Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds after applying the power This number represents the setting condition For example represents R410A 10HP Initial display order Example ARUN100LSS0 Order No Note 4 14 Model Capacity 1 Cooling Only 2 Heat Pump 38 380 V 46 460 V 22 220 V 1 R410A Standard 2 Compact Model 5 Cold Temperature Ar...

Page 63: ...B After completing addressing address of each indoor unit is indicated on the wired remote control display window CH01 CH02 CH03 CH06 Indicated as numbers of connected indoor units Heat Pump MAIN PCB CAUTION In replacement of the indoor unit PCB always perform Automatic addressing setting again At that time please check about using Independent power module to any indoor unit If power supply is not...

Page 64: ...d remote control or indoor unit display window It is not an error message will disappeared when on off button is pressed on remote control ex Display of 01 02 15 means connection of 15 indoor units and Automatic addressing is completed normally Automatic addressing start Waiting for 3 minutes Power On Press RED Button for 5 seconds SW01C 7 segment LED 88 Don t press RED Button SW01C Waiting about ...

Page 65: ...EPROM Snow removal rapid defrost oFF op1 op3 selected the option change the set value blank save in EEPROM Target pressure adjusting oFF op1 op6 selected the option change the set value blank save in EEPROM Functions save in EEPROM will be kept continuously though the system power was reset DIP switch 3 can be OFF except when installing the only 4 series indoor units named ARNU 4 Setting the funct...

Page 66: ...everal sets of Indoor Units into a group set the group ID from 0 to F for this purpose Outdoor Units Main PCB Example Group number setting 1st number indicate the group number 2nd number point out indoor unit number 1 F Group Indoor unit Group recognizing the central controller No 0 group 00 0F No 1 group 10 1F No 2 group 20 2F No 3 group 30 3F No 4 group 40 4F No 5 group 50 5F No 6 group 60 6F No...

Page 67: ...n Cool Heat Selection mode is set Function setting Switch control Function Switch up Switch down oFF op1 mode op2 mode Right side on Left side off Not operate Cooling Cooling Right side on Right side on Not operate Heating Heating Left side off Not operate Fan mode Off CAUTION Ask an authorized technician to setting a function If do not use a function set an off mode If use a function first instal...

Page 68: ...re compensation mode setting method FAN Maximum RPM of each step Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn2 Push the button Select the Option using Button op1 op3 Push the button Start the Static pressure compensation mode Save the selected option value in EEPROM Capacity 8HP 10HP Max RPM Standard 800 650 op1 850 700 op...

Page 69: ... Function using Button Fn3 Push the button Select the Option using Button op1 op15 Push the button Start the Night low noise function Save the selected option value in EEPROM Step Judgement Time Hr Operation Time Hr op1 8 9 op2 6 5 10 5 op3 5 12 op4 8 9 op5 6 5 10 5 op6 5 12 op7 8 9 op8 6 5 10 5 op9 5 12 op10 continuous operation op11 continuous operation op12 continuous operation op13 6 5 10 5 op...

Page 70: ...tch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn5 Push the button Select the Option using Button 0 254 Push the button ODU address is set CAUTION Ask an authorized technician to setting a function If use a function first install a Central controller ...

Page 71: ...utton 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 Snow removal mode Rapid defrost mode ...

Page 72: ...ect the Option using Button op1 op6 Push the button Target pressure is set Select the Option using Button HEAT COOL Push the button CAUTION Ask an authorized technician to setting a function If do not use a function set an off mode Change a power consumption or capacity Setting Mode low pressure kPa high pressure kPa off 778 2 990 op1 699 3 121 op2 739 2 827 op3 843 2 696 op4 908 2 565 op5 961 2 4...

Page 73: ...signal in indoor unit PCB 0 4 Drain pump Malfunction of drain pump 0 5 Communication error outdoor unit indoor unit Failing to receive outdoor unit signal in indoor unit PCB 0 6 Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of 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 fa...

Page 74: ...essure Sensor open or short 4 4 1 Outdoor Unit Air Temperature Sensor Fault Outdoor Unit Air Temperature Sensor open or short 4 5 1 Outdoor Unit Heat Exchanger Temperature Sensor Front side Fault Outdoor Unit Heat Exchanger Temperature Sensor Front side open or short 4 6 1 Outdoor Unit Suction Temperature Sensor Fault Outdoor Unit Suction Temperature Sensor open or short 5 0 1 Omitting connection ...

Page 75: ... Error 1 5 1 1 Failure of operation mode conversion at Outdoor Unit Outdoor Unit Failure of operation mode conversion at Outdoor Unit Display Title Cause of Error 6 7 1 Outdoor Unit Fan Lock Restriction of Outdoor Unit 7 1 1 Converter CT Sensor Error of Outdoor Unit Converter CT Sensor open or short of Outdoor Unit 8 6 1 Outdoor Unit Main PCB EEPROM Error Communication Fail Between Outdoor Unit Ma...

Page 76: ...vided into 2 or more refrigerant systems and each system is independent amount of replenished refrigerant of each system shall be adopted Amount of replenished refrigerant per one outdoor unit system Amount of replenished refrigerant at factory shipment Amount of additionally replenished refrigerant depending on piping length or piping diameter at customer Outdoor unit Indoor unit Outdoor unit Ind...

Page 77: ...nical ventilator Reducing the outdoor refrigerant qty R410A Refrigerant concentration kg m3 Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 In case the result of calculation exceeds the limiting concentration perform the same calculations by shifting to the second smallest and the third smallest rooms until at last the ...

Page 78: ...the windbreak for easy air flow Select a well drained place CAUTION Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be exposed to sea wind salty wind directly It can result corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or...

Page 79: ... para facilitar e viabilizar o descarte adequado de parelhos celulares pilhas e baterias 3 Através do Programa Coleta Inteligente a LG disponíbiliza pontos de coleta em localidades diversas incluindo assistências técnicas autorizadas da LG Electronics Para mais informações visite o site www lge com br coleta seletivaou contate nosso SAC através do número 4004 5400 Capitais e Regiòs metropolitanas ...

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