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Room Air Conditioner

1. ml STEPPING MOTOR KNDOOR FAN i 1 UP DOWN 120 lt 45 PK 131414 SR D as le We Led ep AL Rm eT 2 2 RE 8s s al js Tronsmitter ai DE 1 L DISPLAY cn pise2 8 8 NOTE W BE T d 5 x 1 The unit of undefined resistance is ohm 1 8W 5 ste ul 4e keck bc 2 The unit of undefined capacitors is uF 55 5 12 5 8 e E NEC receiver RON UPD780023AGC C GL AMAL Fo em 25 ul ls Ersov SL en cat ga 11 01 AX S Kee 55 18 I 1 u 7 7 7 receiver 12 DG 5 5 5 5 H R d TEE E a 100 Wen gg 313 18119021 1 212 212 sem 15 i i ARTWORK CONNECTOR PCB tan Een Pe pee ee 21 t DISPLAY BARE PCB 6870A90240A R 4 EI DISPLAY ASM PCB 6871420574A 0 ad G 6W 10K E Zu Ka CN CENT t RELAY CONNECTION pc SR Se m nns Tl E mE lt 313 ab r3 E se this use resistor 10 2012 7 ICH erg s 21 09 Gg 1 gt LLI Option RU 4 n Kai Che 4 s Zem a i Th m HVB D I EEN 2 SSES mmm if MI ss m U GL E LLI G Jusen 08 12 OPTION noise chorocter increasing thing T KEE noise chorocter increasing thing m m El PART c 1020 Option only Tjs is
2. DESCRIPTION REMARKS No AS H2465DM0 LS C1865DM0 430410 ASSEMBLY WELD OUTDOOR 3041A30003F 3041A10045B R 435301 GRILLE DISCHARGE 3530A20007B 1 00840 435511 COVER ASSY CONTROL OUTDOOR 3551A30007X 551 20030 R 435512 COVER ASSEMBLY TOP OUTDOOR 3H03266K 3H03465D R 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A20005H 2H02674V R 437212 PANEL ASSY REAR 3720AP0003D 1 00967 447910 BARRIER ASSEMBLY OUTDOOR 2 02110 4791AR7047A R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20013D 4681A20126A R 550140 ISOLATOR COMP 4 00982 R 550140 GROMMET 4022U LO05A R 552102 1 TUBE CAPILLARY BEND 5210A30216P 5210A31405B R 552102 2 TUBE CAPILLARY BEND R 552111 TUBE ASSEMBLY CAPILLARY 5211A10039F 5211A20291H R 552116 TUBE ASSEMBLY REVERSING 5211 20529 R 552201 VALVE CHECK 5220A30004A R 552202 VALVE REVERSING 5220AR3228C R 552203 1 VALVE SERVICE 5220A20001R 2H02200E R 552203 2 VALVE SERVICE 5220A20013A 2H01890R R 554031 CONDENSER ASSEMBLY BENT 5403A20022R 5403A20072M R 554160 COMPRESSOR SET 2520UXFP2AA 2520UHCP2CA R 559010 FAN ASSEMBLY PROPELLER 1A00195B 5900AR1119B R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Y R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A10002L 4781AR1459M R WOCZZ CAPACITOR DRAWING 2A00986Y 0CZZA20007P R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LG
3. 65 Service Manual Replacement Parts List Replacement Parts List Parts List Indoor LOCATON DESCRIPTION FARTI REMARKS No AS H0764DM0 AS H0964DM0 AS H1264DM0 15 12640 0 131410 CHASSIS ASSEMBLY 3141 20019 3141A20019A 3141A20019A 3141 20019 R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10307A 3531 10307 3531 10307 3531A10307A 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A14002A 3531A14002A 3531A14002A 3531A14002F R 135516 COVER ASSEMBLY MOTOR 3551 20156 3551A20156A 3551A20156A 3551A20156A R 146811 MOTOR ASSEMBLY STEP 4681 20055 4681A20055A 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230 20051 5230 20051 5230A20051A 5230A20051A R 159901 VANE HORIZONTAL 5990 20048 5990 20048 5990A20048A 5900A20048A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157C 4995A10157A 4995A10157C 4995A10157C 263230 THERMISTOR ASSEMBLY 6323A20004A 6323 20004 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411A20013E 6411A20013E 6411A20013E 6411A20013E R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90032N 6711A90032N 6711A90032N 6711A90032N R 268712 PWB PCB ASSEMBLY DISPLAY 6871 20574 6871A20574A 6871A20574A 6871 20574 268714 PWB PCB ASSEMBLY MAIN 6871A20572C
4. Airflow Speed Selection e The airflow speed of the indoor fan is set to high medium low or chaos auto the input of the airflow speed selection key on the remote control Sleep Timer Operation When the sleep time is reached after lt 1 2 3 4 5 6 7 0 cancel hr gt is input by the remote control while in appli ance operation the operation of the appliance stops e While the appliance is on pause the sleep timer mode cannot be input e While in cooling mode operation 30 min later since the start of the sleep timer the setting temperature increases by 1 C After another 30 min elapse it increases by 1 C 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 air flow mode is operated for 2 15 sec randomly by the Chaos Simulation Jet Cool Mode Operation C O Model e f 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 tem
5. 4 3 Q fo FUSE RYCOMP CN N2 250V T2A an RY 4WAY CN 4WAY RY FAN CN UR 1CN U D CN OPTION CN TH1 nem OPTION ASM P No 3854A20427C DISPLAY PWB ASM CN DISP1 CN DISP2 CN 12V CN HVB i P No 3854A20427B Service Manual 43 Schematic Diagram Outdoor Unit Models 7k 9k 12k Cooling only Model WIRING DIAGRAM CAPACITOR Cel Lp BLL GNYLI TERMINAL 2 N _ BLOCK BL GNYL b TO INDOOR UNIT P No 3854A20481B Models 7k 9k 12k Heat pump Model WIRING DIAGRAM CAPACITOR x REVERSING BL TERMINAL 2N 3 4 Brock aam TO INDOOR UNIT P No 3854A20481A 44 Room Air Conditioner Schematic Diagram Models 18k 24k Cooling only Model Models 18k 24k Heat pump Model WIRING DIAGRAM WIRING DIAGRAM OPTIOI OPTION BR OR 1 YL by CAPACITOR T B TERMINAL BLOCK TERMINAL TO INDOOR UNIT 3854 20167 INDOOR UNIT 3854A20167A Models LS C1865DMO
6. Liquid side piping Smaller diameter Torque wrench Connecting the cable between indoor unit outdoor unit H Connecting the cable between indoor unit and outdoor unit e Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection Ensure that the color of the wires of the outdoor unit and the terminal No are the same as those of the indoor unit The earth wire should be longer than the common wires The above circuit diagram is subject to change without notice When installing refer to the circuit diagram on the control box inside Indoor Uint When installing refer to the circuit diagram on the Control Box of Indoor Unit When installing refer to the wiring diagram on the Control Cover Inside Outdoor Unit A CAUTION The above circuit diagram is subject to change without notice Be sure to connect wires according to the wiring diagram e Connect the wires firmly so that not to be pulled out easily e Connect the wires according to color codes by referring the wiring diagram A CAUTION e power plug is not to be used provide a circuit breaker between power source and the unit as shown below Main power source Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse A CAUTION The power cord connected to the A unit should be complied with
7. Outside diameter A mm inch mm 06 35 1 4 0 0 5 09 52 3 8 0 0 5 012 7 1 2 0 0 5 015 88 5 8 0 1 0 019 05 3 4 1 0 1 3 Check Compare the flared work with figure below e If flare is noted to be defective cut off the flared sec tion and re flare it Smooth all round 4 Inside is shiny without scratches Improper flaring a Am Inclined Surface Gracked Uneven damaged thickness Even length all round Preparing the indoor unit s piping and drain hose for instal lation through the wall Remove the plastic tubing retainer see illustration below and pull the tubing and drain hose away from chassis Replace the plastic tubing holder in the original position Optional Drain hose A CAUTION When install make sure that the remaining parts must be removed clearly so as not to damage the pip ing and drain hose especially power cord and connecting cable For right piping Route the indoor tubing and the drain hose in the direction of rear right Drain hose Insert the connecting cable into the indoor unit from the out door unit through the piping hole Do not connect the cable to the indoor unit Make a small loop with the cable for easy connection 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 overflow ins
8. 24Hr ON OFF 24Hr ON OFF Self Diagnosis O O Remocon Type L C D wireless L C D wireless Service Valve Liquid Gas inch mm 1 4 6 35 3 8 9 52 1 2 12 7 5 8 15 88 Operation O O Drain Hose O O Connecting Cable Power Cord Service Manual 19 Installation Installation Indoor unit e Do not have any heat or steam near the unit Select a place where there are no obstacles in front of the unit Make sure that condensation drainage can be conveniently routed away Do not install near a doorway Ensure that the space around the left and right of the unit is more than A The unit should be installed as high on the wall as possible allowing a minimum of B from ceiling Use a stud finder to locate studs to prevent unnecessary damage to the wall than 1 More than 10 More than 2 3m 1 SS A CAUTION Install the indoor unit on the wall where the height from the floors more than 2 3 meters Clearance cm Grade A 5 28 10 5 30K 38K 30 12 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted Ensure that the space around the back and sides is more than 10cm The front of the unit should have more than 70cm of space e Do not place
9. 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 ee low speed by force When the compressor stopped Indoor Fan is driven by a 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 gt Cause the remote control Caused by other parts except the remote control When the mark 4 is displayed in LCD screen replace battery LL Check the connecting circuit between the remote controller MICOM No 69 R16 1 5k IR LED TR R17 1Q or MICOM No 1 R1 1 5k IR LED TR R2 1Q lI Check the contact of CN DISP1 connector 42 Check Display PCB Assembly Voltage between CN DISP1 DC 5V x Check point e Check the connecting circuit between CN DIS1 R11L 100Q CO1A 100nF MICOM PIN Check Receiver Assembly Service Manual 57 Troubleshooting Guide Compressor Outdoor Fan are unable to drive 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 1 at least d When in Air Circul
10. and forming the pipings l Checking the drainage and forming the pipings Gz Fon To remove the front panel from the indoor unit Form the piping by wrapping the connecting Set the air direction louvers up and down to the portion of the indoor unit with insulation mate position horizontally by hand rial and secure it with two kinds of vinyl tapes Remove the securing screws that retain the front panel If you want to connect an additional drain hose the end of Pull the lower left and right sides of the grille toward you the drain outlet should be routed above the ground Secure and lift it off the drain hose appropriately 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 right and Secure the tapped piping along the exterior wall using sad e side dle or equivalent To check the drainage BEE Se around pipings with um type sealer Pour a glass of water on the evaporator SE Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Trap is required to prevent water from entering into electrical parts 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 Drain piping Secure the taped piping along the exterior wall Form
11. approx 0 less than 80 of rated current Current Temp difference approx 8 less than 80 of rated current Temp difference less than 8 C Current over the reated current Temp difference over 8 e All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakege Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant e Normal 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 High 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 Service Manual 55 Troubleshooting G
12. CAPACITOR DRAWING 3H01487K 3H01487K 3H01487K 3H01487K R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 67 Replacement Parts List Parts List Indoor LOCATION PART No No TE 15 26650 0 LS H1865DMO 5 24650 0 AS H1865DMO dis 131410 CHASSIS ASSEMBLY 3141A20020B 3141 20020 3141 20020 3141A20020B R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531 20252 3531 20252 3531A20252A 3531A20252A R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A20253B 3531 20253 3531A20253A 3531A20253A R 135516 COVER ASSEMBLY MOTOR 3551A20154B 3551 20154 3551A20154B 3551 20154 R 146811 MOTOR ASSEMBLY STEP 4681 20055 4681 20055 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230 20052 5230 20052 5230A20052A 5230A20052A R 159901 VANE HORIZONTAL 5990A20049A 5990A20049A 5990A20049A 5990A20049A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10168C 4995A10168A 4995A10168C 4995 10168 R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323 20004 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411 20047 6411 20047 6411 20047 6411 20047 267110 REMOTE CONTROLLER ASSEMBLY 6711A90032N 6711A90032N 6711A90032N 6711A90032N R 268
13. A clean 4way NBF NBF F A changeove Autoclean 4way PTC NBF F A changeove A clean 4way Low Nano Plasma lON A Clean 4way Nano Plasma F Negative ION Healthy dehumidification A Clean Nano Plasma F 4Way A changeove A clean Oxy generator 4way Nano Plasma F Negative ION Healthy dehumidification A Clean Oxy generator Dry contact Wire remocon oe Z lt 4 000216 10 Serial LG Model Development Serial ARTCOOL COLOR Mirror White Blue Wood Metal Cherry gt 4 Room Air Conditioner Safety Precautions E 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 A WARNING 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 2 AWARNING installation Do not use damaged power cords plugs or a Always use the power plug and socket with the loose socket grou
14. WIRING DIAGRAM TERMINAL BLOCK TO INDOOR UNIT 3854A20123H Service Manual 45 Schematic Diagram MAIN P W B ASSEMBLY TOP VIEW FUSE r PSDVAC TEA CN LI CN L RBL gt oo 88888 338 413318 RV COMP CN Eni os TN DISPE BLI LL 2 2 M s 389 z spei 4 ta Es CN P 0 99 z amp H El 4 Els Site 8 3 021010 9010 12 e r o 9 J e 9 5 1 COBD m z 3 F o 8 8 o Bi PCB 6870A90238A ja ji Gb ji ASSY 687 72 RO4F re G 9 o 888 18 103 101 ROIL 5 GD ene CN 4WAY E o 5 407 508 409 JIL z 0053 D04J 5 S 5 8 gt mor NIC o 218888 Wor 5 52 ico Gi C03J e BOTTOM VIEW 46 Room Air Conditioner Schematic Diagram DISPLAY ASSEMBLY 6871A20574A 1 SW_TACT ROSG 4 R13L LED4 ec vo 19119 RO2G RO4G CNEDISP1 PWB P No 68
15. When reaches the setting temp the compressor is turned on Compressor ON Temp 2 Setting Temp Compressor OFF Temp 2 Setting Temp 3 C e 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 oper ates with Super Low while in sleep mode with the medium airflow speed e While in compressor off the indoor fan is off when the indoor pipe temp is below 33 C when above 35 C it operates with the low airflow speed f overloaded while in heating mode operation in order to prevent the compressor from OLP operation 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 Defrost Control e 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 com pared with the present indoor pipe temperature to get the difference of the indoor pipe temperatures the maximum temperature of
16. catching and interfering parts in the rotation radial of the Vertical Louver 60 Air Conditioner Troubleshooting Guide When Heating does not operate Turn ON Main Power Operate Heating Mode by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2 C at least In heating Mode the indoor fan operates in case the pipe temperature is higher than 28 C Check the connector of intake and pipe sensor thermistors Check the related circuit of RY AWAY Check the indoor room temperature is disconnected or not about 10KQ at 25 Check the indoor pipe temperature is disconnected or not about 5KO at 25 C Check the DC voltage on the PWB ASSEMBLY e The details of check are as followings Comp Relay e Outdoor fan Relay Check point Comp ON Comp OFF Check point Fan ON Fan OFF Between Micom Between Micom NO 59 DC PN SE NO 53 op POV SS Between ICO1M Between ICO2M NO 15 and GND Below DC 1V NO 12 and GND Below DC 1V About DC 12V 4 way Relay Check point 4 way ON 4 way OFF Between Micom NO 51 and GND SE SES Between IC02M NO 11 and GND Below DC 1V About DC 12V Service Manual 61 Troubleshooting Guide s Turn off Main Power 42 Check the electrical wiring diagram of outdoor
17. insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material at CL C e Wrap the area which accommodates the rear piping hous ing section with vinyl tape Connection 4 Indoor Vinyl tape Wrap with vinyl tape wide Connecting cable Vinyl tape narrow Service Manual 23 Flaring work and connection of piping Bundle the piping and drain hose together by wrapping them with vinyl tape for enough to cover where they fit into the rear piping housing section Wrap with vinyl tape Pipe Vinyl tape wide Drain hose For left rear piping Route the indoor tubing and the drain hose to the required piping hole position Insert the piping drain hose and the connect ing cable into the piping hole Connecting cable Drain pipe Insert the connecting cable into the indoor unit e Don t connect the cable to the indoor unit Make a small loop with the cable for easv connection later Tape the drain hose and the connecting cable e Connecting cable Indoor unit installation e Hang the indoor unit from the hooks at the top of the instal lation plate e Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall Indoor unit Installation plate 8cm 24 Roo
18. sary to apply a evacuatin Discharge the refrigerant gradually if it is dis charged too suddenly the refrigeration oil will also be discharged Service Manual 51 Troubleshooting Guide Evacuation All amount of refrigerant leaked LAN 150217 Outdoor 1 Connect the vacuum pump 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 52 Conditioner 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum 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 Gas Charging After Evacuation Troubleshooting Guide Indoor unit Charging cylinder Outdoor unit e Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis con nected from the vacuum pump to the valve at the bottom of the cylinder If you are using a gas cylinder also use scale and reverse the cylinder
19. so that the sys tem can be charged with liquid 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air Be careful of the liquid refriger ant 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 refrigerant If the system can not be charged with the spec ified amount of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 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 dis charged f the system has been charged with liquid refrigerant while operating the air conditioner 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 cha
20. 0A10251B 3530 10251 447910 BARRIER ASSY OUTDOOR 4790 10057 4790A10057B 4790A10057B 4790A10057B R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20121D 4681A20121D 4681A20121D 4681A20121D R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H00982E 4H00982E R 552102 1 TUBE CAPILLARY BEND 5210A30041A R 552111 TUBE ASSEMBLY CAPILLARY 5211A21143K 5211A21143L 52114101972 5211A30708G R 552116 TUBE ASSEMBLY REVERSING 5211A20188Y R 552201 VALVE CHECK R 552202 VALVE REVERSING 5220AR3228J R 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 5220A20005B 5220A20005B R 552203 2 VALVE SERVICE 2A00393X 52204200015 52204200015 5220420006 H 554031 CONDENSER ASSEMBLY BENT 5403A20198M 5403A20198M 5403A20199H 5403A20197H R 554160 COMPRESSOR SET 5417A20012C 2520UZBP2BA 2520UGAP2GA 2520UGHP2AA R 559010 FAN ASSEMBLY PROPELLER 5901A10055A 5901A10055A 5901A10055A 5901A10055A R 561410 COIL ASSEMBLY REVERSING VALVE 6141AR3733R R 567502 6750A30001C 6750U3L023A 6750U L061A 6750U L076A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995 20441 4995 20441 49954204410 4995 20441 WOCZZ CAPACITOR DRAWING 2 01451 6120 2164 2 01451 2 01451 H NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 71 Replacement Parts List Parts List Outdoor LOCATION PART No
21. 197H 5403A20197H 5403A20199F R 554160 COMPRESSOR SET 2520UZBP2BA 2520UGAKP2AA 2520UGEP2AA 2520UKMP2BA R 559010 FAN ASSEMBLY PROPELLER 5901 10055 5901 10055 5901 10055 5901 10055 561410 COIL ASSEMBLY REVERSING VALVE 6141A20017A 6141A20017A 6141A20017A 3A02028Y R 567502 O L P 6750U3L023A 6750U LO40A 67500 1077 6750U L027A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20441E 4995A20441A 4995A20441A 4995A90144A R WOCZZ CAPACITOR DRAWING 6120AR2194H 2H01451T 2H01451T 2H01451T R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 70 Room Air Conditioner Parts List Outdoor Replacement Parts List e DESCRIPTION PART No REMARKS LS H0964DLO 5 007640 0 AS C0964DMO AS C1264DMO 237204 PANEL SIDE 3720 10238 3720A10238A 3720A10238A 3720A10238A R 237205 PANEL SIDE 3720A10239A 3720A10239A 3720A10239A 3720A10239A R 430411 BASE ASSEMBLY OUTDOOR 3041A20072D 3041A20072A 3041A20072B 3041A20072B R 435301 GRILLE DISCHARGE 3530A10250B 3530A10250B 3530A10250B 3530A10250B R 435511 COVER ASSY CONTROL OUTDOOR 3551 30136 3551 30136 3551A30136A 3551 30136 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721 10153 3721A10153B 3721A10153B 3721A10153B R 437212 GRILLE REAR 3530 10251 3530A10251B 353
22. 40 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 See to that the starting voltage is maintained at more than 90 percent of the rated voltage 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 Refer to page 26 7 Always install an earth leakage circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the normal func tion 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 in each active phase conductors 28 Hoom Air Conditioner Checking the
23. 40x270x153 840x270x153 717x481x228 717x481x228 717x481x228 717x481x228 Net Weight Indoor Outdoor kg 7 7 7 7 24 24 24 25 Refrigerant g 720 r22 750 R410A 720 R410A 850 R410A Airflow Direction Control Up amp Down Airflow Direction Control Left amp Right Chaos Wind 24 24 ON OFF 24 24 Self Diagnosis L C A wireless L C A wireless L C A wireless L C A wireless Service Valve Liquid Gas inch mm 1 4 6 35 1 4 6 35 1 4 6 35 1 4 6 35 3 8 9 52 3 8 9 52 3 8 9 52 1 2 12 7 Sleeping Operation Drain Hose Connecting Cable 1 0mm x3 0 75mm2x2 1 0mm x3 0 75mm x2 1 0mm x3 0 75mm x2 1 0mm x3 0 75mm x2 Power Cord 1 0mm 1 0mm 1 0mm Service Manual 1 0mm 17 Product Specifications Table 3 Item Model Name Unit LS H1865DM0 LS H2665DM0 AS H1865DM0 AS H2465DM0 Cooling Capacity Btu h Heating Capacity 18 500 24 000 18 500 24 000 19 800 26 400 19 800 26 400 Moisture Removal I h 1 8 2 9 1 8 2 9 Power Sour
24. 4DMO LS H1264DMO Cooling Capacity Btu h Heating Capacity 7 800 9 500 12 100 12 000 8 050 10 350 13 200 13 200 Moisture Removal 1 1 2 1 2 1 2 Power Source V Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz Indoor m min Air Circulation Outdoor 5 0 5 7 5 8 6 6 8 8 9 5 8 8 9 5 20 20 22 22 Indoor Noise Level Outdoor dB A 3 32 33 41 41 47 47 49 49 Cooling W Input Heating Running Cooling Current Heating E E R Cooling C O P Heating Btu hw Motor Output Indoor Outdoor W 7 7 14 22 22 22 Dimensions Indoor WxHxD Outdoor 840x270x153 840x270x153 840x270x153 840x270x153 717x481x228 717x481x228 717x481x228 717x481x228 Indoor Net Weight Outdoor kg 7 7 7 7 24 24 25 27 Refrigerant g 800 R410A 820 R410A 850 R410A 800 R22 Airflow Direction Control Up amp Down Airflow Direction Control Left 8 Right Chaos Wind 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF Self Diagnosis L C D wireless L C D wireles
25. 551A20156A 3551A20156A 3551A20156A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681 20055 4681A20055A R 152302 FILTER MECH A C 5230 20051 5230A20051A 5230A20051A 5230A200581A R 159901 VANE HORIZONTAL 5990A20048A 5990A20048A 5990 20048 5990A20048A 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157A 4995A10157D 4995A10157D 4995A10157D 263230 THERMISTOR ASSEMBLY 6323 20004 6323A20004A 6323A20004A 6323 20004 R 264110 POWER CORD ASSEMBLY 6411A20013E 6411 20013 6411A20013E 6411A20013E 267110 REMOTE CONTROLLER ASSEMBLY 6711A90032L 6711A90032M 6711A90032M 6711 90032 268712 PWB PCB ASSEMBLY DISPLAY 6871A20574A 6871A20574A 6871A20574A 6871A20574A R 268714 PWB PCB ASSEMBLY MAIN 6871A20572A 6871A20572C 6871A20572A 6871A20572C 342800 BEARING 4280A20004B 4280A20004B 4280A20004B 4280A20004B 346810 MOTOR ASSEMBLY INDOOR 4681A20151A 4681A20151A 4681A20151A 4681A20151B 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211A21363A 5211A21363A 5211 213638 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20218A 5421A20218A 5421A20218A 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901A20017F 5901A20017F 668713 PWB PCB ASSEMBLY SUB 6871A20577R 6871A20577D 6871A20577E 6871A20577F R 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301A20011A 3301A20011A 3301 20011 WOCZZ
26. 6871A20572A 6871A20572C 6871A205720 342800 BEARING 4280A20004B 4280A20004B 4280A20004B 42804200048 346810 MOTOR ASSEMBLY INDOOR 4681A20151A 4681A20151A 4681A20151B 4681A20151B R 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211A21363A 5211A21363B 52114213638 R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421 20218 5421A20218A 5421 20218 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901A20017F 5901A20017F R 668713 PWB PCB ASSEMBLY SUB 6871A20577B 6871 20577 6871A20577C 6871A205770 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301A20011A 3301A20011A 3301A20011A WOCZZ CAPACITOR DRAWING 3H01487K 3 01487 3H01487K 3 01487 R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 66 Air Conditioner Parts List Indoor Replacement Parts List LOSATION DESCRIPTION PAT No REMARKS No LS H0964DL0 AS C0764DM0 AS C0964DM0 AS C1264DM0 131410 CHASSIS ASSEMBLY 3141A20019A 3141 20019 3141A20019A 3141A20019A 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531 10307 3531 10307 3531A10307B 3531 10307 8 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A14002F 3531A14002E 3531 14002 3531 14002 135516 COVER ASSEMBLY MOTOR 3551 20156 3
27. 70A90240A ASSY 6871420574 A 6871 20624 LED4 LED3 oe s ei PWB P No 6870A90240B ASSY 6871420624 1 R03G R04G RECEIVER LED1 LED2 1 Service Manual 47 Troubleshooting Guide IM Troubleshooting Guide 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER 2 GAS SIDE COMPRESSOR 2 Cooling amp Heating Models INDOOR UNIT OUTDOOR UNIT LE CHECK VALVE Heating Model only lt 000 CAPILLARY TUBE LIQUID SIDE CONDENSER y D eer 2 REVERSING ACCUMU VALVE LATOR CO Heating Model Only COMPRESSOR COOLING lt HEATING 48 Room Air Conditioner 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 Open position Closed position Flare nut piping connection Service Service port port To outdoor unit Works Shaft position Shaft position Service port Shi
28. 712 PWB PCB ASSEMBLY DISPLAY 6871A20624A 6871A20624A 6871A20624A 6871A20624A R 268714 PWB PCB ASSEMBLY MAIN 6871A20572C 6871A20572C 6871A20572C 6871A20572C R 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20067C 4681A20003D 4681A2067C 4681A20003D R 35211B TUBE ASSEMBLY TUBING 5211A21378B 5211A21378A 5211A21378B 5211A21378C R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20220A 5421A20220A 5421A20220A 5421A20220A R 359011 FAN ASSEMBLY CROSS FLOW 5901 2441 5901A92441E 5901AR2441E 5901AR2441E 668713 PWB PCB ASSEMBLY SUB 66871 20576 6871A20576A 6871A20576G 6871 20576 733010 PLATE ASSEMBLY INSTALL 3301A20002A 3301A20002A 3301A20002A 3301A20002A R WOCZZ CAPACITOR DRAWING 3H01487G 3H01487G 3H01487G 3H01487G R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 68 Air Conditioner Parts List Indoor Replacement Parts List PART No i LS C1865DMO 15 26650 0 ere 131410 CHASSIS ASSEMBLY 3141A20020A 3141A20020B R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20252A 3531A20252A R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A20253D 3531A20253D R 135516 COVER ASSEMBLY MOTOR 3551A20154A 3551A20154B R 146811
29. 8 R 237205 PANEL SIDE 3720 10239 3720A10239A 3720A10239A 3720 10239 430410 BASE ASSEMBLY OUTDOOR 3041A20072C 3041A20072D 3041A20072D 3041A20072D R 435301 GRILLE DISCHARGE 3530A10250B 3530A10250B 3530A10250B 3530A10250B R 435511 COVER ASSY CONTROL OUTDOOR 3551A30136A 3551A30136A 3551A30136A 3551A30136A R 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A10153B 3721A10153B 3721A10153B 3721A10153B R 437212 GRILLE REAR 3530A10251B 3530A10251B 3530A10251B 3530A10251B R 447910 BARRIER ASSY OUTDOOR 4790A10057B 4790A10057B 4790A10057B 4790A10057B R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20121D 4681A20121D 4681A20121D 4681A20121D R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H00982E 4H00982E R 552102 1 TUBE CAPILLARY BEND 5210A21146Y 5210A21146S 5210A21146V 5210A23613A R 552102 2 TUBE CAPILLARY BEND 5210A21146X 5210A21146T 5210A21146W 5210A23613B R 552111 TUBE ASSEMBLY CAPILLARY 5211A30708E 5211A30708C 5211A30708D 5211 10197 R 552116 TUBE ASSEMBLY REVERSING 5211A20188W 5211A20188V 5211A29021B 5211A29021C R 552201 VALVE CHECK 5220AR7182A 3H01552F 3H01552F 3H01552F R 552202 VALVE REVERSING 5220AR3228J 5220AR3228J 5220AR3228D 5220AR3084E R 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 5220A20005B 5220A20005B R 552203 2 VALVE SERVICE 5220A200018 52204200015 5220A20006J 2H01890P R 554031 CONDENSER ASSEMBLY BENT 5403A20198M 5403A20
30. 901A10032B 5901A10032A 5901A10032B R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Y 3A02028Y 3A02028Y R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20261R 4995A20261R 4995A00006B 4995A20261Q R WOCZZ CAPACITOR DRAWING 0CZZA10001A 0 22 10001 2A00086Y 0 22 10001 H NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 73 November 2004 3828 20462 Printed in Korea
31. MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230 20052 5230 20052 159901 VANE HORIZONTAL 5990A20049A 5990A20049A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10168B 4995A10168D R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411A20047A 6411A20047B R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90032M 6711A90032M R 268712 PWB PCB ASSEMBLY DISPLAY 6871 20624 6871 20624 268714 PWB PCB ASSEMBLY 6871 20572 6871 20572 342800 BEARING 4280 20004 4280 20004 346810 MOTOR ASSEMBLY 4681 200030 4681 20067 352118 TUBE ASSEMBLY TUBING 5211A21378A 5211A21378B R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20220A 5421A20220A R 359011 FAN ASSEMBLY CROSS FLOW 5901AR2441E 5901AR2441E R 668713 PWB PCB ASSEMBLY SUB 6871A20576C 6871A20576D R 733010 PLATE ASSEMBLY INSTALL 3301A20002A 3301A20002A R WOCZZ CAPACITOR DRAWING 3H01487G 3H01487G R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 69 Replacement Parts List Parts List Outdoor LOCATION PART No DESCRIPTION REMARKS No AS H0764DMO AS H0964DMO AS H1264DMO LS H1264DM0 237204 PANEL SIDE 3720 10238 3720A10238A 3720A10238A 3720 1023
32. PIPINO it 29 dictse rmm 30 P CT I ES 30 Air purging with vacuum i isa gie e ere 30 Test 1 is As laa 32 EE Ee 33 CODITOIS 33 11 19 58251516 EE 37 Self di gnosis Ge EE 37 Remote Control Operations asses eene 38 U EE 39 jte som m RM Tc 39 Schematic Le HC 42 reene 42 Wiring Diagram EE 43 Components Location eseist aha de Lus 46 Troubleshooting i B i cond Eau dde 48 Refrigeration Cycle Diagram cela ote 48 e EI 49 Cycle era uu tea 55 El ectrenie Pais E 56 Exploded KA 63 Replacement Parts ee ae ale eee 65 2 Room Air Conditioner LG 1 2 3 4 5 6 7 8 9 10 Code Type Code of Model Meaning 1 Producing Center A Z L Chang won R22 N India Refrigerant Chang won R410A Z Brazil C Chang won R407C D Indonesia T China M Mexico K Turkey R22 V Vietnam E Turkey R410A S Out Sourcing H Thailand 2 Product Type A Z S Split Type Air Conditioner 3 Cooling Heating Inverter A Z C Cooling only V AC Inverter C O H Heat pump AC Inverter X C O E Heater Q DC Inverter C O Z E Heater W DC Inverter H P 4 5 Capacity 0 9 Cooling Heati
33. When the intake air temperature reaches 0 5 C below the setting temp the compressor and the outdoor 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 temperature is detected and the setting temp is automatically set according to the intake air temperature 26 lt Intake Air Temp 2 25 24 C lt Intake Air Temp lt 26 C 2 Intake Air Temp 1 C 18 C lt Intake Air Temp lt 24 C 2 Intake Air Temp 0 5 C Intake Air Temp lt 18 C gt 18 C Service Manual 33 e While in compressor off the indoor fan repeats low airflow speed and pause e While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidification operation and 4 min compressor off repeat Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C 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
34. a trap The drain hose should point downward for easy drain flow to prevent water entering the room Fix the piping onto the wall by saddle or equivalent Seal a small opening Downward slope around the pipings with gum type sealer Do not make drain piping O eise Do iotraise drain water Air d Water Water Water 5 leakage leakage leakage Tip of drain hose Less than dipped in water Q 50 Ditch Service Manual 29 Air purgingd PURGING Air and moisture remaining the refrigerant system have undesirable effects as indicated below e Pressure in the system rises Operating current rises e Cooling or heating efficiency drops e Moisture in the refrigerant circuit may freeze and block cap illary tubing Water may lead to corrosion of parts in the refrigeration system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncondensables and moisture from the system Preparation Check that each tube 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 complet ed 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 e Connect the mani
35. ain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassis Tubing holder Flaring work and connection of piping Indoor unit installation Remove the spacer Ensure that the hooks are properly seated on the installa tion plate by moving it left and right Connecting cable 1 Drain hose Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound A CAUTION Installation Information For left piping Good case For left piping Follow the instruction below Press on the upper side of clamp amp Service Manual 25 Flaring work and connection of piping CAUTION Bad case e Following bending type from right to left could cause problem of pipe damage Align the center of the pipings and sufficiently tighten the flare nut by hand Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Outside diameter Torque mm inch kg m 26 35 1 4 1 8 29 52 3 8 4 2 012 7 1 2 5 5 215 88 5 8 6 6 219 05 3 4 6 6 26 Hoom Air Conditioner Outdoor unit Gas side piping Bigger diameter
36. an Do not use harsh Do not touch the metal parts of the product detergents solvents etc when removing the air filter They are very sharp e There is risk of fire electric shock or damage to the 7 There is risk of personal injury plastic parts of the product Do not step on or put anyting on the product Do not insert hands or other objects through outdoor units the air inlet or outlet while the air conditioner is plugged in There is risk of personal injury and failure of product There are sharp and moving parts that could cause personal injury Service Manual 9 Dimensions N Dimensions This symbol 5 you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner 11031107 3 This symbol indicates special notes Installation plate 7k 9k 12k Btu Series 840 270 153 10 Room Air Conditioner Dimensions Installation plate 18k 24 Btu Series Dimension W mm 1090 H mm 300 D mm 178 Service Manual 11 Dimensions Gas side 3 way valve Liquid side 2 way valve x Gen 7k 9k 12k Seri
37. andle of drain pan and join drain hose and connecting hose according to the figure by Adhesive e Connecting part Drain hose Only the desired direction Service Manual 21 Flaring work and connection of piping Flaring work and connection of piping Flaring work Main cause for refrigerant leakage is due to defect in the flaring work Carry out correct flaring work using the follow ing procedure Cut the pipes and the cable e Use the piping kit accessory or pipes purchased locally Measure the distance between the indoor and the outdoor unit e Cut the pipes a little longer than the measured distance e Cut the cable 1 5m longer than the pipe length D a S ipe A 901 fi Burr removal Completely remove all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe in a downward direc tion as you remove burrs in order to avoid dropping burrs into the tubing Pipe Reamer Point down QN Putting nut on 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 Flare nut Copper tube S Flaring work Firmly hold copper pipe in a die in the dimension shown in the table above Clamp handle Red arrow mark 22 Room Air Conditioner Carry out flaring work using flaring tool as shown below
38. animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are minimum e Select a place so that the warm air and noise from the air conditioner do not disturb neighbors f than 60 More than 10cm More than 10cm More than 70cm 20 Room Air Conditioner Rooftop Installations e f 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 Capacity Pipe Size Standard Additional Btu h Length Elevation Length Refrigerant Buh GAS LIQUID m B m 3 8 09 52 1 4 06 35 4075 7 15 20 i 12 0127 14 06 35 40 75 7 15 20 129127 1 4 06 35 40 75 15 30 20 18k 28k 5 8 015 88 1 4 06 35 40 75 15 30 20 5 8 015 88 3 8 09 52 40 75 15 30 30 5 8 01588 38 0952 75 15 30 30 30k 38k 34 919 05 3 8 09 52 75 15 30 50 Indoor unit Outdoor unit Outdoor unit Indoor unit Outdoor unit If case more than 5m A CAUTION Capacity is based on standard length and maxi mum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters W The wall you select should be strong and solid enough to prevent
39. applied the SRAC O R TP 10004 SE POR I lt 9 Se 9 vm Emm e ER G ta E jT BE E um des 2 E lt S I W pe g T KT S Sa T JE X 1 xi 211 Ee od G ie DC LON UE cM O Se e Q nT o Ed gt CS on orlworking Eyelet i o BARE PCB 6870A90238A ASM 6871420572 G Schematic Diagram Indoor Unit Models 7k 12k 18k 24k only Model WIRING DIAGRAM a x E m 19 BL WH Ribbed CONDUCTIVE ENCLOSURE MOTOR ONLY OR MAIN PWB ASM TRIAC MOTOR CN MOTOR 4 3 an aner OPTION PWB ASM H CL EAN PLASMA Q fo FUSE GN YL OUTDOOR UNIT CN N2 250 2 CN DISP1 CN DISP2 ICN 12VCN HVB 1 CUR CN UD CN OPTION C DISPLAY PWB ASM Models 7k 9k 12k 18k 24k Heat pump Model BR BK Plained BL WH Ribbed CONDUCTIVE ENCLOSURE MAIN 5 TRIAC CN MOTOR
40. ation 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 Check the related circuit of RY FAN Check the indoor temperature sensor is disconnected or not About 10kQ at 25 d Check Relay RY COMP for driving compressor When the power About AC220V 240V is applied to the connecting wire terminal support transferred to compressor PWB Assembly is normal Check the circuit related to the relay Check point COMP ON COMP OFF Between Micom No 59 and GND id DEON Between IC01M No 15 Below DC 1V t DC12V and GND app PROUD Turn off Main Power l1 Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Check the open or short of conmecting wires between indoor and outdoor 58 Hoom Air Conditioner When indoor Fan does not operate Turn off Main power d Check the connection of CN MOTOR d Check the Fan Motor d Check the Fuse AC250V T2A d Troubleshooting Guide Check the related circuit of indoor Fan M
41. ce V Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz Indoor Circulation Outdoor m min 13 15 13 15 42 42 42 42 Indoor Noise Level Outdoor dB 3 40 45 40 45 56 56 56 56 Cooling W Input Heating 2 700 2 330 2 770 2 360 Running Cooling A Current Heating 9 2 12 6 8 2 10 5 8 4 12 6 8 2 10 5 E E R Cooling Btu hw C O P Heating W W 9 3 8 2 10 3 2 73 3 2 3 Indoor Motor Output Outdoor W 23 25 6 23 25 6 72 82 9 72 82 9 Dimensions Indoor WxHxD Outdoor 1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178 840 x 5777 x 276 840 x 5777 276 840 x 5777 x 276 870 x 655 x 320 Net Weight Indoor Outdoor kg 13 13 13 13 54 60 54 60 Refrigerant g 1200 R22 1450 R22 1250 R410A 1450 R410A Airflow Direction Control Up amp Down O O O Airflow Direction Control Left amp Right O O Chaos Wind O O Timer 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF Self Diagnosis O O L C D wireless L C D wireless L C D wireless L C D wire
42. ce plugging or unplugging the power plug There is risk of fire or electrical shock There is risk of fire or electrical shock Grasp the plug to remove the cord from the Do not place a heater or other appliances near outlet Do not touch it with wet hands the power cable e There is risk of fire or electrical shock e There is risk of fire and electric shock Do not allow water to run into electrical parts Do not store or use flammable gas or com bustibles near the air conditioner There is risk of fire failure of the product or electric There is risk of fire or failure of product shock Service Manual 7 Safety Precautions Unplug the unit if strange sounds odors or Be cautious that water could not enter the smoke comes from it product e There is risk of electric shock or fire e There is risk of fire electric shock or product dam age A CAUTION Installation Always check for gas refrigerant leakage after Install the drain hose to ensure that water is installation or repair of product drained away properly Low refrigerant levels may cause failure of product bad connection may cause water leakage Keep level even when installing the product Use two or more people to lift and transport the air conditioner To avoid vibration or water leakage Avoid personal injury 8 Hoom Air Conditioner Safety Use soft cloth to cle
43. e 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 Vacuum pump Service Manual 31 Test running TEST RUNNING 1 Check that all tubing and wiring have been properly con nected 2 Check that the gas and liquid side service valves are fully open Settlement of outdoor unit e Anchor the outdoor unit with a bolt and nut 10mm 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 conveyed to the hose secure the unit with an anti vibration bushing 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 temperature and the discharge is more than 8 C 46 F Cooling or Heating Discharge temperature 4 For reference the gas side pressure of o
44. em counter clockwise approximately 90 wait for about 2 3 sec and close it 3 way valve Close 4 Apply soap water liquid neutral detergent the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping 2 way valve Open 5 If bubbles come out the pipes have leakage ap Hexagonal wrench 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 tubing length and capacity of the pump The following table shows the time required for evacuation Required time for evacuation when 30 gal h vacuum pump is used If tubing length is less than 10m 33 ft if tubing length is longer 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 vacuum pump Finishing the job With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve e Turn the valve stem of gas side valve counter clockwise to fully open the valve e Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose Replac
45. es n 717 Sage 498 229 r m 270 L2 mm SS E m 464 L4 mm d 2 m 130 12 Hoom Air Conditioner Dimensions Gas side Liquid side DIM MODE AS H2465DMO mm 870 H mm 655 mm 320 L1 mm 370 L2 mm 340 L3 mm 25 L4 mm 630 L5 mm 25 L6 mm 546 L7 mm 162 L8 mm 162 L9 mm 54 L10 mm 74 5 L11 mm 79 Service Manual 13 Dimensions Liquid side 2 way valve Gas side 3 way valve MODEL DIM unit LS C1865DM0 W mm 801 H mm 555 D mm 262 L1 mm 339 L2 mm 37 L3 mm 543 6 L4 mm 11 4 L5 mm 591 L6 mm 105 17 105 18 72 5 L9 mm 86 4 L10 mm 77 14 Room Air Conditioner Dimensions Gas side 3 way valve Liquid side 2 way valve MODEL AS C1865DM0 LS C2465DM0 AS C2465DM0 DIM AS H1865DM0 LS H1865DM0 LS H2465DM0 840 577 D 276 L1 mm 337 L2 mm 64 L3 mm 611 L4 mm 16 L5 mm 156 Service Manual 15 Product Specifications l Product Specifications Table 1 Item Model Name Unit AS H0764DMO AS H0964DMO AS H126
46. fold 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 e Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder 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 30 Room Air Conditioner e Do a leak test of all joints of the tubing both indoor and out door and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth e 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 Charge hose Nitrogen gas cylinder in vertical standing position Air purgingd Soap water method 1 Remove the caps from the 2 way and 3 way valves Gas side 2 Remove the service port cap from the 3 way valve 3 To open the 2 way valve turn the valve st
47. gh High Setting Temperature 22 22 23 24 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 Service Manual 35 Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room tem perature and resets in 18 1 minutes e 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 f you want to stop the operation re press the button 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 e f the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing 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
48. he 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 e 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 Service Manual 39 Disassembly 2 To remove the Control Box e Remove securing screws e Pull the control box out from the chassis carefully lt 3 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 CAUTION When repair do not damage the Caution label 40 Air Conditioner QU Disassembly e 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 e Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan e Loosen the screw securing the cross flow fan to the fan motor do not remove e Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cro
49. hina Turkey R22 Turkey R410A 1 Producing Center L A H Thailand s C H x 2 Refrigerant India Brazil Indonesia Mexico Vietnam Out sourcing MD lt lt O N Z Product Type A Z Split Type Air Conditioner 3 Cooling Heating Inverter 2 Cooling only Heat pump C O E Heater E Heater V AC Inverter C O AC Inverter Q DC Inverter C O W DC Inverter H P 4 5 Capacity Cooling Heating Capacity Ex 09 9 000 Btu h 1 115V 60Hz 220V 60Hz 208 230V 60Hz 200 220V 50Hz 220 240V 50Hz 110V 50 60Hz 380 415V 50Hz 380 415V 60Hz Name of Chassis of Unit 6 Electric Range A 220V 50Hz 3Phase B 208 230V 60Hz 3Phase C 575V 50Hz 3Phase D 440 460 60Hz 3Phase E 265V 60Hz F 200V 50 60Hz P No Om 5515 L 54 55 Division Panel Type Deluxe 7 Chassis 8 Look Ex LSP SP Chassis Look Color Artcool Model S6 Fighting Look 50 LG1 SR LG2 SEMI PANEL ST OEM1 OEM2 Panel Type Deluxe LG3 uz zor 9 Function Basic Basic 4Way Plasma Filter Plasma Filter 4 Way Tele LCD Tele LCD Nano plasma 4Way NBF _F A changeove A clean Low A NBF _F A changeove A clean 4way Low A Tele LED 4way Internet Plasma F 4Way Oxy generator NBF F A changeove A clean NBF F A changeove
50. ide the unit Connecting cable NOTE If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Indoor unit installation Hook the indoor unit onto the upper portion of the installa tion plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure that the hooks are properly seated on the installa tion plate by moving it left and right Connecting cable t Drain hose Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots click ing sound Flaring work and connection of piping Connecting the pipings to the indoor unit and drain hose to drain pipe Align the center of the pipes and sufficiently tighten the flare nut by hand 1 Flare nut Pipes Indoor unit tubing e Tighten the flare nut with a wrench Indoor unit tubing Outside diameter Torque mm inch kom 06 35 1 4 18 09 52 3 8 4 2 012 7 1 2 5 5 015 88 5 8 6 6 019 05 3 4 6 6 When extending the drain hose at the indoor unit install the drain pipe Adhesive Vinyl tape narrow Wrap the insulation material around the con necting portion Overlap the connection pipe insulation material and the indoor unit pipe
51. 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 operation 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 carry ing out defrost control According to the procedure stated above the determination is made again When the defrost control time is 7 min or longer defrost control is then carried out e 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 present temperature of the indoor pipe the minimum temperature of the indoor pipe When the difference is 5 C or higher defrost con trol is completed and heating mode operation is carried out e While in defrost control if the defrost time determined before the start of defrost control is completed defrost control stops and heating mode operation is carried out regardless of the above condition 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 e While in defrost control the compressor is on and the indoor fan the outdoor fan and the 4 way valve are off 34 Room Air Conditioner
52. 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 36 Air Conditioner 1 Heating Model 2 Cooling Model Operation Indicator Operation Indicator O e Cooling Soft Dry Fan Heating e Cooling Soft Dry Fan L Deicer Indicator 2 Compressor on Indicator Hot start Deice Self diagnosis Error Error Display LED A Code Indoor body operation LED Error contents DVC check point e Indoor room temperature e Indoor Thermistor 1 thermistor open short assembly check e Indoor pipe temperature 4 3sec PI lt PI asec thermistor open short Service Manual 37 controls will look like the following START STOP BUTTON Operation starts when this button is pressed and f transmitter stops when the button is pressed again 2 OPERATION MODE SELECTION BUTTON Used to select the operation mode 3 ROOM TEMPERATURE SETTING BUTIONS Used to select the room temperature 4 INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low medium high and CHAOS 5 1 5 JET COOL 6 Used to start or stop the speed cooling A 3 speed cooling operate
53. l have been collected in the outdoor unit Power Failure Compensation Function User Selection ON OFF 1 Operation Sequence Press the forced switch until BUZZER sounds 2 times beep beep 2 Release the forced switch if BUZZER sounds 8 Check the function selection ON OFF with the operation LED 2 Checking function selection ON OFF Function Selection ON One time blinking of operation LED would repeat 4 times Function Selection OFF Two times blinking of operation LED would repeat 4 times Operation e DISPLAY 1 C O 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 Comp Running Incidator While in appliance operation ON while in outdoor unit compressor running OFF while in compressor 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
54. less Liquid Service Valve Gas inch mm 1 4 6 35 1 4 6 35 3 8 9 52 3 8 9 52 1 2 12 7 1 2 12 7 5 8 15 88 5 8 15 88 Sleeping Operation O O O O Connecting Cable 1 5mm x0 75mm 1 5mm x0 75mm 1 5mm x0 75mm 1 5mm x0 75mm Power Cord 18 Room Air Conditioner 1 5mm 1 5mm 2 5mm 2 5mm Table 4 Item Model Name Unit LS C1865DM0 Product Specifications LS C2465DM0 Cooling Capacity Moisture Removal Btu h I h 18 500 24 000 1 8 2 9 Power Source 0 V Hz 10 220 240V 50Hz 10 220 240V 50Hz Air Circulation Indoor Outdoor m min 13 15 42 42 Noise Level Indoor Outdoor dB A 3 40 45 56 56 Input W 2 700 Running A 8 5 12 6 E E R Btu hw 9 5 8 89 Motor Output Indoor Outdoor W 22 25 6 61 82 9 Dimensions WxHxD Indoor Outdoor 1090 x 300 x 178 1090 x 300 x 178 801 x 555 x 262 540 x 577 x 276 Net Weight Indoor Outdoor kg 13 5 13 5 60 60 Refrigerant g 1050 R22 1300 R22 Airflow Direction Control Up amp Down O O Airflow Direction Control Left amp Right O O Chaos Wind O O Timer
55. m Air Conditioner Connecting the pipings to the indoor unit and the drain hose to drain pipe e Align the center of the pipes and sufficientiv tighten the flare nut bv hand D 0205 Flare Indoor i Tighten the flare nut with wrench Indoor unit tubing Outside diameter Torque mm inch kg m 26 35 1 4 1 8 09 52 3 8 4 2 012 7 1 2 5 5 015 88 5 8 6 6 019 05 3 4 6 6 e When extending the drain hose at the indoor unit install the drain pipe Drain hose Adhesive Vinyl tape narrow Wrap the insulation material around the con necting 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 een ss mec H EE UC e Wrap the area which accommodates the rear piping hous ing section with vinyl tape Connection lt Indoor pipe unit piping Vinyl tape Wrap with vinyl tape wide 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 Reroute the pipings and the drain hose across the back of the chassis Piping for passage through piping hole Set the pipings and the dr
56. nd terminal There is risk of fire of electric shock There is risk of electric shock ink CI de k W Install the panel and the cover of control box Do not modify or extend the power cord securely e There is risk of fire of electric shock e No grounding may cause electric shock Service Manual 5 Safety Precautions For re installation of the installed product Do not install remove or re install the unit by always contact a dealer or an authorized ser yourself vice center e There is risk of fire electric shock explosion or injury e There is risk of fire electric shock explosion or injury For installation always contact the dealer or Be cautious when unpacking and installing the an Authorized service center product e Sharp edges could cause injury Be especially care e There is risk of fire electric shock explosion or injury ful of the case edges and the fins on the condenser and evaporator 7 A KO fl Do not install the product on a defective instal Be sure the installation area does not lation stand deteriorate with age e If the base collapses the air conditioner could fall with it causing propertv damage product failure and personal injurv e It may cause injury accident or damage to the product 6 Room Air Conditioner Safety Precautions Operation Do not turn the air conditioner ON or OFF by Use a dedicated outlet for this applian
57. ng Capacity Ex 09 9 000 Btu h 6 Electric Range 1 9 1 115V 60Hz A 220V 50Hz 3Phase A Z 2 220V 60Hz B 208 230V 60Hz 3Phase 3 208 230V 60Hz C 575V 50Hz 3Phase 5 200 220V 50Hz D 440 460 60Hz 3Phase 6 220 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z Basic A Basic 4Way B Plasma Filter Plasma Filter 4 Way D Tele LCD E Tele LCD Nano plasma 4Way Nano Plasma F A changeove A clean Low G Nano Plasma F A changeove A clean 4way Low A H Tele LED 4way Internet J Plasma F 4Way Oxy generator K Nano Plasma F A changeove A clean L Nano Plasma F A changeove A clean 4way M Nano Plasma F A changeove A clean PTC N Nano Plasma F A changeove Autoclean 4way PTC P Nano Plasma F A changeove A clean 4way Low Q Negative ION A Clean R Nano Plasma Negative ION A Clean S 4way Nano Plasma F Negative ION Healthy dehumidification A Clean Nano F 4Way A changeove A clean U 10 Serial No 1 9 LG Model Development Serial No ARTCOOL COLOR Mirror White Blue Wood Metal gt Cherry Service Manual 3 1 2 3 4 5 6 7 8 9 10 Code of Model Meaning A Z Chang_won R22 Chang_won R410A Chang_won R407C C
58. otor Check the pattern Check the TRIAC The pin NO 58 of Micom and the part for driving TRIAC the input and output signal of ICO1M PIN NO 1 16 TRIAC Open Indoor Fan Motor never operate TRIAC short Indoor Fan Motor always operates in case of ON or OFF d Turn ON Main Power d Check the TRIAC high speed operation by remote control The Indoor Fan Motor is connected The voltage of PIN NO 1 orange and 3 yellow of CN MOTOR About AC 180V over TRIAC is not damaged About AC 50V over sw TRIAC Check Service Manual 59 Troubleshooting Guide When Vertical Louver does not operate Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor e f the regular torque is detected when rotating the Vertical Louver with hands Normal e Check the connecting condition of CN U D Connector e Check the soldering condition on PWB of CN U D Connector 42 Check the operating circuit of the Vertical Louver e Confirm that there is DC 12V between pin RED of CN U D and GND e Confirm that there is a soldering short at following terminals Between 60 6 62 and 63 of MICOM Between Gand of ICO1M Between and p of ICO1M 2 If there are no problems after above checks Confirm the assembly conditions that are
59. perature 18 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 Model While in heating mode or Fuzzy operation the Jet Cool key cannot be input 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 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 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 i Heat pump Model Cooling Model Room Temp gt 24 C 21 C lt Room Temp lt 24 C Temp lt 21 C Operating mode Cooling Cooling Healthv Dehumidification Heating Indoor FAN Speed High High Hi
60. ppin Closed Closed Closed pping with valve cap with valve cap with cap Air purging Open Closed Open Installation counter clockwise clockwise push pin or with vacumm pump Operation Open Open Closed with valve cap with valve cap with cap Pumping down Closed Open Open Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open Open Servicing with charging cylinder Gas charging Open Open _ Open Servicing with charging cylinder Pressure check Open Servicing Open Open with charging cylinder Gas releasing Open Servicing Open Open with charging cylinder Service Manual 49 Troubleshooting Guide Pumping Down Outdoor unit Purge the air e Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position Remove the valve stem caps and confirm that the valve stems are in the raised position 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 50 Conditione
61. ptimum condition is as below Cooling Outside ambient The pressure of the gas side Refrigerant TEMP service valve R 22 35 C 95 F A 5kg em G 56 8 71 0 P S 1 G R 410A 35 C 95 F 8 5 9 5kg cm G 120 135 P S 1 G 32 Room Air Conditioner NOTE If the actual pressure is 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 outdoor unit without loss in refrigerant gas 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 2 Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas 3 Close the liquid side service valve all the way in 4 Turn on the unit s operating switch and start the cooling operation 5 When the low pressure gauge reading becomes 1 to 0 5 2 G 14 2 to 7 1 P S I G fully close the gas side valve stem and then quickly turn off the unit At that time Pump Down has been completed and all refrigerant gas wil
62. r 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi cating 3 to 5kg cm g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and the ser vice 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 pressure side gauge of charge set should be used higher pressure gauge of 50kg cm2 range Troubleshooting Guide Balance Refrigerant of the 3 way Valve Gas leakage Outdoor unit e Procedure 1 Confirm that both the 2 way and 3 way valves 3 Open the valve Lo side on the charge set and are set to the back seat discharge the refrigerant until the gauge indi cates 0 kg cm G 2 Connect the charge set to the 3 way valve s If there is no air in the refrigerant cycle the port pressure when the air conditioner is not running Leave the valve on the charge set closed is higher than 1 kg cm G discharge the refrig Connect the charge hose to the service port erant until the gauge indicates 0 5 to 1 kg cm G if this is the case it will not be neces
63. rged with R 410A Pay attention not to charge R 22 Service Manual 53 Troubleshooting Guide Additional gas charging Gas leakage When refrigerant is insufficient by leakage recharge the unit with the refrigerant up to normal operating suc tion pressure Use the graph or the equation below to get operating suction pressure according to indoor and outdoor tem perature Suction pressure was measured at 3 way valve service port after operating 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 R401A According to Indoor amp Outdoor Temperature At operating the Unit for 10 minutes 2 5 33 5 ag _ 9 OTT 2 D 5 10 15 20 25 30 35 40 Indoor Temp P 3 0 0123 x Tout 0 8 x Tin Where P Suction Pressure kg cm g Tout Outdoor Temperature C Tin Indoor Temperature C 54 Hoom Air Conditioner Trouble analysis Troubleshooting Guide 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current Current Temp difference
64. s L C D wireless L C D wireless Liquid Service Valve Gas inch mm 1 4 6 35 1 4 6 35 1 4 6 35 1 4 6 35 3 8 9 52 3 8 9 52 1 2 12 7 1 2 12 7 Sleeping Operation Connecting Cable 1 0mm x3 0 75mm x2 1 0mm x3 0 75mm x2 1 0mm x3 0 75mm x2 1 0mm x3 0 75mm x2 Power Cord 16 Room Air Conditioner 1 0mm 1 0mm 1 0mm 1 0mm Table 2 Item Model Name Unit LS H0964DL0 AS C0764DM0 Product Specifications AS C0964DM0 AS C1264DM0 Cooling Capacity Heating Capacity Btu h 9 000 7 800 9 500 12 100 9 900 Moisture Removal l h 1 2 1 1 2 1 2 Power Source V Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz 10 220 240V 50Hz Indoor Air Circulation Outdoor m min 5 8 6 6 5 5 8 8 6 20 20 20 22 Indoor Noise Level Outdoor dB 3 33 32 33 41 47 47 47 49 Cooling Input Heating W Running Cooling Current Heating A 4 1 E E R Cooling C O P Heating Btu hw 11 Indoor Motor Output Outdoor W 7 7 7 14 22 22 22 22 Dimensions Indoor WxHxD Outdoor 840x270x153 840x270x153 8
65. s super high fan speed in cooling mode a 6 CHAOS SWING BUTTON 2 Se 10 Used to stop or start louver movement and set 7 TE 9 the desired up down airflow direction 2 quum 12 11 7 ON OFF TIMER BUTTONS 8 WOT 17 Used to set the time of starting and stopping operation 5 14 8 SETTING BUTTONS 15 RENE 16 Used to adjust the time 9 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the operation 10 SLEEP MODE AUTO BUTTON d Used to set Sleep Mode Auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 3 Operation Mode Cooling Operation DA 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature Auto Operation or Auto Changeover 08 13 PLASMA OPTIONAL Healthy Dehumidification Operation Used to start or stop the plasma function ri 14 HORIZONTAL AIRFLOW DIRECTION CONTROL Heating Operation Xt 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 buttons 17 AUTO CLEAN OPTIONAL Used to set Auto Clean mode e Cooling Modell D Heat Pump Model 38 Air Conditioner Disassembly MI Disassembly Indoor l A WARNING Disconnect the unit from power supply before mak ing any checks Be sure t
66. service com 72 Room Air Conditioner Parts List Outdoor Replacement Parts List DESCRIPTION PART No REMARKS 18650 0 LS H2665DM0 AS H1865DM0 LS C2665DM0 430410 BASE ASSEMBLY WELD OUTDOOR 3041A10027A 3041A10027A 3041A10027A 3041A10027A R 435301 GRILLE DISCHARGE 3530420007 3530420007 3530420007 3530420007 H 435511 COVER ASSEMBLY CONTROL OUTDOOR 3551 30079 3551A30079N 3551A30079N 3551 30079 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A20113A 3721A20113A 3721A20113A 3721A20113A R 437212 PANEL ASSEMBLY REAR 3721 20114 3721A20114F 3721A20114F 3721A20114F R 447910 BARRIER ASSEMBLY OUTDOOR 4791 20023 4791 20023 4791 20023 4791A20023A R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20028P 4681A20028P 4681A20028P 4681A20028P R 550140 GROMMET 4022U L005A 4022U L005A 4022U L005A 4022U L005A R 552102 TUBE CAPILLARY BEND 5210A31655A 5210A31655B 5210A31442K L 5210A20595X R 552116 TUBE ASSEMBLY REVERSING 5211A20270J 5211A20270L 5211A20270K R 552202 VALVE REVERSING 3A02027G 3A02027G 5220AR3228E R 552203 1 VALVE SERVICE 5220A20005B 5220 20002 5220A20006J 5220A20002C R 552203 2 VALVE SERVICE 2H01890P 2A00392E 5220A20005B 2A00392E R 554032 CONDENSER ASSEMBLV 5403A20205A 5403 20164 5403A20164E 5403A20164B R 554160 COMPRESSOR 2520UHFP2EA 2520UHPP2AB 2520UTFP2EA 2520UHMP2BA R 559010 FAN ASSEMBLY PROPELLER 5901 10032 5
67. side Check the abnormal condition for the component of Compressor Outdoor Fan Motor 4 way e Check the open or short of connecting wires between indoor and outdoor 62 Room Air Conditioner Exploded View Exploded View Indoor Unit Service Manual 63 Exploded View Outdoor Unit 7k 9k 12k Btu h Seriess rr 64 Room Air Conditioner View Outdoor Unit 18k 24k Seriess
68. ss flow fan Remove the left end of the cross flow fan from the self aligning bearing Service Manual 41 Option D cN L R
69. the following specifications Type B approved by HAR or SAA mm Grade NORMAL CROSS SECTIONAL AREA 5k 9k 12k 14K 18k 24k 28k 30k 32k 36k 38k 10 10 15 25 25 55 Unit A Indoor Indoor Indoor Indoor Outdoor Outdoor Cable Type B H05VV F HO5VV F HOSWV F HOSVV F HOSRN F HOSRN F The power connecting cable connected to the indoor and outdoor unit should be complied with the following specifications Type B approved by HAR or SAA NORMAL ii CROSS SECTIONAL mm AREA 0 75mm NORMAL Grade CROSS SECTIONAL 5k 12k 14k 18k 24k 28k AREA 1 0 15 2 5 Cable Type B HO7RN F HO7RN F HO7RN F Service Manual 27 Connecting the cable between indoor unit and outdoor unit Outdoor Unit Remove the control cover from the unit by loosening the screw Connect the wires to the terminals on the con trol board individually Terminal block Connecting cable Secure the cable onto the control board with the cord clamp Connecting cable Cover control Refix the control cover to the original position with the screw Use a recognized circuit breaker A between the power source and the unit A disconnecting device to adequately discon nect all supply lines must be fitted Circuit Grade SE Bk 14k 18k 24k 28k 30k 32k 36k 38k A 15 20 30 30
70. uide Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power 4 L After 10 seconds Turn on Main Power 42 Does beeping sound is made from the Indoor Unit JR Check the voltage of power About AC 220V 60Hz Primarily the operating condition of Micom is OK About AC 220 240V 50Hz Main power s voltage JL e Voltage applied to the unit e Connecting method of Indoor Outdoor connecting cable Check each load Indoor Outdoor Fan Motor Check PWB Assembly Compressor Stepping Motor and contacting Fuse condition of related connector Pattern damage Varistor ZNR01J Check the connection housing for contacting e Connector related to NO 3 Connector related to CN MOTOR e Connector contacting of Outdoor Fan Compressor e Display PCB Assembly Check wes Main PCB Board Operation Check Items Content Remedy SMPS Transformer Indoor unit Input Voltage About AC220V 240V 10 Check the power voltage e Replace Trans Output Voltage CO3D About DC12V 1 010 7805 Output e DC 5 e Replace 1 010 Indoor Outdoor unit e ICO1A KIA7036 Reset IC e Voltage of IC No 1 Replace faulty parts OSCO1B 8MHz DC 44 5V over and Soldering condition 56 Room Air Conditioner Troubleshooting Guide
71. vibration 1 Mount the installation plate on the wall with four type screws If mounting the unit on a concrete wall use anchor bolts Mount the installation plate horizontally by aligning the centerline using a level Installation Plate 2 Measure the wall and mark the centerline It is also important to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typi cally Drilling the hole through the wall for pip ing connections must be done safely Installation plate B Left rear piping Right rear piping CHASSIS Distance mm Grade A B C D 7k 9k 12k 75 65 105 65 18k 24k 105 65 260 65 Installation e Drill the piping hole with a 670mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side WALL Indoor Y 5 7mm 3 16 5 16 Open the Front Grille Pass Telephone Control Cord Wire through the hole which the power cord goes through Connect Telephone Control Cord Wire to the phone jack of telephone PCB of Control Box e Fix Telephone Control Cord Wire inside Control box so as not to disconnect e Close the Front Grille Remove the rubber stopple in the desired drain direc tion e Insert drain hose into the h
72. website http www lgservice com LG LG Room Air Conditioner SERVICE MANUAL MODELS AS H0764DMO AS C0764DMO AS H0964DMO AS C0964DMO AS H1264DMO AS C1264DMO AS H1865DMO LS H0964DLO AS H2465DMO LS H1264DMO LS C1865DMO LS C2665DMO LS H1865DMO LS H2665DMO CAUTION e BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS LG Model Name usun eener 3 Safety KEREN eet E EE 5 Dimensions 25554525 42 42 10 Symbols Used in this Manual ik 10 recom P E 10 Outdoor mcn em 12 Product e EE 16 E EE 20 Selection of the Best Location a 20 Piping Length and 51 52 10 EE 20 Howto Bixdnstallation Plate e e eer pet P quud oett e eiecti ette da cada ie 21 Drill a Hol inthe eim i aoe aia tan a d 21 Ri Bee 21 Flaring work and connection of piping 22 lage 22 Connection of Piping INdOOr acs oboe eed mei L iiU La a a 22 Connection of the Pipes Outdoor 26 Connecting the cable between indoor unit and outdoor unt 27 Connect the Cable to the Indoor EE 27 Connect the Cable to the Outdoor Unit EE 28 Checking the drainage and forming the pipings sse 29 Ei leie E 29 Form ina

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