LG HB1803R User's Manual
Contents
1. T iwo m m asna asoo SS acoo azoo oro nm 1 I NOSA EZE ioo s SNVELEBMOd TOW movus Sharon OHNO3A21 I88IS esis TAEDA 98 OQ Ov NO OQ ov NO Nj 45 T 2 ow 8 Wa SF x e m E pi P R 29 i00 ove oes f icu as AE 1000 od z la JE CDS gg rom M L 1 osoa oroa T ip 69 e 3 EEE OON 558 o o x o dund EH AVMY NO 2 5 5 66 5 EER 100 oz x x o x UO o om es NWO o Tee e se P O E n T ZHLNO zor AVMP AU POW2. 6 DESCRIPTION Lidl REMARK LWP1820PEL 130410 BASE ASSEMBLY WELD SINGLE 3041A20023B R 130910 CABINET ASSEMBLY SINGLE 3091AR6057H R 135303 GRILLE INLET 3530A10080A R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20095A R 135500 COVER CONTROL BOX 3550A30122A R 147581 LOUVER HORIZONTAL 4758A30022A R 147582 1 LOUVER VERTICAL 4758A30023A R 147582 2 LOUVER VERTICAL 4758A30023B R 148000 BRACE 4800A20001A R 149980 SHROUD 4998A10013A R 152312 FILTER ASSEMBLY AIR CLEANER 5231A20008A R 237200 PANEL CONTROL 3720A20156A R 238310 ESCUTCHEON 3831A10023C R 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20194T R 263230 THERMISTOR ASSEMBLY 6323A20003P R 263230 THERMISTOR ASSEMBLY 6323A20004E R 264110 POWER CORD ASSEMBLY 3H01307F R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20034Z R 268712 PWB PCB ASSEMBLY MAIN DC 6871A20187B R 268714 PWB PCB ASSEMBLY MAIN AC 6871A20167F R 346811 MOTOR ASSEMBLY SINGLE 4681AR6033Y R 349001 DAMPER VENTILATION 4900A20004A R 349480 ORIFICE 4948A30008A R 349600 MOUNT MOTOR 4960AR1596A R 35211A TUBE ASSEMBLY SUCTION OUTDOOR R 352111 TUBE CAPILLARY 5425AR3147H R 352115 1 TUBE FORMED EVAPORATOR 5210A21099N R 352115 2 TUBE FORMED EVAPORATOR 5210A21099P R 352390 1 AIR GUIDE ASSEMBLY 5239A20002C R 352390 2 AIR GUIDE ASSEMBLY
3. Model ALL MODELS Dimension W mm inch 660 25 s2 H mm inch 428 16 7 s2 D mm inch 680 26 7 32 Service Manual 5 Specfications E Product Specifications MODELS LWI800PR LW1800ER LWP1820PDL LW1804ER LW1800ERZ3 LWP1830WAL LWIS00PRY3 LWP1820PEL LWCT82PLMMO LWC212PLMMO LWC183PLIDI HBLG1803R ITEMS LW1800PRZ3 POWER SUPPLY 10 208 230V 60Hz 10 115V 60Hz 10 220V 60Hz 10 2201 60 7 10 208 230V 60Hz CAPACITY BTU h 18 000 15 000 18 000 24 000 17 500 18 000 INPUT W 1 670 1 300 1 930 1 890 2 440 1 620 1 670 COOLING RUNNING CURRENT 7 5 7 8 12 9 0 8 8 11 5 10 8 9 0 8 3 E E R BTU W h 10 8 11 5 9 5 9 8 8 0 7 5 9 7 9 7 CAPACITY BTU h 18 000 INPUT W 1 930 HEATING RUNNING CURRENT A 9 0 E E R BTU W h 9 5 OPERATING INDOOR 26 7 DB 19 4 WB CONDITION OUTDOOR 35 DB 23 9 WB REFRIGERANT R 22 CHARGE 8009 28 2 oz 6709 23 6 oz 7009 24 7 02 7309 25 7 02 765g 27oz EVAPORATOR 3 ROW 11 STACKS LOUVER FIN TYPE 2 ROW 11 STACKS LOUVERFIN TYPE 3 ROW 11 STACKS LOUVER FIN TYPE CONDENSER 2 ROW 19 STACKS L BENDED 2 ROW 19 STACKS L BENDED FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TY
4. LOCATION DESCRIPTION REMARK Ne LWP1820PDL LWC182PLMMO LWC212PLMMO 130410 BASE ASSEMBLY WELD SINGLE 3041A20023B 3041A20023B 30414200232 R 130910 CABINET ASSEMBLY SINGLE 3091AR6057H 3091AR6057H 3091AR6057H R 135303 GRILLE INLET 3530A10080A 3530A10080A 3530A10080A R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20095A 3531A20095D 3531A20095D R 135500 COVER 3550A30122A 3550A20217A 3550A20217A R 146812 MOTOR ASSEMBLY SYNC 2H01102A 2H01102A R 147581 LOUVER HORIZONTAL 4758A30022A 4758A30022A 4758A30022A R 147582 1 LOUVER VERTICAL 4758A30023A 5210A21099L R 147582 2 LOUVER VERTICAL 4758A30023B 5210A21099M R 148000 BRACE 4800A20001A 4800A20001A 4800A20001A R 149980 SHROUD 4998A10013A 4998A10013A 4998A10013A R 152302 FILTER ASSEMBLY AIR CLEANER 5231A20008A 5231A20008A 5231A20008A R 152312 PLASMA FILTER ASS Y 3720 10112 R 237200 PANEL CONTROL 3720A20156A 3720 10112 3831A10021P R 238310 ESCUTCHEON 3831A10023B 3831A10021P R 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20194U 4995A20330B 4995A20330A R 263230 THERMISTOR ASSEMBLY 6323A20004E 6323A20004E 6323A20004E R 264110 POWER CORD ASSEMBLY 3H01307F 3H01307G 3H01307H R 268712 PWB PCB ASSEMBLY MAIN DC 6871A20187C 6871A20325C 6871A20325C R 268714 PWB PCB ASSEMBLY MAIN AC 6871A20167G 6871A20271C 6871A20271C R 34
5. 55 ox To bg m an aro ZZ ao aroa S3 vovio g ipu Em azo E lo quot E vet auos fonz Tow ainoaaler 18915 Y M fto iT a AED xd ND 7560 SERA 10 ND uoo astu deno x AM t CAYAVEO 9661 AVM ND E oy dm a z 8 erTIEPEEIELEEEITe Sar 2955 4535 EE 100855701807 Tues gueos 2160 Teves ebd yue s PB 705 Vis 10031 Term H NIND WOOW CUJeo oozs NOD NO 4 4 8 8 8 8 e e Te JO Te Te s 5 060 0005 SAH ND cL bo ov cod pom HLN Woda t 1 z Em 909 1 THI ND ar 000 4200 NIVIN YOLDA Service Manual 23 Schematic Diagram
6. Check the RY COMP Check the wiring Replace 01 Wait 3 Minutes Diagram Possible Trouble 3 Is the wire connection of NO Replace MAIN PCB Assy The compressor always operate RY COMP OK pes Check the RY COMP 32 Room Air Conditioner Connect LEAD Wire to RY COMP again NO Possible Trouble 4 FAN does not operate NO Troubleshooting Guide Is the voltage NO 1 or 2 or 4 NO Replace 01 Is the voltage NO 16 or 15 or 13 of ICO1M OV Check the RY Hi or RY Med or RY Lo Check the wiring diagram Possible Trouble 5 The function of Energy Saver does not operate Is the mode NO Replace 01 key pushed once more from cool mode Is the voltage No 3 of CN AC DC of AC PCB Ass y DC 5V YES Reference to OWNER S MANUAL Set the mode key to Energy Saver mode Check the Energy Saver mode key Check the pattern of AC amp DC PCB Service Manual 33 Troubleshooting Guide Possible Trouble 6 Remote controller does not operate Is the voltage of Battery NO Replace the battery over 2 3V s the voltage No 10 NO of CN AC DC on DC PCB Ass y DC 5V gt
7. ZEE IV V Figure 23 8 Compressor 1 Remove the cabinet Refer to section 2 2 Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery sys tem install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system 3 Remove the overload protector Refer to sec tion 7 4 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections 5 Remove the 3 nuts and the 3 washers which fasten the compressor Remove the compressor See Figure 24 Re install the components by referring to the removal procedure above Figure 24 18 Hoom Air Conditioner 9 Capacitor 1 Remove the control box Refer to section 3 2 Open the top cover from the control box See Figure 25 3 Pull out the capacitor from the control box 4 Disconnect all the leads of capacitor terminals 5 Re install the components by referring to the removal procedure above 10 Power Cord 1 Remove the control box Refer to section 3 2 Open the top cover from the control box Refer to section 9 3 Disconnect the front panel from the control box See Figure 26 4 Disconnect two leads from the capacitor and relay 5 Pull out the power cord 6 Re install the component by referring to the above removal procedure above Use only one ground
8. 6871 20187 6871A20185A 6871 20185 R 238310 ESCUTCHEON 3831A10020B 3831A10023A 3831A10020B R 268714 MAIN PCB ASS Y 6871A20167B 6871A20167D 6871A20167E 6871A20167B R 263230 THERMISTOR ASS Y 6323A20004E R 264110 POWER CORD ASS Y 6411A20011K 6411A20011J 6411A20011K R 346811 MOTOR ASS Y 4681AR6033V 4681AR6033X 4681AR6033V R 349001 VENTILATION DAMPER 4900A20004A R 349480 ORIFICE 4948A30008A R 349600 MOUNT MOTOR 4960AR1596A R 352111 TUBE ASS Y CAPILLARY 5211AR3332Z 5211A30275F 5211AR3399L R 352113 DISCHARGE TUBE 5211A30066N 5211A30066R 5211A30066N R W52106 1 TUBE FORMED EVAPORATOR 5210A21099A 5210A21099E R W52106 2 TUBE FORMED EVAPORATOR 5210A21099B 5210A21099F R 35211A SUCTION TUBE ASS Y 5211A20441A 5211A20441C 5211A20441A R 352390 1 AIR GUIDE ASSEMBLY 5239A20002A R 352390 2 AIR GUIDE ASSEMBLY 5239A20003A R 354210 EVAPORATOR ASS Y 54214200914 5421A20091C R 567502 OVERLOAD PROTECTOR 6750U L025A INTERNAL 6750U L025A R 550140 ANTI VIBRATION BUSH 4H00982C R 554031 CONDENSER ASS Y 5403A20062B 5403A20062C R 554160 COMPRESSOR 2520UMBK2EA 2520UMTC2AA 2520UMBK2EA R 559010 FAN 5901A20010A R 359012 TURBO 5901A20009A R W48602 CLAMP SPRING 3H02932C R WOCZZ CAPACITOR 6120AR2194D 0CZZA20001L 6120AR2194D R 267110 REMOTE CONTROLLER 6711 20052 6711A20034G 6711A20052A 6711A20052D R 46 Air Conditioner Replacement Parts List
9. Connect connector exactly OK YES Is the voltage No 40 of Micom Check the PCB pattern DC 5V ves Replace PCB Ass y Service Manual 35 Troubleshooting Guide Possible Trouble 2 The compressor does not operate Is desired Temp set lower than Room Temp 0 5 C NO Select the desired Temp to lower Number Is the voltage No 10 of ICO1M OV Is the voltage NO 9 of 01 DC 12V Is the Unit for 3 minutes Check the RY COMP Replace ICO1M Wait 3 Minutes Check the wiring Diagram Replace AC i PCB Possible Trouble 3 The compressor always operate S Ke wre connection NO e Connect LEAD Wire to s the wire RY COMP again RY COMP OK 9 Check the 36 Room Air Conditioner Possible Trouble 4 FAN does not operate NO Troubleshooting Guide Replace ICO1M Is the voltage NO 1 or 2 or 4 of ICO1M DC 5V ves Replace ICO1M lt Replace the battery Is the voltage NO 16 or 15 or 13 of ICO1M 0V Check the RY Hi or RY Med or RY Lo Check the wiring diagram Possible Trouble 5 Remote controller does not operate Is the voltage of Battery NO over 2 3V s the voltage
10. Check cold air circulation Check outdoor coil for smooth flow heat exchanger amp the fan operation Dirty indoor coil Check gas leakage Heat exchanger Not on separate circuit Malfunction of fan Repair gas leak Clogged of air filter Obstruction at air outlet Unit runs but poor cooling Check heat load increase Clean condenser Check inside gas Replacement of unit if the pressure unit is beyond repair Adjusting of refrigerant charged Correct above trouble Malfunction of compressor Check clogging in refrigera Replacement of tion circuit compressor Satisfactory operation with Repair clogging in refrigera temperature difference of tion circuit inlet amp outlet air 44 50 F 7 10 C Service Manual 29 Troubleshooting Guide Fails to Start Check of power source Check circuit breaker and fuse Check of control switch Gas leakage of feeler bulb setting of thermostat Check of control switch Fan only fails to start Improper wiring Defect of fan motor capacitor Compressor only fails to start Drop of power voltage lt Improper thermostat setting Defect of compressor capacitor Loose terminal connection Irregular motor resistance Q Irregular motor insulation Q Replacement of fan motor Regular but fails to start Capacitor check Improper wiring Replacement
11. zs H zen 4936 ema 5 1 55 LESE CENSOR QOO pans Iz ims D 7 7002557 F gt 4 T ejo T D GRE z Wool rs 6 5 guess e4610 LI 9 7 Tineo ozmns 15 7 7 og 2X inoo no 2 ZMS T E cea RE ip 7 7 OAE iT s SAHNO sas auem HL3dld glos ee t HA pod T z Si 59 Z0 082MNS E mm ZHL NO z E 5 od Te Lem wi 0 x Weise 10050 KIZ 6 x Wesen a HL NOOH 0 2 2 viod 1T ele en L 3131 NO 24 Air Conditioner Schematic Diagram MODEL LWP1820PDL LWP1820PEL CN MOTOR CN AC DC CN AC DC DC PCB ASSEMBLY o 127 5 FUSE OB 250V T2AC 2 15 2 IRY COMP A 1 CN HVB 5 a zZ amp E 9 1 EH BK HA BI 9 9 WIRING DIAGRAM 3854AR3563U AC PCB ASSEMBLY AIR FILTER ASSEMBLY MODEL LWC182PLMMO LWC212PLMMO A SOLENOID VALVE ay PEO QP CN AWAY 91 4 1B CAPACITOR e Pj REASWING REV
12. Check the PCB pattern NO Connect connector to Is the connection of CN AC DC exactly CN AC DC OK e Replace Receiver Ass y Possible Trouble 7 It displays abnormally on DC Ass y NO Y e Replace ICO1G Is the IC01G good NO Connect connector Is the connection of to CN AC DC exactly CN AC DC OK Y Does the IC03G Q01G Q02G Q03G for Delux Mode operate normally on DC NO e Replace ICO3G gt Q01G Q02G Q03G for Delux Model PCB Assy Replace the DC Ass y 34 Hoom Air Conditioner Electric Parts Possible Trouble 1 The unit does not operate Troubleshooting Guide Trans input power AC 115V 208 230V for LWL1230WAL Check the Fuse Check the wiring diagram yES Is the Trans output power about AC 14V Is the Trans output shorted Check the AC PCB pattern Replace the Trans Is output Voltage of ICO1D NO DC 12V gt Replace IC01D Replace D02D D05D NO Is output Voltage of ICO2D DC 5V Replace ICO2D Is the reset circuit OK The No 14 of Micom is 5V e Replace IC01A Is the connection between AC and DC NO Y
13. Close valve A 5 With the unit running open valve B and add the balance of the charge Do not add the liquid refrigerant to the Low side b Watch the Low side gauge allow pressure to rise to 30 165 c Turn off valve B and allow pressure to drop d Repeat steps b and c until the balance of the charge is in the system 6 When satisfied the unit is operating correctly use the pinch off tool with the unit still running and clamp on to the pinch off tube Using a tube cutter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos brazing and braze pinch off tube closed Turn off the unit allow it to set for a while and then test the leakage of the pinch off connection Service Manual 21 Disassembly Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pin off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve COMPOUND GAUGE CONDENSER Uu HIGH PRESSURE SIDE varon Q Q GAUGE B CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR LOW PRESSURE SIDE COMPRESSOR EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 30A Pulling Vacuum Figure 30B Charging 22 Room Air Conditioner Schematic Diagram Schematic Diagram x T
14. website http www lgservice com LG Room Aur Conditioner SERVICE MANUAL MODELS LW1800PR LW1800ER LW1800ERZ3 LW1500PR LW1500PRY3 LWP1830WAL LWP1820PDL LWP1820PEL LWC182PLMMO LWC183PLMD1 LWC212PLMMO LW1804ER LW1800PRZ3 HBLG1803R CAUTION e BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions u u ood ei hen ead ee ea ee eda 3 meten tend ond adag ait 3 9 u u opor ooo 7 5 Product Specifications 6 MES CAN AUN OER conecte reser 5 7 Select the Best Location 7 Installation Check usa iad athe Au 7 How to Secure the Drain Pipe 7 Howto Install T 8 Suggested Tool Requirements tate 9 10 enr mM 12 F nction or Controls c gta db NUR 12 Disassembly E 0 16 Mechanical eee roo a a iue E 16 Air Handling Parts tot
15. 5239A20003B R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20091D R 359012 FAN ASSEMBLY TURBO 5901A20009A R 550140 ISOLATOR COMP 4H00982C R 552111 TUBE ASSEMBLY CAPILLARY R 552113 TUBE ASSY CONDENSER OUT 5211A30156B R 552116 TUBE ASSEMBLY REVERSING 5211A30157G R 552202 VALVE REVERSING 3A02027G R 554031 CONDENSER ASSEMBLY BENT 5403A20013R R 554160 COMPRESSOR SET 2520UMDK2DA R 559010 FAN ASSY AXIAL 5900AR1330A R 561410 COIL ASSEMBLY REVERSING VALVE 3A02028K R 566000 SWITCH PRESSURE 6600AG3057B R 567502 O L P R WOCZZ CAPACITOR DRAWING 6120AR2194P R W48602 CLAMP SPRING 3H02932C R Service Manual 47 PART NO DESCRIPTION REMARK LW1804ER LWC183PLMDI BASE ASSEMBLY WELD SINGLE 3041A20023D 3041A20023D 130410 CABINET ASSEMBLY SINGLE 3091AR6057E 3091AR6057E 130910 GRILLE INLET 3530A10080A 3530A10080A 135303 GRILLE ASSEMBLY FRONT SINGLE 3531A20095A 3531A20095A 135312 COVER 3550A20089A 3550A30122A 135500 MOTOR ASSEMBLY SYNC 146812 LOUVER HORIZONTAL 4758A30022A 4758A30022A 147581 LOUVER VERTICAL 4758A20042A 4758A20042A 147582 1 LOUVER VERTICAL 4758A20042B 4758A20042B 147582 2 BRACE 4800A20001A 4800A20001A 148000 SHROUD 4998A10013A 4998A10013A 149980 FILTER ASSEMBLY AIR CLEANER 5231A20008A 5231A200
16. 9 Attach the Window locking bracket with a screw Type C See Fig 13 10 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cab inet Push the grille in until it snaps into place See Fig 14 11 Lift the inlet grille and secure it with a screw Type A through the front grille See Fig 14 12 Window installation of room air conditioner is now completed Screw Figure 11 Figure 12 Figure 13 Figure 14 Installation s Screw Type C Power Cord Screw Type A Window locking bracket Service Manual 11 Operation Operation Function of Designed for COOLING ONLY Built in adjustable Thermistor Powerful and quiet cooling Washable one touch filter Slide in and slide out chassis for the simple instal Compact size lation and service Equipped with reliable and efficient rotary Low air intake top cooled air discharge compressor DISPLAY REMOTE CONTROL LW1800PR LW1500PR LW1500PRY3 LW1800PRZ3 LWP1830WAL LW1804ER COOL DRY COOL FAN DRY em WW NV AP SS INDOOR 0 66 se J ENERGY 2 SAVER AIR PURIFIER AIR PURYFIER AUTO CLEAN RESTART FILTER Precaution The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and t
17. WSY gt AL E asnd wzL nosz e lt 9NIMS U AM C3H AH IH AH e e 2 Display P C B Assembly MODEL LW1800PR LW1500PR MODEL LWC182PLMMO LWC212PLMMO LWP1830WAL LW1800ERZ3 HBLG1803R 0 0 5 6 0502 p 9075 232 69 sa 910 5 E S i Q 1021 8 S 013345 AS Sz ns s s 69 037 660601289 WSY 82d eda HP Osagai 02900640289 3 9EDHS una y 920 5 NMOG dWAL j k C B IC03G 1534835 88 NO N rer dial 26 Air Conditioner Schematic Diagram MODEL LW1800ER LWP1820PDL LWP1820PEL 88 SEGMENT B7iA20187 aaa 2 20 o3 I 2 lt lt 066 e v eR05G 25 LEDS LEDI 83 6 ROIL j jis 2 5 amp E SAVER LEDS MODEL LW1804ER LW1500PRY3 LW1800PRZ3 LWC183PLMD1 Service Manual 27 Troubleshoot
18. marked hole for ground connection 7 If the supply cord of this appliance is damaged it must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord attached at the unit Disassembly Figure 5 Figure 26 Service Manual 19 Disassembly 11 Motor Remove the cabinet Refer to section 2 Remove the turbo fan Refer to section 4 Remove the fan Refer to section 5 Remove the 4 screws that fasten the motor from the air guide See Figure 27 Remove the motor 6 Re install the components by referring to the removal procedure above See Figure 27 Refrigerating K 12 Condenser CAUTION Discharge the refrigerant system using Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO 1 before venting the Freon Leave the valve in place after servicing the system 1 Remove the cabinet Refer to section 2 2 Remove the 4 screws that fasten the brace Refer to section 4 3 Remove the 5 screws that fasten the condenser and shroud 4 After discharging the refrigerant completely unbraze the interconnecting tube at the con denser connections 5 Remove the condenser 6 Re install the components by referring to notes See Figure 28 13 Evaporator Remove the control box Refer to section 3 Remove the air guide upper Refer
19. sure the cabi net slants outward CAUTION Do not drill a hole in the bottom pan The unit is designed to operate with approximately 1 2 of water in bottom pan 4 Pull the bottom window sash down behind the Top retainer bar until they meet 1 Do not pull the window sash down so tightly that the move ment of Frame curtain is restricted Attach the cabinet to the window stool by driving the screws Type B through the cabinet into window stool 2 The cabinet should be installed with a very slight tilt downward toward the outside 10 Hoom Air Conditioner Si Bracket ill Support moe SS T es Bolt 99 8 Lock nut M Screw Figure 5 Cabinet Track hole Support Bracket Carriage bol and lock nut Figure 6 retainer bar Figure 8 Figure 9 Machine screw Type D and lock nut Outer edge u Window si Screw Type B Sash track Screw Type B 5 Pull each Frame curtain fully to each window sash track and pull the bottom window sash down behind the Top retainer bar until it meets 6 Attach each Frame curtain the window sash by using screws Type C See Fig 10 7 Slide the unit into the cabinet See Fig 11 CAUTION For security purpose reinstall screws at cabinet s sides 8 Cut the Foam strip to the proper length and insert between the upper window sash and the lower win dow sash See Fig 12
20. to section 4 Remove the 2 screws that fasten the evapora tor 4 Move the evaporator sideways carefully Refer to section 4 5 After discharging the refrigerant completely unbraze the interconnecting tube at the evapo rator connections Remove the evaporator Re install the components by referring to notes See Figure 29 pon qos 20 Air Conditioner Figure 27 Figure 28 Figure 29 Disassembly 14 Capillary Tube 1 Remove the cabinet Refer to section s2 2 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube See caution above Replacement of the refrigeration cycle 1 When replacing the refrigeration cycle be sure to Discharge the refrigerant system using a Freon recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system 2 After discharging the unit completely remove the desired component and unbraze the pinch off tubes 3 Braze service valves into the pinch off tube ports leaving the valves open 4 Braze the pinch off tubes with Service valves Evacuate as follows 1 Connect the vacuum pump as illustrated figure 30A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclock wise and leave the valves open The vac
21. to this setting and restart the unit Check the continuity of the thermistor Replace the thermistor if the circuit is open Capacitor Discharge capacitor before servicing Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged Compressor Check the compressor for open circuit or ground If open or grounded replace the compressor Overload Check the compressor overload if externally mount ed Replace if open If the compressor temperature is high remove the overload cool it and retest Compressor cycles on Voltage Check the voltage overload If not within limits call an electrician Overload Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Compressor cycles on Fan motor If not running determine the cause Replace if overload required Condenser air flow restric tion Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vac uum cleaner do not damage fins or brush Clean the interior base before reassembling Condenser fins damaged If condenser fins are closed over a large area on the coil surface head pressures will increase causing the compressor to overload Straighten the fins or replace the coil Compressor cycles on overload Capacitor Test capacitor Wiring Check th
22. 01A20010A 559010 O L P 6750U L016A 6750U L016A 567502 WO0CZZ CAPACITOR DRAWING 6120AR2194F 6120AR2194F W48602 CLAMP SPRING 3H02932C 3H02932C 48 Air Conditioner PART NO 6 DESCRIPTION REMARK HBLG183R 130410 BASE ASSEMBLY WELD SINGLE 3041A20023D 130910 CABINET ASSEMBLY SINGLE 3091AR6057E 135303 GRILLE INLET 3530A10146A 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A10201A 135500 COVER 3550A30122A 147581 LOUVER HORIZONTAL 4758A30022A 147582 1 LOUVER VERTICAL 4758A20042A 147582 2 LOUVER VERTICAL 4758A20042B 148000 BRACE 4800A20001A 149980 SHROUD 4998A10013A 152302 FILTER ASSEMBLY AIR CLEANER 5231A20008A 237200 PANEL CONTROL 3720A10112A 238310 ESCUTCHEON 3831A10021F 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20194Y 263230 THERMISTOR ASSEMBLY 6323A20004E 264110 POWER CORD ASSEMBLY 6411A20011K 267110 REMOTE CONTROLLER ASSEMBLY 6711A90019C 268712 PWB PCB ASSEMBLY MAIN AC 6871A20167D 268714 PWB PCB ASSEMBLY MAIN DC 6871A20325A 346811 MOTOR ASSEMBLY SINGLE 4681A20011M 349001 DAMPER VENTILATION 4900A20004A 349480 ORIFICE 4948A30008A 349600 MOUNT MOTOR 4960AR2895B 352111 TUBE CAPILLARY BEND 5210A20492R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A30066N 352390 1 AIR GUIDE ASSEMBLY 5239A20002A 352390 2 AIR GUIDE ASSEMBLY 5239A20003A 3
23. 034 6711A20034F R 44 Hoom Air Conditioner Replacement Parts List PART NO 9 DESCRIPTION REMARK LW1500PRY3 LW1800ERZ3 LW1804ER 130410 BASE ASSEMBLY WELD SINGLE 3041A20023B 3041A20023C 3041A20023D R 130910 CABINET ASSEMBLY SINGLE 3091AR6057E 3091AR6057E 3091AR6057E R 135808 GRILLE INLET 3530A10080A 3530A10080A 3530A10080A R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20095A 3531A20095A 3531A20095A R 135500 COVER CONTROL BOX 3550A30122A 3550A30122A R 146812 MOTOR ASSEMBLY SYNC z R 147581 LOUVER HORIZONTAL 4758A30022A 4758A30022A 4758A30022A R 147582 1 LOUVER VERTICAL 4758A20042B 4758A20042B 4758A20042A R 147582 2 LOUVER VERTICAL 475820042 4758A20042A 8 R 148000 BRACE 4800A20001A 4800A20001A 4800A20001A R 149980 SHROUD 4998A10013A 4998A10013A 4998A10013A R 152302 FILTER ASSEMBLY AIR CLEANER 5231A20008A R 152312 FILTER ASSEMBLY AIR CLEANER 5231A20008A R 237200 PANEL CONTROL 5983A10009K R 238310 ESCUTCHEON 6871A20271A 6871A20167D z R 249950 CONTROL BOX ASSEMBLY SINGLE 3720A10110A 3720A10112A 4995A30010M R 263230 THERMISTOR ASSEMBLY 6871A20323A 6871A20325A 6323A20004E R 263230 THERMISTOR ASSEMBLY 6323A20004E 6323A20004E R 264110 POWER CORD ASSEMBLY 641
24. 08A 152302 PLASMA FILTER ASS Y 152312 PANEL CONTROL 3720A10110A 237200 ESCUTCHEON 2 3831A10020M 238310 CONTROL BOX ASSEMBLY SINGLE 4995A30010M 4995A30010M 249950 THERMISTOR ASSEMBLY 6323A20004E 6323A20004E 263230 POWER CORD ASSEMBLY 6411A20011K 6411A20011K 264110 REMOTE CONTROLLER ASSEMBLY 6711A20034G 6711A20034G 267110 PWB PCB ASSEMBLY MAIN DC 6871A20323C 6871A20323C 268712 PWB PCB ASSEMBLY MAIN AC 6871A20167L 6871A20167L 268714 MOTOR ASSEMBLY SINGLE 4681A20011M 4681A20011M 346811 DAMPER VENTILATION 4900A20004A 4900A20004A 349001 ORIFICE 4948A30008A 4948A30008A 349480 MOUNT MOTOR 4960AR2895B 4960AR2895B 349600 TUBE ASSEMBLY DISCHARGE SINGLE 5211A30066N 5211A30066N 352113 TUBE EVAPORATOR 5210A21099A 5210A21099A 352115 1 TUBE EVAPORATOR 5210A21099B 5210A21099B 352115 2 35211 TUBE ASSEMBLY SUCTION OUTDOOR 5211 20441 5211 20441 AIR GUIDE ASSEMBLY 5239A20002A 5239A20002A 352390 1 AIR GUIDE ASSEMBLY 5239A20003A 5239A20003A 352390 2 EVAPORATOR ASSEMBLY FIRST 5421A20091A 54214200914 354210 FAN ASSEMBLY TURBO 5901A20009A 5901A20009A 359012 ISOLATOR COMP 4H00982C 4H00982C 550140 TUBE CAPILLARY 5210A20492R 5210A20492R 552101 TUBE ASSEMBLY CAPILLARY 5211A30275R 5211A30275R 552111 CONDENSER ASSEMBLY BENT 5403A20062B 5403A20062B 554031 COMPRESSOR SET 2520UMKK2AA 2520UMKK2AA 554160 FAN ASSEMBLY AXIAL 5901A20010A 59
25. 1A20011J 6411A20011K 6411A20011K R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20052A 6 R 268712 PWB PCB ASSEMBLY MAIN DC 4995A30010D 4995A20278L 6871A20323C R 268714 PWB PCB ASSEMBLY MAIN AC 3831A10020F 3831A10021M 6871A20167L R 346811 MOTOR ASSEMBLY SINGLE 4681AR6033X 4681A20011M 4681A20011M R 349001 DAMPER VENTILATION 4900A20004A 4900A20004A 4900A20004A R 349480 ORIFICE 4948A30008A 4948A30008A 4948A30008A R 349600 MOUNT MOTOR 4960AR1596A 4960AR2895B 4960AR2895B R 35211 TUBE ASSEMBLY SUCTION OUTDOOR 5211A20441C 5211A20441A R 352111 TUBE CAPILLARY 5211AR3399L R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 2 5211A30066N R 352115 1 TUBE FORMED EVAPORATOR 5211A20215G 5210A21099A R 352115 2 TUBE FORMED EVAPORATOR 5211A20215H 5210A21099B R 35211A TUBE ASSEMBLY SUCTION OUTDOOR 5211A20441A R 352390 1 AIR GUIDE ASSEMBLY 5239A20002A 5239A20002A 5239A20002A R 352390 2 AIR GUIDE ASSEMBLY 5239A20003A 5239A20003A 5239A20003A R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20091A 5421A20091A 5421A20091A R 359012 ASSEMBLY TURBO 5901A20009A 5901A20009A 5901A20009A R 550140 ISOLATOR COMP 4H00982C 4H00982C 4H00982C R 552101 TUBE CAPILLARY 5210A20492R R 552111 TUBE ASSEMBLY CAPILLARY 5211A30275R 5211A30275R R 552113 TUBE ASSY CONDENSER OUT 5211A30066R 5211A30066N R 552116 TUBE ASSEMBLY REVERSING R 552202 VALVE REVERSING R 554031 CONDEN
26. 54210 EVAPORATOR ASSEMBLY FIRST 5421A20091C 359012 FAN ASSEMBLY TURBO 5901A20009A 550140 ISOLATOR COMP 4H00982C 554031 CONDENSER ASSEMBLY BENT 5403A20062B 554160 COMPRESSOR SET 2520UMKK2AA 559010 FAN ASSEMBLY AXIAL 5901A20010A 35211A TUBE ASSEMBLY SUCTION OUTDOOR 5211A20441A WOCZZ CAPACITOR DRAWING 6120AR2194F W48602 CLAMP SPRING 3H02932C W52106 1 TUBE FORMED 5210A21099E W52106 2 TUBE FORMED 5210A21099F Service Manual 49 P No 3828A20140E Printed in Korea
27. 6811 MOTOR ASSEMBLY SINGLE 4681AR6033V 4681AR6033V 4681A20081G R 349001 DAMPER VENTILATION 4900A20004A 4900A20004A 4900A20004A R 349480 ORIFICE 4948A30008A 4948A30008A 4948A30008A R 349600 MOUNT MOTOR 4960AR1596A 4960AR1596A 4960AR1596A R 352111 TUBE ASSEMBLY CAPILLARY 5211430275 5211A30275V 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A30066T 5211A30066T 5211A20805J R 352115 1 TUBE FORMED EVAPORATOR 5210A21099L 5210A21099X R 352115 2 TUBE FORMED EVAPORATOR 5210A21099M 5210A21099W R 35211A TUBE ASSEMBLY SUCTION OUTDOOR 5211A20441D 5211A20441D 5211A20441H R 352390 1 AIR GUIDE ASSEMBLY 5239A20002B 5239A20002B 5239A20002B R 352390 2 AIR GUIDE ASSEMBLY 5239A20003B 5239A20003C 5239A20003C R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20091D 5421A20091E 5421A20091C R 359012 FAN ASSEMBLY TURBO 5901A20009A 5901A20009A 5901A20009A R 550140 ISOLATOR COMP 4H00982C 4H00982C R 552101 TUBE CAPILLARY 5210A20556N R 552111 TUBE ASSEMBLY FORMED COND 5211AR3399R R 554031 CONDENSER ASS Y 5403A20004J 5403A20004K 5403A20062H R 554160 COMPRESSOR SET 2520UMDK2DA 2520UMDK2DA 2520UHCK2AA R 559010 FAN ASSEMBLY AXIAL 5901A20010A 5901A20010A 5900AR1508A 567502 OVERLOAD PROTECTOR R WOCZZ CAPACITOR DRAWING 6120AR2194P 6120AR2194P 2A00986Y R W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20034Z 6711 20
28. E 6 Install the unit with its bottom portion 30 60 above the floor FOAM E level 7 Stuff the foam between the top of the unit and the wall to pre M vent air and insects from getting into the room AIR 8 The power cord must be connected to independent circuit The green wire must be grounded n 9 Connect the drain tube to the base pan hole in the rear side if 5 you need to drain consult a dealer Plastic hose or equivalent may be connected to the drain tube Figure 1 The setting conditions must be checked prior to initial starting The following items are especially important check points when the installation is finished 1 Grounding wire Green or Green and Yellow is provided in the power cord The green wire must be grounded 2 Connect to a single outlet 15A circuit or 20A circuit for Electric Heater Model 3 To avoid vibration or noise make sure the air conditioner is installed securely 4 Avoid placing furniture or draperies in front of the air inlet and outlet In humid weather excess water may cause the BASE PAN to overflow To drain the water remove the DRAIN CAP and secure the DRAIN PIPE to the rear hole of the BASE PAN Press the drain pipe into the hole by pushing down and away from the fins to avoid injury Optional 1 Install the drain pan over the corner of the cabinet where you removed the plug with 4 or 2 screws Fig 1 2 Connect the drain hose to the outlet locate
29. ERSING VALVE I 0 O0 30L lt EAS 1 CN A SWING 91 3 CN A SWING SYNC MOTOR FE a PIPE 121 15 1 9 THERMISTOR A RY COMP 40 ASSEMBLY WIRING DIAGRAM 3854A20268L MODEL LW1800ERZ3 LW1800PR HBLG1803R MODEL LW1800ER LWP1830WAL D THERMISTOR SWITCH RY COMP AC PCB ASSEMBLY WIRING DIAGRAM 3854AR3563N ASSEMBLY LW1500PRY3 LW1500PR LW1800PRZ3 LW1804ER LWC182PLMD1 D AC PCB ASSEMBLY 9 S Service Parts N Non Service Parts LOCATION NO DESCRIPTION Q TY PER SET REMARKS MOTOR ASSY CAPACITOR COMPRESSOR OVERLOAD PROTECTOR DC PCB ASSEMBLY AC PCB ASSEMBLY THERMISTOR GO NN PLASMA FILTER ASSY h 42 NIN ND ND 0 Service Manual 25 Schematic Diagram Components MODEL LW1800PR LW1800ER MODEL LWC182PLMMO LWC212PLMMO LW1500PR LWP1830WAL LW1500PRY3 LW1800PRZ3 LWP1820PDL LWP1820PEL HBLG1803R LW1800ERZ3 LW1804ER LWC183PLMD1 E amwa NFOIJ cm e 49102 1 89 18 1355 00070690489 ON d 83 220291289 ON d
30. Irregular motor resistance Irregular motor insulation Q Replacement of compressor locking of rotor metal Replacement of compressor Motor damaged 30 Room Air Conditioner Troubleshooting Guide Possible Trouble 1 The unit does not operate Trans input power AC 115V Check the Fuse Check the wiring diagram yES Check the Main Is the Trans output power PCB pattern about AC 14V Is shorted the Trans output gt Replace the Trans NO e Replace 2020 0050 Is output Voltage of ICO1D gt Replace ICO1D Replac DC 12V NO Replace ICO2D Is output Voltage of ICO2D DC 5V Is the reset circuit OK The No 14 of Micom is 5V e Replace IC01A 02 Is the connection between NO Connect connector AC and DC exactly OK YES Check the PCB Is the voltage No 18 of Micom pattern Replace AC PCB Ass y Service Manual 31 Troubleshooting Guide Possible Trouble 2 Is setting NO Temp set lower than Room The compressor does not operate Temp 0 5 C Is the voltage No 10 of ICO1M OV Is the voltage NO 9 of l Select the setting Temp to lower Number Does the Unit delay for ICO1M DC 12V 3 minutes
31. LMMO LWC212PLMMO T 7 HIGH e e DRY COOL e TIMER FAN ENERGY LW1800ERZ3 HBLG1803R Cool FI LOW 1 F Energy Saver Fan 6 Dry Timer MODE TIMER gene E Precaution The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner 7 POWER BUTTON To turn the air conditioner ON push the button To turn the air conditioner OFF push the button again This button takes priority over any other buttons 2 ROOM TEMPERATURE SETTING BUTTON This button can automatically control the temperature of the room The temperature can be set within a range of 60 F to 86 F by 1 F 16 C to 30 C by 1 Select the lower number for lower temperature of the room 3 OPERATION MODE SELECTION BUTTON Every time you push this button it will shift among COOL ENERGY SAVER FAN and DRY Energy Saver If Energy Save mode is selected the fan stops when the compressor stops cooling Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed Z FAN SPEED SELECTOR Every time you push this button it is set as follows Hi F3 gt Low F1 gt Med F2 gt Hi F3 gt Low F1 gt ON OFF TIMER BUTTON You can set the time when the unit will tu
32. No 10 NO Check the PCB pattern of CN AC DC on AC PCB Assy DC 5V NO Is the connection of Connect connector to Y CN AC DC OK e Replace Receiver Ass CN AC DC exactly Service Manual 37 Troubleshooting Guide Possible Trouble 6 It displays abnormally on DC PCB Ass y NO Are the IC01G and ICO2G good ves NO Is the connection of NO e Replace IC01G IC02G Connect connector CN AC DC OK I Does NO to CN AC DC exactly operate normally on AC Ass y Pr Replace the DC PCB 38 Room Air Conditioner Replace IC03G Troubleshooting Guide COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if none Power supply cord Check voltage to Control Box If none check power supply cord Replace cord if circuit is open Wire disconnected or con nection loose Connect wire Refer to wiring diagram for terminal identification Repair or replace loose terminal Capacitor Discharge capacitor before testing Test capacitor Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud or blower wheel hitting scroll Realign assembly Units using slinger ring for condenser fan must
33. PE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING HEATING 3 3 3 3 2 2 2 3 3 FAN MOTOR 6 POLES OPERATION CONTROL REMOTE CONTROLLER ROOM TEMP CONTROL THERMISTOR VERTICAL LOUVER RIGHT amp LEFT AIR DIRECTION CONTROL HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUDING POWER CORD ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 115 52 110 50 115 52 OUTSIDE DIMENSION inch 253 162 X 26 27 32 WxHxD 660 X 428 X 680 DB dry bulb WB wet bulb NOTE Please refer to label quality on the product since this specification may be changed for improving performance 6 Hoom Air Conditioner Installation Installation Select the Best n To avoid vibration and noise make sure the unit is installed securely and firmly 2 Install the unit where the sunlight does not shine directly on the unit If the unit receives direct sunlight build an awning to shade the cabinet 3 There should be no obstacle like a fence within 20 which might restrict heat radiation from the condenser 4 To prevent reducing performance install the unit so that louvers of the cabinet are not blocked 5 Install the unit a little obliquely outward not to leak the con densed water into the room about 1 2 or 1 4 bubble with level FENC
34. SER ASSEMBLY BENT 5403A20062B 5403A20062B 8 R 554160 COMPRESSOR SET 2520UMTC2AA 2520UMKK2AA 2520UMKK2AA R 559010 FAN ASSEMBLY AXIAL 5901A20010A 5901A20010A 5901A20010A R 561410 COIL ASSEMBLY REVERSING VALVE R 566000 SWITCH PRESSURE R 567502 6750U LO16A 6 R WOCZZ CAPACITOR DRAWING OCZZA20001L 6120AR2194F 6120AR2194F R W48602 CLAMP SPRING 3H02932C 3H02932C 3H02932C R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20034G R Service Manual 45 Replacement Parts List PART NO m DESCRIPTION REMARK LW1800PR LW1800ER LW1500PR LWP1830WAL 130410 BASE PAN WELD ASS Y 3041A20023B R 130910 CABINET ASS Y 3091AR6057E 3091AR6057H R 135312 FRONT GRILL ASS Y 3531A20095A 3531A20095B R 135303 INLET GRILLE 3530A10080A R 135500 COVER CONTROL BOX 3550A30122A R 147581 HORIZONTAL LOUVER 4758A30022A R 147582 1 VERTICAL LOUVER 4758A30023A R 147582 2 VERTICAL LOUVER 4758A30023B R 148000 BRACE 4800A20001A R 149980 SHROUD 4998A10013A R 152302 AIR FILTER ASS Y 5231A20008A R 152312 PLASMA FILTER ASS Y 5983A10009H z 5983A10009H R 237200 CONTROL PANEL 3720A20141A 3720A20156A 3720A20141A R 249950 CONTROL BOX ASS Y 4995A20194C 4995A20194J 4995A20194M 4995A20194R R 268712 DISPLAY PCB ASS Y 6871 20185
35. See Figure 20 11 Remove the clamp with a hand plier that secures the turbo fan 12 Remove the turbo fan 13 Remove the 2 screws that fasten the air guide from the base pan 14 Move the air guide backward and pull out from the base pan Move the air giude lower carefully 15 Re install the components by referring to the removal procedure above O Figure 18 Figure 19 5 FAN Remove the cabinet Refer to section 2 Remove the brace Refer to section 4 Remove the 5 screws that fasten the condenser Move the condenser to the left carefully Remove the clamp that secures the fan Remove the fan See Figure 21 Re install by referring to the removal procedure NS Sa ASC X O Q WD gt Figure 20 Figure 21 Service Manual 17 Disassembly 6 Shroud 1 Remove the fan Refer to section 5 2 Remove the shroud See Figure 22 3 Re install the components by referring to the removal procedure above Figure 22 Electrical Par 7 Overload Protector 1 Remove the cabinet Refer to section 2 Remove the nut that fastens the terminal cover Remove the terminal cover See Figure 23 Remove all the leads from the overload protec tor Remove the overload protector 6 Re install the components by referring to the removal procedure above m
36. UVER VERTICAL 4758A20042A 147582 2 LOUVER VERTICAL 4758A20042B 148000 BRACE 4800A20001A 149980 SHROUD 4998A10013A 152302 FILTER ASSEMBLY AIR CLEANER 5231A20008A 159830 AIR CLEANER ASSEMBLY 5983A10009K 237200 PANEL CONTROL 3720A10110A 238310 ESCUTCHEON 3831A10020F 249950 CONTROL BOX ASSEMBLY SINGLE 4995A30010K 263230 THERMISTOR ASSEMBLY 6323A20004E 264110 POWER CORD ASSEMBLY 6411A20011K 267110 REMOTE CONTROLLER ASSEMBLY 6711A20052A 268712 PWB PCB ASSEMBLY MAIN DC 6871A20323A 268714 PWB PCB ASSEMBLY MAIN AC 6871A20271B 349001 DAMPER VENTILATION 4900A20004A 349480 ORIFICE 4948A30008A 349600 MOUNT MOTOR 4960AR2895B 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A30066N 35211A TUBE ASSEMBLY SUCTION OUTDOOR 5211A20441A 352390 1 AIR GUIDE ASSEMBLY 5239A20002A 352390 2 AIR GUIDE ASSEMBLY 5239A20003A 354210 EVAPORATOR ASSEMBLY FIRST 5421A20091A 359012 FAN ASSEMBLY TURBO 5901A20009A 550140 ISOLATOR COMP 4H00982C 552111 TUBE ASSEMBLY CAPILLARY 5211A30275R 554031 CONDENSER ASSEMBLY BENT 5403A20062B 559010 FAN ASSEMBLY AXIAL 5901A20010A 567502 O L P 6750U L016A WOCZZ CAPACITOR DRAWING 6120AR2194F W48602 CLAMP SPRING 3H02932C W52106 1 TUBE FORMED 5210A21099E W52106 2 TUBE FORMED 5210A21099F 554160 COMPRESSOR SET 2520UMKK2AA 346811 MOTOR ASSEMBLY SINGLE 4681A20011M Service Manual 43 Replacement Parts List
37. d at the bottom of the drain PAN DRAIN HOSE pan You can purchase the drain hose or tubing locally to satisfy your particular needs Drain hose is not supplied 3 Select the most appropriate connection from among the following figures by considering the hole of the unit to fit drain pan to your own unit Service Manual 7 Installation How to Install When Using Installation Kits 1 Window Requirements This unit is designed for installation in standard double hung windows with actual opening widths from 29 to 41 Offset The top and bottom window sash must open suffi Less 11 4 ciently to allow a clear vertical opening of 16 from the bottom of the upper sash to the window stool Sill Exterior Without frame curtain 2 Installation Kits Contents Foam strip Foam PE Plain Back Adhesive Backed Foam PE Adhesive Backed Left frame curtain Drain pipe Window locking lt gt Sill bracket 2 Sa curtain Right frame Type A 14 Type B 7 Type C 5 Type D 2 Carriage Bolt 2 Lock Nut 4 Y T W Top retainer bar is in product package 8 Hoom Air Conditioner SCREWDRIVER RULER KNIFE HAMMER PENCIL LEVEL Preparation of Chassis AB Remove the screws which fasten the cabinet at both sides Slide the unit out from the cabinet by gripping the base pan Cut the window sash seal to the pro
38. e terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heat ing Air filter If restricted clean of replace Exhaust damper door Close if open Unit undersized Determine if the unit is properly sized for the area to be cooled Excessive noise Turbo or fan Check the set screw or clamp If loose or missing correct If the turbo or fan is hitting air guide rearrange the air handling parts Copper tubing Remove the cabinet carefully and rearrange tubing not to contact cabinet compressor shroud and barri er 40 Room Air Conditioner Exploded View Exploded View COOLING MODEL 41 Service Manual Exploded View HEATING MODEL 42 Hoom Air Conditioner Replacement Parts List Replacement Parts List DESCRIPTION PANTYS REMARK LW1800PRZ3 130410 BASE ASSEMBLY WELD SINGLE 3041A20023D 130910 CABINET ASSEMBLY SINGLE 3091AR6057E 135303 GRILLE INLET 3530A10080A 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A20095A 147581 LOUVER HORIZONTAL 4758A30022A 147582 1 LO
39. es tus qe butter 17 El cirical Dalls totae ertet bct date re tote tU cae ute 18 Retrigerating Cy leis D a E a a a 20 Schematic Dlagram 5 s dese te ned esci asada ais eed ae iacula c dup sud nds 23 Electronic Gontol Devices n oat d edet oed cepi dete sectione 23 Wiring DIS eto octubre ht teer ntu bod tunc 25 Components EOS ssec nan oa teo pae nude 26 Troubleshooting 28 Piping 28 Troubleshooting Guide sass el i e Re INS 29 Electrical Parts Troubleshooting Guide 34 20 85 ee etc te sie 31 Electric PariS 95 Exploded Mm 41 43 2 Hoom Air Conditioner Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is Classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury ACAUTION This symbol indicates the possibility of injury o
40. g or Fan mode with this button 12 FAN SPEED SELECTOR Select the fan speed Cooling Model 3 steps High F3 gt Low F1 gt Med F2 2 High F3 Heating Model 2 steps High F2 gt Low F1 gt High F2 5 ON OFF TIMER BUTTON Set the time of starting and stopping operation The timer is set by 1 hour SIGNAL RECEIVER 7 AUTO SWING The vertical louver swings horizontally by the automatic system and stops when you press the button again Service Manual 15 Disassembly E Disassembly Before the following disassembly CONTROL BOX set to OFF and disconnect the power cord Mechanical 1 Front Grille 1 Open the Inlet grille downward and remove the air filter 2 Remove the screw that fastens the front grille See Figure 15 3 Pull the front grille from the right side Remove the front grille There are 4 hooks 5 Re install the components by referring to the removal procedure above 2 Cabinet 1 After disassembling the FRONT GRILLE remove the 2 screws that fasten the cabinet at both sides 2 Remove the 2 screws that fasten the cabinet at back 3 Pull the base pan forward See Figure 16 4 Remove the cabinet 5 Re install the components by referring to the removal procedure above AR 3 Control Box 1 Remove the front grille Refer to section 1 2 Remove the cabinet Refer to section 2 3 Remove the 2 screws which fasten the power cord 4 Disconnect t
41. have 1 4 to 5 16 inch clearance to the base If it hits the base shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Fan motor runs intermittently Revolves on overload Check voltage If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor Fan motor noise Fan If cracked out of balance or partially missing replace it Turbo If cracked out of balance or partially missing replace it Loose clamper Tighten it Worn bearings If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace motor Compressor will not run but fan motor runs Voltage Check voltage If not within limits call an electrician Wiring Check the wire connections if loose repair or replace the terminal If wires are off refer to wiring diagram for identification and replace Check wire locations If not per wiring diagram correct Service Manual 39 Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor will not run but fan motor runs Thermistor Check the TEMP control If not at the lowest number set TEMP control
42. he air conditioner 71 POWER BUTTON To turn the air conditioner ON push the button To turn the air conditioner OFF push the button again This button takes priority over any other buttons 2 ROOM TEMPERATURE SETTING BUTTON This button can automatically control the temperature of the room The temperature can be set within a range of 60 F to 86 F by 1 F 16 C to 30 C by 1 Select the lower number for lower temperature of the room 13 OPERATION MODE SELECTION BUTTON Every time you push this button it will shift among COOL ENERGY SAVER FAN and DRY as follows AUTO 1 AUTO RESTART RESTART COOL ENERGY SAVER Energy Saver If Energy Save mode is selected the fan stops when the compressor stops cooling Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed 12 Hoom Air Conditioner Operation 12 FAN SPEED SELECTOR Every time you push this button it is set as follows Hi gt Low gt Med gt Hi gt Low gt FAN 4 6 f 4 By NS INDOOR DESIRED rir oo RESTART ON OFF TIMER BUTTON You can set the time when the unit will turn on or turn off automatically by pressing the timer button If the unit is operating this button controls the time it will be turned off If the unit is off state this button controls the time it will start Every time you push this button the remaining time will be set as follows Sto
43. he grounding screw from the evaporator channel 5 Remove the 1 screw that fastens the control box cover lt 6 Remove the housing that connects PCB and motor M wire in the control box 7 Disconnect the housing that connects Plazma Air Purifier Optional Figure 16 8 Remove the screw at left cover of filter case and open the cover to remove inner screw Optional 9 Remove the nut that fastens the terminal cover 10 Remove the terminal cover 11 Remove all the leads from the overload protector 12 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 13 Raise the control box upward completely See Figure 17 14 Re install the components by referring to the removal procedure above Refer to the wiring diagram found on page 25 in this manual and on the control box Figure 13 16 Hoom Air Conditioner Disassembly Air Handling 4 Air Guide and Turbo Fan Remove the front grille Refer to section 1 Remove the cabinet Refer to section 2 Remove the control box Refer to section 3 Remove the 4 screws that fasten the brace Remove the brace Remove the 2 screws that fasten the air guide upper Remove the air guide upper See Figure 18 Remove the 2 screws that fasten the evaporator 9 Move the evaporator forward and pulling it upward slightly See Figure 19 10 Pull out the hook of orifice by pushing the tabs and remove it
44. ing Guide E Troubleshooting Guide Piping Sys CONDENSER COIL ix CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COIL Figure 31 is a brief description of the important components and their function in what is called the refrigeration system This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET COMPLETE LIQUID COOL LOW PRESSURE VAPOR HOT BOIL OFF POINT DISCHARGED Z AIR e Zi lt lt ROOM AIR HEAT LOAD E lt lt 5 5 p OUTSIDE COOLING gt 4 AIR FOR REFRIGERANT PASS THROUGH 4 COMPRESSOR E o B 7 LIQUID PRESSURE LIQUID OUTLET DROP D REFRIGERANT UA HIGH PRESSURE VAPOR CAPILLARY TUBE a REFRIGERANT P777 LOW PRESSURE VAPOR Figure 31 28 Room Air Conditioner Troubleshooting Guide In general possible trouble is classified in two kinds The one is called Starting Failure which is caused from an electrical defect and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application Ineffective Cooling
45. per length Peel off the Remove the backing from Foam PE with 3 holes and attach Attach the Top retainer bar onto the top of the cabinet with 3 and at the back Keep these two screws which fasten the cabinet at both sides for later use handle and pulling forward while bracing the cabinet backing and attach the Foam Seal to the underside of the window sash itto the bottom of the Top retainer bar screws Type A Figure 3 Insert the Frame guides into the bottom of the cabinet Top retainer bar Insert the Frame Curtain into the Top retainer bar and Foam Seal Frame guides Figure 4 Foam PE Top retainer bar Fasten the curtains to the unit with 10 screws Type A at both sides Screw Type A Frame guide Figure 5 Service Manual 9 Installation 1 Open the window Mark a line on the center of the window Stool between the side window stop moldings Loosely attach the sill bracket to the support bracket using the carriage bolt and the lock nut 2 Attach the sill bracket to the window sill using the screws Type B Carefully place the cabinet on the window stool and align the center mark on the bottom front with the center line marked window stool Using the M screw and the lock nut attach the support bracket to the cabinet track hole Use the first track hole after the sill bracket on the outer edge of the window sill Tighten the carriage bolt and the lock nut Be
46. pping operation 1Hour gt 2Hours gt 3Hours gt 4Hours gt 5Hours gt 6Hours gt 7Hours gt 8Hours gt 9 gt 10Hours gt 11Hours gt 12Hours gt OHour gt 1Hour gt 2Hours gt Starting operation 1 gt 2Hours gt 3Hours gt 4Hours gt 5Hours gt 6Hours gt 7Hours gt 8Hours gt 9 gt 10Hours gt 11Hours gt 12Hours gt off gt 1Hour 2Hours gt 6 REMOCON SIGNAL RECEIVER 7 AIR PURIFIER Press the Air Purifier button Operation will start when the button is pressed and stop when the button is pressed again Set the fan speed with the remote control You can select the fan speed in three steps high low or medium Each time the button is pressed the fan speed mode is shifted f you press the only Air Purifier button only air purifying operates Then fan speed is low You can select the fan speed in three steps high low or medium Each time the button is pressed the fan speed mode is shifed 8 SLEEP MODE Press the sleep mode button to set the time you want the unit to turn off automatically Every time you push this button the remaining time will be set as follows 1Hour 2Hours gt 3Hours 4Hours 5Hours gt 6Hours gt 7Hours gt OHour 1Hour 2Hours The temperature setting will be raised by 2 F in 30 minutes and by 4 F in 1 hour to prevent overcooling during sleep Service Manual 13 Operation DISPLAY REMOTE CONTROL LW1800ER LWC182P
47. r damage to properties only Meanings of symbols used in this manual are as shown below 9 sure not to do 0 Be sure follow the instruction A WARNING Installation Do not use damaged power cord plugs or a Always use the power plug and socket with loose socket the ground terminal There is risk of fire or electric shock There is risk of electric shock Service Manual 3 Safety Precautions Do not modify or extend the power cord Do not install remove or re install the unit by yourself customer There is risk or fire or electric shock There is risk of fire electric shock explosion or injury Be cautious when unpacking and installing Do not store or use flammable gas or com the product bustibles near the air conditioner Sharp edges could cause injury Be especially careful There is risk of fire or failure of product of the case edges and the fins on the condenser and evaporator Be sure the installation area does not deterio rate with age If the base collapses the air conditioner could fall with it causing property damage product failure and per sonal injury 4 Hoom Air Conditioner Dimensions Dimensions Symbols Used A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the A air conditioner This symbol indicates special notes
48. rn on or turn off automatically by pressing the timer button If the unit is operating this button controls the time it will be turned off If the unit is off state this button controls the time it will start Every time you push this button the remaining time will be set as follows Stopping operation 1Hour gt 2Hours gt 3Hours 4Hours gt 5Hours gt 6Hours 7Hours gt 8Hours 9Hours 10Hours gt 11Hours gt 12Hours gt gt 1Hour 2Hours gt Starting operation 1Hour gt 2Hours gt 3Hours 4Hours gt 5Hours gt 6Hours gt 7Hours gt 8Hours 9Hours 10Hours gt 11Hours gt 12Hours gt off 1Hour gt 2Hours gt REMOCON SIGNAL RECEIVER 7 AUTO SWING This button can automatically control the air flow direction IS 14 Hoom Air Conditioner Operation LWP1820PDL PEL DISPLAY REMOTE CONTROL F2 MED F3 HIGH e COOL e TIMER FAN ac 19 3 6 3 F1 LOW F2 MED F3 HIGH e DEFROST HEAT COOL e D POWER BUTTON Operation starts when this button is pressed and stops when you press the button again w 2 ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of 16 to 30 The room temperature will be adjusted by 1 C 30min and by 2 C 1 hour later I OPERATION MODE SELECTION BUTTON Select Cooling Heatin
49. uum pump is now pulling through valves A and B up to valve C by means of the manifold and entire system CAUTION If high vacuum equip ment is used just crack valves A and B for a few minutes then open slowly with the two full turns counterclockwise This will keep oil from foaming and being drawn into the vacuum pump 3 Operate the vacuum pump vaccum for 20 to 30 minutes until 600 microns of vaccum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pres sure would indicate a possible leak or moisture remaining in the system With valves A and B closed stop the vacuum pump 4 Remove the hose from the vacuum pump and place it on the charging cylinder See figure 30B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 3 Remove the capillary tube 4 Re install the components by referring to notes 6 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in figure 30B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow the proper charge to enter the system Valve B is still closed 4 If more charge is required the high side will not take it
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