LG ARUN40GS2A Quick Manual Download Page 32

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ENGLISH

Display

Title

Cause of Error

1 1 3

1 1 5

1 5 1

2 4 2

Outdoor unit related error

Outdoor Unit Inverter Compressor High Discharge
Temperature

High Pressure of Outdoor Unit

Low Pressure of Outdoor Unit

Low pressure ratio

Outdoor Unit Inverter Compressor CT Sensor Fault

Outdoor Unit Inverter Compressor Discharge Temper-
ature Sensor Fault

Outdoor Unit Low Pressure Sensor Fault

Outdoor Unit High Pressure Sensor Fault

Outdoor Unit Air Temperature Sensor Fault

Outdoor Unit Heat Exchanger Temperature Sensor
Fault

Outdoor Unit Suction Temperature Sensor Fault

Excessive capacity of indoor units

Communication error : indoor unit

→

main PCB of out-

door unit

Inverter PCB EEPROM error

Outdoor Unit Fan Lock

Instant Over Current(Peak) of Outdoor Unit PFC

Outdoor Unit Liquid pipe Temperature Sensor Error

Outdoor Unit Subcooling Outlet Temperature Sensor
Error

Failure of operation mode conversion at Outdoor Unit

Network error

System is turned off by outdoor unit Inverter Compressor High Dis-
charge Temperature

System is turned off by excessive increase of high pressure of out-
door unit

System is turned off by excessive decrease of low pressure of out-
door unit

Pressure ratio is under limit

Outdoor Unit Inverter Compressor CT Sensor open or short

Outdoor Unit Inverter Compressor Discharge Temperature Sensor
open or short

Outdoor Unit Low Pressure Sensor open or short

Outdoor Unit High Pressure Sensor open or short

Outdoor Unit Air Temperature Sensor open or short

Outdoor Unit Heat Exchanger Temperature
Sensor Open or Short

Outdoor Unit Suction Temperature Sensor open or short

Excessive connection of indoor units compared to capacity of outdoor
unit

Failing to receive indoor unit signal at main PCB of outdoor Unit.

Check EEPROM checksum error when resetting power

Restriction of Outdoor Unit Fan

Instant Over Current(Peak) of Outdoor Unit PFC

Liquid pipe temperature sensor of outdoor unit is open or short

Outdoor Unit Subcooling Outlet Temperature Sensor open or short

Pressure unbalance between outdoor units`

Network error of central control unit

Summary of Contents for ARUN40GS2A

Page 1: ...anual for future reference after reading it thoroughly 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 Original instruction QUICK MANUAL AIR CONDITIONER ENGLISH ITALIANO ESPAÑOL FRANÇAIS ...

Page 2: ... 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 shock explo sion or injury Do not install remove or re install the unit by yourself customer There is risk of fire electric shock explo sion or injury Do not store or use flammable gas or com bustibles near the air conditioner There is risk o...

Page 3: ... sub merged contact an Authorized Service Cen ter There is risk of fire or electric shock Be cautious not to touch the sharp edges when installing It may cause injury Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage Do not open the inlet grille of the product during operation Do not touch the electro static filter i...

Page 4: ...unit sus pending it at the specified positions on the unit base Also support the outdoor unit at four points so that it cannot slip sideways Safely dispose of the packing materials Packing materials such as nails and other metal or wooden parts may cause stabs or other injuries Tear apart and throw away plastic packag ing bags so that children may not play with them If children play with a plastic...

Page 5: ...ness cleanness and tightness Multiple core cable must not be used suitable cable should be selected In the ﬁnal check for 24hours at 3 8 MPa 38 7 kgf cm2 there must be no drop in pressure The vacuum pump used must have a capacity of reaching at least 5 torr more than 1 hour Recharge correctly as calculated in this manual and record the amount of added refrigerant Make sure there are no gaps left b...

Page 6: ...32 8 13 0 37 4 54 3 13 0 37 4 54 3 13 0 9 52 9 52 9 52 3 8 3 8 3 8 15 88 15 88 19 05 5 8 5 8 3 4 FLARE BRAZING BRAZING Power Supply 3Ø 380 415V 50Hz 3Ø 380V 60Hz A PFC model B Active Filter model Chassis System HP Model Refrigerant Product charge kg CF Correction Factor kg Max Connectable No of Indoor Units Net Weight Gross Weight kg Dimensions WxHxD mm inch Connecting Pipes Liquid Pipes mm inch G...

Page 7: ...nstallation in a place where acidic solution and spray sulfur are often used Do not use unit under any special environment where oil steam and sulfuric gas exist It is recommended to fence round the outdoor unit in order to pre vent any person or animal from accessing the outdoor unit If installation site is area of heavy snowfall then the following di rections should be observed Make the foundati...

Page 8: ... or less 1000 or more 100 or more 100 or more Unit mm H L L H L H 100 or more 500 or more 500 or less more 1000 or L H 250 or more 1000 or more Unit mm L H L H L H 300 or more 1000 or more 500 or less 1000 or more L H 300 or more 1250 or more 5 5 5 100 or more 100 or more Unit mm L H L H 1000 or more H L 100 or more 500 or more 500 or less H L 300 or more 1000 or more 500 or less 1000 or more 300 ...

Page 9: ...the product snow may accumulate Don t install the suction hole and discharge hole of the Outdoor Unit facing the seasonal wind INSTALLATION Foundation for Installation Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation Fix the unit securely by means of the foundation bolts Prepare 4sets of M12 foundation bolts...

Page 10: ...en the flare nut When connecting a flare nut coat the flare inner and outer faces with oil for R410A PVE and hand tighten the nut 3 to 4 turns as the initial tightening Union Opening shutoff valve 1 Remove the cap and turn the valve counter clockwise with the wrench 2 Turn 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 n...

Page 11: ... as shown figure above CAUTION You should not dame pipe base during the work of pipe knock out Operate piping work removing burr after pipe knock out CAUTION Make sure that pipe doesn t contact with the compressor terminal cover and comp bolt Always insulate the liquid and gas side field piping and branch Gas pipe Liquid pipe Wet towel The installation piping is connectable in four directions refe...

Page 12: ... piping Material Seamless phosphorous deoxidized copper pipe Wall thickness Comply with the relevant local and national regu lations for the designed pressure 3 8MPa We recommend the following table as the minimum wall thickness 2 Commercially available piping often contains dust and other materi als Always blow it clean with a dry inert gas 3 Use care to prevent dust water or other contaminants f...

Page 13: ...on and the unit may be damaged After selecting diameter of the refrigerant pipe to suit total ca pacity of the indoor unit connected after branching use an ap propriate branch pipe set according to the pipe diameter of the indoor unit and the installation pipe drawing Do not use anti oxidants when brazing the pipe joints Residue can clog pipes and break equipment Selection of Refrigerant Piping Al...

Page 14: ...rd Indoor Unit total capacity kW Btu h Liquid pipe mm inch Gas pipe mm inch 5 6 19 100 Ø6 35 1 4 Ø12 7 1 2 16 0 54 600 Ø9 52 3 8 Ø15 88 5 8 22 4 76 400 Ø9 52 3 8 Ø19 05 3 4 The Amount of Refrigerant The calculation of the additional charge should take into account the length of pipe Example 5 HP L1 L2 L3 a b c d 1WAY 2 2kW 2WAY 5 6kW 4WAY 2 2kW 4WAY 7 1kW Length m of liquid pipe of Ø9 52mm Additio...

Page 15: ...l mounted type Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation sys tem Limitation in piping work Prepare for earthquake and thermal stress Volume of the room at which Indoor Unit of the least capacity is installed Total amount of refrigerant in the system 0 44 kg m3 CAUTION If a negative result is obtained from the calculation no refrigerant ...

Page 16: ...h For example Indicated Ø9 52 is the outer diameter O D of field jointed piping Insulate the header using the insulation material attached to the branch pipe kit as shown in the ﬁgure Insulator Insulator of ﬁeld pipe Tape Tape Cap pipe Insulator for cap pipe Y Branch Models Gas pipe Liquid pipe ARBLN 01621 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 I D12 7 O...

Page 17: ...rection 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 hour later 3 73 MPa 20 C In this case the pressure drop of 0 07 is because of tem perature drop And hence there is no leakage in pi...

Page 18: ...t the required additional refrig erant must be charged in its liquid state If the refrigerant is charged in its gaseous state its composition changes and the system will not work properly Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat resistant poly ethylene so that no gap is observed in the joint between indoor unit...

Page 19: ...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 CAUTION This product have reversed phase protection detector that only works when the power is turned on If there exists black out or the power goes on and off which th...

Page 20: ...conditions ambient temperature direct sun light rain water etc when proceeding with the wiring and connec tions The wire size is the minimum value for metal conduit wiring The power cord size should be 1 rank thicker taking into account the line voltage drops Make sure the power supply voltage does not drop more than 10 Specific wiring requirements should adhere to the wiring regulations of the re...

Page 21: ...ine Between Indoor Unit and Outdoor Unit Power supply switch Switch fuse ELCB Power supply switch Switch fuse Main Switch Pull Box Installer Option Between Indoor and Outdoor unit U3 Chassis 2 Fan Model IDU SODU DRY1 DRY2 GND INTERNET B A B A 12V B A 3 4 3 4 3 4 WARNING Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage Communication disorder by n...

Page 22: ...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 WARNING Main PCB power should be reset in order to recogniz...

Page 23: ...gain If power supply is not applied to the indoor unit operation error oc curs Auto addressing is only possible on the main PCB Auto addressing has to be performed after 3 minutes to improve communication Initial shipping condition of DIP Switch SW01N SW01N WARNING Main PCB power should be reset in order to recognize the changed function after handling the DIP switch for configuration of additiona...

Page 24: ...rol 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 auto addressing is completed normally Wait for 3 minutes after applying power supply outdoor unit indoor unit Press the switch of the outdoor unit for 5 seconds For completing addressing 2 7 minutes are required...

Page 25: ...Cool Heat Selector and try to use other switch except from LG Outdoor Cool Heat Selector in field Connect signal terminal block as below figure and description How to set mode without Cool Heat Selector Cooling Mode Setting GND Connection Off Open Heating Mode Setting GND Connection GND Connection Fan Mode Setting Off Open GND Connection GND GND GND TEST RUN Checks before Test Run Test run should ...

Page 26: ...frigerant Checking 1 2 7 14 ON Main PCB SW01B SW02B Press the black button for 2 s on main PCB Main PCB SW01V Indoor Outdoor units operate with air circulation mode Refrigerant Auto Charging Press the black button until 508 is displayed Judging sensor normality Error Display Refrigerant Auto Charging Main pcb LED Note 4 Press the black button on the main PCB for 2 s Main PCB SW01V Press the black ...

Page 27: ...d After is displayed open the valve and charge the refrigerant Error contents about auto refrigerant charging function Temperature Range Error In case that IDU or ODU is out of range Low Pressure Descent Error In case the system runs at low pressure limit for over 10 minutes Judging rapid refrigerant inflow In case the liquid refrigerant flows in because of not using designated Capillary Assembly ...

Page 28: ...ranteed Temperature range the sys tem will not execute Refrigerant checking and the system will be OFF Excess of Refrigerant 619 After remove the 20 of calculated total refrigerant recharge the refrigerant by using Refrigerant Auto Charging Function Scarcity of Refrigerant 629 Charge the refrigerant by using Refrigerant Auto Charging Function Impossible to Judge 639 IF the system is not in order c...

Page 29: ...r Compressor Start Failure PSC PFC Fault error Outdoor Unit Inverter DC link High Voltage Outdoor Unit Inverter Compressor Over Current Outdoor Unit Inverter Compressor High Discharge Temperature High Pressure of Outdoor Unit Low Pressure of Outdoor Unit Low pressure ratio Air temperature sensor of indoor unit is open or short Inlet pipe temperature sensor of indoor unit is open or short Failing t...

Page 30: ...Outdoor Unit Network error Outdoor Unit Inverter Compressor CT Sensor open or short Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short Outdoor Unit Low Pressure Sensor open or short Outdoor Unit High Pressure Sensor open or short Outdoor Unit Air Temperature Sensor open or short Outdoor Unit Heat Exchanger Temperature Sensor Open or Short Outdoor Unit Suction Temperature S...

Page 31: ...door EEPROM Error Poor fan motor operation Outdoor Unit Inverter Compressor IPM Fault Inverter Board Input Over Current RMS of Outdoor Unit Outdoor Unit Inverter Compressor DC link Low Volt age Outdoor Unit High Pressure Switch Outdoor Unit Input Voltage High Low Voltage Outdoor Unit Inverter Compressor Start Failure PSC PFC Fault error Outdoor Unit Inverter DC link High Voltage Outdoor Unit Inver...

Page 32: ...t Outdoor Unit Network error System is turned off by outdoor unit Inverter Compressor High Dis charge Temperature System is turned off by excessive increase of high pressure of out door unit System is turned off by excessive decrease of low pressure of out door unit Pressure ratio is under limit Outdoor Unit Inverter Compressor CT Sensor open or short Outdoor Unit Inverter Compressor Discharge Tem...

Page 33: ...efrigerant leaks Refrigerant of the whole No 1 system ﬂows out The installer and system specialist shall secure safety against leakage according to local regulations or standards The following standards may be applicable if local regulations are not available Introduction Though the R410A refrigerant is harmless and incombustible itself the room to equip the air conditioner should be large to such...

Page 34: ... ARUN60GS2A Installation Guide for EN 61000 3 12 2005 This equipment complies with IEC 61000 3 12 provided that the short circuit power Ssc is greater than or equal to 910 kVA at the interface point between the user s supply and the public system It is the responsibility of the installer or user of the equipment to en sure by consultation with the distribution network operator if nec essary that t...

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