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Room Air Conditioner

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1. 64 Air Conditioner Exploded View Outdoor Unit 9k Btu h Series Service Manual 65 Exploded View Outdoor Unit 18k 24k Btu h Series
2. 66 Room Air Conditioner Replacement Parts List Parts List Indoor Exploded View LOCATION PART No No 865807008 S092CG S122CG S182CG nso S122HG BENANG 131410 CHASSIS ASSEMBLY 3141 20019 3141A20019B 3141A20020C 3141A20019B 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531 103070 3531A10307D 3531A20252C 3531 103070 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A14002G 3531A14002G 3531A20253G 3531A14000H 135314 GRILLE ASSEMBLY INLET 3531 10339 3531 10339 3531A20298B 3531A10312C 135516 COVER ASSEMBLY MOTOR 3551 20156 3551A20156A 3551A20154A 3551A20156B 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A 4681 20055 152302 FILTER MECH A C 5230A20051A 5230A20051A 5230A20052A 5230 20051 159901 VANE HORIZONTAL 5990A20048A 5990A20048A 5990A20049A 5990A20048A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157J 4995A10157J 4995A90168L 4995A10157L 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323 20004 R 264110 POWER CORD ASSEMBLY 6411 20015 6411A20015H 6411 20047 6411200150 267110 REMOTE CONTROLLER ASSEMBLY 6711A20073L 6711A20073L 6711A20077T 6711
3. LOCATION DESCRIPTION E REMARKS No S242CG uso S182HG uso S242HG uso 237204 PANEL SIDE R 237205 PANEL SIDE R 430410 BASE ASSEMBLY OUTDOOR L N 3041A10027C 3041 10027 3041 10027 435301 GRILLE DISCHARGE 3530A20007J 3530420007 3530420007 R 435511 COVER ASSY CONTROL OUTDOOR 3551A30079M 3551A30079N 3551A30079N R 435512 COVER ASSEMBLY TOP OUTDOOR 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A20113C 3721A20260A 3721A20260A R 437212 GRILLE REAR 3721 20114 3721 20114 3721 20114 R 447910 BARRIER ASSY OUTDOOR 4791A20023A 4791A20023A 4791A20023L R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20028T 4681A20028T 4681A20028T R 549610 MOUNT ASSEMBLY MOTOR 4961A20017B 4961A20017B 4961A20017B R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H0098E R 552111 TUBE ASSEMBLY CAPILLARY 5211A30778B 5211A30812A 521 1A30778C R 552116 TUBE ASSEMBLY REVERSING 521 1A20270M 521 1A20270L R 552201 VALVE CHECK 3A01020H 3A01020D R 552202 VALVE REVERSING 3A02027G 3A02027G R 552208 1 VALVE SERVICE 5220A20002C 5220A20005B 5220A20002C R 552203 2 VALVE SERVICE 2 00392 2 00392 2A00392E R 554031 CONDENSER ASSEMBLY BENT 5403A20164E 5403A20205A 5403A20164E R 554160 COMPRESSOR SET 2520UHFK2DB 2520UMBK2XA 2520UHGK2DA R 559010 FAN ASSEMBLY PROPELLER 5901A10032B 5901A10032A 5901A10032A R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Y 3A02028Y R 567502 OL P R 649950
4. Check the DC voltage on the PWB ASSEMBLY lt The details of check are as followings Comp Relay Outdoor fan Relay Check point Comp ON Comp OFF Check point Fan ON Fan OFF Between Micom Between Micom NO 59 and GND DEN NO 53 and GND Desv DG OV Between IC01M Between IC02M NO 15 and GND Below DC 1V NO 12 and GND Below DC 1V About 12V 4 way Relay Check point 4 way ON 4 way OFF Between Micom NO 51 and GND DEN DON Between IC02M NO 11 and GND Below DC 1 About DC 12V Air Conditioner i Turn off Main Power Troubleshooting Guide Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor 4 way Check the open or short of connecting wires between indoor and outdoor Service Manual 61 Exploded View Exploded View Indoor Unit 62 Room Air Conditioner Exploded View Indoor Unit G122C 582 63 Service Manual Exploded View Outdoor Unit 12k Btu h Seriess
5. e ert 67 2 Hoom Air Conditioner LG 1 2 3 456 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 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 Cooling only V AC Inverter C O H Heat pump N AC Inverter H P X 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 220V 50Hz 3Phase 7 2 220V 60Hz 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 Chassis of Unit Ex LSP gt 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 F Nano Plasma F A changeove A clean Low A 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 cle
6. 10 Air Conditioner Dimensions Installation plate 18k 24k Btu Series 1090 3 00 178 Dimension m mm mm Service Manual 11 Dimensions Installation plate 12k G122C sre 900 285 156 12 Room Air Conditioner Dimensions Gas side 3 way valve Liquid side 2 way valve DIM 9k 12k mm 575 717 H mm 525 498 mm 260 229 L1 mm 301 270 L2 mm 73 56 L3 mm 392 464 L4 mm 35 17 L5 mm 100 130 Service Manual 13 Dimensions Liquid side 2 way valve Gas side 3 way valve a proce 18k Btu Cooling Only Model W m 801 H nam 555 D mm 262 T Es 339 T mes 37 T ECH 543 6 4 mmm 11 4 L5 mm 591 T im 105 T ui 105 La n 72 5 Lo nm 86 4 L10 mm d 14 Hoom Air Conditioner Dimensions Gas side 3 way valve Liquid side 2 way val
7. 10 Used to stop start louver movement and set 7 9 the desired up down airflow direction ee 12 7 ON OFF TIMER BUTTONS 8 WOT 17 Used to set the time of starting and stopping operation L 14 8 SETTING 15 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 Timer operation 10 SLEEP MODE AUTO BUTTON p Used to set Sleep Mode Auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating Operation Mode Cooling Operation DA 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature Auto Operation or Auto Changeover DA 13 PLASMA OPTIONAL Healthy Dehumidification Operation Used to start or stop the plasma function A 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 Cooling Modell D Heat Pump Model 36 Room Air Conditioner 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
8. 437212 GRILLE REAR 3530A10172C 3530 10251 1H00697M 3530 10251 447910 BARRIER ASSY OUTDOOR 4790 100250 4790 10057 4791AR7047A 4790A10057B R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20068K 4681A20004D 4681AR1392R 4681A20004D R 549610 MOUNT ASSEMBLY MOTOR OUTDOOR R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H00982E 4H00982E R 552111 TUBE ASSEMBLY CAPILLARY 5211 21143 5211A21143P 5211A21202B 5211A30708J R 552116 TUBE ASSEMBLY REVERSING 5211A29021D R 552201 VALVE CHECK 3H01552F R 552202 VALVE REVERSING 5220AR3084E R 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 2H0220E 5220A20005B R 552203 2 VALVE SERVICE 5220A20040A 2H01890B 2A00392N 2H01890P R 554031 CONDENSER ASSEMBLY BENT 5403A20059F 5403A20198M 5403A20072Q 5403A20197H R 554160 COMPRESSOR SET 2520UKAK2CA 5416A20013V 2520UMDK2JA 5416A20013V R 559010 FAN ASSEMBLY PROPELLER 5900AR1266C 5901A10055A 5900AR1119B 5901A10055B R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Y R 567502 6750U LO39A 6750A30001Q 6750A30001Q R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A10162B 4995A20441D 4781AR1459P 4995A90441C R WOCZZ CAPACITOR DRAWING 6120AR2194H 2H01451P 202 2 01451 NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 74 Hoom Air Conditioner Replacement Parts List
9. 1855528 RY CDMP m CN U IXVED _ m 5 CM 0156CC8L gt Ils gt CM 6 0 V 99 Ed e LC E1 4 8 4 eo fe 2 id o up o o aoTo ao gt ei 1 i Oe 28 oS o 2 d e SEN 5 CN RF Ki T amp Bi 6870 90238 8 ere o i 6 E 8 5 ii i ASSY 687 60570 6 ST 8 51 51 m co 5 e sla CN 4WAY s 5 s E 3 O icon Wi Eu d 8 e 8 8 BS Ur 5 6 E NIC 286888 0 ud Ce 2 16013 5 M C03J BOTTOM VIEW 44 Hoom Air Conditioner Schematic Diagram e Model G122C 582 MAIN P W B ASSEMBLY lt TOP VIEW o C 2004 06 19 DIP Gare 250 2 USE CN U D 888888 88388 288888888 CN THI 55 gt 63 CN 4VAY e 0 60 SIT H 8 8 8 8 e 5 o 1 9 ae S 501 5 215 gt 8 5 Ci J10 5 5 4 2 e eoLe e ole gt coir 5
10. 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 A 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 Precautions Operation Use soft cloth to clean 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 There is risk of fire electric shock or damage to the 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 E Dimensions This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes Installation plate Model 9k 12k Btu Series Dimension 840 270 D mm 153
11. 10339 R 135516 COVER ASSEMBLY MOTOR 3551A20156B 3551A20156B 3551A20156B R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230A20051B 5230A20051B 5230A20051B R 159901 VANE HORIZONTAL 5990A20069A 5990A20069A 5990A20069A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157V 4995A10157V 4995A10157W R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 641 1A20015H 6411A20015H 6411A20015H R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90031L 6711A90031L 6711A20073N R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20680F 6871A20680F 6871A20680D R 268714 PWB PCB ASSEMBLY MAIN 6871A20572G 6871A20572G 6871 20572 R 342800 BEARING 4280 20004 4280 20004 4280 20004 R 346810 MOTOR ASSEMBLY INDOOR 4681A20151E 4681A20151D 4681A20151D R 352118 TUBE ASSEMBLY TUBING 5211 21363 5211A21363B 5211A21363B R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211 29010 5211 29010 5211 29010 R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A22110A 5211A22110A 5211A22110A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20218A 5421A20218A R 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901A20017F R 668713 PWB PCB ASSEMBLY SUB 6871A20923H 6871A20923J 6871A20923K R 733010 PLATE ASSEMBLY INSTALL 3301 20020 3301A20020C 3301A20020C R WOCZZ CAPACITOR DRAWING 3H01487K 3H01487K 3H01487K R NOTE Please ensure GCSC since these parts may be chan
12. 3531 20252 3531 20252 3531A10307T R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A23004B 3531A23006D 3531A23006D 8 R 135314 GRILLE ASSEMBLY INLET 3531A10339A 3531A20298A 3531 20298 3531A10339A R 135516 COVER ASSEMBLY MOTOR 3551A20156B 3551A20154A 3551A20154B 3551A20156B R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681 20055 4681A20055A 4681A20055A R 152312 FILTER ASSEMBLY DEODORIZER 5231 20040 5231A20040B 5231A20040B 5231A20040A R 159830 AIR CLEANER ASSEMBLY 5983A20017E 5983A20018E 5983A20018E 5983A20017E R 159901 VANE HORIZONTAL 5990A20069A 5990A20071A 5990A20071A 5990A20069A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157Z 4995A11008S 4995A11008T 4995 101577 R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411 20015 6411 20047 6411A20047B 6411A20015H R 266090 H V ASSEMBLY 6609A10003Z 6609A10003Z 6609A10003Z 6609A10003Z R 267110 REMOTE CONTROLLER ASSEMBLY 6711 90031 6711A90032U 6711A90032U 6711A90031E R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20680E 6871A20681E 6871A20681E 6871A20680E R 268714 PWB PCB ASSEMBLY MAIN 6871A20572G 6871A20572G 6871A20572G 6871A20572G R 342800 BEARING 4280A20004B 4280A20004A 4280A20004A 4280A20004B R 346810 MOTOR ASSEMBLY INDOOR 4681A20151D 4681A20003B 4681A20003F 4681A20151E R 35211B TUBE ASSEMBLY TUBING 5211A21363B 5
13. Ki Tia zc CC Wrap the area which accommodates the rear piping hous ing section with vinyl tape Connection e Indoor pipe unit pipe Vinyl tape Wrap with vinyl tape wide Connecting cable Vinyl tape narrow Service Manual 21 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 Don t connect the cable to the indoor unit Make a small loop with the cable for easy connection later Tape the drain hose and the connecting cable Connecting cable Indoor unit installation Hang the indoor unit from the hooks at the top of the instal lation plate 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 22 Hoom Air Conditioner Connecting the pipings to the indoor unit and the drain hose to drain pipe Align the center of the pipes and sufficiently tighten the flare nut by
14. Relrigerant TEMP service valve R 22 35 C 95 F 4 5kg cm G 56 8 71 0 5 1 6 410 35 95 8 5 9 5 120 135 5 1 9 30 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 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas Close the liquid side service valve all the in gt 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 Functi
15. by hand Remove the securing 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 2 lt gt Drain piping The drain hose should point downward for easy drain flow Downward slope Do not make drain piping 6 Do not drain water Air Y L h AT uu Water b is i Water 5 leakage leakage leakage Tip of drain hose dipped in water G SE Ditch 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 II you want to connect an additional 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 L cable Trap is required to prevent water from entering into electrical parts In cases where the Out
16. hose Service Manual 19 Flaring work and connection of piping E 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 Use the piping kit accessory or pipes purchased locally Measure the distance between the indoor and the outdoor unit Cut the pipes a little longer than the measured distance Cut the cable 1 5m longer than the pipe length pipe 90 Slanted Uneven Rough 3 E Burr removal Completely remove all burrs from the cut cross section of pipe tube Putthe 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 gt Flaring work Firmly hold copper pipe in a die in the dimension shown in the table above Clamp handle Red arrow mark 20 Air Conditioner Carry out flaring work using flaring tool as shown below 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
17. 080 poi 9 2 e 9 eo fo ZNR01F ROIL ee al amp a o MW eo EZ amp 8 A z 8 el e 3s e o cosy 9050 R01J e W 000909 o o C04J ROD Coen 9 0 SMPS PWB 68704902394 PWB ASM 6871420573 lt BOTTOM VIEW O O CN THL CN DISP1 CN U D FUSE eu UN ee 9 s RY COMP E 5e 9 3 Je CN 4WAY 8 e e ee CN NI 3 5 0 ee NF01J 25 ti e e e 6 8 COLJ e ues Cor e e e rroa 3808 20 ROF A1031 Service Manual 45 Schematic Diagram DISPLAY ASSEMBLY 6871A20574B ei e GA es ewe e LED1 LED2 55 RO2G RO4G PWB P No 6870A90240A PCB ASSY 6871A20574 01 As 6871 20575 G122C sn Oe 1 MI EDe 46 Room Air Conditioner Troubleshooting Guide Troubleshooting Guide 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSE
18. CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 5 1 9 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 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 28 Hoom Air Conditioner 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 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 detergent on
19. Compare the flared work with figure below If flare is noted to be defective cut off the flared sec tion and re flare it Smooth all round Inside is shiny without scratches 4 E Improper flaring gt YT 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 right piping Route the indoor tubing and the 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 inside the unit Connecting cable NOTE If the drain hose is routed inside the room insulate the hose with an insulation materia
20. E E R Btu hW 9 23 10 21 9 44 10 94 9 23 10 35 Indoor W Motor Output Outdoor 20 6 19 20 6 19 45 86 45 86 Dimensions WxHxD Indoor Outdoor 1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178 801 x 555 x 262 840 x 577 x 276 840 x 577 x 276 840 x 577 x 276 Indoor Net Weight Outdoor kg 13 5 13 5 13 5 13 5 60 60 60 60 Refrigerant g 1 240 R22 1 350 R22 1 200 R22 1 480 R22 Airflow Direction Control Up amp Down O O 0 Airflow Direction Control Left amp Right O O 0 C 80 VVI 0 0 0 Timer 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF Self Diagnosis O O 0 0 Remocon L C D wireless L C D wireless L C D wireless L C D wireless Service Valve Liquid Gas inch mm 1 4 6 35 3 8 9 52 1 4 6 35 3 8 9 52 5 8 15 88 5 8 15 88 5 8 15 88 5 8 15 88 Sleeping Operation O O 0 0 Drain Hose O O 0 0 Connecting Cable 1 5mm x 3 2 5mm x 3 1 5mm x 8 075mm x 3 2 5mm x 3 0 75mm x 3 Power Cord 1 5mm x 8 2 5mm x 3 1 5mm x 3 Service Manual 2 5mm x 3 17 Installation Installation Indoor unit Do not have any heat or ste
21. and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run Air purgingd 3 way valve Close 2 way valve Open Gas side Hexagonal wrench Cap Vacuum pump Service Manual 29 Test running E 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 g 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 w Discharge temperature 4 For reference the gas side pressure of optimum condition is as below Cooling Outside ambient The pressure of the gas side
22. forced operation the key input the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation Service Manual 33 Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room tem perature and resets in 18241 minutes During test operation if remote controller signal is received the unit operates as remote controller sets If you want to use this operation open the front panel upward and Press the power button let it be pressed for about 3 seconds 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 If the indoor pipe temp is below 0 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 or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the condition of the room temperature Buzzer Sounding Operation When the appliance operation key is input by the remote control the short beep beep sounds When the appl
23. hand 0205 Flare 4 SE Indoor i Tighten the flare nut with a wrench Indoor unit tubing Outside diameter Torque mm inch kg m 26 35 14 1 8 09 52 3 8 4 2 912 7 1 2 5 5 215 88 5 8 6 6 219 05 3 4 6 6 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 mec cC EE UC Flaring work and connection of piping Wrap the area which accommodates the rear piping hous Indoor unit installation ing section with vinyl tape Remove the spacer Au E SE Ensure that the hooks are properly seated on the installa Vinyl tape tion plate moving it left and right wide Pipe 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 clicking sound 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 A CAUTION Vinyl tape narrow Installation Information For lef
24. 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 I 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 service valves
25. 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 Max Max Additional Btu h Length Elevation Length Refrigerant Btu h GAS LIQUID m A m 38 2952 1 4 06 35 5 7 15 20 12 127 1 4 06 35 5 7 15 20 12 127 1406 35 5 15 30 20 18k 28k 5 8 015 88 1 4 06 35 5 15 30 20 58 01588 380952 5 15 30 30 5 8 715 88 2 75 15 30 30 30k 38k 3 4 19 05 2 75 15 30 50 Indoor unit Outdoor unit Indoor unit Outdoor unit Outdoor unit Nes If case more than 5 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 wall you select should be strong and solid enough to prevent 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 align ing the centerline using a level Type A screw SR2 12K 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
26. 0720 2H02079T 3041A10027C 3041A20079A R 435301 GRILLE DISCHARGE 3530A10250B 1 00840 3530A20007J 3530A10059H R 435511 COVER ASSEMBLY CONTROL OUTDOOR 3551 30136 3551A20030C 3551 30079 3551A30023W R 435512 COVER ASSEMBLY TOP OUTDOOR 3H03465J 3H03465J R 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A10153B 2H02674V 3721A20260A 3721 20258 R 437212 PANELASSEMBLY REAR OUTDOOR 3530A10251B 1 00697 3721A20114F 0 R 447910 BARRIER ASSEMBLY OUTDOOR 4790A10057B 4791AR7047A 4791A20023A 4790A10025D R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20004D 4681A20028T 4681A20068K R 549610 MOUNT MOTOR 4960A10018B 1 00838 4961A20017B R 550140 ISOLATOR COMP 4H00982E 4H00982E 40220 1005 4 00982 R GROMMET 4022U L005A R 552111 TUBE ASSEMBLY CAPILLARY 5211 21143 5211A21202B 5211A21143R R 552203 1 VALVE SERVICE 5220A20005B 2H02200H 5220A20002C 8 R 552203 2 VALVE SERVICE 2H01890P 2A00392N 2A00392N 5220A20040A R 554031 CONDENSER ASSEMBLY BENT 5403A20198M 5403A20072Q 5403A20164E 5403A20059F R 554160 COMPRESSOR SET 5416A20013V 2520UMDK2JA 2520UHFK2DB 25200 2 559010 FAN ASSEMBLY PROPELLER 5901A10055A 5900AR1119B 5901A10032B 5900AR1266C R 567502 6750A30001Q 6750U L039A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A90441D 4995A91459P 4995A90261X 4995A10162B R WOCZZ CAPACITOR DRAWING 6120AR2194H R NOTE Please
27. 131410 CHASSIS ASSEMBLY 3141 20020 3141 20020 3141 20020 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20252C 3531A20252C 3531A20252C R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A20253G 35314202531 35314202531 R 135314 GRILLE ASSEMBLY INLET 3531A20254D 3531A20254D 3531A20254D R 135516 COVER ASSEMBLY MOTOR 3551A20154B 3551A20154A 3551A0154B R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A R 152302 FILTER MECH 5230A20052A 5230A20052A 5230A20052A R 159901 VANE HORIZONTAL 5990A20049A 5990A20049A 5990A20049A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A90168M 4995A90168Q 4995A10168L R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411A20047B 6411 20047 6411A20047B R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20077T 6711A20077V 6711A20077V R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20624B 6871A20624B 6871A20624B R 268714 PWB PCB ASSEMBLY MAIN 6871A20572E 6871 20572 6871 20572 R 342800 BEARING 4280 20004 4280 20004 4280 20004 R 346810 MOTOR ASSEMBLY INDOOR 4681A20003F 4681A20003B 4681A20003F R 35211B TUBE ASSEMBLY TUBING 5211A21378B 5211A21378E 5211A21378B R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A39010A 5211A39010A 5211A39010A R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A30756B 5211A30756A 5211A30756B R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20220A 5421A20220A 5421A20220A R 359011 FAN ASSEMBLY CROSS FLOW 5901A924
28. 15V 50Hz 9 380 415V 60Hz CHASSIS Look Division 7 Chassis 2 Name of Chassis of Unit 8285 8 LSP gt SP SQ LG1 8 Look A Z Look SR G LG2 SEMI PANEL Color Artcool Model 5 1 2 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 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 lt lt gt 10 1 9 LG Model Development Serial ARTCOOL COLOR R Mirror W White B Blue D Wood M Metal C Cherry 4 Hoom Air Conditioner Safety Precautions l Safety Precautions To prevent injury to the user or other people and property the following instructions must be followed Incorrect operation due to ignoring instructi
29. 211A21378E 5211A21378B 5211A21363A R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A29010A 5211A39010A 5211A39010A 5211A29010A R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A22110A 5211A30756A 5211A30756B 5211A22110A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20220A 5421A20220A 5421A20218A R 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A92441E 5901A92441E 5901A20017F R 668713 PWB PCB ASSEMBLY SUB 6871A20923 6871A20924G 6871A20924H 6871A20923H R 733010 PLATE ASSEMBLY INSTALL 3301A20020C 3301A20020B 3301A20020B 3301A20020C R WOCZZ CAPACITOR DRAWING 3 01487 3 01487 3H01487G 3H01487K R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 72 Hoom Air Conditioner Parts List Indoor Replacement Parts List LOCATION PART No No DESCRIPTION CPC dE REMARKS 131410 CHASSIS ASSEMBLY 3141 20024 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10314A R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A10315D R 135516 COVER ASSEMBLY MOTOR 3551A20169A R 146811 MOTOR ASSEMBLY STEP 4681A20055A R 152302 FILTER MECH A C 5230A20014C R 159901 VANE HORIZONTAL 5990A20007A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A90435B R 263230 THERMISTOR ASSEMBLY 6323A20004A R 264110 POWER CORD ASSEMBLY 6411A20013E R 26
30. 41E 5901A92441E 5901A92441E R 668713 PWB PCB ASSEMBLY SUB 6871A20576H 6871A20576Q 6871A20576R R 733010 PLATE ASSEMBLY INSTALL 3301A20002A 3301A20002A 3301A20002A R W0CZZ CAPACITOR DRAWING 3H01487G 3H01487F 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 LOCATION PART No No 509200 824200 n51 818200 ws 131410 CHASSIS ASSEMBLY 3141 20019 3141 20020 3141 20020 R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10307D 3531 20252 3531A20252C R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531 14003 3531A20299B 3531A20299B R 135314 GRILLE ASSEMBLY INLET 3531 10339 3531A20298B 3531A20298B R 135516 COVER ASSEMBLY MOTOR 3551A20156B 3551A20154B 3551A20154A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230A20051A 5230A20052A 5230A20052B R 159901 VANE HORIZONTAL 5990A20048A 5990A20049A 5990A20071A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A10157J 4995A90168M 4995A90168L R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 641 1A20015H 641 1A20047B 641 1A20047A R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20073L 6711A20077T 6711A90032T R 268712 PWB
31. 50140 GROMMET 4022U LO05A 4022 0054 R 552111 TUBE ASSEMBLY CAPILLARY 5211A21202B R 552112 TUBE ASSEMBLY CONDENSER IN 5211A10196G 5211 21380 5211A30777B 70 R 552113 TUBE ASSEMBLY CONDENSER OUT 5211A30812A 5211A30778B 0 R 552116 TUBE ASSEMBLY REVERSING 5211A20270M 5211 202700 552201 VALVE CHECK 3A01020H 3A01020H R 552202 VALVE REVERSING 3A02027G 3A02027G R 552203 1 VALVE SERVICE 2H02200H 5220A20005B 5220A20002C 5220A20002C R 552203 2 VALVE SERVICE 2A00392N 2A00392N 2A00392N 2A00392N R 554031 CONDENSER ASSEMBLY BENT 5403A20072Q 5403A20205A 5403A20164E 5403A20164E R 554160 COMPRESSOR SET 2520UMDK2JA 2520UMBK2XA 2520UHFK2DB 2520UHGK2DA R 559010 FAN ASSEMBLY PROPELLER 5900AR1119B 5901A10032A 5901A10032B 5901A10032A R 561410 COIL ASSEMBLY REVERSING 6141A20017A 3A02028Y R 567502 O L P R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A91459P 4995A91006E 4995A90261X 4995A91006E R WOCZZ CAPACITOR DRAWING R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 78 Hoom Air Conditioner Replacement Parts List LOCATION PART No DESCRIPTION REMARKS No 122 s S182CPss S242CPss 5092 s4 237204 PANEL SIDE 3720 10238 R 237205 PANEL SIDE 3720 10239 R 430410 BASE ASSY OUTDOOR 3041420
32. 68714 PWB PCB ASSEMBLY MAIN 6871A20572G 6871A20572H 6871A20572G 6871A20572H R 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20003B 4681A20003B 4681A20003F 4681A20003F R 35211B TUBE ASSEMBLY TUBING 5211A21378E 5211A21378E 5211A21378B 8 R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A39010A 5211A39010A 5211A39010A 5211 39010 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A30756A 5211A30756A 5211A30756B 5211A30756B R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20220A 5421A20220A 5421A20220A 5421A20220A 359011 FAN ASSEMBLY CROSS FLOW 5901A92441E 5901A92441E 5901A92441E 5901A92441E R 668713 PWB PCB ASSEMBLY SUB 6871A20924G 6871A20924J 6871A20924H 6871A20924K R 733010 PLATE ASSEMBLY INSTALL 3301A20020B 3301A20020B 3301A20020B 3301A20020B R WOCZZ CAPACITOR DRAWING 3H01487F 3H01487F 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 71 Replacement Parts List Parts List Indoor LOCATION PART No No 122 sa 182 55 5242 55 5092 541 deeg 131410 CHASSIS ASSEMBLY 3141A20019B 3141 20020 3141A20020C 8 R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531 10307
33. 7110 REMOTE CONTROLLER ASSEMBLY 6711A90023B R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20575A R 268714 PWB PCB ASSEMBLY MAIN 6871A20573B R 342800 BEARING 4280A20004B R 346810 MOTOR ASSEMBLY INDOOR 4681A20048A R 35211B TUBE ASSEMBLY TUBING 5211A21046Y R 352150 DRAIN ASSEMBLY TUBE 5251A20011A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20086A R 359011 ASSEMBLY CROSS FLOW 5901 20037 733010 ASSEMBLY INSTALL 1H00843A R WOCZZ CAPACITOR DRAWING 3H01487K R 668718 PWB PCB ASSEMBLY SUB 6871A20631F 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 73 Replacement Parts List Parts List Outdoor LOGA DESCRIPTION dedi aos REMARKS No S092CG S122CG 5182006 us S122HG u40 237204 PANEL SIDE 3720 10238 3720 10238 3720 10238 237205 PANEL SIDE 3720 10239 3720A10239A 3720 10239 430410 BASE ASSEMBLY OUTDOOR 3041 20079 3041 200720 2H02079T 3041 200720 435301 GRILLE DISCHARGE 3530A10250B 3530A10250B 1H00840C 3530A10250B R 435511 COVER ASSY CONTROL OUTDOOR 3551A30115E 3551A30136A 3551A20030C 3551A30136B R 435512 COVER ASSEMBLY TOP OUTDOOR 3H03465J 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721 20258 3721A10153B 2H02674V 3721 10153
34. A20072N 268712 PWB PCB ASSEMBLY DISPLAY 6871A20574B 6871A20574B 6871A20624B 6871205748 268714 PWB PCB ASSEMBLY MAIN 6871A20572E 6871A20572E 6871A20572E 6871A20572C 342800 BEARING 4280A20004B 4280A20004B 4280A20004A 4280A20004B R 346810 MOTOR ASSEMBLY INDOOR 4681A20151E 4681A20151D 4681A20003B 4681A20151D R 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211 21363 5211A21378E 5211 21363 352115 TUBE ASSEMBLY EVAPORATOR IN 5211 29010 5211 29010 5211A39010A 5211 29010 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211 22110 5211A22110A 5211A30756A 5211 22110 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20218A 5421A20220A 5421A20218A 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901A20017F 5901A92441E 5901A20017F R 668713 PWB PCB ASSEMBLY SUB 6871 20577 6871 20577 6871A20576G 6871 205775 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301 20011 3301A20002A 3301A20011A WOCZZ CAPACITOR DRAWING 3H01487K 3H01487K 3H01487F 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 PESENE TI 242 nso S182HG S242HG nso eeneg
35. CONTROL BOX ASSEMBLY OUTDOOR 4995A20261X 4995A00006E 4995A00006E R WOCZZ CAPACITOR DRAWING 2A00986Y 6210AR2194F 6120AR2194F 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 75 Replacement Parts List 060001 DESCRIPTION REMARKS No S092CG un S242CG usi S182CG M51 430410 BASE ASSEMBLY WELD OUTDOOR 3041 20079 3041A10027C 2 02079 435301 GRILLE DISCHARGE 3530A10059H 3530A20007J 1H00840C R 435511 COVER ASSEMBLY CONTROL OUTDOOCR 3551A30023W 3551A30079M 3551 20030 435512 COVER ASSEMBLY TOP OUTDOOR 3H03465J R 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721 20258 3721A20113A 2H02674V R 437212 PANEL REAR 3720A10172C 3721A20114F 1H00697M R 447910 BARRIER OUTDOOR 4790 100250 4791A20023A 4791AR7047A R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20068K 4681A20028T R 549610 MOUNT ASSEMBLY MOTOR OUTDOOR 4961 20017 1 00838 550140 ISOLATOR COMP 4 00982 4 00982 GROMMET 4022U L005A R 552111 TUBE ASSEMBLY CAPILLARY 5211A21143R 5211A30778B 5211A21202B R 552203 1 VALVE SERVICE 5220A20005B 5220A20002C 2H02200H R 552203 2 VALVE SERVICE 5220A20040A 2 00392 2A00392N R 554031 CONDENSER ASSEMBLY BENT 5403A20059F 5403A20164E 5403A20072Q R 554160 COMPRESSOR SET 2520UKAK2CA 2520UHFK2DB 2520UMDK2JA R 559010 FAN ASSEMBL
36. 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 Service Manual 37 Disassembly 2 To remove the Control Box Remove securing screws Pull the control box out from the chassis carefully III Sud AE 5 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 38 Room Air Conditioner SISA Disassembly Unhook the tab on the right inside of the chassis at the same time slightly pull the evaporator toward you until the tab is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left e
37. PCB ASSEMBLY DISPLAY 6871A20574B 6871A20624B 6871A20624B R 268714 PWB PCB ASSEMBLY MAIN 6871A20572E 6871A20572E 6871A20572E R 342800 BEARING 4280A20004B 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20151E 4681A20003F 4681A20003B R 35211B TUBE ASSEMBLY TUBING 5211A21363A 5211A21378B 5211 21378 R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A29010A 5211A39010A 5211A39010A R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A22110A 5211A30756B 5211A30756A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20218A 5421A20220A 5421A20220A R 359011 FAN ASSEMBLY CROSS FLOW 5901A20017F 5901AR2441E 5901A92441E R 668713 PWB PCB ASSEMBLY SUB 6871A20577X 6871A20576H 6871A20576G R 733010 PLATE ASSEMBLY INSTALL 3301A20011A 3301A20002A 3301A20020B R WOCZZ CAPACITOR DRAWING 3H01487K 3H01487G 3H01487F 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 Indoor LOCATION PART No No PESENE TI S092CG 541 S122CG 541 S122HG 541 eeneg 131410 CHASSIS ASSEMBLY 3141A20019B 3141A20019B 3141A20019B R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10307N 3531A10307N 3531 10307 R 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A23004E 3531A23004E 3531A23004F R 135314 GRILLE ASSEMBLY INLET 3531 10339 3531 10339 3531
38. R COMPRESSOR GAS SIDE 2 Cooling amp Heating Models INDOOR UNIT OUTDOOR UNIT lt _ CHECK VALVE LIQUID SIDE Heating Model only lt EVAPORATOR CONDENSER REVERSING VALVE Heating Model Only Service Manual 47 Troubleshooting Guide 2 way Valve Liquid Side 3 way Valve Gas Side Hexagonal wrench 4mm Flare nut u Open position Closed position To Z7 piping connection To outdoor unit Valve cap Open position Closed position Pin Flare nut piping i Service Service port cap port To outdoor unit Works Shaft position Shaft position Service port Shippin Closed Closed Closed pping with valve cap with valve cap with cap Air purging Open Closed Open 1 Installation counter clockwise clockwise push pin or with vacumm pump Operation Open Open Closed with valve cap with valve cap with cap Pumping down Closed Open Open 2 Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open _ Open 3 Servicing with charging cylinder Gas charging Open Open _ Open 4 Servicing with charging cylinder Pressure check Open 9 Servicing Open Open with charging cylinder Gas releasing Open 6 Servicing Open Open with charging cylinder 48 Air Cond
39. R22 660 R22 Airflow Direction Control Up amp Down 0 0 0 Airflow Direction Control Left amp Right K K K Chaos Wind 0 0 0 Timer 24Hr ON OFF 24Hr ON OFF 24Hr ON OFF 7Hr OFF Self Diagnosis 0 0 0 0 Remocon L C D wireless L C D wireless 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 1 2 12 7 1 2 12 7 1 2 12 7 Sleeping Operation 0 0 X Drain Hose 0 0 0 0 Connecting Cable 1 0mm x 3 1 0mm x 3 0 75mm x 2 Power Cord 16 Hoom Air Conditioner 1 0mm 1 0mm Table 2 Item Model Name Unit 182CG 182CP 242CG 242 Product Specifications S182HG S242HG Cooling Capacity Btu h Moisture Removal l h 18 000 24 000 18 500 19 800 24000 26 400 1 8 2 9 1 8 2 9 Power Source 6 V Hz 10 220V 60Hz 10 220V 60Hz 1 10 220V 60Hz 12 220V 60Hz Air Circulation Indoor m min Outdoor 13 15 13 15 42 42 42 42 Indoor Noise Level Outdoor dB 3 42 45 42 45 56 56 56 56 Input W 1 950 2 350 1 960 1 810 2 600 2 550 Running A 8 9 11 0 9 8 5 12 11 5
40. SSEMBLY BENT 5403A20059F 5403A20198M 5403A20197H R 554160 COMPRESSOR SET 2520UKAK2CA 5416A20013V 5416A20013V R 559010 FAN ASSEMBLY PROPELLER 5900AR1266C 5901A10055A 5901A10055B R 567502 6750U L039A 6750A30001Q 6750A30001Q R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A10162B 4995A90441D 4995A90441C R WOCZZ CAPACITOR DRAWING 6120AR2194H 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 77 Replacement Parts List LOCATION DESCRIPTION REMARKS No S182CG 552 S182HGss S242CGss S242HG 55 430410 BASE ASSEMBLY WELD OUTDOOR 2H02079T 3041A10027C 3041A10027C 3041A10027C R 435301 GRILLE DISCHARGE 1H00840C 3530A20007J 3530420007 3530A20007J R 435511 COVER ASSEMBLY CONTROL OUTDOOR 3551A20030C 3551A30079N 3551A30079M 3551A30079N R 435512 COVER ASSEMBLY TOP OUTDOOR 3H03465J R 437210 PANEL ASSEMBLY FRONT OUTDOOR 2H02674V 3721A20260A 3721 20260 3721A20260A R 437212 PANEL REAR 1H00697M 3721A20114F 3721A20114F 3721 20114 R 447910 BARRIER OUTDOOR 4791AR7047A 4791A20023C 4791A20023A 4791A20023C R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20028T 4681A20028T 4681A20028T R 549610 MOUNT MOTOR 1H00838A 4961A20017B 4961A20017B 8 R 550140 ISOLATOR COMP 4H00982E 4H00982E R 5
41. Y PROPELLER 5900AR1266C 5901A10032B 5900AR1119B R 567502 O L P 6750U L039A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A10162B 4995A20261X 4995A91459P R WO0CZZ CAPACITOR DRAWING 6120AR2194H 2A00986Y R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 76 Hoom Air Conditioner Replacement Parts List LOCATION PART No DESCRIPTION REMARKS No S092CG 541 S122CG sat S122HG sa 237204 PANEL SIDE 3720 10238 3720 10238 R 237205 PANEL SIDE 3720A10239A 3720A10239A R 430410 BASE ASSEMBLY WELD OUTDOOR 3041 20079 30414200720 30414200720 R 435301 GRILLE DISCHARGE 3530A10059H 3530A10250B 3530A10250B R 435511 COVER ASSEMBLY CONTROL OUTDOOR 3551A30023W 3551A30136B 3551A30136B R 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721A20258A 3721A10153B 3721A10153B R 437212 PANEL REAR 3720A10172C 3530A10251B 3530A10251B R 447910 BARRIER OUTDOOR 4790A10025D 4790A10057B 4790A10057B R 546810 MOTOR ASSEMBLY OUTDOOR 4681A20068K 4681A20004D 4681A20004D R 549610 MOUNT MOTOR 4960A10013A 4960A10018B 4960A10018A R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H00982E R 552111 TUBE ASSEMBLY CAPILLARY 5211A21143R 5211 21143 R 552203 1 VALVE SERVICE 52204200058 5220A20005B 5220A20005B R 552203 2 VALVE SERVICE 5220A20040A 2H01890P 2H01890P R 554031 CONDENSER A
42. am 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 More than 1 10 A CAUTION Install the indoor unit the where the height from the floors more than 2 3 meters Clearance cm Grade A B 5K 28K 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 Do not place 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 Select a place so that the warm air and noise from the air conditioner do not disturb neighbors than 60 a More than 10cm More than 10cm e More than 70cm 18 Room Air Conditioner Rooftop Installations f the outdoor unit is installed on a roof structure be sure to level
43. an PTC N Nano Plasma F A changeove Autoclean 4way PTC P Nano Plasma F A changeove A clean 4way Low A PTC Q Negative ION A Clean R Nano Plasma Negative ION A Clean S 4way Nano Plasma F Negative ION Healthy dehumidification A Clean T Nano Plasma 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 Type Code of Model Meaning 1 Producing Center A Z Chang won R22 N India Refrigerant Chang won R410A Z Brazil Chang won R407C D Indonesia T China X Mexico 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 220V 50Hz 3Phase A Z 2 220V 60Hz B 208 230V 60Hz 3Phase 3 208 230V 60Hz 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 4
44. d 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 9 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 54 Hoom Air Conditioner Troubleshooting Guide Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power JE After 10 seconds Main Power 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 Main power s voltage 4 L Voltage applied to the unit 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 da
45. door 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 Service Manual 27 E AIR PURGING 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 p 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
46. ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com Service Manual 79 February 2006 P No 3828A20462F Printed in Korea
47. 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 5 E 2 E 5 0 C2 5 s 5 2 6 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 Service Manual 53 Troubleshooting Guide Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp difference Current approx 0 C less than 80 of rated current All amount of refrigerant leaked out Check refrigeration cycle Temp Difference Refrigerant leakege Clog of refrigeration cycle Defective compressor Temp difference Current approx 8 less than 80 of rated current Operating Current Temp difference less than 8 Current over the reated Excessive amount of refrigerant current Temp difference over 8 C Normal NOTICE Temperature difference between intake and discharge air depends on room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature an
48. er Schematic Diagram Indoor Unit Models 9k 12k 18k 24k Cooling only Model _ WIRING DIAGRAM CONDUCTIVE gt ENCLOSURE MAIN PWE ASM nes OPTION PWB ASM TRIAC CN MOTOR 1CN UID CN OPTION CN BR BK Plained CN LR 4 8 E FUSE 250V 2 CN DISP1 CN DISP2 ICN 12V CN HVB z GN YL CN N2 DISPLAY PWB ASM P No 3854A20427C Models G122C sg F 0 BR BL GN YL ij Y N v Y v TO INDOOR UNIT P No 3854A20481B C ENCLOSURE MAIN PWB ASM MOTOR ONLY OPTION PWB ASM TRIAC L CN MOTOR CN U D CN OPTION BR BK Plained 1 KT 4 Ee q gt FUSE 250V T2A 5 RY 4WAY CN N2 CN DISP1 CN DISP2 CN 12V CN HVB o C CN 4WAY RY FAN DISPLAY PWB ASM P No 3854A20427B Service Manual 41 Schematic Diagram Outd
49. ged depending upon the buyer s request GCSC WEBSITE http biz LGservice com 70 Hoom Air Conditioner Parts List Indoor Replacement Parts List LOCATION PART No No 818200 55 S182HG ss 524200 ss 5242110 551 131410 CHASSIS ASSEMBLY 3141200200 3141200200 3141200200 3141200200 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A20252U 3531820252 3531A20252U 3531A20252V 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A23006B 3531 23006 3531A23006B 3531230060 135314 GRILLE ASSEMBLY INLET 3531A20298B 3531A20298B 3531A20298B 3531A20298B R 135516 COVER ASSEMBLY MOTOR 3551A20154A 3551A20154A 3551A20154B 8 R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A 4681A20055A R 152302 FILTER MECH A C 5230A20052B 5230A20052B 5230A20052B 5230A20052B R 159901 VANE HORIZONTAL 5990A20071A 5990A20071A 5990A20071A 5990A20071A R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A11008M 4995A11008J 4995A11008K 4995A11008L R 263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323A20004A R 264110 POWER CORD ASSEMBLY 6411A20047A 6411A20047A 6411A20047B 6411A20047B R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90032T 6711A20128E 6711A90032T 6711A20128E R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20681F 6871A20681D 6871A20681F 6871A20681D R 2
50. ges and the fins on the condenser and evaporator Do not install the product on a defective instal sure the installation area does not lation stand deteriorate with age It may cause injury accident or damage to the f the base collapses the air conditioner could fall product with it causing property damage product failure and personal injury 6 Hoom Air Conditioner Safety Operation not turn the air conditioner OFF by Use a dedicated outlet for this appliance 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 There is risk of fire or electrical shock 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 There is risk of electric shock or fire There is risk of fire electric shock or product dam age CAUTION B installation
51. hole through the wall for piping connections must be done safely o A 2 3 3 Installation plate D af 0 4 0 70 Left rear piping Right rear piping C de d 4 Installation plate LL a 4 m 70 70 Left rear piping Right rear piping SR2 12K CHASSIS Distance mm Grade A B C D 7K 9K 12K 75 65 105 65 18K 24K 105 65 260 65 SR2 12K 0 40 20 40 Installation Drill the piping hole with a 70mm 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 u mE 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 Fix Telephone Control Cord Wire inside Control box so as not to disconnect Close the Front Grille Remove the rubber stopple in the desired drain direc tion Insert drain hose into the handle of drain pan and join drain hose and connecting hose according to the figure by Adhesive AES a Only the desired direction Connecting part Drain
52. iance pause key is input by the remote control the long beep sounds 34 Hoom Air Conditioner Operation Display Functi 1 Heating Model 2 Cooling Model Operation Indicator Operation Indicator O Cooling Soft Dry Fan Cooling Soft Dry Fan Heating Indicator Compressor on Indicator DOOR Hot start Deice Self diagnosis Error Error Display LED Code indoor body oneldtion LED Error contents SVC check point Indoor room temperature Indoor Thermistor i once thermistor open short assembly check Indoor pipe temperature M 3sec ssec PI 3666 thermistor open short Service Manual 35 Operation The controls will look like the following START STOP BUTTON Operation starts when this button is pressed and 0 transmitter stops when the button is pressed again 2 OPERATION MODE SELECTION BUTTON ra Used to select the operation mode 3 ROOM TEMPERATURE SETTING BUTTONS 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 4 3 speed cooling operates super high fan speed in cooling mode 4 6 CHAOS SWING BUTTON 2
53. itioner Pumping Down J ASQ N Gas side L Purge the air Troubleshooting Guide Outdoor unit 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 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 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 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 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 410 is 1 6 times higher than that of R 22 Thus the high press
54. l 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 1 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 A Flare nut Pipes Indoor unit tubing Tighten the flare nut with a wrench Indoor unit tubing Outside diameter Torque mm inch 06 35 1 4 1 8 09 52 3 8 4 2 912 7 1 2 5 5 215 88 5 8 6 6 219 05 3 4 6 6 When extending the drain hose at the indoor unit install the drain pipe Vinyl tape narrow Adhesive Wrap the insulation material around the con necting portion Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material
55. lay Check point COMP ON COMP OFF Between Micom No 59 and GND DC5V DCOV Between IC01M No 15 Below DC 1V and GND app About DC12V 0 Turn Main Power 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 Service Manual 57 Troubleshooting Guide 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 0 Check the related circuit of indoor Fan Motor The pin NO 58 of Micom and the part for driving TRIAC the input and output signal of IC01M PIN NO 1 16 Check the pattern Check the TRIAC 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 s 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 About AC 50V over TRIAC is not damaged TRIAC Check 58 Hoom Air Conditioner Troubleshooting Guide When Vertical Louver does not operate Confirm tha
56. mage Varistor ZNRO1J a Check the connection housing for contacting Connector related to CN NI RY COMP NO 3 Connector related to CN MOTOR Connector contacting of Outdoor Fan Compressor Display PCB Assembly Check E Main PCB Board Operation Check Items Content Remedy lt SMPS Transformer Indoor unit Input Voltage About AC220V 240V 10 Check the power voltage lt Replace Trans Output Voltage CO3D About DC12V C01D 7805 Output e DC 5 Replace IC01D Indoor Outdoor unit ICO1A KIA7036 Reset IC Voltage of IC No 1 Replace faulty parts OSCO01B 8MHz DC 4 5 over and Soldering condition Service Manual 55 Troubleshooting Guide The product is not operate with the remote controller Turn on Main Power While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped E 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 Cause by the remote control Caused by other parts except the remote control When the mark 4 is displayed in LCD screen replace battery JL Check the connecting circuit be
57. mpressor ON Temp Setting Temp Compressor OFF Temp 2 Setting Temp 3 C While in compressor on the indoor fan is off when the indoor pipe temp is below 20 when above 28 it operates with the low or setting airflow speed When the indoor pipe temp is between 20 and 28 it oper ates with Super Low while in sleep mode with the medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33 C when above 35 C it operates with the low airflow speed II 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 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 indoor pipe the present temperature of indoor pipe according
58. nd of the cross flow fan from the self aligning bearing Service Manual 39 Electric Co Heat Pump Model LED E Schematic Diagram Schematic Diagram AC PART L020 00 10 R TP wen lt ae NOTE 1 The unit of undefined resistance is ohm 1 81 5 2 The unit of undefined capacitors is uF Co
59. ndoor 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 CAUTION The above circuit diagram is subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by referring the wiring diagram CAUTION e If a 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 CAUTION The power cord connected to the A unit should be complied with the following specifications Type B approved by HAR or Grade 5k 9k 12k 14 18 24k 28k 30k 32k 36k 38k 10 10 15 25 25 5 5 Unit A Indoor Indoor Indoor Indoor Outdoor Outdo
60. nneror type CONMECTORE gen 88 0 ESCH UR ES Ke spe Rer MOTOR 40008 FAN i 1 bo a 2 m JL kr Neq dh Den Pirar nen 3 l T dk 1 Tronsmitter MAR ih E L DISP AY KID65004AF obse ES DECHE JE 7 ma Zei Sat al MI dk T 3 E R I 515 5 z dl rex mcr de Tay sene tT HE 2 9 1 2 2 xi ABE 1 T AAT ch 8 iv nasa ier 9 818 8 TIR 1 receiver se s s 5 op 0 RE 1 2 2 2 d ss 1 Force DISPLAY BARE PC8 6870A90240A DISPLAY ASM 6871420574 EEN ane 2 SENT V Et SES IOUSON SCP TRAY EEPROM IC 2 55 1 De jm op ei use resi 1 SIS CENT don t use this use resistor 10K 2012 2 pom oe 5 OR4H e 5 DEn 7 1h 2 OUT 3 LX EP e L 7 wc ona e BARE PCB 6870A90238A ASM PCB 6871A20572 miwon polle Lud 40 Room Air Condition
61. ol mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Jet Cool Mode Operation H P Model e 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 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further Forced Operation Operation procedures when the remote control can t be used The operation will be started if the power button is pressed H you want to stop operation re press the button 1 Heat pump Model Cooling Model Room Temp gt 24 21 lt Room Temp lt 24 Room Temp lt 21 Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High High Setting Temperature 22 22 23 24 While in
62. on User Selection ON OFF 1 Operation Sequence Press 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 Operation l Operation lt 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 When the intake air temperature reaches 0 5 C below the setting temp the compressor and the
63. on will cause harm or damage The seriousness is classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury ACAUTION This symbol indicates the possibility of injury or damage to properties only Meanings of symbols used in this manual are as shown below Be sure not to do Be sure to follow the instruction 7 A WARNING installation Do not use damaged power cords plugs or a Always use the power plug and socket with the loose socket ground terminal There is risk of fire of electric shock There is risk of electric shock Zi C 2 Z V IN C Install the panel and the cover of control box Do not modify or extend the power cord securely There is risk of fire of electric shock 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 There is risk of fire electric shock explosion or There is risk of fire electric shock explosion or injury injury Be cautious when unpacking and installing the For installation always contact the dealer or product an Authorized service center Sharp edges could cause injury Be especially care There is risk of fire electric shock explosion or injury ful of the case ed
64. oor 24 Connecting the cable between indoor unit and outdoor unt 25 Connect the Cable to the Indoor Unit oye nies ode oro eege Ee 25 Connect the Cable to the Outdoor Unit s s icu oet er ett re hetero 26 Checking the drainage and forming the pipings nasa anan 27 Checking ___L __ _ _ _ _ __ _ _ _ 27 S oe e ee AM E 27 28 GC E 28 VU PUMP _ 22_ 7 28 Test RUNNING 30 31 _ _ _ _ _ _ _ ____ _ 31 35 weave T m 35 Hemote Control Operations 36 a M 37 E E E E E E 37 56 16 EE 20 Seege A0 Mang Diagram ss te Drs eap 41 Components door toda ad feti 45 Troubleshooting 3 47 Refrigeration Cycle Diagram o etii spose ied 47 2 way 3 way Valve TP S 48 54 55 Exploded Me rm 62 Replacement Parts List
65. oor Unit Models 9k 12k Cooling only Model WIRING DIAGRAM CAPACITOR Cel I II BLL GNYLI TERMINAL 2 N _ BLOCK BL eut b TO INDOOR UNIT P No 3854A20481B Models 12k Heat pump Model WIRING DIAGRAM CAPACITOR 92 REVERSING VALVE BL YL TERMINAL 2N 3 4 Brock ci TO INDOOR UNIT P No 3854A20481A 42 Room Air Conditioner Models 18k Cooling only Model WIRING DIAGRAM TERMINAL BLOCK TO INDOOR UNIT 3854A20123H Models 18k 24k Heat pump Model WIRING DIAGRAM T B 2 TERMINAL TO INDOOR UNIT 3854A20167A Schematic Diagram Models 24k Cooling only Model WIRING DIAGRAM OPTION lt De rts 8866 TERMINAL BLOCK TO INDOOR UNIT 3854A20167B Service Manual 43 Schematic Diagram MAIN P W B ASSEMBLY e TOP VIEW FUSE 250VAC CN L1 nm O 95555 259255
66. or Cable H05VV F HO5VV F H05VV F H05VV F HOSRN F HO5RN F NORMAL CROSS SECTIONAL AREA 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 COS NORMAL CROSS SECTIONAL mm AREA 0 75mm NORMAL Grade CROSS SECTIONAL 5k 12k 14k 18k 24k 28k AREA 1 0 1 5 25 Cable TypelB Haut HORN F HO7AN F Service Manual 25 Connecting the cable between indoor unit 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 5 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 5bk 14k 18k 24k 28k 30k 32k 36k 38k A t5 20 3 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
67. outdoor fan stop When it reaches 0 5 above the setting temp they start to operate again Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp 2 Setting 0 5 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 lt Intake Air Temp 26 C Intake Air Temp 1 C 18 lt Intake Air lt 24 2 Intake Air 0 5 Intake Air lt 18 2 18 C Service Manual 31 While in compressor off the indoor fan repeats low airflow speed and pause While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidification operation and 4 min compressor off repeat Compressor ON Temp 2 Setting 0 5 Compressor OFF Temp gt Setting Temp 0 5 C In 10 min dehumidification operation the indoor fan operates with the low airflow speed Heating Mode Operation When the intake air temp reaches 3 above the setting temp the compressor is turned off When reaches the setting temp the compressor is turned on Co
68. peed of the indoor fan is set to high medium low or chaos auto by the input of the airflow speed selection key on the remote control Sleep Timer Operation When the sleep time is reached after 1 2 3 4 5 6 7 0 cancel hr is input by the remote control while in appli ance operation the operation of the appliance stops While the appliance is on pause the sleep timer mode cannot be input While in cooling mode operation 30 min later since the start of the sleep timer the setting 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 If the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation 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 Co
69. procedure pumping down pin 52 Hoom 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 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 charged with R 410A Pay attention not to charge R 22 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
70. t piping Good case For left piping Follow the instruction below Drain hose Wrap with Press on the upper side of clamp vinyl tape wide the pipings and the drain hose across the back of the chassis Unfold the tubing to downward slowly Piping for passage through piping hole Set the pipings and the drain 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 Service Manual 23 Flaring work and connection of piping CAUTION Bad case 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 09 52 3 8 42 12 7 1 2 5 5 015 88 5 8 6 6 019 05 3 4 6 6 24 Hoom Air Conditioner Outdoor unit Gas side piping Bigger diameter diameter Torque wrench Connecting the cable between indoor unit and outdoor unit l Connecting the cable between indoor unit and outdoor unit Connect the cable to the i
71. t the Vertical Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the Vertical Louver with hands Normal Check the connecting condition of CN U D Connector Check the soldering condition on PWB of CN U D Connector Check the operating circuit of the Vertical Louver e Confirm that there is DC 12V between pin SXRED of CN U D and GND Confirm that there is a soldering short at following terminals Between 60 69 62 and 63 of MICOM Between Band of ICO1M Between d 43 42 and p of ICO1M ue If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver Service Manual 59 Troubleshooting Guide When Heating does not operate 60 Turn ON Main Power Operate Heating Mode XL by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2 C at least JL In heating Mode the indoor fan operates in case the pipe temperature is higher than 28 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 10 25 Check the indoor pipe temperature is disconnected or not about 5KQ at 25
72. 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 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 or higher defrost con trol is completed and heating mode operation is carried out While in defrost control if the defrost time determined before the start of defrost control is 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 While in defrost control the compressor is on and the indoor fan the outdoor fan and the 4 way valve are off 32 Hoom Air Conditioner Operation Airflow Speed Selection lt The airflow s
73. tween the remote controller MICOM No amp R16 1 5k IR LED TR R17 19 or MICOM No 67 R1 1 5k IR LED TR R2 1Q Check the contact of CN DISP1 connector JL Check Display PCB Assembly Voltage between CN DISP1 DC 5V 56 Hoom Air Conditioner ud Check point e Check the connecting circuit between CN DIS1 7 R11L 100Q CO1A 100nF MICOM PIN Check Receiver Assembly Troubleshooting Guide Compressor Outdoor Fan are unable to drive Turn on Main Power d Operate Cooling Mode 3k by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1 C at least d When in Air Circulation 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 e Check the indoor temperature sensor is disconnected or not About 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 re
74. ure side gauge of charge set should be used higher pressure gauge of 50kg cm2 range Service Manual 49 Troubleshooting Guide Balance Retrigerant of the 3 way Valve Gas leakage Outdoor unit e Procedure 1 Confirm that both the 2 way and 3 way valves 9 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 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 50 Hoom Air Conditioner Evacuation All amount of refrigerant leaked Troubleshooting Guide Outdoor unit e 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 9 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not mo
75. ve MODEL 18k 24k Btu Heat Pump DIM 24k Btu Cooling Only Model W mm 840 H mm 577 D mm 276 L1 mm 337 L2 mm 64 L3 mm 611 L4 mm 16 L5 mm 156 Service Manual 15 Product Specifications Product Specifications Table 1 ltem Model Name Unit S092CG S092CP 122CG 122HG G122C sn2 Cooling Capacity Heating Capacity Btu h 9 000 12 000 12 000 12 000 12 500 Moisture Removal l h 1 2 1 2 1 2 1 2 Power Source 6 V Hz 10 220V 60Hz 10 220V 60Hz 10 220V 60Hz 10 220 240V 50Hz Indoor Air Circulation Outdoor m min 6 5 8 2 8 2 8 8 9 5 20 22 22 22 Indoor Noise Level Outdoor dB 3 33 41 41 40 48 49 49 49 Cooling Input Heating W Running Cooling Current Heating 5 7 5 4 5 6 5 4 E E R Cooling C O P Heating Btu hW 10 0 10 4 9 6 10 9 Motor Output Indoor Outdoor W 7 14 14 9 5 23 23 23 23 Dimensions Indoor WxHxD Outdoor 840x270x153 840x270x153 840X270X153 900X285X156 575x525x260 717x481x228 717X481X228 717X481X228 Indoor Net Weight Outdoor kg 7 7 7 7 2 25 25 25 25 Refrigerant g 660 R22 650 R22 850
76. ve 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 CAUTION Use vacuum pump equipped with check value applied to be prevented from flowing backward Service Manual 51 Troubleshooting Guide Gas Charging After Evacuation Indoor unit Check valve 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 f 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 f 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
77. website http www 1gservice com LG LG Room Conditioner SERVICE MANUAL MODELS S092CG wo S092CG S092CG 541 S092CP s41 S122CG 5122006 S122CG 1 S122CP 541 S122HG 51226 wo S122HG 54 S182CG wo S182CG us S182CG s 5182 552 S182HG 518216 uso S182HG 551 S242CG 5242C6 uso S242CG 551 5242 551 S242HG ven S242HG uso S242HG 551 S092CG S092CG S242CG ver S242CG usi S182CG S182CG usi G122C sn2 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 Su ea sa oea 3 5 mee 10 Symbols gt gt _ _________ __ _ _ __ _ _ _ ____ _ _ 10 DYN STAD UU 10 MOF Ta 13 Product 631005 5000 7 7V7 16 luci 18 _______ 18 Piping Length and Elevation RE 18 How to Fix Installation EE 19 Drill a Hole in the _ 19 056 19 Flaring work and connection of piping 20 20 Connection of Piping tele 20 Connection of the Pipes Outd
78. 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 24 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 26 Hoom Air Conditioner Checking the and forming the pipings P 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

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