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LG LS090CP(AS-C0914DH0) User's Manual

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2. Copyright 2007 LG Electronics Inc All right reserved 76 Only for training and service purposes LGE Internal Use Only Exploded View Outdoor Unit 18k C O Seriess 7777 Copyright 2007 LG Electronics Inc All right reserved 77 Only for training and service purposes LGE Internal Use Only Exploded View Outdoor Unit 24k C O Seriess LE 22 22 222 22 52 2 22 22 22 554031 202 52 e d Om SP 649950 447910
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4. o PWB 6870A90732A FAN CNAMAY 000 ASM 6871A 0184 z RY CONPCA 60 rop e 6 6 D 5 Fuse i Kone fe M i 13 180 uus 4277 COHN anrozs ZNRO3 ORB 42 0 E 3 o E 8 8 MONIS Al P Lae B 3 Av 5 2 4 p eire o8 O O D 9 Coon R13M o O 20 Mig m 2 ETE eo eg 8 RE CET 0480 6223 4 al c NF02J o esee 16666 i O Dorp 020 Qu ER gt x ale Ene Sho MN ig cM E oh 9099009048 m 0100 Loin TuS B 8 TEES 53895 988 BOTTOM VIEW N e e 3 8 0 0 5 oco nice T de e RY_COMP A 979 9 9 ads e o mcer Jed E 5 5 ene eve 5 eee _ 9999 i ino Stt 3 uL E ee BER mom ole 5 me ag Beni i 1 Bes 3 e 5 mS eeu ui 5 o ecg SHES 8 ree CE s cameo e Len gg Rum e Bb res ea i oro OU
5. ES O Ba 1 5 VW o es O4 00 R O H E sus l1 2 O OE 380 Do 7 O O o 9 0 e6i 6 o NS H E 38 PA Qa et o uu i Totto i 5255 ig Be o 1 A B gi X eT oF Lr IPS Be ORO 1 E j a Dy B Bi MO Oe o 9 af 9 800 8 E 8 m NC 8 iis osteo 9 Qe 9 8 8 Esp 8 is ii i EN o m uu gh oe mi menmo o Q 9 a Ol E 8 gH Uma ox R OwO Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 69 LGE Internal Use Only Schematic Diagram Outdoor 18k 24k TOP VIEW
6. Part for External Models Copyright 2007 LG Electronics Inc All right reserved 78 Only for training and service purposes LGE Internal Use Only Exploded View Outdoor Unit 18k 24k H P Seriess TMM MMMM NV 54032 gt 649950 447910 Part for External Models Copyright 2007 LG Electronics Inc All right reserved 79 Only for training and service purposes LGE Internal Use Only P NO MFL32351801 December 2007
7. Does beeping sound is made from the Indoor Unit Check the voltage of power About AC 115V 60Hz Primarily the operating condition of Micom is OK Main power s voltage Voltage applied to the unit Connecting method of Indoor Outdoor connecting cable Check PWB Ass y Outdoor unit Check each load Indoor Outdoor Fan Motor Fuse Compressor Stepping Motor and contacting Pattern damage condition of related connector including connecting Varistor ZNR01J cable of Indoor Outdoor Unit Se Check the connection housing for contacting Connector related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC lt gt Board Operation Check Items Content Remedy Power Transformer Outdoor unit Input Voltage About 115 10 Check the power voltage Replace SMPS Output Voltage About DC15V 3 Module lt e C01D 7812 Output DC 12V e Replace ICO1D Indoor Outdoor unit lt e 2 7805 Output Indoor unit DC 5V Replace IC03D 7805 Output Outdoor unit ICO2D Indoor unit ICOS3D Outdoor unit e 1C01A KIA7036 Reset IC Voltage of Outdoor unit Micom No 18 OSC01B 4MHz Voltage of Indoor unit Micom No 43 and Indoor Outdoor unit soldering condition Replace faulty parts Copyright 2007 LG Electroni
8. Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper pipe in a die in the dimen sion shown in the table above Outside diameter A mm inch mm inch 06 35 1 4 0 0 5 0 0 020 09 52 3 8 070 5 070 020 912 7 1 2 070 5 070 020 215 88 5 8 071 0 070 039 Copyright 2007 LG Electronics Inc All right reserved 20 Only for training and service purposes LGE Internal Use Only Connecting 1 he Indoor Installation 1 Prepare the indoor unit s piping and drain hose for installation through the wall 2 Remove the plastic tubing retainer see the illus tration by and pull the tubing and drain hose away from chassis 3 Replace only the plastic tubing holder 1 not the holder 2 in the original position For left rear piping Route the indoor tubing and the drain hose in the direction of rear left Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole Do not connect the cable to the indoor unit Make a small loop with the cable for easy con nection later Tape the tubing drain hose and the connecting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to
9. Flare nut Tighten the flare nut with a wrench Wrap the area which accommodates the rear piping Indoor unit tubing housing section with vinyl tape Connection Indoor pipe unit pipe Vinyl tape Wrap with vinyl tape wide Connecting cable Outside diameter Torque mm inch 26 35 1 4 1 8 29 52 3 8 4 2 012 7 1 2 5 5 Vinyl tape narrow 215 88 5 8 6 6 Mount the clamp on the boss with a type B Bundle the piping and drain hose together by screw SE H P 9k 12k C O 12k wrapping them with vinyl tape over the range within which they fit into the rear piping housing section Wrap with vinyl tape Type B screw 9 Drain hose Pipe Drain hose When extending the drain hose at the indoor unit install the drain pipe For right rear piping Route the indoor tubing and the drain hose to the required piping hole position Indoor unit drain hose Vinyl tape narrow Adhesive Drain hose Copyright 2007 LG Electronics Inc All right reserved 22 Only for training and service purposes LGE Internal Use Only Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy con nection later Tape the drain hose and the connecting cable Connecting
10. When the temperature around Outdoor PWB Ass y is above 163 F the compressor is stop and only Outdoor Fan is operating d Check Relay RY COMP for driving compressor When the power About AC200V is applied to the connecting wire termi nal support transferred to compressor PWB Ass y is normal Check the circuit related to the relay Outdoor unit Check point COMP ON COMP OFF Between Micom No DC5V DCOV Between ICO1M ICO2M No 9 Below DC 1V and ICO1M ICO2M No 8 app i Turn off Main Power mor Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 56 LGE Internal Use Only When indoor Fan does not operate Troubleshooting Guide Does the voltage of each terminals of CN MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 56 d S Does the voltage of terminal of CN DC DC CONNECTOR in Indoor unit corresponds to the values in the table of page 56 Check connecting condition of the CN MOTOR CON d Do the voltage of terminal of CN DC DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 56 Check the pattern and the condition of Indoor unit PWB AsS y NECTOR JL C
11. Wrap the insulation material around the connecting portion Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material P ML WE qe CC UC 23 LGE Internal Use Only Installation Wrap the area which accommodates the rear piping housing section with vinyl tape Connection Indoor i unit piping pipe Vinyl tape wide Wrap with vinyl tape Pipe Vinyl tape narrow Connecting cable Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Pipe Drain hose Vinyl tape narrow Wrap with vinyl tape wide Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Reroute the pipings and the drain hose across the back of the chassis Piping for passage through piping hole Reroute the pipings and the drain hose across the back of the chassis Connecting cable t Drain hose 24 LGE Internal Use Only Installation A CAUTION Installation Information For left piping Follow the instruction below Correct case Press on the upper side of clamp and unfold the tubing to downward slowly Incorrect case Following bending type from right to le
12. COMP Locked Rotor AMP 25 2 S E E R 13 Air Circulation m G min cfm 13 0 460 Moisture Removal l h pts hr 43 2 5 5 3 Noise Level Indoor High dB A 41 Sound Pressure 1m Med 36 Low 35 Outdoor Max 85 Features Temperature Control Thermistor themistor Thermistor themistor Air Deflection 4 way 4 way 4 way 4 way Steps Fan Cool 3 3 3 3 3 3 3 3 3 3 Air Deflection Control up amp down Auto auto Auto auto Air Deflection Control left amp right Auto auto Auto auto Remocon Type Wireless LCD Wireless LCD Wireless LCD Wireless LCD Setting Temperature Range Cooling Mode 64 86 F 64 86 F 64 86 F 64 86 Temperature Increment 2 F 1C 2 F 1C 2 F 1 C 2 F 1C Auto Operation electronic control Yes Yes Yes Yes Self Diagnosis Yes Yes Yes Yes Timer 24hr On Off 24hr on off 24hr On Off 24hr on off Sleep Operation Yes Yes Yes Yes Healthy Dehumidification Mode Yes Yes Yes Yes Restart Delay minutes 3 3 3 3 Refrigerant R 410a Charge g 0z 600 21 1 930 32 8 850 30 0 1750 61 7 Power cord AWG P mm 14 3 2 5 14 3 2 5 14 3 2 5 12 3 2 5 Fuse of breaker Capacity A 15 20 20 30 Connecting Cable AWG P mm 18 4 0 75 18 4 0 75 18 4 0 75 18 4 0 75 Connecting Tube Liquid Side mm in 6 35 1 4 6 35 1 4 6 35 1 4 6 35 1 4 Socket Flare Gas Side mm in 9 52 3 8 12 7 1 2 12 7 1 2 15 88 5 8 Length std m ft 7 5 25 7 5 25 7 5 25 7 5 25 Additional Drain Hose outer Dia mm in 15 5 5 8 15 5 5 8 15 5 5 8 15 5 5 8 Dimensions I
13. Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Safety Precautions Operation Use two or more people to lift Do not install the product where not direct airflow at room and transport the air conditioner it will be exposed to sea wind occupants salt spray directly Avoid personal injury t may cause corrosion in the This could damage your health product Corrosion particularly on the condenser and evaporator fins could cause product mal function or inefficient operation Do not use the product for special Do not block the inlet or outlet Use a soft cloth to clean purposes such as preserving of air flow Do not use harsh detergents foods works of art etc It is a solvents etc consumer air conditioner not a precision refrigeration system There is risk of damage or loss of It may cause product failure There is risk of fire electric shock property or damage to the plastic parts of the product Do not touch the metal parts of not step on or put anything Always insert the filter securely the product when removing the the product outdoor unit Clean the filter every two weeks air filter They are very sharp or more often if necessary There is risk of personal injury There is risk of personal injury A dirty filter reduces the efficien and failure of product of the air conditioner and Copy
14. 1 894 35 2 894 35 2 H mm inch 270 10 6 295 11 6 295 11 6 D mm inch 153 6 0 165 6 5 165 6 5 Copyright 2007 LG Electronics Inc All right reserved 9 Only for training and service purposes LGE Internal Use Only Dimensions in Installation plate Model 18k Btu Series 24k Btu Series Dimension mm inch 1090 42 9 1090 42 9 H mm inch 300 11 8 300 11 8 D mm inch 178 7 0 178 7 0 Copyright 2007 LG Electronics Inc All right reserved 10 Only for training and service purposes LGE Internal Use Only Dimensions 1 9k 12k Gas side 3 way valve Liquid side 2 way valve MODEL DIM uni Bn tak W mm inch 770 30 3 H mm inch 540 21 3 D mm inch 245 9 6 L1 mm inch 287 11 3 L2 mm inch 64 2 5 L3 mm inch 518 20 4 L4 mm inch 10 0 4 L5 mm inch 100 3 9 Copyright 2007 LG Electronics Inc All right reserved 11 Only for training and service purposes LGE Internal Use Only Dimensions 2 18k 24k DIM ia 18
15. 500 19 000 19 500 22 100 22 500 Input Cooling W 980 1 150 2 250 2 250 Heating W 980 1 150 2 00 2 700 Running Current Cooling A 9 5 10 5 12 5 11 5 12 5 11 5 Heating A 9 5 10 5 12 5 11 5 12 5 11 5 COMP Locked Cooling A 57 57 29433 29433 Rotor AMP Heating A 57 57 29433 29433 S E ER 13 13 13 13 H S P E 7 8 78 7 8 78 Air Circulation m min cfm 9 3 330 9 3 330 15 530 15 530 Moisture Removal l h pts hr 1 4 3 0 1 4 3 0 3 1 6 6 3 1 6 6 Noise Level Indoor High dB A 41 41 46 46 Sound Med dB A 36 36 41 41 Pressure 1m Low dB A 34 34 38 38 Outdoor Max dB A 48 48 57 57 Features Temperature Control themistor themistor themistor themistor Air Deflection 4 way 4 way 4 way 4 way Steps Fan Cool Heat 3 3 3 3 3 3 3 3 3 3 3 3 Airflow Direction Control up amp down auto auto auto auto Airflow Direction Control left amp right auto auto auto auto Remocon Type Wireless LCD Wireless LCD Wireless LCD Wireless LCD Setting Temperature Range Cooling Mode 64 86 64 86 64 86 64 86 F Heating Mode 60 86 F 60 86 F 60 86 F 60 86 F Temperature Increment 2 1 2 F 1C 2 F 1 C 2 F 1C Auto Operation electronic control Yes Yes Yes Yes Self Diagnosis Yes Yes Yes Yes Timer 24hr on off 24hr on off 24hr on off 24hr on off Sleep Operation Yes Yes Yes Yes Healthy Dehumidification Mode Yes Yes Yes Yes Restart Delay minutes 3 3 3 3 Defrost Control Yes Yes Yes Yes Hot Start Yes Yes Yes Yes Refrigerant R410A Charge 0 02 930 32 8 930 32 8 1750 61
16. P S I G NOTE If the actual pressure are higher than shown the system is most likely over charged and charge should be removed If the actual pressure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use PUMP DOWN This is performed when the unit is to be relocated or the refrigerant circuit is serviced Pump Down means collecting all refrigerant in the out door unit without loss of refrigerant CAUTION Be sure to perform Pump Down procedure with the unit cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas Close the liquid side service valve all the way in Turn on the unit s operating switch and start the cooling operation When the low pressure gauge reading becomes 1 to 0 5kg cm G 14 2 to 7 1 5 1 6 fully close the gas Side valve stem and then quickly turn off the unit At that time Pump Down has been completed and all refriger ant will have been collected in the outdoor unit Copyright 2007 LG Electronics Inc All right reserved 34 Only for training and service purposes LGE Internal Use Only Operation Operation DISPLAY 1 C O Model Operation Indicator ON while in appliance operation OFF w
17. When it is input while in the other mode operation cooling dehumidification ventilation the Jet Cool mode is operated In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Copyright 2007 LG Electronics Inc All right reserved 37 Only for training and service purposes LGE Internal Use Only Operation Forced operation Operation procedures when the remote control can t be used The operation will be started if the power button is pressed f you want to stop operation re press the button Heat pump Model Cooling Model Room Temp gt 24 C 75 2F 21 C 69 8F lt Room Temp lt 24 C 75 2F Room Temp lt 21 C 69 8F Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High High Setting Temperature 22 C 71 6 F 22 71 6 23 73 4 24 C 75 2 F While in forced operation the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation B Test
18. cable Connecting cable Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Connecting cable t Drain hose Connecting the pipings to the indoor unit and the drain hose to drain pipe Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants Align the center of the pipings and sufficiently tighten the flare nut by hand 3 0895 Flare nut Indoor unit tubing Pipings Tighten the flare nut with a wrench Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Installation Spanner fixed Flare nut Torque wrench Connection pipe Indoor unit tubing Outside diameter Torque 06 35 1 4 1 8 09 52 3 8 4 2 212 7 1 2 5 5 215 88 5 8 6 6 Mount the clamp on the boss with a type B screw SE H P 9k 12k C O 12k B screw gt Drain hose When extending the drain hose at the indoor unit install the drain pipe L2 Indoor unit drain hose Adhesive Vinyl tape narrow
19. operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room temperature and resets in 18 1 minutes During test operation if remote controller signal is received the unit operates as remote controller sets If you want to use this operation open the front panel upward and Press the power button let it be pressed for about 3 seconds If you want to stop the operation re press the button B Auto restart n case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cooling cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the condition of the room temperature Buzzer Sounding operation When the appliance operation key is input by the remote control the short beep beep sounds When the appliance pause key is input by the remote control the long beep sounds Copyright 2007 LG Electronics Inc All right reserved 38 Only for training and service purposes LGE Internal
20. operation indicator of indoor one blinks 5 times after 2 minutes with applying the power Connecting error gt No power for Indoor unit The signal input of the remote controller and opera tion of product is impossible The thermal protector of the Power Trans operates when let it alone for long time Connecting error The signal of the remote controller is inputted The fuse and Q61 in the Outdoor unit are damaged when the indoor fan is operated Connecting error amp No power for Indoor unit The signal input of the remote controller and opera tion of product is impossible The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 61 LGE Internal Use Only Schematic Diagram om
21. overflow inside the unit NOTICE If the drain hose is routed inside the room insu late the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recom mended Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Copyright 2007 LG Electronics Inc All right reserved 21 Only for training and service purposes Installation plate 8cm LGE Internal Use Only Installation Connecting the pipings to the indoor unit Wrap the insulation material around the and drain hose to drain pipe connecting portion Put a couple drops of refrigerant oil on the face E Overlap the connection pipe insulation material of the flare before assembling taking care not to and the indoor unit pipe insulation material Bind add any contaminants Md them together with vinyl tape so that there is no Align the center of the pipings and sufficiently gap tighten the flare nut by hand Plastic bands Insulation material CU 4 Indoor unit tubing
22. position Remove the valve stem caps and confirm that the valve stems are in the raised posi tion Be sure to use a hexagonal wrench to operate the valve stems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Connect the charge hose with the push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 46 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indi cates 1kg cm g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating 3 to 5kg cm g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage A CAUTION Do not use the existing charge set for R 22 It is necessary to use new charge set for R 410A The pressure of R 410A is 1 6 times higher than that of R 22 Thus the high pres sure side gauge of charge set should be used higher pressure gauge of 50kg cm range LGE Internal Use Onl
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24. 7 1750 61 7 Power cord AWG P mm 14 3 2 5 14 3 2 5 12 3 2 5 12 3 2 5 Fuse or breaker Capacity 20 20 30 30 Connecting Cable AWG P mm 18 4 0 75 18 4 0 75 18 4 0 75 18 4 0 75 Connecting Tube Liquid Side mm in 6 35 1 4 6 35 1 4 6 35 1 4 6 35 1 4 Socket Flare Gas Side mm in 12 7 1 2 12 7 1 2 15 88 5 8 15 88 5 8 Length std mitt 7 62 25 7 62 25 7 62 25 7 62 25 Additional Drain Hose Outer Dia mm in 15 5 5 8 15 5 5 8 15 5 5 8 15 5 5 8 Dimensions Indoor mm 895 282 165 895 282 165 1090 300 178 1090 300 178 WxHxD in 35 1 4 11 1 8 6 1 2 35 1 4 11 1 8 6 1 2 42 15 1611 13 167 1 82 42 15 16 411 13 16 7 1 42 Outdoor mm T10 541 244 770 541 244 871 800 320 871 800 320 in 30 5 16 21 5 16 9 5 8 30 5 16 21 5 16 9 5 8 34 5 16 31 1 2 12 5 8 34 5 16 31 1 2 12 5 8 Net Weight Indoor kg lbs 9 3 20 5 9 3 20 5 13 28 6 13 28 6 Outdoor kg Ibs 33 72 8 33 72 8 77 169 6 77 169 6 Gross Weight Indoor Kg Ibs 10 5 23 1 10 5 23 1 16 0 35 3 16 0 35 3 Outdoor Kg lbs 34 3 75 7 34 3 75 7 82 5 181 6 82 5 181 6 Design and Specifications subject to change without prior notice for product improvement Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 73 LGE Internal Use Only Exploded View Exploded View Indoor Unit Part for Plasma Models Part for Plasma Models Copyright 2007 LG Electronics Inc All right reserved
25. 71 CT BOTTOM VIEW mm Oe J E eee g T TL m e E nm EL MM am oe axe Nc Laan LI e T tm A BE 2 0 Copyright 2007 LG Electronics Inc All right reserved 68 Only for training and service purposes LGE Internal Use Only Schematic Diagram Outdoor 9k 12k TOP VIEW ZNROIJ B8 CN TAB N POWER CN HEATER NFOIM CN 4WAY 6 8 o RUM gt o gt r BS 9 N E 5 8 119 6 A NOON am od 5 wee PES ETE Or gor E 39 5 6 3 Oeo t 299 29 A rA UN s oli z B ES ap gi DH Flo FE di O Qo MA X e 9 f M 2 0 PCB 6870A90706A ASM 6871A20901A oo 908 88 o 4 9 0 0
26. 74 Only for training and service purposes LGE Internal Use Only Exploded View Outdoor Unit 9k 12k C O Seriess Copyright 2007 LG Electronics Inc All right reserved 75 Only for training and service purposes LGE Internal Use Only Exploded View Outdoor Unit 9k 12k H P Seriess H P Models EO SUNN odels Part for External M
27. C when above 35 C it operates with the low airflow speed If overloaded while in heating mode operation in order to prevent the compressor from OLP opera tion the outdoor fan is turned on off according to the indoor pipe temp While in defrost control both of the indoor and outdoor fans are turned off E Defrost Control While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit After 40 min heating mode operation at 4 min interval whether to carry out defrost control or not and the time of defrost control are determined according to the following conditions 1 While in heating mode operation the maximum of the indoor pipe temperature is measured and it is compared with the present indoor pipe temperature to get the difference of the indoor pipe temper atures the maximum temperature of indoor pipe the present temperature of indoor pipe according to which whether to carry out defrost control or not is determined 2 According to the need of defrost control shown above and the elapsed time of heating mode opera tion at that moment the defrost control time is determined 3 When the determined time of defrost control is below 7 min heating mode operation continues without carrying out defrost control According to the procedure stated above the determination is made again When the defrost con
28. Reset IC OSCO01B 4MHz Indoor Outdoor unit About AC 208V AC 230V 10 Check the power voltage Voltage of Outdoor unit Micom No 18 Voltage of Indoor unit Micom No 43 and soldering condition Replace SMPS Module e Replace IC01D Replace ICO2D Indoor unit IC04D Outdoor unit Replace faulty parts Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 53 LGE Internal Use Only Troubleshooting Guide The product is not operate with the remote controller Turn on Main Power While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped gt When the compressor stopped Indoor Fan is driven by low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by force o S Cause by the remote controller Caused by other parts except the remote controller JE P When the mark 4 is displayed in LCD screen replace Check the contact of CN DISP connector battery Ud i When the detect switch double key inside the remote controller door is fault it is impossible to operate temperature regulating A w and wind speed selecting Check DISP PWB Ass y Voltage between CN DISP 09 DC 5
29. Use Only Display Function 1 Heating Model Operation Indicator D Cooling Soft Dry Fan Heating Deicer Indicator Hot start 2 Cooling Model Operation Operation Indicator Cooling Soft Dry Fan Compressor on Indicator Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Error Error Display LED Code Indoor body operation LED Error contents SVC check point Indoor room temperature Indoor Thermistor 1 once thermistor open short assembly check y UE gt Indoor pipe temperature 3sec 3sec 3sec thermistor open short 2 39 LGE Internal Use Only Operation Remote The controls will look like the following _ 1 transmitter ae F 5 DD c d GBE IMEBE Hw Flip up door opened 3 Operation Mode Cooling Operation UF Auto Operation or Auto Changeover A UF Healthy Dehumidification Operation 3 Heating Operation Cooling 11 Heat Pump Model 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 1 START STOP BUTTON Operation starts when this button is pressed and stops when the button is pr
30. V il Check the connecting circuit between the remote controller heck poi MICOM No R17 2Q IR LED Q1 R16 2 2KO NEPE peN e Check the connecting circuit between PIN 43 R11L 1K C11L 680PF MICOM PIN Check Receiver Ass y Copyright 2007 LG Electronics Inc All right reserved 54 Only for training and service purposes LGE Internal Use Only Troubleshooting Guide Compressor Outdoor Fan are unable to drive 9k Model Turn on Main Power d Operate Cooling Mode by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2 F at least d When in Fan Mode Compressor Outdoor Fan is stopped d Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger EVA d When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped e Check the related circuit of RO2H 12 1K RO4H 6 2K Micom No 27 Indoor unit Check the indoor temperature sensor is disconnected or not About 10 at 77 F d When the temperature around Outdoor PWB Ass y is above 163 F the compressor is stop and only Outdoor Fan is operating d Check Relay RY COMP for driving compressor When the power About AC110V is ap
31. aining and service purposes LGE Internal Use Only Troubleshooting Guide 2 way Valve Liquid Side 3 way Valve Gas Side Hexagonal wrench 4mm Flare nut Open position Closed position To piping connection To outdoor unit Valve cap Flare nut piping connection Open position Closed position Service Service port cap port To outdoor unit Works Shaft position Shaft position Service port Shippin Closed Closed Closed pping with valve cap with valve cap with cap Air purging Open Closed Open 1 Installation counter clockwise clockwise push pin or with vacumm pump Operation Closed with valve cap with valve cap with cap Pumping down Closed Open Open 2 Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open _ Open 3 Servicing with charging cylinder Gas charging Open Open Open 4 Servicing with charging cylinder Pressure check with Gen ing 9 Servicing Open Open cylinder 5 Gas releasing en ing Servicing opel Open cylinder Copyright 2007 LG Electronics Inc All right reserved 45 Only for training and service purposes LGE Internal Use Only Troubleshooting Guide Pumping Down Purge the air Outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open
32. bove checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver Copyright 2007 LG Electronics Inc All right reserved 58 Only for training and service purposes LGE Internal Use Only Troubleshooting Guide When a comunication error occurs The operation indicator of Indoor unit blinks five times The red indicator of Outdoor unit blinks five times d Check the connecting wires between Indoor and Outdoor unit for the connecting error and the contacting condition d Check the installation condition of outdoor unit d Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes d Apply the power again after about 20 seconds by the power of Outdoor unit is off d Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes d Check the PWB assembly of Indoor and Outdoor unit CAUTION If the connecting wires of Indoor and Outdoor unit are not connected within 2 minutes after the power of Outdoor unit is applied a communication error will occur Therefore the power should be applied after connect ing them Copyright 2007 LG Electronics Inc All right reserved 59 LGE Inte
33. cs Inc All right reserved 52 Only for training and service purposes LGE Internal Use Only Electronic I Product does not operate at all Troubleshooting Guide Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power d_b After 20 seconds Turn on Main Power Does beeping sound is made from the Indoor Unit Check the voltage of power About AC 208V AC 230V 60Hz Main power s voltage Voltage applied to the unit Connecting method of Indoor Outdoor connecting cable Check PWB Ass y Outdoor unit Fuse Pattern damage Varistor ZNRO1J Primarily the operating condition of Micom is OK Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector including connecting cable of Indoor Outdoor Unit E Check the connection housing for contacting Connector related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC Lt PCB Board Operation Check Items Content Remedy Power Transformer Outdoor unit Input Voltage Output Voltage About DC15V 3 1C01D 7812 Output Indoor Outdoor unit DC 12V 1C02D 7805 Output Indoor unit IC04D 7805 Output Outdoor unit DC 5V ST e 1 7036
34. e die ER pais 26 Connecting the cable between indoor unit and outdoor unit sss 27 Connect the EM UR EE 27 Checking the drainage and forming the 29 Checking iie AU AG sels UE 29 FORM TPG UDI Gist ek Ne tai a eie a A 30 PURGING 31 P C RE 31 Air purging with vacuum pulTiBE secco sut fedes tsm ast oce et ee cca ed deal 31 2 DM 34 tenu fuo ec e adl Cote deo ia tle 35 Function 35 Display FUnCuon 39 39 Remote Control t REDI 40 Disassembly 41 oy oq Ute Lacoste d 41 Troubleshooting G id eit ee E niea adt cut 44 Refrigeration Cycle Diagram 44 2 way 3 way Valve perm 45 ese E tee et ec ea a 51 La e ATO UCP AS Suse 52 Schematic a demandons orat sc di is tu S D 62 x eq os COMPO URP CE E MS 62 WIRING eC 65 Components Location 67 Product 5 5 72 Exploded VICW ic sec e en 74 Copyrigh
35. e t Os ozuvns 1 s 4 sepa luvd eg Ne s O s Q 25 iow 2 6 Schematic Diagram Outdoor 9k 12k CN COMI Tuve 225 A B ig 5 8 2 10K ROSH 10k AL VI coal PIPECDIUT DDDRD MICOM TMP87CH46 er IC02M 3 ULN2804 Heot 8 gt lt RY AVAY CN LEV Copyright 2007 LG Electronics Inc All right reserved 63 Only for training and service purposes LGE Internal Use Only LGE Internal Use Only 64
36. e wall as possi ble allowing a minimum of 12cm 4 7in from ceiling CAUTION Install the indoor unit on the wall where the height from the floors more than 2 3meters 7 6ft A minimum pipe run of 7 5meters 24 6ft is required to minimize vibration and excessive noise Outdoor unit 1 If an awning is built over the unit to prevent Select a place so that the warm air and noise direct sunlight or rain exposure make sure that from the air conditioner do not disturb neigh heat radiation from the condenser is not bors restricted 2 Ensure that the space around the back and sides is more than 10cm 3 9in The front of the More than unit should have more than 70cm 27 6in of 60cm 23 6in Pn 3 Do not place animals and plants in the path of 10cm 3 9in the warm air 4 Take the air conditioner weight into account and More th 2 select place where noise and vibration are More than 70cm 27 6in 60cm 23 6in minimum Rooftop Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding rooftop mounting If the outdoor unit is installed on roof structures or walls this may result in excessive noise and vibra tion and may be also classed as non serviceable installation Copyright 2007 LG Electronics Inc All right reserved 17 Only for training and service pur
37. ectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Safety Precautions Be cautious when unpacking For installation always contact Do not install the product on a and installing the product the dealer or an Authorized defective installation stand Service Center Shape edges could cause injury There is risk of fire electric t may cause injury accident or Be especially careful of the sharp shock explosion or injury damage to the product edges Be sure the installation area Install the indoor unit on the Do not handle the pipe by your does not deteriorate with age wall where the height from the self customer floors more then 8ft 2 4m If the base collapses the air con There are sharp moving parts High Pressure refrigent may ditioner could fall with it causing that could cause personal injury cause personal injury property damage product failure and personal injury Operation Use a dedicated outlet for this Grasp the plug to remove the Do not allow water to run into appliance cord from the outlet Do not electric part touch it with wet hands There is risk of fire or electric There is risk of fire or electric There is risk of fire failure of the shock shock product and or electric shock Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Do not let the air c
38. ef eo NF02J e MEE 4 e e e 89698 OF CR Cer i 9 8 o ee 8 C09 DI o 5 Bg Ein 8 o P 3 e P Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 70 LGE Internal Use Only DISPLAY ASSEMBLY Schematic Diagram 6871 20681 i 6870 90240 E ETUR 58 4 5k LED e o 4 388 ae mas PCB ASSEMBLY P No 6871A20681 6871A20680 fx A 5 E 2888 a gros i Op LED_M PLASMA gt PCB ASSEMBLY 68714 O SUED L 88 8 888 RECEIVER 71 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Product Specifications Product Specifications Cooling Only Model Name LS090CP LS120CP LS180CP LS240CP AS C0914DH0 AS C121E1H0 AS C1835DM0 AS C2435DMO Item Power Supply 1 115V 60 1 115V 60 1 230 208 60 1 230 208 60 Cooling Capacity 9 000 11 500 18 000 17 800 22 100 22 500 Input 780 1 150 1 940 2 250 Running Current 8 6 9 5 12 5 11 5
39. ervice purposes LGE Internal Use Only 1 Remove the cover control from the unit by loosening the 3 screws 2 Dismount caps on the conduit panel 3 Temporarily mount the conduit tubes on the conduit panel 4 Properly connect both the power sup ply and low voltage lines to the corre sponding terminals on the terminal block Ground the unit in accordance with local codes 6 Be sure to size each wire allowing sev eral inches longer than the required length for wiring Use lock nuts to secure the conduit tubes NOTICE Installation Power supply To branch T V circuit er Ground 1 is neutral for 115V models NOTICE 1 c shows field wiring 2 Separately wire the high and low voltage line 3 Use heat proof electrical wiring capable of withstanding temperatures up to 167 F 4 Use outdoor and waterproof connection cable rated more than 300V for the connection Connector trade size for this unit is 1 2 for instructions on connecting depending on the wire type you are using between indoor and outdoor unit For example Type STOW A CAUTION Outdoor unit Terminal block Be sure to comply with local codes while running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc Every wire must be connected firmly No wire should be allowed to touch refrig erant tubing the compressor or any mov ing pa
40. essed again 2 OPERATION MODE SELECTION BUTTON Used to select the operation mode ROOM TEMPERATURE SETTING BUTTONS _4__ Used to select the room temperature lt INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps amp low medium high and CHAOS JET COOL Used to start or stop the speed cooling speed cooling Ss operates super high fan speed in cooling mode Cy CHAOS SWING BUTTON Used to stop or start louver movement and set Bim the desired up down airflow direction NI ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation See page 22 TIME SETTING BUTTONS Used to adjust the time See page 22 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation See page 22 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation See page 22 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating See page 23 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 NEO PLASMA OPTIONAL Used to start or stop the plasma purification function See page 20 14 HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON OPTIONAL Used to set the desired horizontal airflow direction 15 RESET BUTTON Used prior to resetting time 16 2nd F Button Used prior to using modes printed in blue at the bottom of but
41. ft may cause damage to the tubing Copyright 2007 LG Electronics Inc All right reserved 25 Only for training and service purposes LGE Internal Use Only Installation Connection f 7 he The drain hose can be connected at two different positions Use the most convenient position and if necessary exchange the position of the drain pan rubber cap and the drain hose Drain pan Rubber cap Drain hose Exchange if necessary e Remove the drain hose Securely insert both the rubber plug and drain hose into the drain outlets Be sure the rubber the cap is securely fastened so that there is no leakage Connection Of Pi Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants Outdoor unit Suction Line piping Align the center of the pipings and suffi Bigger diameter ciently tighten the flare nut by hand lt Evaporator Line piping Smaller diameter Finally tighten the flare nut with torque wrench until the wrench clicks Torque wrench When tightening the flare nut with torque wrench ensure the direction for tightening fol lows the arrow on the wrench Outside diameter mm inch morale 06 35 1 4 1 8 09 52 3 8 4 2 912 7 1 2 5 5 015 88 5 8 6 6 019 05 3 4 6 6 Copyright 2007 LG Electronics Inc All right reserved 26 Only for training and s
42. g the unit for 10 minutes The method of using graph Find outdoor temperature Find indoor temperature onto the curve of outdoor temperature Read suction pressure at the axis of ordinates The method of using equation Calculate suction pressure after putting indoor and outdoor temperature into the equation Operating Suction Pressure For R410A According to Indoor amp Outdoor Temperature At operating the Unit for 10 minutes 3 D E o votes A Oe 8 9 5 D 5 10 15 20 25 30 35 40 Indoor Temp 3 0 0123 x Tout 0 8 x Tin Where P Suction Pressure kg cm g Tout Outdoor Temperature C Tin Indoor Temperature C Copyright 2007 LG Electronics Inc All right reserved 50 LGE Internal Use Only Only for training and service purposes Troubleshooting Guide Cycle Parts _ q Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp difference Current approx F 0 C less than 80 of rated current All amount of refrigerant leaked out Check refrigeration cycle Temp Difference Refrigerant leakege Clog of refrigeration cycle Defective compressor Temp difference Current approx 14 F 8 C less than 80 of rated current Operating Current Temp difference Current less than 14 F 8 C over the reated curren
43. gal h vac uum pump is used If tubing length is less if tubing length is longer than 10m 33 ft than 10m 33 ft 10 min or more 15 min or more When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vac uum pump Finishing the job With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve Turn the valve stem of gas side valve counter clockwise to fully open the valve Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run Copyright 2007 LG Electronics Inc All right reserved 32 Only for training and service purposes Suction Line LK 808 Line Cap Ss LGE Internal Use Only Installation Charging Each outdoor unit is factory charged nameplate charge for the evaporator as well as 7 5m 25ft line set Any time a line set is used either shorter or longer then the nominal 7 5m 25ft line se
44. heck the interference of Indoor Fan E Check the patterns and the conditions of outdoor unit PWB Assy s Check the connecting condi tion and disconnection of connecting wires between Indoor and Outdoor unit Check the motor of Indoor Fan x Indoor Fan may be stopped in the Soft Dry Mode change to the Cooling Operation Mode Indoor Fan is to be stopped when Indoor pipe coil termperature is lower than 79 F At that times Defrost indicator is turned on Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 57 LGE Internal Use Only Troubleshooting Guide When Vertical Louver does not operate Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the Vertical Louver with hands Normal Check the connecting condition of CN UP DOWN Connector Check the soldering condition on PWB of CN UP DOWN Connector E Check the operating circuit of the Vertical Louver e Confirm that there is DC 12V between RED of CN UP DOWN and GND Confirm that there is a soldering short at following terminals Between 69 6 62 and 63 of MICOM Between 2 3 5 of ICO1M Between 42 43 4 of ICO1M Between 1 2 4 and 5 of CN UP DOWN lE If there are no problems after a
45. hile in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Comp Running Incidator While in appliance operation ON while in outdoor unit compressor running OFF while in compres sor off 2 H P Model Operation Indicator ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Defrost Indicator OFF except when hot start during heating mode operation or while in defrost control Cooling Mode Operation When the intake air temperature reaches 0 5 C below the setting temp the compressor and the out door fan stop When it reaches 0 5 C above the setting temp they start to operate again Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C While in compressor running operating with the airflow speed set by the remote control While in compressor not running operating with the low airflow speed regardless of the setting Healthy Dehumidification Mode When the dehumidification operation input by the remote control is received the intake air tempera ture is detected and the setting temp is a
46. http biz lgservice com LG Room Air Conditioner MODELS LSO90CP AS C0914DHO LS120CP AS C121E1H0 LS180CP AS C1835DMO LS240CP AS C2435DMO LSO90HP AS H091E1HO LS120HP AS H121E1H0 LS180HP AS H1835DMO LS240HP AS H2435DMO CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions Door odor a ait tees Sle tls ela 3 Dimenslols ode Com Sent Oe Ek eae 9 Symbols Used in this Manual 2 ete esto tcn ub o ERIS Lot mdp deer 9 IHOGOP UNIES S ren re Mis M S 9 Sike laol eet per tt 11 Installati n ome 14 of the cod 17 Piping benoticand Elevaltor s c ure tint rm ce OA Tte ees ba ean hee 18 How to Fix Installation Plate moto eed RU va na es 19 Drill a Hole in Wall eiecti 19 EH cH 19 Flaring work and connection of piping nn 20 WOR PM CE ER 20 Connection ob PIping COOK sus 5 toin 21 Connection of the Pipes Outdoor tdi fere pesca itt
47. ic Diagram Models 18k C O WIRING DIAGRAM B 8 AATNO Adid LNO NO ZHL NO NdOSNVdX3 109 oe 2 gt zo MAIN PCB ZmaA mr zo RY COMP B HOOQNI OL BK gout T BLOCK2 4 m x I BK YL T BLOCK1 1 Yu P Switch wi 3854A20393W Models 18k H P 24k C O H P Zm zo MAIN 200 RY COMP B HOOQNI OL 3 4 RY COMP A 3 4 ASTNO 3dld1nO NO ZHL NO BK YL 1 EBY30540501 Copyright 2007 LG Electronics Inc All right reserved 67 Only for training and service purposes LGE Internal Use Only Schematic Diagram B indoor MAIN P W B ASSEMBLY TOP VIEW 9 Q 9 80248 N 9 gt 8 6870 90409 ASSY 6871 807
48. ing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncondensables and moisture from the system Air purging Witt Preparation Check that each tubing both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage Leak test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses A CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylin der valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soap A CAUTION To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Do a leak test of all joints of the tubing both indoor and ou
49. itioner in the cooling cycle however one time is not sufficient wait approxi mately 1 minute and then repeat the pro cedure pumping down pin Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes This is different from previous procedures Because you are charging with liquid refrigerant from the gas side absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be discharged If the system has been charged with liquid refrigerant while operating the air condi tioner turn off the air conditioner before disconnecting the hose 5 Mount the valve stem nuts and the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage A CAUTION This unit is charged with R 410A Pay attention not to charge R 22 49 LGE Internal Use Only Troubleshooting Guide Additional gas charging Gas leakage When refrigerant is insufficient by leakage recharge the unit with the refrigerant up to normal oper ating suction pressure Use the graph or the equation below to get operating suction pressure according to indoor and out door temperature Suction pressure was measured at 3 way valve service port after operatin
50. k 24k W mm inch 870 34 3 H mm inch 655 25 8 D mm inch 320 12 6 L1 mm inch 370 14 6 L2 mm inch 25 1 0 L3 mm inch 630 24 8 L4 mm inch 25 1 0 L5 mm inch 546 21 5 L6 mm inch 162 6 4 L7 mm inch 162 6 4 L8 mm inch 54 2 1 L9 mm inch 74 5 2 9 L10 mm inch 79 3 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 12 LGE Internal Use Only Introduction E Introduction Symbols Used In A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that may cause harm to the air condi A tioner This symbol indicates special notes Front Panel Signal Receptor Connecting ires Air Intake Vents Piping Air Outlet Vents Drain Hose Air Outlet Vents Base Plate Base Plate Copyright 2007 LG Electronics Inc All right reserved 13 Only for training and service purposes LGE Internal Use Only Installation Installation Read carefully and then follow step by step Installation Pa Installation plate Type A screw and plastic anchor 4 Type B screw Remote Control Holder Figure Screw driver Electric Drill Ohmmeter Hexagonal wrench Measuring Tape Knife Ammeter Hole Core Drill Gas Leak Detector Spanner Thermometer Level Torque wrench Copyright 2007 LG E
51. lectronics Inc All right reserved Only for training and service purposes 14 Flaring Tool Set LGE Internal Use Only Installation Installation Ma NOTICE Installation parts you should purchase Installation Plate Sleeve Bushing Sleeve Putty Gum Type Sealer Bend the pipe as closely on the wall as possible but be careful that it doesn t break Vertical Air deflector Operation Indication Lamps Signal Receptor Vinyl tape Wide x Apply after carrying out a drainage test To carry out the drainage test remove the air filters and pour water into the heat exchanger Forced Operation Button Saddle x Gas side piping Liquid side piping Additional drain pipe x Air Inlet Vents Air Outlet Vents Drain Hose Connecting cable Base Plate NOTE refrigerant line wall thickness must be at least 0 8 mm 0 031 inch Copyright 2007 LG Electronics Inc All right reserved 15 LGE Internal Use Only Only for training and service purposes Installation Confirm The Refrigerar 1 Check the quality label on the indoor and outdoor unit 2 Make certain that the refrigerant is R 410A NOTICE THIS PRODUCT CONTAINS R 410A REFRIGERANT 1 Different compressor oil R 410A Polyol ester R 22 Mineral Do not mix the existing mineral oil Do not apply used pipe tools and gauges covered with the existing mineral oil 2 Absorption of
52. moisture Compressor s oil has the high absorption rate of moisture 3 Composition R 410A R32 R125 50 50wt NOTE Never mix with other refrigerants Example Split type 12 000 Btu h 120 100 80 60 40 20 0 R 410A 100 7096 50 30 0 22 0 30 50 70 100 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Boiling Pt C Vapor pressure 25 C kg Vapor density 25 C kg m R 410A 51 4 15 9 64 R 22 40 8 9 6 44 4 Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A systems Copyright 2007 LG Electronics Inc All right reserved 16 Only for training and service purposes LGE Internal Use Only Installation Indoor unit 6 Use a stud finder to locate studs to prevent unnecessary damage to the wall 1 Do not have any heat or steam near the unit y 9 2 Select a place where there are no obstacles in front of the unit 3 Make sure that condensation drainage can be More than 12cm 4 7in More than routed away 30cm 11 8in 4 Do not install near a doorway More than 5 Ensure that the space around the left and right 30cm 11 8in of the unit is more than 30cm 11 8in The unit More than 8ft 2 4m 1 should be installed as high on th
53. ndoor mm 840 270 153 895 282 165 1090 300 178 1090 300 1 78 WxHxD in 33 116 10 518 6 132 35 14 11 18 6 12 42 15 16 11 13 16 7 1 92 42 15 16 11 13 16 7 1182 Outdoor mm 770 541 244 770 541 244 871 655 320 871 800 320 in 30 5 16 21 5 16 9 5 18 30 5 16 21 5 16 9 5 8 34 5 16 25 13 16 12 5 8 34 5 16 31 1 2 12 58 Net Weight Indoor Ibs 7 0 15 4 9 3 20 5 13 0 28 6 13 28 6 Outdoor Ibs 30 66 1 33 72 8 68 1 149 9 77 169 6 05 05 Gross Weight Indoor 8 2 18 0 10 5 23 1 16 0 35 3 16 0 35 3 Outdoor 33 3 73 4 33 3 73 4 71 1 156 5 82 5 181 6 Design and specifications subject to change without prior notice for product improvement Copyright 2007 LG Electronics Inc All right reserved 72 Only for training and service purposes LGE Internal Use Only Cooling amp Heating Product Specifications Items Unit LS090HP LS120HP LS180HP LS240HP AS H091E1H0 AS H121E1H0 18350 0 AS H2435DM0 Power Supply V Hz 1 115V 60 1 1154 60 1 230 208 60 1 230 208 60 Cooling Capacity BTU h 9 800 11 500 19 000 19 500 22 100 22 500 Heating Capacity BTU h 9 800 11
54. ne safely CHASSIS Distance mm Grade A B C D TES EB S4 50 105 59 105 IG EGER A SE 65 110 85 110 LJ LJ S5 95 122 235 122 D Installation plate B inis C ee Left rear piping Right rear piping Drill a Hole In The We Drill the piping hole with a 7 2 761 hole core drill Drill the piping hole at either the right WAKE or the left with the hole slightly slanted to the out door side Indoor Outdoor Mu Y EB Em ET mw 19 Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes Installation Main cause for gas leakage is due to defect in flaring work Carry out correct flaring work in the follow ing procedure Cut the pipes and the cable 1 Use the piping kit accessory or the pipes purchased locally 2 Measure the distance between the indoor and the out ud 4 9 us door unit gt 3 Cut the pipes a little longer than measured distance Y LJ 4 Cut the cable 1 5m 59 1in longer than the pipe length Y d og Burrs removal 1 Completely remove all burrs from the cut cross section On Pipe of pipe tube 2 Put the end of the copper tube pipe in downward direction as you remove burrs in order to avoid drop ping burrs into the tubing Point down Putting nut on
55. ning and service purposes LGE Internal Use Only Unhook the tab on the right inside of the chassis at the same time slightly pull the evaporator toward you until the tab is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self aligning bearing Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Disassembly LGE Internal Use Only Troubleshooting Guide Troubleshooting Guide Refrigeration C 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER COMPRESSOR GAS SIDE 2 Cooling amp Heating Models INDOOR UNIT OUTDOOR UNIT 8 CHECK VALVE Heating Model only 0000 CAPILLARY TUBE LIQUID SIDE I HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER m Y XV REVERSING ACCU VALVE LATOR gt i Heating Model Only COMPRESSOR w COOLING HEATING Copyright 2007 LG Electronics Inc All right reserved 44 Only for tr
56. onditioner run for a long time when the humidi ty is very high and a door or a window is left open Do not place a heater or other appliances near the power cable Moisture may condense and wet or damage furnishings There is risk of fire failure of the product and or electric shock When flammable gas leaks turn off the gas and open a window for venti lation before turning the product on Do not use the telephone or turn switches on or off Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur There is risk of explosion or fire Some ventilation by opeing win dow is necessary for the fresh air Safety Precautions Do not store of use flammable gas or combustibles near the air conditioner There is risk of fire or product fail ure y 4 Tine 72 Unplug the unit if strange sounds odors or smoke comes from it There is risk of fireproduct failure and or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped Stop operation and close any window in storm or hurricane before the hurricane arrives There is risk of physical injury electric shock or product There is risk of property damage failure of product or electric shock Copyright 2007 LG Electronics Inc All right reserved Only for training and se
57. or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point open fuse disturbance of the normal function of the overload 9 The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm 0 12in in each active phase conductors Copyright 2007 LG Electronics Inc All right reserved 28 Only for training and service purposes LGE Internal Use Only Installation Checking The Drai Pour a glass of water on the drain pan Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Connecting area drain hose Leakage checking Drain piping The drain hose should point downward for easy drain flow Downward slope Avoid these situations not raise Accumulated drain water Air Tip of drain hose Less than dipped in water 50mm gap n Wat W td Wat 22222 i ater ater ater leakage leakage leakage Ben Copyright 2007 LG Electronics Inc All right reserved 29 Only for training and service purposes LGE Internal Use Only Installation Form the piping by wrapping the connect ing portion of the indoor unit with insula tion material and secure it with two kinds of vinyl tapes f y
58. ose the valve Lo side on the charge set turn off the vacuum pump and con firm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vac uum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed A CAUTION Use vacuum pump equipped with check value applied to be prevented from flowing backward 48 8 LGE Internal Use Only Gas Charging After Evacuation Troubleshooting Guide Indoor unit Charging cylinder Outdoor unit Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis connected from the vacuum pump to the valve at the bottom of the cylinder f you are using a gas cylinder also use a scale and reverse the cylinder so that the system can be charged with liquid 2 Purge the air from the charge hose Open the valve at the bottom of the cylin der and press the check valve on the charge set to purge the air Be careful of the liquid refrigerant The procedure is the same if using a gas cylinder 3 Open the valve Lo side on the charge set and charge the system with liquid refrig erant f the system can not be charged with the specified amount of refrigerant it can be charged with a little at a time approximate ly 150g each time while operating the air cond
59. ou want to connect an additional drain hose the end of the drain outlet should be routed above the ground Secure the drain hose appro priately In cases where the outdoor unit is installed below the indoor unit perform the following Tape the piping drain hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent Seal small openings around pipings with a gum type sealer Trap is required to prevent water from entering into electrical parts Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the piping and connecting cable from down to up Secure the taped piping along the exterior wall Form a trap to prevent water entering the room Fix the piping onto the wall by saddle or equiva lent Seal a small opening around the pipings with gum type sealer 30 LGE Internal Use Only Air Purging B Installation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigeration system Therefore the indoor unit and tub
60. plied to the connecting wire termi nal support transferred to compressor PWB Ass y is normal Check the circuit related to the relay Outdoor unit Check point COMP ON COMP OFF Between Micom No DC5V DCOV Between ICO1M ICO2M No 9 Below DC 1V and ICO1M ICO2M No 8 app ApoU DEN 4 Turn off Main Power J Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Copyright 2007 LG Electronics Inc All right reserved 55 LGE Internal Use Onl Only for training and service purposes y Troubleshooting Guide Compressor Outdoor Fan are unable to drive 18k Model Turn on Main Power d Operate Cooling Mode by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2 F at least d When in Fan Mode Compressor Outdoor Fan is stopped d Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger EVA d Indoor unit When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped Check the related circuit of RO2H 12 1K RO4H 6 2K Micom No 27 e Check the indoor temperature sensor is disconnected or not About 10 at 77 F d
61. poses LGE Internal Use Only Installation Piping Length A Capacity Pipe Size park bin Additional Refigerant Btu h Suction Evap mitt 2 9K C 0 38 1 4 75025 75 05 15 49 2000 22 9k H P 12k 1 2 1 4 7 5 25 7 5 25 15 49 20 0 22 18k C O 1 2 1 4 7 5 25 15 49 30 98 20 0 22 8k HIP 24k S amp 75 25 15 49 30 98 30 0 32 Outdoor unit 3 D Outdoor unit Indoor unit In case more than 5m 16 4ft A CAUTION Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7meters 16 4 23 0ft Copyright 2007 LG Electronics Inc All right reserved 18 Only for training and service purposes LGE Internal Use Only Installation How To Mount In The wall you select should be strong and solid enough to prevent vibration 1 Mount the installation plate on the wall with type A screws If mounting the unit on a concrete wall use anchor bolts Mount the installation plate horizontally by aligning the centerline using a level 2 Measure the wall and mark the centerline It is also important to use caution concerning the location of the instal lation plate routing of the wiring to power outlets is through the walls typically Drilling the hole through the wall for piping connections must be do
62. ppliance is on pause the sleep timer mode cannot be input While in cooling mode operation 30 min later since the start of the sleep timer the setting tempera ture increases by 1 C After another 30 min elapse it increases by 1 again When the sleep timer mode is input while in cooling cycle mode the airflow speed of the indoor fan is set to the low When the sleep timer mode is input while in heating cycle mode the airflow speed of the indoor fan is set to the medium Chaos Natural Wind Mode When the Chaos Natural Wind mode is selected and then operated the high medium or low speed of the airflow mode is operated for 2 15 sec randomly by the Chaos Simulation Jet Cool Mode Operation C O Model If the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Jet Cool Mode Operation H P Model While in heating mode or Fuzzy operation the Jet Cool key cannot be input
63. remote controller forced and OPEN test one do not operate CN POWER Connecting reversely PWB pattern is damaged when applying the power All functions stop or the compressor does not operate OPEN The operation with the remote controller forced and test RY COMP one do not operate terminal All functions stop Connecting reversely The operation with the remote controller forced and test one do not operate All functions stop CN TRANS OPEN The operation with the remote controller forced and test one do not operate CN FAN OPEN The Indoor Fan does not operate The connecting All functions stop wire of CN OPEN The operation with the remote controller forced and test DC DC and one do not operate Indoor and The only signal of remote controller operation stop is Outdoor Unit Blue Black Brown Red Connecting error Do inputted but the product does not operate The RED indicator of outdoor unit blinks 5 times after 2 minutes with applying the power Connecting error The beep sound such as beep beep beep beep beep occurs periodically in Indoor unit The signal input of a remote controller and operation of product is impossible The RED indicator blinks 5 times after 2 minutes with applying the power Connecting error The signal of remote controller is inputted but the product does not operate The RED indicator of outdoor unit and the
64. right 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Dimensions Do not drink the water drained from the unit tis not sanitary and could cause serious health issues B Disuse Use a firm stool or ladder when cleaning or maintaining the air conditioner Replace all the batteries in the remote Be careful and avoid personal There is risk of fire or explosion injury d VG 7 Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn or explode Za Ve Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 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 Fg p LGE Internal Use Only Dimensions E Dimensions Symbols Used in A This symbol alerts you to the risk of electric shock A This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes Indoor Unit mda LT e 1 9k Btu Series 9k Btu Series 12k Btu Series D cie C O H P k Btu Seri W mm inch 840 33
65. rnal Use Onl Only for training and service purposes y Troubleshooting Guide The phenomena in case of connecting error INDOOR UNIT Connector Type Condition Phenomena CN DC DC Open and connecting error The same as the phenomenon of Outdoor Unit O Blue 2 Black Brown Red The indoor fan does not operate SPENT Spon The operation indicator of Indoor unit blinks 8 times Open The up down vane does not operate CN UP DOWN Short between terminals The up down vane does not smoothly operate CN DISP Open It does not operate with a remote controller The operation indicator blinks once On for 0 5 second Open Off for 3 seconds The compressor and the outdoor fan stop The indoor fan speed is low CN TH The operation indicator blinks once Short between terminals on for 0 5 second off for 3 seconds and of ROOM TH The compressor operates continuously regardless of the setting temperature and the variation of room temperature Short between terminals The operation indicator blinks once XD and of PIPE TH on for 0 5 second off for 3 seconds Continuous operation Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 60 LGE Internal Use Only OUTDOOR UNIT Troubleshooting Guide Connector Type Condition Phenomena All functions stop The operation with the
66. rts Conduit panel Connecting cable Power supply cord Power Supply Model Power source ae E t 9K 19 115V 14 18 15A T2K 10 115V 14 18 20A T8K 10 230 208 14 18 20A 24K 230 208 12 18 25A Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes over control 27 LGE Internal Use Only Installation A CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 Confirm that the starting voltage is maintained at more than 90 percent of the rated volt age marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Always install an GFCI circuit breaker in a wet
67. rvice purposes When the product is soaked flooded or submerged contact an Authorized Service Center There is risk of electrical shock LGE Internal Use Only Safety Precautions Ventilate the product from time Unplug the appliance before When the product is not be used to time when operating it togeth performing cleaning or mainte for a long time disconnect the er with a stove etc nance power supply plug or turn off the breaker There is risk of fire or electrical There is risk of electric shock There is risk of product damage shock or failure or unintended opera tion ACAUTIO B Installation Take care to ensure that nobody not insert hands or other Always check for gas refriger could step on or fall onto the objects through the air inlet or ant leakage after installation or outdoor unit outlet while the air conditioner repair of product is plugged in There could result in personal There are sharp and moving Low refrigerant levels may cause injury and product damage parts that could cause personal product failure Injury E Install the drain hose to ensure Keep level even when installing not install the product where that water is drained away prop the product the noise or hot air from the out erly door unit could damage the neighborhoods bad connection may cause To avoid vibration or waterleak It may cause a problem for your water leakage age neighbors
68. t Excessive amount of refrigerant Normal Temp difference over 14 F 8 C NOTICE Temperature difference between intake and discharge air depends on room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature and pressure of refrigeration cycle Suction pressure Compared with the normal value Temperature Compared with the normal valve Cause of Trouble Description Defective compressor Current is low un Defective 4 way reverse valve Higher Excessive amount of High pressure does not quickly Normal refrigerant rise at the beginning of operation Insufficient amount of Current is low Lower Higher refrigerant Leakage Clogging Current is low NOTICE 1 The suction pressure is usually 8 5 9 5 kg cm G Cooling at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 51 LGE Internal Use Only Troubleshooting Guide Electronic P Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power Job After 20 seconds Turn on Main Power
69. t 2007 LG Electronics Inc All right reserved 2 Only for training and service purposes LGE Internal Use Only Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury ACAUTION This symbol indicates the possibility of injury or damage to properties only Meanings of symbols used in this manual are as shown below Be sure not to do Be sure to follow the instruction p A WARNING B Installation Do not use damaged power For electrical work contact the Always use the power plug and cords plugs loose socket dealer seller a qualified electri socket with the ground terminal cian or an Authorized Service Center There is risk of fire or electric There is risk of fire or electric There is risk of electric shock shock shock Install the panel and the cover of Do not modify or extend the Do not install remove or re control box securely power cord install the unit by yourself cus tomer There is risk of fire or electric There is risk of fire or electric There is risk of fire electric shock shock shock explosion or injury Copyright 2007 LG El
70. t NOS Z IND2 N2 axa Do 501 De 2 l ww Derg al HS ABI 1531 301 201 201 71903 1503 1708 Schematic Diagram Outdoor 18k 24k Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Schematic Diagram B indoor Unit Models 9k 12k 18k 24k MAIN PWB ASM CN L R CN DISP1 CN DISP2 ICN 12V D m 2 c H 2 E 2 LINN YOOGLNO OL 3854A20427V Copyright 2007 LG Electronics Inc All right reserved 65 Only for training and service purposes LGE Internal Use Only Schematic Diagram Outdoor Unit Models 9k C O WIRING DIAGRAM 000 0 lt gt gt zog lo 2 2 m 3854A20526A Models 12k H P 12k C O H P a Lc t oO CN MOTOR LNOO NO MAIN PCB ma mr zo HOOQNI OL RY COMP O _O 3 4 CRANK CASE HEATER Copyright 2007 LG Electronics Inc All right reserved 66 Only for training and service purposes LGE Internal Use Only Schemat
71. t length the refrigerant charge has to be adjusted Whether the line set is made shorter or longer you must adjust the charge based on how many ft of tubing are either added or removed based on 30g 0 320z of R 410A per meter foot Pipe Size Standard Max Additional Capacity Length Elevation length Refrigerant Btu h Suctin Evap m ft mi tt g m ozst 9k 3 8 14 7 5 25 7 5 25 15 49 20 0 22 12k 38 1 4 7 5 25 7 5 25 15 49 20 0 22 18k 1 2 1 4 7 5 25 15 49 30 98 20 0 22 24k 5 8 14 7 5 25 15 49 30 98 200 0 22 30k 5 8 1 4 7 5 25 15 49 30 98 300 0 32 Example A 30ft line set is used 5 additional ft X 0 22 ounce per foot add 1 1 ounces of R 410A Important If you are ever uncertain of the unit charge reclaim evacuate and weigh in the correct charge using the unit nameplate charge adjusting for line sets longer or shorter than 7 5m 25ft A CAUTION Confirm the refrigerant R 410A Use manifold gauge and hose for R 410A Copyright 2007 LG Electronics Inc All right reserved 33 Only for training and service purposes LGE Internal Use Only Test Running n Test Running 1 Check that all tubing and wiring have been properly connected 2 Check that the gas and liquid side service valves are fully open Prepare remote control 1 Remove the batter
72. tdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder When the system pressure is reduced to normal disconnect the hose from the cylinder Manifold valve Pressure OO Charge hose Nitrogen gas cylinder in vertical standing position 31 LGE Internal Use Only Installation Soap water method 1 Remove the caps from the gas side and liquid side valves 2 Remove the service port cap from the gas side valve 8 To open the gas side valve turn the valve stem counterclockwise approximately 90 wait for about 2 3 seconds and close it 4 Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connec tions by a soft brush to check for leakage of the con necting points of the piping b If bubbles come out the pipes have leakage Evacuation Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit Confirm the Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies with tub ing length and capacity of the pump The follow ing table shows the time required for evacuation Required time for evacuation when 30
73. tons See page 21 17 AUTO CLEAN OPTIONAL Used to set Auto Clean mode 18 C TO F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit 40 LGE Internal Use Only Disassembly Indoor Unit WARNING Disconnect the unit from power supply before mak ing any checks Be sure the power switch is set to OFF To remove the Grille from the Chassis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the other end Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Disassembly LGE Internal Use Only Disassembly 2 To remove the Control Box Remove securing screws Pull the control box out from the chassis carefully w X 5 3 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA A CAUTION When repair do not damage the Caution label Copyright 2007 LG Electronics Inc All right reserved 42 Only for trai
74. trol time is 7 min or longer defrost control is then carried out While in defrost control the minimum temp of the indoor pipe is measured and it is compared with the present temp of the indoor pipe to get the difference of the indoor pipe temperatures the pre sent temperature of the indoor pipe the minimum temperature of the indoor pipe When the differ ence is 5 C or higher defrost control is completed and heating mode operation is carried out While in defrost control if the defrost time determined before the start of defrost control is complet ed defrost control stops and heating mode operation is carried out regardless of the above condi tion When the indoor pipe temp is 42 C or above defrost control is not carried out even if the condition is one of the defrost conditions above While in defrost control the compressor is on and the indoor fan the outdoor fan and the 4 way valve are off Copyright 2007 LG Electronics Inc All right reserved 36 Only for training and service purposes LGE Internal Use Only Operation Airflow Speed Selection The airflow speed of the indoor fan is set to high medium low or chaos auto by the input of the airflow speed selection key on the remote control Sleep Timer Operation When the sleep time is reached after 1 2 3 4 5 6 7 0 cancel hr is input by the remote control while in appliance operation the operation of the appliance stops While the a
75. utomatically set according to the intake air temperature 26 C lt Intake Air Temp 2 25 24 C lt Intake Air lt 26 2 Intake Air Temp 1 C 18 C lt Intake Air Temp lt 24 C gt Intake Air Temp 0 5 C Intake Air Temp lt 18 C gt 18 C Copyright 2007 LG Electronics Inc All right reserved 35 Only for training and service purposes LGE Internal Use Only Operation While in compressor off the indoor fan repeats low airflow speed and pause While the intake air temp is between compressor on temp and compressor off temp 10 min dehu midification operation and 4 min compressor off repeat Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp 2 Setting 0 5 In 10 min dehumidification operation the indoor fan operates with the low airflow speed Heating Mode Operation When the intake air temp reaches 3 C above the setting temp the compressor is turned off When reaches the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp Compressor OFF Temp gt Setting Temp 3 C While in compressor on the indoor fan is off when the indoor pipe temp is below 20 C when above 28 C it operates with the low or setting airflow speed When the indoor pipe temp is between 20 C and 28 C it operates with Super Low while in sleep mode with the medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33
76. y Troubleshooting Guide Balance Refrigerant of the 3 way Valve Gas leakage Outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the back seat 2 Connect the charge set to the 3 way valve s port Leave the valve on the charge set closed Connect the charge hose to the service port Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indicates 0 kg cm G f there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm G dis charge the refrigerant until the gauge indi cates 0 5 to 1 kg cm G if this is the case it will not be necessary to apply a evacuatin Discharge the refrigerant gradually if it is discharged too suddenly the refrigeration oil will also be discharged 47 LGE Internal Use Only Troubleshooting Guide Evacuation All amount of refrigerant leaked E Outdoor unit Procedure 1 Connect the vacuum pump to the center hose of charge set center hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 Cl
77. y cover by pulling it according to the arrow direction 2 Insert new batteries making sure that the and of battery are installed correctly 3 Reattach the cover by pushing it back into position NOTE Use 2 AAA 1 5volt batteries Do not use rechargeable batteries Remove the batteries from the remote control if the system is not going to be used for a long time Settlement of outdoor unit Anchor the outdoor unit with a bolt and nut 10mm 0 39in tightly and horizontally on a concrete or rigid mount When installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake In the case when the vibration of the unit is con veyed to the hose secure the unit with an anti vibration rubber Tubing connection Evaluation of the performance Operate unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake tem perature and the discharge is more than 46 4 F 8 C Cooling or Heating Intake temperature Discharge temperature 4 For reference the gas side pressure of optimum condition is as below Cooling Outside ambient TEMP The pressure of the gas side service valve 95 F 35 C 8 5 9 5kg cm G 120 135

LG LS090CP(AS-C0914DH0) User's Manual

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