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Room Air Conditioner

1. H P Models 81 Service Manual Exploded View Models AS W1865DH0 AS W1825DHO UE Chassis NM TTD 437212 ss CS54031D 82 Room Air Conditioner Replacement Parts List Parts List Indoor Replacement Parts List LOCATION DESCRIPTION issu REMARKS No AS WO96
2. FUSE _ PSC Module CN TH1 WCN NOISE1 Outdoor PWB ASSY 3854A20310N Service Manual 69 Schematic Diagram Indoor Unit Models AS W1264DH0 AS W1865DH0 AS W1264GH0 AS W1224DH0 AS W1424DH0 AS W1825DH0 AS W096E1G0 AS W126E1G0 TOP VIEW 8888 CN L R BL CN U D WH rd si CN P PCB ASM 6871A20156 PCB 6870A90255A O GD o 002 Roc W ew ROSF es EEPROM 8 E Ro G W e owe C02D y se T 888 cop BOTTOM VIEW Sen EE SEE E oco 5 Q s Sey mm umm 23 sy comme 8 Ho 062730 gag 8 5 La o coi wy 0000000 S foo o M o o KE o s 59 oA o a ow E ROZA 70 Room Air Conditioner Schematic Diagram Models AS W0964DH0 AS W0964GH0 TOP VIEW CN L RIBL CN U D WH O__GO
3. For right rear piping 1 Route the indoor tubing and the drain hose in the direction of rear right 2 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 connec tion later 3 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 uper side can cause drain pan to overflow inside the unit A CAUTION 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 18 Hoom Air Conditioner Drain hose Connecting cable 4 Indoor unit installation Hook the indoor unit onto the upper portion of the installation 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 installation plate by moving it left and right Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound Connecting the piping to the indoor unit and drain hose to drain pipe 1 Align the center of the pipes and sufficiently tighten the flare
4. TERMINAL BLOCK AC250V 15A BR cy fruse BL d T 4 4 z o o 2 z 3 WCN NOISE3 WCN NOISE1 Outdoor PWB ASSY 3854A20310H 68 Room Air Conditioner Schematic Diagram Models AS W1865DH0 AS W1825DH0 LINN HOOQNI OL WCN NOISE 4 BK WCN NOISE 1 BK TERMINAL BLOCK BR REVERSING HEATSINK OUTDOOR pipETH COMP H TH i OUTDOOR WIRING DIAGRAM BEVE Motor REACTOR otor d 000 BEE g BK OR YL BK H OO C O CN CN COIL1 CN COIL2 RY AWAY 15 250V CN TH2 CN TH1 CN D PIPE BL FUSE 4 WCN NOISE 3 BK WCN NOISE 2 BK Outdoor PWB ASSY 3854A20310M Models AS W096E1G0 AS W126E1G0 LINN HOOONI OL TERMINAL BLOCK BR RSING REACTOR 000 BK CN COIL1 CN COIL2 RY AWAY AC 250V 15A PETH COMP
5. mm Grade mms s 0 75 1 0 15 25 Unit A Indoor Indoor Indoor Indoor Cable Type B HOSVV F HOSVV F HO5VV F HOSVV F The power connecting cable connecting the indoor and outdoor unit should be selected according to the following specifications Type B approved by HAR or SAA mm Grade NORMAL CROSS SECTIONAL AREA K 9k 14k 18k 24k 0 75 1 0 15 25 Cable Type B HO7RN F HO7RN F HO7RN F HO7RN F 24 Room Air Conditioner 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 Over 5mm 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 Breaker 5k 14k 18k 24k 28k 30k 32k 36k 38k A 15 20 30 30 40 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 b
6. Service Manual 73 Schematic Diagram Models AS W096E1G0 AS W126E1G0 TOP VIEW Q PCB 6870A90055Q_1 050106 CN PUMP CN WAY i ssy 6871A10135 P eje 8 e e e e8 9 ser ara ARA 5 a Y 3 3 z Mu 8 EE o 50 5 5 olo E loo 56 59 cos SE ES s PSC Module sees sj ecco 01 o C cune Um E aos m 48 1 43 NE s SE S 5000 obo miez ommo M o e EA eure RoSZ BLY gt 8 CORI ew paz Sel azo T REUS we nov i TEST POINT n m Hr o i m B B sen eo RZ i Biz wo 8 cw 2 m md E En HB DE 5 290 8 8 5 3 D Cic Os coso ited dy O 22 t oe sos lz d HB o 38 i 5 cuo 2 x 8 SPM3 6002EC2005 LI ee MODULE
7. 10 Type Code of Model Meaning 1 Producing Center A Z Refrigerant Product Type Cooling Heating Inverter 4 5 Capacity Electric Range gt L Chang won R22 A Chang won R410A C Chang won R407C Imc C H X Z China Turkey R22 Turkey R410A Thailand N India Z Brazil D Indonesia M Mexico V Vietnam S Out Sourcing Split Type Air Conditioner Cooling only Heat pump C O E Heater H P E Heater V AC Inverter C O N AC Inverter H P Q DC Inverter C O W DC Inverter H P Cooling Heating Capacity E x 09 115V 60Hz 220V 60Hz 208 230V 60Hz 200 220V 50Hz 220 240V 50Hz 110V 50 60Hz gt 9 000 Btu h 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 380 415V 50Hz 380 415V 60Hz Name of Chassis of Unit Ex 4 gt S4 Chassis Chassis Look Look Color Artcool Model Basic Basic 4Way Plasma Filter Plasma Filter 4 Way Tele LCD Tele LCD Nano plasma 4Way Nano Plasma F A changeove A c Nano Plasma F A changeove A c Tele LED 4way Internet Plasma F 4Way Oxy generator Nano Plasma F A changeove A c Nano Plasma F A changeove A clean 4way Nano Plasma F A changeove A clean PTC Nano Plasma F A changeove Autoclean 4way PTC Nano Plasma F A changeove A clean 4way Low A PTC Ne
8. O PcBASM 6871A20675 FUSE MEALS PCB 6870A90270A Cot oe e 3 Jr m A s B201E RO4H 88888 POWER MODULE BOTTOM VIEW da dal B Hit 7 a pin 9 oS oso 00000 cox Service Manual 71 Schematic Diagram Outdoor Unit Models AS W0964DH0 AS W1264DH0 AS W0964GH0 AS W1264GH0 AS W1224DH0 AS W1424DH0 TOP VIEW Z O PCB 6870A90055M_1 040221 Assy 6871A10128 2004 02 21 om eje 8 8 8 E Lo CRAY GN PUMP RY HIPUMP RY 4WAY ib O a Lo GN COIL2 rele ojjojjo 5 J a cos PIPE CN TH1 CN TH2 _ s 9888888 sss ss 8288888 Ow _ L zn emo as vow gt qu reg cota dr NL m MA g 7 um o 5 wis ve 5 CHEN 5 raz No BE Bibi D ew 8 8 mer
9. pcb is right Check D_PIPE TH Check soldering state of Measure resistance of TH R07H R08H C04H about 200 at 25 C Connect to CN D_ PIPE in outdoor pcb assembly 66 Room Air Conditioner Schematic Diagram Schematic Diagram Indoor Unit Models AS W0964DH0 AS W0964GH0 o CN MOTOR SSR WCN NOISE TI ZNRO1F iCN TH2 BL SH CAPA CN IN MAIN PCB BL CN OUT ASM L BR WH CN TH1 FUSE K 4 3 AC250V T2A 7 o O S RY PWR TERMINAL CN COM BLOCK CN DISP2 CN DISP1 ONUR CN U D BL CN 12V a J 99 E TO OUTDOOR UNIT P No 3854A20427F Models AS W1264DH0 AS W1865DH0 AS W1264GH0 AS W1224DH0 AS W1424DH0 AS W1825DH0 AS W096E1G0 AS W126E1G0 IRING DIAG WCN NOISE FAN MOTOR BL YL MAIN PCB ASM CN TH2 CN MOTOR1 CN TH1 e c CN IN N N WH FUSE AC250V T2A Q fre O CN DISP2
10. website http www lgservice com LG Gi Room Atr Conditioner SERVICE MANUAL MODELS AS W0964DH0 GHO AS W1264DH0 GHO AS W1865DH0 AS W1224DH0 AS W1424DH0 AS W1825DH0 AS W096E1G0 AS W126E1G0 CAUTION 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 eee aha alla iii 3 Saf ty tico eA EH PAD ale 5 Dimensions rr eine pelle aaa kunsa ile tirati 10 Ibistallallort ER au Sa 14 Connecting the cable between indoor unit and outdoor 24 Checking the drainage and forming the pipings n snn 26 acidi Ciel 27 Iram ao 29 F NCHONS sali 30 Operation P 33 DisassemblVys ele 44 Troubleshooting Guide sse nennen nete 47 eee E REP Hm n 67 Product Specifications 76 Exploded VieW uuu sn elia b OI uo S oig Sii 79 Replacement Parts 83 2 Room Air Conditioner LG Model Name LG Model 1 2 4 5 6 8 9
11. 3 510 2 260 3 020 9 000 12 000 Max 3 700 4 040 3 180 3 470 12 620 13 800 Heating Capacity MIN 900 900 770 770 3 070 3 070 Type 3 600 4 570 3 100 3 930 12 300 15 600 Max 5 000 5 480 4 300 4 710 17 060 18 720 IN 20 C Out 10 C Heater ON IN 20 C Out 10 C Heater OFF Power Input Cooling 650 1 090 Heating 870 1 260 Heating 10 C Heater ON Heating 10 C Heater OFF Running Current Cooling 4 8 Heating 5 7 Heating 10 C Heater ON Heating 10 C Heater OFF Starting Current Cooling 4 8 Heating 5 7 EER Cooling kcal hW 3 48 2 77 Btu h W 13 85 11 01 Heating kcal hW 3 56 3 12 Btu h W 14 14 12 38 COP Cooling WW 4 05 3 23 Heating WW 4 14 3 63 Power Supply 1 220 240 50 1 220 240 50 Power Factor 90 97 97 Air Circulation Indoor Max m min CFM 8 5 300 9 5 335 Outdoor Max m min CFM 29 1 024 29 1 024 Moisture Removal I h pts h 0 6 1 28 1 3 2 77 Noise Level Sound Pressure 1m Indoor High dB A 3 33 39 Med 29 29 Low 25 25 Outdoor Max 48 48 Refrigerant R410A Charge
12. Between U V W and Body Assembling state of screw between INV IC amp E normal over10M Q Heat sink DC 15V output of Power module 18K Model Check Short of SPM2 pins GND U V W pin Direction of D01Z D03Z C08Z 10Z 12Z 16Z 9 Assembling state of RO1P R21P amp ICO1P Assembling state of screw between INV IC Heat sink DC 15V output of Power module Service Manual 63 Troubleshooting Guide Description Cause of error Supplied power is not normal Over current Error Indoor outdoor fan is locked CT2 Too much refrigerant Defect in current sensing circuit in outdoor pcb assembly Check flow YES YES Supplied voltage to Outdoor pcb is about AC 220 240V Does indoor outdoor fan work normally Refrigerant pressure is right Check indoor outdoor fan and Check refrigerant pressure Cheer Powel source adjust and adjust YES Current sensing circuit is right Check current sensing circuit check CT is damaged in outdoor pcb output wire is disconnected to pin or not BDO1N is inserted in right position refer marking on pcb and component Spec of R01N 1kQ RO2N 1 65kQ is correct Direction of diode D01N DO2N is right 64 Room Air Conditioner Troubleshooting Guide Description Cause of error Indoor fan is locked Indoor fan is locked or separated Fan connector is not connected to indoor pcb assembly BLDC fan model
13. 1 000 34 0 1 000 34 0 Power Cord 16 3 1 0 16 3 1 0 Connecting Cable AWG P mm 16 4 1 0 16 4 1 0 Connecting Tube 6 Socket Flare Liquid Side mm in 6 35 1 4 6 35 1 4 Gas Side mm in 9 52 3 8 9 52 3 8 Length std m in 7 5 295 7 5 295 Drain Hose O D 1 D mm in 21 5 16 0 0 85 0 63 21 5 16 0 0 85 0 63 Dimension W H D Indoor mm 895 282 165 895 282 165 inch 35 2 11 1 6 5 35 2 11 1 6 5 Outdoor mm 770 540 245 770 540 245 inch 30 3 21 3 9 6 30 3 21 3 9 6 Net Weight Indoor kg lbs 10 22 10 22 Outdoor kg lbs 38 83 8 38 83 8 Service Manual 77 Product Specifications Table 3 Buyer Models Unit AS W1224DH0 AS W1424DH0 AS W1825DH0 Min kcal h 980 1 140 989 1 150 1 548 1 800 3 890 6 142 Cooling Capacity Type 3 024 3 517 3 528 4 102 4 536 5 274 12 000 14 000 18 000 Max 3 474 4 040 3 732 4 340 4 987 5 800 13 800 14 810 19 790 Min 757 880 765 892 1 204 1 400 3 003 3039 4 777 Heating Capacity Type 3 478 4 043 3 780 4 396 5 242 6 096 13 800 15 000 20 800 Max 4 007 4 660 4 119 4 790 5 761 6 700 15 900 16 344 22 861 Power Input Cooli 1 100 1 320
14. 13 0 459 Outdoor Max m min CFM 26 918 26 918 42 1483 Moisture Removal I h pts h 1 4 2 94 1 5 3 2 Noise Level Indoor High dB A t3 38 40 42 Sound Med 35 37 Pressure 1m Low 29 31 Outdoor Max 48 49 Refrigerant R410A Charge 810 26 5 845 28 5 1 200 40 8 Power Cord 16 3 1 0 16 3 1 0 12 3 2 5 Connecting AWG P mm 16 4 1 0 16 4 1 0 12 4 2 5 Connecting Tube Socket Flare Liquid Side mm in 6 35 1 4 6 35 1 4 6 35 1 4 Gas Side mm in 9 52 3 8 12 7 1 2 12 7 1 2 Length std m in 7 5 295 7 5 295 7 5 295 Drain Hose O D LD mm in 21 5 16 0 0 85 0 63 21 5 16 0 0 85 0 63 21 5 16 0 85 0 63 Dimension W H D Indoor mm 758 260 160 758 260 160 758 260 160 inch 29 8 10 2 6 3 29 8 10 2 6 3 29 8 10 2 6 3 Outdoor mm 770 540 245 770 540 245 770 540 245 inch 30 3 21 3 9 6 30 3 21 3 9 6 30 3 21 3 9 6 Net Weight Indoor kg lbs 9 20 9 20 13 5 30 76 Room Air Conditioner Outdoor kg lbs 38 83 8 38 83 8 60 132 3 Table 2 Model Name Unit AS W096E1G0 Product Specifications AS W126E1G0 Cooling Capacity MIN 900 900 770 770 3 070 3 070 Type 2 630
15. AS W0964DHO GHO 95 105 2 AS W1264DHO GHO 95 105 3 AS W1865DH0 98 108 4 AS W1224DHO 95 105 5 AS W1424DHO 95 105 6 AS W1825DHO 98 108 7 AS W096E1G0 100 110 8 AS W126E1G0 100 110 13 C COMP Freq Fh min 40 Room Air Conditioner Operation 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 Defrosting control is available 50 minutes later since heating cycle started and the pipe temperature of out door unit reaches below 6 C Minimum Time Main Deice time of Heating Operating Setting Freq of Setting Freq Freq Comp Starting step EEV Setting Open step ON 4 Way Setting Setting Outdoor Speed Speed FAN mE SEIT Setting opee Speed Indoor p FAN Hot Start Pre Heat LED Deice STEP Service Manual 41 Operation Auto Cleaning B Function used to perform the Self Cleaning to prevent the Unit from Fungus and Bad Odors Used after the Shut Down of Cooling Operation to Clean the Evaporator and keep it as fresh for the Next operation During Self Cleaning the Outdoor Unit is Switched off The function is easy to be operated as It is accessed through the Remote Controller 1 Heat pump Model ON OFF Cooling CYCLE Fan Heating Fan E 13 Min 60 Sec 120 Se
16. Sensing circuit of indoor is right Indoor TH is right 7 pcb is right 2 Check Indoor TH Measure resistance of TH air about 10k Q at 25 C pipe about 5k at 25 C Check soldering state of R01H RO4H C01H C02H Cause of error open Check flow Outdoor TH is connected to outdoor pcb assembly Connect to CN TH1 in outdoor pcb assembly 60 Room Air Conditioner Outdoor TH is short or YES Outdoor TH sensor is short or open Outdoor TH sensor is not connected to the outdoor pcb assembly Damage or defect on the sensing circuit of outdoor pcb assembly R03H R06H C02H C03H YES Sensing circuit of outdoor is riqht Outdoor TH is right 4 pcb is right 2 Check outdoor TH Measure resistance of TH air about 10k O at 25 C pipe about 5k Q at 25 C Check soldering state of R03H R06H C02H C03H Troubleshooting Guide e 9K 12K Description Cause of error Heat sink TH is damaged short or open Heat sink Temp is over 95 C Heat sink Temp is over 95 C Heat sink TH is open or short Damage or defect on the sensing circuit of outdoor pcb assembly R01H R02H C01H Check flow YES YES Heat sink TH is connected to Heat sink TH in INV IC is Sensing circuit of outdoor outdoor PCB assembly Right pcb is right Check heat sink TH Measure resistance of TH about 10k at 25 C Check solde
17. VALVE SERVICE 5220A20001Q 5220A20006F 5220A20006F 5220A20006F 2H02479F 668711 PWB PCB ASSEMBLY MAIN 6871A10128P 6871A10128Q 6871A10128U 6871A10128V 3871A20349G WOCZZ CAPACITOR DRAWING OCZZA90002M OCZZA90002N 0CZZA90002N 0CZZA90002N OCZZA90002N NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 87 Replacement Parts List Parts List Outdoor LOCATOR DESCRIPTION REMARKS No AS W096E1G0 AS W126E1G0 552116 Tube Assembly Reverse 5211A24134A 5211A24134A R 552202 Valve Reverse 5220AR3228D 5220AR3228D R 263230 2 Thermistor Assembly 6323A20001B 6323A20001B R 649950 Case Assembly Control Outdoor 4995A20520L 4995A20520T R 268714 PCB Assembly Main 6871A10135L 6871A10135K R 263230 3 Thermistor NTC 6323A20003G 6323A20003G R 561410 Solenoid 6141A20010S 6141A20010S R 55211G Tube Assembly Expansion 5211A22520A 5211A22520A R 552200 Valve Expansion Body 5220A90001F 5220A90001F R 561411 Solenoid 6141A30003B 6141A30003B R 554031 Condenser Assembly Bending 5403A20221B 5403A20221B R 550140 Damper Compressor 4H00982E 4H00982E R 554160 Compressor 5416A90029C 5416A90029C R 437210 Panel Assembly Front Outdoor 3721A20027S 3721A20027S R 435301 Grille Discharge 3530A20006G 3530A20006
18. 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 If the indoor pipe temperaure is below 0 C in 7 min after the compressor operates without pause while in cooling cycle operation mode gt compressor outdoor fan are turned off e When indoor pipe temp is 7 C or higher after 2 min pause of compressor gt compressor outdoor fan is turned on according to the condition of the room temperature Indoor pipe Comp free temp 6 C 7 3 C Comp Step 4 Comp Step 2 Service Manual 33 Operation Operating frequency of compressor depend on the difference of the temperature intake air Temp Compressor off Temp Compressor off temp setting temp 0 5 C on temp setting temp 0 5 G If compressor operates at some operating frequency the operating frequency of compressor cannot be changed within 30 seconds Condition of compressor turned off When intake air temperature stay at the temperature between setting temp 0 5 C and setting
19. e w LP E od o oo se d spssssgc c m DI 2 s a 8 o1 o Guo 8 888888 O Bi O ono NDA LS L Wwe 9 COSH CN LEV BR BK WCN NOISE3 BUWH BOTTOM VIEW O HEATSINK O oe 8 ee b sua Re we _ m dala oo 99 o 8 599 5 omo omo se 5 oa 74 Room Air Conditioner Schematic Diagram DISPLAY ASSEMBLY 6871A20574A 1 SW_TACT ROSG 4 R13L LED4 ec w OTTO E RO2G RO4G DISP PWB P No 6870A90240A PCB ASSY 6871420574 A 6871A20624A LED4 LED3 oe s e PWB P No 6870A90240B ASSY 6871420624 C ROSG RO4G RECEIVER LED1 LED2 1 Service Manual 75 Product Specifications I Product Specifications Table 1 Model Name Unit AS W0964DH0 AS W0964GH0 AS W1264DH0 AS W1264GH0 AS W1865DH0 MIN 1 758 1 143 2 755 1 512 983 2 369 6 000
20. 1 600 Heati 1 120 1 300 1 685 Running Current Cooli 5 0 5 9 7 0 Heati 5 1 5 8 8 0 Starting Current Cooli 5 0 6 7 5 Heati 5 5 7 1 8 5 Cooli kcal hW 2 75 2 67 2 84 Btu h W 10 91 10 61 11 25 Heatin kcal hW 3 11 2 91 3 11 Btu h W 12 32 11 54 12 34 COP Cooling WW 3 20 3011 3 30 Heating WW 3 61 3 38 3 62 Power Supply 1 220 60 1 220 60 1 220 60 Power Factor 97 97 97 Air Circulation Indoor Max Outdoor Max m min CFM 8 7 307 8 7 307 13 0 459 m min CFM 26 918 26 918 42 1483 Moisture Removal uP h pts h 1 5 3 2 1 5 3 2 2 12 Noise Level Indoor High dB A 3 40 40 42 Sound Med dB A 3 37 37 Pressure 1m Low 29 29 36 Outdoor A B A 3 3 t 49 49 55 Refrigerant R410A Charge 845 28 5 915 1200 40 8 Power Cord AWG P mm 16 3 1 0 16 3 1 0 12 3 2 5 Connecting Cable AWG P mm 16 4 1 0 16 4 1 0 12 4 2 5 Connecting Tube Liquid Side mm in 6 35 1 4 6 35 1 4 6 35 1 4 Q Socket Flare Gas Side mm in 12 7 1 2 12 7 1 2 12 7 1 2 Length std m in 7 5 295 7 5 295 7 5 295 Drain Hose O D D mm in 21 5 16 0 0 85 0 63 2
21. 9 4 1 3 zooak 9 7 s x AA EE Meu r n 9 Qo Qo ol 5 SPM3 6002EC2005C SPM3 6002EC2005D 002D sanita 838 888888 8888 O O di P E i x 4 dai Pooh wow D 1 5 com eo oo E TED ED BOTTOM VIEW Q e 9 0000 14141 0000 e jo sese 0000 oo tano e E o 9 9 8 0 0 o a omo oso 5 72 Room Air Conditioner Models AS W1865DH0 AS W1 TOP VIEW 825DHO Schematic Diagram O a 1 8888888 oo lt G BT
22. Outdoor unit Co Si 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 sary to apply a evacuatin Discharge the refrigerant gradually if it is dis charged too suddenly the refrigeration oil will also be discharged 52 Hoom Air Conditioner Evacuation All amount of refrigerant leaked Troubleshooting Guide N ET 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 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 vacu
23. 01S in 3 GN YL 3 GN YL T Block in indoor unit Outdoor pcb assembly 4 RD 4 RD YES YES Communication circuit of indoor Ground connection is installed amp outdoor pcb Is right power outlet or outdoor chassis Earth port Check IC01K IC02K D01K D03K Install ground connection from outdoor ZD01K ZD08K R01K R10K unit In case power outlet has no earth C01K C04K port 62 Room Air Conditioner Troubleshooting Guide Description Cause of error Supplied power is not normal Comp Connector CN U V W is disconnected or inserted to wrong position Compressor is damaged coil short gt replace compressor Too much Refrigerant Defect in outdoor pcb assembly gt replace pcb assembly DC Peak Error Check flow YES YES Supplied voltage to Is connector CN U V W Outdoor pcb is about connected to compressor and Refrigerant pressure is right AC 220 240V inserted to pcb in right position 2 Check CN U V W connector RD V BL YL Check refrigerant pressure and adjust Check power source YES YES Inverter components in outdoor pcb assembly are iqht Is the compressor right right Check resistance 9 K 12K Model Between U V V W U W port Check gt Short Open circuit Short of SPM3 pins GND P U V W pin Comp motor coil error Direction of D01Z D03Z C08Z 10Z 12Z 16Z normal 1 2 Q Assembling state of RO1P R21P amp ICO1P
24. Outdoor unit Service port nut Be sure using a torque wrench to tighten the service port nut after using the service port so that it prevents the gas leakage from the refrigeration cycle A CAUTION Do not leak the gas in the air during Air purging Procedure 1 Recheck the piping connections 2 Open the valve stem of the 2 way valve coun terclockwise approximately 90 wait 10 sec onds and then set it to closed position Be sure to use a hexagonal wrench to operate the valve stem 3 Check for gas leakage Check the flare connections for gas leakage 4 Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 6 Set the 3 way valve to the back seat 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way valve s stem nuts and from the service port nut CAUTION If gas leakage are discovered in step 3 above take the following mesures If the gas leaks stop when the piping connections are tightened further continue working from step 4 If the gas leaks do no
25. from the air conditioner do not disturb neighbors 14 Room Air Conditioner Installation Capacity Pipe Size Standard Max Max Additional Refrigerant Btu h GAS LIQUID Length m Elevation B m Length A m g m 7k 8k 9k 3 8 1 4 4 or 7 5 7 15 20 3 8 1 4 4 or 7 5 7 15 20 11k 12k 14k 1 2 1 4 4 or 7 5 7 15 20 1 2 1 4 4 or 7 5 15 30 20 18k 24k 26k 5 8 1 4 4 or 7 5 15 30 20 5 8 3 8 4 or 7 5 15 30 30 Indoor unit Outdoor unit Outdoor unit Oil trap ET Outdoor unit Indoor unit amp indoor unit If the piping length is more 10 Meters and the outdoor 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 7 meters Service Manual 15 Installation Fixing Installati 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 Chassis 1 4 the centerline using a level FIORE 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 typically Drilling the hole through the wall for piping connection
26. nut by hand 2 Tighten the flare nut with a 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 3 Mount the clamp on the boss with a type B screw optional 4 When extending the drain hose at the indoor unit install the drain pipe Wrap the insulation material around the connecting portion 1 Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there may be no gap Wrap the area which accommodates the rear piping housing section with vinyl tape Bundle the piping and drain hose together by wrap ping them with vinyl tape for enough to cover where they fit into the rear piping housing section Installation Connecting cable t Drain hose Indoor unit tubing Flare nut Pipes Drain hose Adhesive Vinyl tape narrow Plastic bands ingutation material 208 cT Vinyl tape wide Wrap with vinyl tape Connecting cable Pipe Vinyl tape narrow Wrap with vinyl tape Pipe Vinyl tape wide Drain hose Service Manual 19 Installation For left rear piping 1 Route the indoor tubing and the drain hose to the required pipin
27. only Defective in DC fan driving circuit Check flow YES YES Indoor fan is rotating 1 Indoor fan is rotating 2 DC fan driving circuit is right 2 Check indoor unit Check DC Fan Driving circuit Check soldering state of Top remove obstacles in CN Motor1 amp assemblin Soldering state amp Direction indoor unit 9 RO1F RO9F C01F C03F fD fan assembled correctly state or Fan connecter IC01F IC03F Q01F Q02F ZDO1F Description Cause of error Outdoor fan is locked Outdoor fan is locked by an obstacle ex branch of tree bar etc Fan connector is not connected to outdoor pcb assembly BLDC fan model only Defective in DC fan driving circuit Check flow YES YES Outdoor fan is rotating 1 Outdoor fan is rotating 2 DG fan driving circuit is right Check DC Fan driving circuit Soldering state amp Direction R01F R05F CO1F CO3F Q01F Q04F ZD01F Check outdoor unit Check connector is not remove obstacles in connected to outdoor pcb outdoor unit assembly CN FAN2 Service Manual 65 Troubleshooting Guide Description Cause of error _pj D pipe TH is short or open SOIT OF D pipe TH is not connected to the outdoor pcb assembly open Damage or defect on the sensing circuit of outdoor pcb assembly Check flow YES YES D_PIPE TH is connected to ae Sensing circuit of outdoor D_PIPETH ht Outdoor pcb assembly 7 is
28. 0 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz CHASSIS Look Division 9 380 415V 60Hz S4 S5 SD D Panel Type Deluxe i E i i G Grille Type 7 Chassis A Z of Unit SE i Panel Type Deluxe assis S6 K Fighting Look 8 Look Look sa L LG1 Color Artcool Model SR G LG2 SEMI PANEL ST M OEM1 N OEM2 D Panel Type Deluxe P LG3 9 Function A Z 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 A clean 4way NBF F A changeove A clean PTC F A changeove Autoclean 4way PTC NBF F A changeove A clean 4way Low A PTC Nano Plasma ION 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 lt AMO ZZ 1 mo s gt 10 Serial No 0 9 LG Model Development Serial No ARTCOOL COLOR R Mirror W White B Blue D Wood M Metal C Cherry 4 Room Air Conditioner Dimensions E Dimensions A This symbol alerts you to the risk of electric shock A This symbol alerts you to hazards that could cause har
29. 1 5 16 0 85 0 63 21 5 16 0 85 0 63 Dimension Indoor W H D mm 758 260 160 758 260 160 1090 300 178 inch 29 8 10 2 6 3 29 8 10 2 6 3 42 9 11 8 7 0 Outdoor mm 770 540 245 770 540 245 870 655 320 inch 78 Hoom Air Conditioner 30 3 21 3 9 6 30 3 21 3 9 6 34 3 25 8 12 6 Exploded View Exploded View Indoor Unit 1353165 Option Parts aso Plasma Models Service Manual 79 Exploded View Outdoor Unit Models AS W0964DH0 AS W1264DH0AS W0964GH0 AS W1264GH0 AS W1224DH0 AS W1424DH0 UL Chassis Part for H P Models 80 Room Air Conditioner Exploded View Models AS W096E1G0 AS W126E1G0 UL Chassis
30. 1410 COIL ASSEMBLY REVERSING 6141A20010S 6141A20010S 6141A20010H 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A21006H 4995A21006J 4995A20346F 668711 PWB PCB ASSEMBLY MAIN OUTDOOR 6871A10128P 6871A10128Q 6871A20349F 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 5220A20006A 552203 2 VALVE SERVICE 5220A20001Q 5220A20006F 2H02479F W0CZZ CAPACITOR DRAWING OCZZA90002N 3H00611R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 86 Room Air Conditioner Parts List Outdoor Replacement Parts List LOCATION PART No No AS W0964GH0 AS W1264GHO AS W1224DHO AS W1424DHO AS W1825DH0 263230 1 THERMISTOR ASSEMBLY 6323A20001C 6323A20001C 6323A20001C 6323A20001C 6323A20001B 263230 2 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G 6323A20003G 6323A20003G 6323A20003C 430410 BASE ASSEMBLY OUTDOOR 3041A20066A 3041A20066A 3041A20066A 3041A20066A 3041A20022Q 435301 GRILLE DISCHARGE 35304200066 35304200066 3530A20006G 35304200066 35304200078 435511 COVER ASSEMBLY CONTROL OUTDOOR 3551A30115G 3551A30115G 3551A30115G 3551A30115G 3551A30102A 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A20027Q 3721A20027Q 3721A20027Q 3721A20027Q 3721A20005H 437212 PANEL ASSEMBLY REAR OUTDOOR 3721A20026M 37
31. 21A20026M 3721A20026M 3721A20026M 3720AP0003D 447910 BARRIER ASSEMBLY OUTDOOR 4791A30002G 4791A30002G 4791A30002G 4791A30002G 2H02110G 546810 MOTOR ASSEMBLY OUTDOOR 4681A20068G 4681A20122A 4681A20122A 4681A20122A 4681A20028L 550140 ISOLATOR COMP 4984AR4387A 4H00982E 4H00982E 4H00982E 4H00982E 552102 1 TUBE CAPILLARY BEND 5210A21447M 5210A21447E 5210A21447E 5210A21447E 5210A31380D 552102 2 TUBE CAPILLARY BEND 5210A33068B 5210A33068A 5210A33068A 5210A33068A 5210A31380E 552111 TUBE ASSEMBLY CAPILLARY 5211A21393C 5211A21393B 5211A21393B 5211A21393E 552116 TUBE ASSEMBLY REVERSING 5211A10466B 5211A10466C 5211A10466C 5211A10466D 5211A21140B 5522001 VALVE CHECK 3H01552F 3H01552F 3H01552F 3H01552F 5220A30004A 552202 VALVE REVERSING 5220AR3228D 5220AR3228D 5220AR3228D 5220AR3228D 5220AR3228E 554031 CONDENSER ASSEMBLY BENT 5403A20019V 5403A20019V 5403A20019V 5403A20019V 5403A21012B 554160 COMPRESSOR 5416A90045A 5416A90029A 5416A90029A 5416A90029A 5416A90024A 559010 FAN ASSEMBLY PROPELLER 5901A10033A 5901A10033A 5901A10033A 5901 10033 1 00195 561410 COIL ASSEMBLY REVERSING VALVE 6141 200105 61414200105 6141A20010S 6141A20010S 6141A20010H 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A21006H 4995A21006 4995A21006M 4995A21006N 4995A20346H 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 5220A20005B 5220A20005B 5220A20006A 552203 2
32. 251A20011D 5251A20011D 5251A20011D NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 83 Replacement Parts List Parts List Indoor LOCATION PART No No QE RAMS AS W0964GHO AS W1264GH0 AS W1224DH0 AS W1424DH0 AS W1825DH0 TEE 131410 CHASSIS ASSEMBLY 3141A20019C 3141A20019C 3141A20019C 3141A20019E 3141420020B 135311 GRILLE ASSEMBLY DISCHARGE INDOCR 3531A10307A 3531A10307A 3531410307J 3531A10307P 3531A20252H 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A14003C 3531A14003D 3531 14002 3531A14002R 35314202538 135314 GRILLE ASSEMBLY INLET 3531A10339B 3531A10339B 3531A10312D 3531A10312D 3531 A20254E 135516 COVER ASSEMBLY MOTOR 3551A20156B 3551A20156B 3551A20156B 3551A20156B 3551A20154A 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A 4681A20055A 4681A20055A 152302 FILTER IMECH A C 5230A20051A 5230A20051A 5230 20051 5230A20051A 159901 VANE HORIZONTAL 5990A20048A 5990A20048A 5990A20048A 5990A20048A 5990A20049A 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20495B 4995A20495A 4995A20495E 4995A20495F 4995A20495D 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323A20004A 6323A20004A 264110 POWER C
33. 3 100 9 400 Cooling Capacity Type 2 637 3 516 5 274 2 268 3 024 4 536 9 000 12 000 18 000 Max 3 033 4 043 6 096 2 608 3 478 5 242 10 350 13 800 20 800 MIN 1 465 879 1 406 1 260 756 1 210 5 000 3 000 4 800 Heating Capacity Type 3 296 4 043 6 065 2 835 3 478 5 216 11 250 13 800 20 700 Max 3 810 4 659 6 651 3 276 4 007 5 720 13 000 15 900 22 700 IN 20 C Out 10 C Heater ON IN 20 C Out 10 C Heater OFF Power Input Cooling 690 970 1 640 Heating 910 1 120 1 680 Heating 10 C Heater ON Heating 10 C Heater OFF Running Current Cooling 3 4 4 2 Heating 4 2 5 1 Heating 10 C Heater ON Heating 10 C Heater OFF Starting Current Cooling 3 4 4 2 7 5 Heating 4 2 5 1 8 5 EER Cooling kcal hW 3 29 3 29 2 8 Btu h W 13 04 13 04 10 98 Heating kcal hW 3 12 3 12 3 11 Btu h W 10 36 12 32 12 32 COP Cooling WW 3 82 3 82 3 22 Heating WW 3 62 3 61 3 61 Power Supply 1 220 240 50 1 220 240 50 1 220 240 50 Power Factor QN Hz 97 97 97 Air Circulation Indoor Max m min CFM 7 2 254 8 7 307
34. 320 T m 370 T 340 L3 mm 2 F 630 T zu 25 n a 546 i n 162 a m 162 54 so V 74 5 L11 mm Service Manual 13 Installation E Installation Indoor unit 1 Do not have any heat or steam near the unit 2 Select a place where there are no obstacles in front of the unit 3 Make sure that condensation drainage can be conve niently routed away 4 Do not install near a doorway 5 Ensure that the interval between a wall and the left or right of the unit is more than 50cm The unit should be installed as high as possible on the wall allowing a minimum of 10cm from ceiling 6 Use a stud finder to locate studs to prevent unneces sary damage to the wall A CAUTION Install the indoor unit on the wall where the height from the floor is more than 2 3 meters Outdoor unit 1 If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radia tion from the condenser is not restricted 2 Ensure that the space around the back and sides is than 60cm than 10 than 10 front of the unit should have more than 70cm of space 3 Do not place animals and plants in the path of the warm air More than 10cm 4 Take the weight of the air conditioner into account and select a place where noise and vibration are min imum More than 70cm 5 Select a place where the warm air and noise
35. 4DHO AS W1264DH0 AS W1865DH0 131410 CHASSIS ASSEMBLY 3141A20019C 3141A20019C 3141A20020B 135311 GRILLE ASSEMBLY DISCHARGE 3531A10307A 3531A10307A 3531A20252A 135312 GRILLE ASSEMBLY FRONT 3531A14002D 3531A14002B 3531A20253K 135516 COVER ASSEMBLY MOTOR 3551A20156A 3551A20156A 3551A20154A 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681 20055 4681 20055 152302 FILTER MECH A C 5230A20051A 5230A20051A 5230A20052B 159901 VANEHORIZONTAL 5990 20048 5990 20048 5990 20049 249951 CONTROL 4995A20495B 4995A20495A 4995A20495C 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 264110 POWER CORD ASSEMBLY 6411A20013E 6411A20013E 6411A20014Z 266090 H V ASSEMBLY 6609A10003Z 6609A10003Z 267110 REMOTE CONTROLLER 6711A20077Y 6711A20077Y 6711A90032Y 268712 PWB PCB ASSEMBLY DISPLAY 6871A20574A 6871A20574A 6871A20624A 268714 PWB PCB ASSEMBLY 6871A20675A 6871A20156A 6871A20156B 342800 BEARING 4280A20004B 4280A20004B 4280A20004A 346810 MOTOR ASSEMBLY INDOOR 4681A20151B 4681A20091J 4681A20091J 354210 EVAPORATOR ASSEMBLY FIRST 5421420218 5421420218A 5421 20220 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901AR2441E 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301A20011A 3301A20002B 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211A21363B 5211A21378C W0CZZ CAPACITOR DRAWING 3H01487K 152313 FILTER ASSEMBLY DEODORIZER 5231A20040A 5231A20040A 5231A20040A 152510 HOSE ASSEMBLY DRAIN 5
36. 86 AS W1865DHO 16 38 47 65 79 87 96 AS W1224DHO 20 35 53 63 70 79 86 AS W1424DHO 20 35 53 63 77 79 86 AS W1825DH0 16 38 47 62 79 87 90 AS W096E1G0 35 40 48 56 65 90 94 AS W126E1G0 35 40 48 56 80 90 94 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 super high speed for 30 min at cooling mode operation In the Jet Cool mode the room temperature is controlled to the setting temperature 18 C When the sleep timer mode input while the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vane is reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Service Manual 35 Operation Jet heat i While in cooling mode or Fuzzy operation the Jet Heat key cannot be input When it is input while in the Heating mode operation dehumidification the Jet Heat mode is operated In the Jet Heat mode the indoor fan is operated super high speed for 60 min at Heating mode operation In the Jet Heat mode the room temperature is controlled to the setting temperature 30 C When the sleep timer mode input while the Jet Heat mode operation the Jet Heat mode has the priority When the Jet Heat key
37. CN DISP1 CN UD BL TERMINAL BLOCK D l m EAN TO OUTDOOR UNIT P No 3854A20427E Service Manual 67 Schematic Diagram Outdoor Unit Models AS W0964DH0 AS W0964GH0 WIRING DIAGRAM REVERSING HEATSINK OUTDOOR VAL COMP TH REACTOR 000 BK BK OO CH CN CN COIL1 CN COIL2 CN TH2 CN TH1 4WAY WCN NOISE2 a aa TERMINAL amp 15u 922 A 370VAC BLOCK AC 250V 15 BR oo CN U R B Er S CN V S CN W T LINN HOOONI OL v WCN NOISE3 4 WCN NOISE1 Outdoor PWB ASSY 3854A20310P Models AS W1264DH0 AS W1264GH0 AS W1224DHO0 AS W1424DHO Reve RSING HEAT SINK OUTDOOR PIPE TH COMP TH REACTOR 8 Q00 OUTDOOR WIRING DIAGRAM BK BK O OHOO CN FAN2 cN coiL CN COIL2 cN rH2 CN TH1 CN D PIPE WCN NOISE2 RY 4WAY
38. ET Ls a coca de a tate dee 2 5 593 2 da cur vet p E 8 mum ni au 5 Pols jog TE x L i o PWB P NO 6870A90148A 030509 ka M b ue PWB ASSY PINO 6871420349 e e e cea da 2 ROMS mE o w o i I Ww nine 860888 eese 8 88 88 BOTTOM VIEW z wow 9 aa 2 o 738 222 o o 5 i 5 1 3 2 iff e e 255 n Mir i o o wait 9 o o eo o 5 o ss o 8 8 0000 oo co 5535 BOG BE us 045 C03S 25 0018 cur m mee w E lt 515 o w o i i JH 4 m 4 MR MOMO 8 8 18 O oo owo oo 000p oeo oo ow 2 m MX i sa 33550 35500 H oo Em 9 ES o ogo i 55 ss 8T ms o m H i se rei oe DI WO 9 00 l odo lee oo se DET s gt BE SE e gg Wm 9 oe ls si SURGE o w 9 omo ofo o w o _ sb e o w o i ogm 5
39. Fault Error 3 sec Ttime 4 times 4 times Comp Phase Current Error e 180 Driver Comp Control Model Only 56 Hoom Air Conditioner Troubleshooting Guide 1 Error indicator of air conditioner 1 Indoor Operating LED Outdoor LED01M Red on the outdoor PCB 2 2 more errors occur at same time Air conditioner Off condition Display the error code of product off cause Air conditioner On condition Display the prior Error Code 2 Cancellation of Error indicator 1 Error Code 1 2 3 4 10 Error indicator canceled when cause of error recovered 2 Error Code 5 8 9 Keep displaying Error indicator by restarting air conditioner although cause of error recovered 3 Error Code 6 7 Error indicator canceled when power reset Power Cord Off amp On E Precaution in Service or Check Even after stopping the operation of product it takes some time to discharge the remaining electricity of the electrolytic capacitor that was charged Before starting a checking or repairing job pull out the plug out of the outlet and make sure that the lamp on the control board outdoor unit is off E The Diagnosis Procedure Check the supplied voltage to product AC 220V 230V 30V L Check the connecting cable between Indoor and Outdoor d Check the blinking number of operation indicator refer to the self diagnosis function uS Check the self diagnosis tabl
40. G R 437212 Panel Assembly Rear Outdoor 3721A20026Z 3721A20026Z R 559010 Fan Assembly Propeller 5901A10033A 5901A10033A R 549610 Bracket Assembly Motor Outdoor 4961A10015B 4961A10015B R 546810 AC Motor Assembly 4681A20122A 4681A20122A R 658740 Transformer Linear 5874A90003J 5874A90003J R 447910 Barrier Assembly Outdoor 4791A30002R 4791A30002R R 552203 1 Valve Service 5220A20005B 5220A20005B R 552203 2 Valve Service 5220A20001Q 5220A20001Q R 430410 Base Assembly Outdoor 3041A20066A 3041A20066A R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 88 Room Air Conditioner October 2006 P No 3828A20462G Printed in Korea
41. G0 352150 Hose Assembly Drain 5251A20011G 5251A20011G R 733010 Plate Assembly Installation 3301A20020A 3301A20020A R 135311 Grille Assembly Discharge Indoor 3531A10362A 3531A10362A R 159901 Louver Horizontal 5990A20068A 5990A20068A R 146811 Motor Assembly DC Stepping 4681A20055A 4681A20055A R 268712 PCB Assembly Display 6871A20574A 6871A20574A R 135312 Grille Assembly Front Indoor 3531A18013B 3531A18015E R 152302 Filter Air 5230A20064A 5230A20064A R 249951 Case Assembly Control Indoor 49954204955 49954204950 R 268714 Assembly Main 6871A20156Q 6871A20156P R 264110 Power Cord 6411A20013E 6411A20013E R 263230 1 Thermistor NTC 6323A20004A 6323A20004A R 266090 HVPS DC DC 6609A10003Z 6609A10003Z R 354210 Evaporator Assembly First 5421A20258B 5421A20258B R 35211B Tube Assembly Tubing 5211A29044A 5211A29044A R 359011 Fan Assembly Cross Flow 5901A20017H 5901A20017H R 342800 Bearing 4280A20004B 4280A20004A R 135516 Cover Assembly Motor 3551A20156B 3551A20156B R 346810 Motor Assembly DC 4681A20091J 4681A20091J R 267110 Remote Controller Assembly 6711A20073U 6711A20096Q R 131410 Chassis Assembly 3141A20034A 3141A20034A R 159830 Filter Assembly Air Cleaner 5983A20017F 5983A20017L R 152313 Filter Assembly Deodorizer 5231A20040K R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Servi
42. ORD ASSEMBLY 6411A20013E 6411A20013E 6410A20007E 6410A20007E 6410A20007F 266090 H V ASSEMBLY 6609A10003Z 6609A10003Z 66094100034 66094100032 6609A10003Z 267110 REMOTE CONTROLLER ASSEMBLY 6711A20077Y 6711A20077Y 6711A20124A 6711A20124A 67114201244 268712 PWB PCB ASSEMBLY DISPLAY 6871A20574A 6871A20574A 6871A20574A 6871A20574A 6871A20624A 268714 PWB PCB ASSEMBLY MAIN 6871A20675A 6871A20156A 6871A20156D 6871A20156C 6871A20156B 342800 BEARING 4280A20004B 4280A20004B 4280A20004B 4280A20004B 4280A20004A 346810 MOTOR ASSEMBLY INDOOR 4681A20151B 4681A20091J 4681A20091J 4681A20091J 4681A20091J 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20218A 5421A20218A 5421A20218A 5421A20220A 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901A20017F 5901A20017F 5901AR2441E 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301A20011A 3301 20011 3301A20011A 3301A20002A 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211A21363B 5211421363B 5211A21363B 5211A21378C WOCZZ CAPACITOR DRAWING 3H01487K NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 84 Hoom Air Conditioner Parts List Indoor Replacement Parts List DESCRIPTION a aksa REMARKS No AS W096E1G0 AS W126E1
43. R CODE 6 E DC Peak Current Error by the compressor lock If the DC LINK voltage below DC 140V occurs 5 times within 1 hour while the compressor is operating the appliance turns off and display ERROR CODE 6 E DC Peak Current Error by the Outdoor Fan Lock If it s 5 times within 1 hour in case of the temperature of outdoor pipe TH is over 65 C while the compressor is operating the appliance turns off and display ERROR CODE 6 Service Manual 39 Operation If the temperature of the heat sink TH reaches over Toff the Compressor stop instantly It will be limited the compressor operating frequency according to the heat sink TH refer to below FIG It will be blink 4 times when the thermistor is open or short also the temperature is over Toff a Heat Sink Temp No MODEL Ton Toff a 1 AS W0964DHO GHO 95 105 2 AS Wi264DHO GHO 95 105 3 AS W1865DHO 85 95 4 AS W1224DHO 85 95 5 AS W1424DH0 85 95 6 AS W1825DHO 85 95 7 AS WO96E1GO 85 95 8 AS WI26E1G0 85 95 If the temperature of the discharge pipe of compressor reaches over 130 C or below 30 C the compressor stop instantly It will be limited the compressor operating frequency according to the compressor dome TH Refer to below Fig Temperature range by COMP SPEC varies by 10 C D Pipe E n 2 241 MODEL Ton Toff 1
44. TION CONTROL BUTTON OPTIONAL Used to set the desired horizontal airflow direction RESET BUTTON Used prior to resetting time 2ND F BUTTON Used prior to using modes printed in blue at the bottom of buttons AUTO CLEAN OPTIONAL Used to set Auto Clean mode Service Manual 43 Disassembly Disassembly Indoor Ur t A 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 Conductor 44 Hoom Air Conditioner 2 To remove the Control Box Remove securing screws Pull the control box out from the chassis carefully 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 Disassembly i Service Manual 45 Disassembly e Unhook the tab on the right inside of the chassis at th
45. ation Us Auto Operation or Auto Changeover A Us Healthy Dehumidification Operation Heating Operation Cooling Model lt Heat Pump Model 10 11 12 13 14 15 16 17 START STOP BUTTON OPERATION MODE SELECTION BUTTON INDOOR FAN SPEED SELECTOR JET COOL JET HEAT Operation Operation starts when this button is pressed and stops when the button is pressed again Used to select the operation mode ROOM TEMPERATURE SETTING BUTTONS EM Used to select the room temperature Used to select fan speed in four steps low medium high and CHAOS Used to start or stop the speed cooling heating speed cooling heating operates super high fan cooling heating mode CHAOS SWING BUTTON Used to stop or start louver movement and set pm the desired up down airflow direction ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation TIME SETTING BUTTONS Used to adjust the time TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation ENERGY SAVING COOLING MODE BUTTON OPTIONAL Used to set Energy Save in cooling mode ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature PLASMA OPTIONAL Used to start or stop the plasma function HORIZONTAL AIRFLOW DIREC
46. c id EN OFF ON Indoor Fan Setting Step Low Low Auto Changeover The air conditioner changes the operation mode automatically to keep indoor tempera ture When room temperature vary over 2 C with respect to setting temperature air condition er keeps the room temperature in 2 C with respect to setting temperature by auto change mode Low Ambient 2 Cooling only Model ON OFF Cooling CYCLE Fan 30 Min Comp ON OFF Indoor Fan Setting Step Low Outdoor temp Outdoor temp Indoor temp 30 C If outdoor temperature drops below certain temperature liquid back is prevented by reducing fan speed It can prevent frosting of evaporator and keep cooling operation No matter even if the outdoor temperature reaches 10 C You can Cool your room at your desired temperature all your around Outdoor fan Outdoor pipe temp 0 C outdoor fan On Off control Outdoor temp 42 Room Air Conditioner Cond temp Outdoor temp 10 C Wiwa UW Outdoor fan On Off control 5 WA nape mnn 0 50 100 150 Time Min The controls will look like the following Signal transmitter lc 3 5 1 6 3 4 2 10 HAO OCANCEL 7 9 ON 0FF_ SET 1 AUTOCLEAN 12 8 n 13 14 15 RESET 16 Uo Flip up door opened Operation Mode Cooling Oper
47. ce Manual 85 Replacement Parts List Parts List Outdoor LOCATION DESCRIPTION SO REMARKS No AS W0964DHO AS W1264DHO AS W1865DHO 263230 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G 430410 BASE ASSEMBLY OUTDOOR 3041A20066A 3041A20066A 3041A20022Q 435301 GRILLE DISCHARGE 3530A20006B 3530A20006B 3530A20007B 435511 COVER ASSEMBLY CONTROL 3551A30115G 3551A30115G 3551A30102A 435512 COVER ASSEMBLY TOP OUTDOOR 3551A30104A 437210 PANEL ASSEMBLY FRONT 3721A20027Q 3721A20027Q 3721A20005H 437212 PANEL ASSEMBLY REAR 3720AP0003D 447910 BARRIER ASSEMBLY OUTDOOR 4791A30002G 4791A30002G 2H02110G 546810 MOTOR ASSEMBLY OUTDOOR 4681A20068G 4681A20122A 4681A20028K 550140 ISOLATOR COMP 4984AR4387A 4H00982E 4H00982E 552102 TUBE CAPILLARY BEND 5210A21447E 5210A31380D 552102 1 TUBE CAPILLARY BEND 5210A21447M 552102 2 TUBE CAPILLARY BEND 5210A33068B 552111 TUBE ASSEMBLY CAPILLARY 5211A21393C 5211A21393B 55211G TUBE ASSEMBLY EXPANSION 5211A21459A 5211A21459A 5211A21459A 552116 TUBE ASSEMBLY REVERSING 5211A10466B 5211A10466C 5211A21140B 552201 VALVE CHECK 3H01552F 3H01552F I 552202 VALVE REVERSING 5220AR3228D 5220AR3228D 5220AR3228E 554031 CONDENSER ASSEMBLY 5403A20019V 5403A20019V 5403A21012B 554160 COMPRESSOR 5416A90045A 5416A90029A 5416A90024A 559010 FAN ASSEMBLY PROPELLER 5901A10033A 5901A10033A 1A00195B 56
48. de Refrigerant TEMP service valve R 22 35 C 95 F 4 5kg cm G 56 8 71 0 P S 1 G R 410A 35 95 8 5 9 5kg cm G 120 135 P S 1 G Test running 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 5kg cm2 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 will have been collected in the outdoor unit Power Failure Compensation Function User Selection ON OFF 1 Operation Sequence Pr
49. e Job Indoor Outdoor LL Check the condition of connectors Check the condition of connectors The condition of P C B pattern The condition of P C B pattern The electronic components Service Manual 57 Troubleshooting Guide Refer to electronic contorol device drawing schematic diagram Trouble 1 The Product doesn t operate at all Turn off the main power and wait to 10 seconds Turn on the main power again LL Does Beeping sound is made from the indoor unit Check the voltage of power AC220V AC240V 50Hz The voltage of main power The voltage applied to the unit The P C B Ass y The connecting method of Indoor Outdoor connecting cable each color Fuse Noise Filter Power Module Bridge Diode etc S Primarily the operating condi tion of Micom is O K m Check CN DISP1 CN DISP2 of indoor PCB The operation check of the Indoor P C B Ass y Procedure Specification Remedy 1 The input voltage of power mod ule 2 The output voltage of power mod ule 4 ICO4D 7805 5 ICO1A KIA7036 1 AC230V 30V Check the rated voltage 2 12V 4 DC5V 5 The voltage of micom pin 19 DC4 5VT 1 Check the power outlet 2 Replace P C B Ass y 4 Replace P C B Ass y 5 Replace P C B Ass y 58 Room Air Conditione
50. e of refrigeration cycle Suction pressure Compared with the normal value Temperature Compared with the normal valve Cause of Trouble Defective compressor Description Current is low Clogging Pigh Defective 4 way reverse valve Figner 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 Current is low NOTICE 1 The suction pressure is usually 8 5 9 5kg 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 Guide Display Indoor Outdoor 1time ttime ttime ttime ttime Indoor Temp sensor error Sensor open or short O 2 times 2 times 2 times 8 2times Outdoor Temp sensor error s Sensor open or short 4times 4times Heat Sink sensor error E Sensor open or short sec Heat Sink temp is over 95 5times 5times Communication error 3 sec ec DC Peak error Error Indicator Cause of Error Over current error CT2 Indoor fan lock error BLDC fan model only dici Outdoor fan lock error 3 sec _ BLDC fan model only 10 timesggi 0 times 3 sec time 2times time 2times EEPROM Error T GE EEPROM Check sum Error time 3 times time 3 times PSC Error PSC
51. e same time slightly pull the evaporator toward you until the tab is clear of the slot Do 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 46 Room Air Conditioner Troubleshooting Guide Troubleshooting Guide 1 Model Capillary Tube INDOOR UNIT OUTDOOR UNIT m LIQUID SIDE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER i sa i Y D lt lt Z REVERSING 3 WAY VALVE ACCUMU VALVE LATOR sla COMPRESSOR COOLING HEATING 2 Model Adopted Electronic Expansion Valve INDOOR UNIT OUTDOOR UNIT m LIQUID SIDE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER 3 WAY VALVE Y J REVERSING ACCUMU VALVE LATOR COMPRESSOR COOLING HEATING Service Manual 47 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 connection Op
52. en position Closed position Pin 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 Open Open Closed O t PREGARE 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 Open 5 Servicing Open Open with charging cylinder Gas releasing Open 6 Open Open with charging cylinder Servicing 48 Room Air Conditioner Air purging Required tools hexagonal wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak detector The additional gas for air purging has been charged in the outdoor unit However if the flare connections have not be done correctly and there gas leaks a gas cylinder and the charge set will be needed Troubleshooting Guide The air in the indoor unit and in the piping must be purged If air remains in the refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction
53. ess the forced switch until BUZZER sounds 2 times beep beep Release the forced switch if BUZZER sounds 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 MC button Service Manual 29 Functions Functions Cooling Mode Operation Healty dehumidification Mode Operation Heating Mode Operation Jet Cool Mode Operation Jet Heat Mode Operation Energy Saving Cooling Mode Operation Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature sensor Thermistor Pipe temperature sensor Thermistor Room temperature control Maintain the room temperature in accordance with the Setting Temp Starting the Current Control Indoor fan is delayed for 5 sec at the starting Time Delay Safety Control Restarting is for approx 2 minutes Indoor Fan Speed Control Super High High Med Low Operation indication Lamps LED D Lights up in operation Lights up in Timer Mode or Sleep Mode n Lights up in Preheat Mode or Defrost Mode Lights up in Plasma Air Clean Mode Lights up in during Energy Saving Cooling Mode Operation Optional 30 Room Air Conditioner Functions Sleep Mode Auto Control The fan is switched to S Low Co
54. etergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping 5 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 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 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
55. g hole position 2 Insert the piping drain hose and the connecting cable into the piping hole 3 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 connec tion later 4 Tape the drain hose and the connecting cables 5 Indoor unit installation Hang the indoor unit from the hooks at the top of the installation plate Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall Connecting the piping to the indoor unit and the drain hose to drain pipe 1 Align the center of the pipes and sufficiently tighten the flare nut by hand 2 Tighten the flare nut with a wrench Outside diameter Torque mm inch kg m 06 35 1 4 1 8 09 52 3 8 4 2 912 7 1 2 5 5 015 88 5 8 6 6 3 When extending the drain hose at the indoor unit install the drain pipe 20 Room Air Conditioner Indoor unit tubing Flare nut Pipes Adhesive Vinyl tape narrow Wrap the insulation material around the connecting portion 1 Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material Bind them together with vinyl tape so that there may be no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape 3 Bundle the piping and d
56. g temperature decrease by 1 C After another 60min elapse it decreases by 1 C again Setting temp C Heating ON temp Setting temp Heating OFF temp Setting temp 3 0 C gt 1 2 Sleep time hr Service Manual 37 Operation When the power is restarted after a sudden power failure while in appliance operation the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory Operation mode that is kept on the memory State of operation ON OFF Operation mode setting temp selected airflow speed Sleep timer mode remaining time of sleep timer Chaos Swing To operate the appliance by force in case that the remote control is lost the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions The operation condition is set according to the outdoor temp and intake air temperature as follows i f Indoor temp Operating Mode Setting temp E ei over 24 C Cooling 22 21 24 Healthy Dehumidification 23 C High speed below 21 C Heating 24 The unit select before operating mode in hours Test Operation Press the Tact Switch for compulsory operation of the main body for 3 seconds in order to operate in the trial operation mode Operation mode Cold Indoor pan Strong wind COMP frequency Step 5 COMP compulso
57. gative ION A Clean Nano Plasma Negative ION A Clean 4way Nano Plasma F Negative ION Healthy dehumidification A Clean Nano Plasma F 4Way A changeove A clean LG Model Development Serial No ARTCOOL COLOR Mirror White Blue Wood Metal Cherry Function ean Low A ean 4way Low A ean 4 2565 lt Ommo oOo aS 10 Serial No 0 9 Walnut Gogh Sisley Quran Mecca A 2 amp 0 Service Manual 3 LG Model Name CN 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 A Chang_won R410A Z Brazil C Chang_won R407C D Indonesia T China X 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 N AC Inverter H P X C O E Heater Q DC Inverter C O Z H P E Heater W DC Inverter H P 4 5 Capacity 0 9 Cooling Heating 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 22
58. heck for gas leakage Re air Purging Re installation Troubleshooting Guide Outdoor unit Procedure 1 Confirm that both the liquid side valve and the gas side valve are set to the closed position 2 Connect the charge set and a gas cylinder to the service port of the Gas side valve Leave the valve on the gas cylinder closed 3 Air purging Open the valves on the gas cylinder and the charge set Purge the air by loosening the flare nut on the liquid side valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm g 6 Disconnect the charge set and the gas cylin der and set the Liquid side and Gas side valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 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 CAUTION Do not leak the gas in the air during Air Purging Service Manual 51 Troubleshooting Guide Balance Retrigerant of the 3 way Valve Gas leakage
59. ing 1 0 C condition of compressor same as cooling mode operation When intake air temperature reaches bolow the temp of setting 1 0 C compressor operate step1 step3 and indoor fan speed repeatly operate low or stop 34 Room Air Conditioner Operation Operating frequency of compressor depend on the difference of the temperature compressor off temp intake air temp Compressor off temp setting temp 3 0 C on temp setting temp If compressor operates at some operation frequency the operating frequency of compressor cannot be changed within 30 seconds Condition of compressor turned off When intake air temperature reaches 3 C above the setting temperature Condition of indoor fan turned off While in compressor on indoor pipe temp lt 20 C While in defrost control between the indoor and outdoor fans are turned off Compressor 2minutes delay After compressor off the compressor can restart minimum 2 minutes later The operating freq step of comp Temp differences Comp Operating frequency 2 5 3 0 C Step 1 2 0 2 49 C Step 2 1 5 1 99 C Step 3 1 0 1 49 C Step 4 0 5 0 99 C Step 5 0 0 0 49 C Step 6 0 5 0 C Step 7 The targeting operating freq of comp each model Model Comp Operating frequency Step 1 Step2 Step3 Step4 Step5 Step 6 Step7 AS W0964DH0 GHO 35 44 53 62 69 74 80 AS W1264DH0 GHO 20 38 53 63 72 79
60. ink temp target freq owing to CT Overheating Protection Power Module When the temp of power module increases to 85 C controller decreases Freq of Comp Freq Speed Control Up Down Speed It will be changed the drive freq of comp according to temp of indoor and outdoor Total Current Control Over Current Protection DC Peak Current Control 4 way Valve Control It is only operated in the heating operation mode except defrosting operation Outdoor Fan Motor Control o Although fan motor speed is middle it will change high speed in case of below AC193V over 40 C Cooling Mode of outdoor temp below 4 C Heating Mode of outdoor temp and over fc fh of comp Freq Middle speed Nomal mode Low speed Although fan motor speed is middle it will change Low speed in case of over AC 270V over 21 C Heating Mode of outdoor temp below 24 C Cooling Mode of outdoor temp Discharge Pipe Temp Control Low Ambient Comp Torque Control Over Heating Protection Comp 32 Hoom Air Conditioner Operation l Operation 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
61. 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 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 equivalent Seal a small opening around the pipings with gum type sealer 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 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 C 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 Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses A CAUTION Be
62. ioner 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be dis charged If 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 Trouble analysis Troubleshooting Guide 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current NOTICE Temp difference Current approx 0 C less than 80 of rated current Temp difference Current approx 8 C less than 80 of rated current Temp difference Current less than 8 C over the reated current Temp difference over 8 C All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakege Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant 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 tem perature difference is larger 2 Check temperature and pressur
63. is input the upper lower vane is reset to those of the initial Jet heating mode and then operated in order that the air outflow could reach under flow 1 New Chaos swing mode By the Chaos swing key input the upper lower vane automatically operates with the Chaos swing or it is fixed to the desired direction 54 SE 7 9 12 14k Model Cooling Operation CLOSED Mode8 S5 18 24k Model Cooling Operation CLOSED Mode8 ff W EA Reine Mode6 W Mode5 pe Mode4 Mode3 Mode2 E Modei OPEN 36 Room Air Conditioner Heating Operation CLOSED Heating Operation CLOSED Mode6 x Mode4 P on Operation When the sleep time is reached after 1 2 3 4 5 6 7hr is input by the remote control during the operation the operation of the appliance stops e When the appliance is on pause the sleep timer mode cannot be input 1 Sleep timer operation for cooling cycle While in cooling mode operation 30 min later since the start of the sleep timer the setting temperature increase by 1 C After another 30min elapse it increases by 1 C again Setting temp Cooling ON temp Setting temp 0 5 C Cooling OFF temp Setting temp 0 5 C gt 0 5 1 Sleep time hr 2 Sleep timer operation for heating cycle While in heating mode operation 60 min later since the start of the sleep timer the settin
64. m to the air conditioner This symbol indicates special notes Type 1 A J s liL Installation plate Type 2 Installation plate 7k 9k 12k 14k Btu Series 840 895 270 282 153 165 10 Room Air Conditioner Dimensions Type 1 Installation plate Type 2 9 Installation plate 18k 24k Btu Series 1090 30 1 0 8 7 Dimension mm mm mm Service Manual 11 Dimensions Gas side 3 way valve Liquid side 2 way valve E 7k 9k 12k 14k Btu Series m 770 T 540 Sm 245 in Men 285 T 65 T wa 518 L4 mm 100 12 Room Air Conditioner Dimensions Gas side Liquid side MODEL 18k 24k Btu Series m 870 fan 655
65. oling low Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours Natural Air Control by CHAOS Logic The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed Airflow Direction Control The louver can be set at the desired position or swing up and down automatically Auto Changeover Energy Saving Control Optional Horizontal airflow Direction Control Optional Auto Clean Optional The function will be operated while in any operation mode with selecting the function The function is to be stopped while it isoperating with selecting the function Defrost Deice Control Heating Both the indoor and outdoor fan stops during defrosting Hot start Control Heating The indoor fan stops until the evaporator pipe temperature will be reached at 30 C Heater Optional Service Manual 31 Functions Outdoor Unit Power Relay Control If power is on it will operate to chage capacitor on controller and power relay will operate after about 2 5sec Active Power Filter Control PSC The active power filter is designed to correct power factor cos 0 and to regulate DC link voltage It will be operated PFC circuit when the compressor freq is over 30Hz and wattage is over 450 watt Comp Freq Control The final operating freq of comp is set the lowest freq that limited outdoor temp discharge pipe temp heat s
66. r Troubleshooting Guide Trouble 2 Product doesn t operate with the remote controller Turn on main power u While the compressor has been stopped the compressor does not operate owing to the delaying function for 2 minutes after stopped LL 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 low speed as force Le s Caused by the remote controller LL Caused by other parts except the remote controller S When the mark 4 is displayed in LCD screen replace battery Check the contact of CN DISP 1 2 connector LL Check DISP P C B Ass y Voltage between CN DISP1 DC Check point Check the connecting circuit between MICOM PIN and CN DISP1 PIN Check receiver ass y Service Manual 59 Troubleshooting Guide Description open Check flow Indoor TH is connected to Indoor pcb assembly Connect to CN TH1 in indoor pcb assembly Description Indoor TH is short or YES Cause of error Indoor TH sensor is short or open Indoor TH sensor is not connected to the indoor pcb assembly Damage or defect on the sensing circuit of indoorpcb assembly R01H R02H R03H R04H C01H C02H YES
67. rain hose together by wrap ping them with cloth tape over the range within which they fit into the rear piping housing section Reroute the pipings and the drain hose across the back of the chassis Indoor unit installation 1 Remove the spacer 2 Ensure that the hooks are properly seated on the installation plate by moving it left and right 3 Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound Installation Plastic bands Insulation material 1 Connection Indoor pipe unit piping Vinyl tape Wrap with vinyl tape wide Pipe Vinyl tape narrow Connecting cable Pipe Drain hose Vinyl tape narrow Wrap with vinyl tape wide Piping for passage through piping hole Connecting cable t Drain Service Manual 21 Installation A CAUTION Installation Information For left piping Follow the instruction below Good case Press on the upper side of clamp and unfold the tubing to downward slowly Bad case Following bending type from right to left may cause damage to the tubing 22 Room Air Conditioner Outdoor 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 nu
68. rily operates for about 18 minutes irrespective of indoor temperature 38 Room Air Conditioner Operation control If the operating current reaches 11 the operating frequency of the compressor decrease After decreasing the operating frequency by 1step if operating current is below 11 for 60 seconds continuous ly the operating frequency of compressor increase by 1step E CT2 control f the operating current of the appliance reaches 12 the compressor stop instantly and 2 minutes later the compressor restart again If CT2 occurs 5 times within 1hour the appliance turn off and display ERROR CODE 7 Control table of operating frequency down 12 Current of compressor cut off 11 Model Outdoor temp gt 38 C Outdoor temp lt 38 C 12 Cooling Heating Cooling Heating 1 AS W096DH0 GH0 5 5 6 5 6 7 9 2 AS W126DHO GHO 6 5 7 5 7 8 10 3 AS W1865DH0 9 10 5 9 5 11 13 4 AS W1224DH0 6 6 5 6 5 7 8 5 5 AS W1424DH0 6 6 5 6 5 7 9 6 AS W1825DHO 10 5 11 5 11 12 14 7 AS WO96E1GO 7 8 5 7 5 9 10 8 AS W126E1G0 8 5 7 5 9 10 cf is set the lowest level between intial value and in case dectection of dc paeak current E DC Peak Current Error by a fault signal of IPM If the operating current of IPM reaches 35A 3A the compressor stop instantly If DC PEAK occurs 5 times within 1 hour the appliance turns off and display ERRO
69. ring screws that retain the front panel Pull the lower left and right sides of the grille toward you and lift it off Pull the right and the left side To check the drainage Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit SQN x LT d lt gt Drain piping The drain hose should point downward for easy drain flow Downward slope Do not make drain piping 65 Do not raise drain water Air x i k i i E E Water Water 1 Water leakage leakage leakage Tip of drain hose dipped in water 26 Room Air Conditioner Form the piping by wrapping the connecting portion of the indoor unit with insulation mate rial and secure it with two kinds of vinyl tapes If you want to connect an additional drain hose the end of the drain outlet should be routed above the ground Secure 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 Secure the tapped piping along the exterior wall using sad dle or equivalent Seal small openings around pipings with a gum type sealer Wy al WE sable sI S WS lt Trap is required to prevent water from entering
70. ring state of RO2H CO1H Connect to CN TH2 in outdoor PCB assembly 18K Description 7 Heat sink TH in outdoor pcb is open or short Heat sink Temp is over p 95 Heat sink Temp is over 95 Heat sink TH in outdoor pcb is open or short Damage or defect on the sensing circuit of outdoor pcb assembly R01H RO2H C01H Check flow YES YES Heat sink TH Is connected Heat sink TH in outdoor Sensing circuit of outdoor to CN TH2 in outdoor pcb pcb is Right pcb is right Check heat sink TH Measure resistance of TH about 10k Q at 25 C Check soldering state of CO1H Connect to CN TH2 in Outdoor pcb assembly Service Manual 61 Troubleshooting Guide Description Cause of error Wrong or missing wiring between indoor and outdoor unit cable Defect of communication components in indoor pcb assembly Pio Defect of communication components in outdoor pcb assembly Communication Error Defect of power supply components in outdoor pcb assembly No ground connection in air conditioner unit affected by noise in power source Check flow YES YES SANO votage ere ees Is the voltage of GND amp DC5V in KD m outdoor about Outdoor pcb about DC 5V AC 220 240V p i Wiring connection Is right Indoor Outdoor 1 BR 1 BR Check power connector Check FUSE NF01 02J PTC 2 BL 2 BL Is not connected to the Power Module BD
71. s must Type 1 be done safely TY 1 IEEE I 3 CHASSIS Distance mm Installation plate Y Grade A B D D B S4 73 55 82 55 gaa 55 121 62 258 62 Left rear piping Right rear piping Type 2 Type 2 CHASSIS Distance mm Grade A B p 0 54 50 105 59 105 POL S5 95 122 235 122 p fh Installation plate B 0 dica C VELE EA Left rear piping Right rear piping Drill the piping hole with a g70mm hole core drill Drill the piping hole at either the right or the left with WALL Outdoor the hole slightly slanted to the outdoor side Indoor 3 16 5 16 16 Air Conditioner Flaring W Installation Main cause for gas leakage is due to defect in flaring work Carry out correct flaring work in the following 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 outdoor unit 3 Cut the pipes a little longer than measured distance 4 Cut the cable 1 5m longer than the pipe length Burrs removal 1 Completely remove all burrs from the cut cross
72. section of pipe tube 2 Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing 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 Flaring work Pipe Reamer gt Point down A Flare nut Copper tube 1 Firmly hold copper pipe in a die in the dimension shown in the table below 2 Carry out flaring work with the flaring tool Outside diameter A mm inch mm 26 35 1 4 070 5 29 52 3 8 0 0 5 012 7 1 2 0 0 5 15 88 5 8 071 0 019 05 3 4 1 0 1 3 Clamp handle Red arrow mark Service Manual 17 Installation Check 1 Compare the flared work with the figure by 2 If a flared section is defective cut it off and do flaring work again Indoor 1 Prepare the indoor unit s piping and drain hose for installation through the wall 2 Remove the plastic tubing retainer see the illustration by and pull the tubing and drain hose away from chassis 3 Replace only the plastic tubing holder 1 not the hold er 2 in the original position Smooth all round Inside is shiny without scratches 1 2 Improper flaring Inclined Surface Cracked Uneven w damaged thickness Even length all round
73. service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 28 Hoom Air Conditioner 3 way valve Close 2 way valve Open Hexagonal wrench Gas side Liquid side Cap 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 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 n 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 air Discharge temperature 4 For reference the gas side pressure of optimum condition is as below Cooling Outside ambient The pressure of the gas si
74. 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 1 G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S 1 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 Air purging 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 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 Service Manual 27 Air purging Soap water method 1 Remove the caps from the 2 way and 3 way valves 2 Remove the service port cap from the 3 way valve 3 To open the 2 way valve turn the valve stem counter clockwise approximately 90 wait for about 2 3 sec and close it 4 Apply a soap water or a liquid neutral d
75. t stop when the connections are retightened repair the location of the leak dis charge all of the gas through the service port and then recharge with the specified amount of gas from a gas cylinder Service Manual 49 Troubleshooting Guide Pumping Down Outdoor unit Purge the air 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 9 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 Room Air Conditioner 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 c
76. t 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 09 52 3 8 4 2 912 7 1 2 5 5 215 88 5 8 6 6 19 05 3 4 6 6 Installation Liquid side piping Smaller diameter Gas side piping Bigger diameter Torque wrench Service Manual 23 Connecting the cable between indoor unit and outdoor unit l Connecting the cable between indoor unit and outdoor unit 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 A CAUTION The above circuit diagram is subject to change without notice The earth wire should be longer than the common wires When installing refer to the circuit diagram behind the panel front of the indoor unit Connect the wires firmly so that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram A CAUTION Main power source If a power plug is not used provide a circuit breaker between power source and the unit as shown by Air Circuit Breaker Conditioner Use a circuit T breaker or time delay fuse A CAUTION The power cord connected to the A unit should be selected according to the following specifications Type B approved by HAR or SAA
77. temp 1 0 C for 3 minutes continuously When intake air temperature reaches below the temperature of setting temp 1 0 C Compressor 2 minutes delay The compressor can restart minimum 2 minutes later after compressor off The operating freq step of comp Temp differences Comp Operating frequency over 2 5 C Step 7 2 0 2 49 C Step 6 1 5 1 99 C Step 5 1 0 1 49 C Step 4 0 5 0 99 C Step 3 0 0 0 49 C Step 2 0 5 0 C Step 1 The targeting operating freq of comp each model Model Comp Operating frequency sa Step 1 Step2 Step3 Step4 Step5 Fc Step6 Step 7 AS W0964DH0 GHO 35 39 43 47 52 57 62 AS W1264DH0 GHO 20 35 47 56 63 70 78 AS W1865DH0 16 32 58 64 70 75 85 AS W1224DH0 20 35 47 54 65 70 74 AS W1424DH0 20 35 47 54 72 74 78 AS W1825DH0 16 32 53 62 72 75 85 AS WO096E1 GO 25 35 40 52 56 74 82 AS W126E1G0 25 35 40 52 66 74 82 When the dehumidification operation is set by the remote controller the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature Intake air Temp Setting Temp 26 lt intake air temp 25 C 24 C lt intake air temp lt 26 C intake air temp 1 C 18 lt intake air temp lt 24 C intake air temp 0 5 C intake air temp lt 18 C 18 C When intake air temp reaches above the temp of sett
78. um pump oil becomes dirty or depleted replenish as needed Service Manual 53 Troubleshooting Guide Gas Charging After Evacuation Check valve Charging cylinder Outdoor unit 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 a scale and reverse the cylinder 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 54 Room Air Conditioner 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 condit
79. y 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 21 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 Service Manual 25 Checking the drainage and forming the pipings l Checking the drainage and forming the pipings To remove the front panel from the indoor unit Set the air direction louvers up and down to the position horizontally by hand Remove the secu

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