Home

Service Manual - Appliance Factory Parts

1. EXTERNAL VACUUM PUMP Lyr CHARGING CYLINDER Figure 17A Pulling Vacuum Figure 17B Charging Copyright 2007 LG Electronics Inc All right reserved 13 Only for training and service purposes LGE Internal Use Only 3 INSTALLATION 3 1 INSTALLATION REQUIREMENTS If you use an existing wall sleeve you should measure its dimensions Install the new air conditioner according to these installation instructions to achieve the best performance All wall sleeves used to mount the new air conditioner must be in good structural condition and have a compatible rear grille in order to securely attach the new air conditioner FIG 18A With the FRIEDRICH USC sleeve you can maintain the best performance of the new air conditioner FIG 18B INSTALLATION HARDWARE 18 468 mm S ESSE He I AAG ALLEL 2 bby Key Zh 2 LOLI ITA AD DAT PU EP PP I LEILA LEI PLY 2 Size options LEE 095022968 d O
2. Air Conditioner FIG 18A SON asm 656 mm aw 394 mm aluminum metal grille 16 2373 2 425 mm FRIEDRICH USC Wall Sleeve FIG 18B Q Pe M lt 2 Size options NAME OF PARTS Q TY D PLASTIC GRILLE 1 VERTICAL INSULATION STRIP 1 9 AROUND INSULATION STRIPS 2 HORIZONTAL INSULATION STRIP 1 SUPPORT BLOCK 2 BAFFLE 1 TRIM FRAME 2 SHIM 2 9 PLASTIC NUTS AND WASHER SCREWS 4 GRILLE REAR 1 ELECTRICAL SERVICE Check your available electrical service The power supply available must be the same as that shown on the unit nameplate found on left side of cabinet All models are equipped with a 3 prong service plug to provide proper service and safe positive grounding Do not change plug in any way Do not use an adapter plug If your present wall outlet does not match your plug call a qualified electrician to make the necessary corrections SAVE CARTON for storage and this OWNER S MANUAL for future reference The carton is the best way to store unit during winter or when not in use Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CAUTION To avoid risk of personal injury property damage or product damage due to the weight of this device and sharp edges that may be exposed e Air conditioners covered in this manual pose an excessive weight hazard Two or more people are
3. Only compressor fails to start Drop in power voltage Defective compressor capacitor Check capacitor Replacement Improper thermostat setting Loose terminal connection Improper wiring Y Only fan fails to start Y Improper wiring Y Defect of fan motor capacitor Irregular motor resistance Q Irregular motor insulation Q Y Replacement of fan motor Irregular motor resistance Y Irregular motor insulation Q Replacement of compressor Motor damaged Copyright 2007 LG Electronics Inc All right reserved 23 Only for training and service purposes Regular but fails to start Replacement of compressor locking of rotor metal LGE Internal Use Only COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if none Power supply cord Check voltage to rotary switch If none check power supply cord Replace cord if circuit is open Rotary switch Check switch continuity Refer to wiring diagram for terminal identification Replace switch if defective Wire disconnected or connection loose Connect wire Refer to wiring diagram for terminal identification
4. Copper tubing Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and barrier Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 26 LGE Internal Use Only 5 SCHEMATIC DIAGRAM 5 1 CIRCUIT DIAGRAM MODEL LT1230CR LT1030CR LT1010CR LT1430CR LT1210CR LT100CSG LT120CSG LTO810CR LT1010CRY6 LT1030CRY6 LT1210CRY6 LT1430CRY6 LTOS0CSG LT121CSG WIRING DIAGRAM CN MOTOR CN MAIN1 085 CN DISP1 CN MAIN2 CN DISP2 POWER 1 WH BL Ribbed BK BR Plain FUSE 250V T2A CO 115V T2A Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CY E RY COMP 40 MAIN PCB ASSEMBLY 227 AIR FILTER ASSEMBLY 3854AR3629N DISPLAY PCB ASSEMBLY LGE Internal Use Only 6 EXPLODED VIEW MODEL LT1230CR LT1030CR LT1010CR LT1430CR LT1210CR LT100CSG LT120CSG LT0810CR LT1010CRY6 LT1030CRY6 LT1210CRY6 LT1430CRY6 LTOS0CSG LT121CSG GERD 554081 Copyright 2007 LG Electronics Inc All right reserved 28 Em LGE Internal Use Only Only for training and service purposes MODEL LXC103BLMK1 AWYBULI LXC103BLMK
5. HEATER ASSY AND TURBO FAN 8 4 2 PIPING SYSTEM retis 21 22 2 FAN 8 4 3 TROUBLESHOOTING 22 2 2 3 9 2 3 ELECTRICAL PARTS 9 5 SCHEMATIC DIAGRAM 2 3 1 9 SH CIRCUIT BUG ptione 27 2 3 2 9 6 EXPLODED 28 2 3 9 CAPACITOR 9 2 3 4 POWER CORD 10 2 3 5 THERMISTOR 10 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc This room air conditioner was manufactured and assembled under a strict quality control system The refrigerant is charged at the factory Be sure to read the safety precautions prior to servicing the unit 1 1 SAFETY PRECAUTIONS 1 2 INSULATION RESISTANCE TEST 1 When servicing the unit turn off the air conditioner 1 Unplug the power cord and connect a jumper and unplug the power cord between 2 pins black and white 2 Observe the original lead dress 2 The grounding conductor green or green amp yellow If a short circuit is found replace all parts which is to be open have been overheated or damaged by the short 3 Measure the resistance value with an ohm meter circuit between th
6. 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 condenser fans must have 1 4 to 5 16 inch clearance to the base If it is hitting 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 See limits on page 27 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 Grommets Check grommets if worn or missing replace them Fan If cracked out of balance or partially missing replace it Turbo fan If cracked out of balance or partially missing replace it Loose set screw 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 TUR ME METTE A m EC Copyright 2007 LG Electronics Inc All right reserved Only for training and ser
7. ATTACHMENT PLUG CORD CONNECTED TYPE LCDI DRAIN SYSTEM SPLASHED BY FAN SLINGER NET WEIGHT lbs kg 78 35 80 36 73 33 DIMENSION inch 24 x 14 13 32 x 20 3 32 W x H x D mm 610 x 366 x 499 SLEEVE DIMESION inch 25 7 8 x 15 17 32 x 16 23 32 W x H x D mm 656 x 394 x 425 SLEEVE DEPTH inch 20 1 20 WITH FRONT GRILLE mm 521 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 3 2 FOR LT1030CR LT1230CR LT1430CR B oU m ud LT1030CR LT1230CR LT1430CR REMARK ITEMS POWER SUPPLY 10 230 208V 60Hz COOLING CAPACITY Btu h 10 000 9 800 11 700 11 400 13 200 12 800 INPUT W 1 060 1 040 1 250 1 210 1 550 1 500 RUNNING CURRENT A 4 7 5 2 5 8 6 2 7 1 7 6 E E R Btu w h 9 4 9 4 8 5 REFRIGERANT R 22 CHARGE g 480g 16 90Z 475g 16 8OZ 5409 19 102 OPERATING INDOOR C 26 7 DB 19 4 WB TEMPERATURE OUTDOOR C 35 DB 23 9 WB EVAPORATOR 2 ROW 12STACKS 3 ROW 12STACKS CONDENSER 2 ROW 17STACKS L BENDING TYPE LOUVERED FN TYPE FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 8POLES 4POLES OPERATION CONTROL ELECTRIC ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION TO
8. PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING HEATING 3 3 FAN MOTOR 6 POLES 4POLES OPERATION CONTROL ELECTRIC ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION TOP DOWN PROTECTOR COMPRESSOR EXTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 1 4m 3WIRES WITH GROUNDING ATTACHMENT PLUG CORD CONNECTED TYPE LCDI DRAIN SYSTEM SPLASHED BY FAN SLINGER NET WEIGHT lbs kg 78 35 87 40 78 35 80 36 DIMENSION inch 24 x 14 13 2 20 3 32 W x H x D mm 610 x 366 x 499 SLEEVE DIMESION inch 25 7 8 X 15 17 32 16 73 32 OPTIONAL WxHxD mm 656 x 394 x 425 PART SLEEVE DEPTH inch 20 1 2 WITH FRONT GRILLE mm 521 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 4 FEATURES Designed for cooling only Side air intake side cooled air discharge Powerful and quiet cooling Built in adjustable THERMISTOR and THERMOSTAT Top down chassis for the simple installation and service e Washable one touch filter Compact size 1 5 CONTROL LOCATIONS 1 5 1 COOLING ONLY MODEL OPERATION FAN SPEED Every time you push this button it advances the setting as follows High Low gt Med gt High REMOTE CONTROL SIGNAL RECEIVER F1LOW 7 E TEMPERATURE SETTING F3 HIGH Use this button to automatically control th
9. it must be replaced with the factory authorized and specified cord Figure 13 2 3 5 THERMISTOR Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Disconnect all the leads of thermistor terminals Remove the thermistor See Fig 14 Re install the components by referring to the removal procedures above Figure 14 Copyright 2007 LG Electronics Inc All right reserved 10 Only for training and service purposes LGE Internal Use Only 2 4 REFRIGERATION CYCLE m CAUTION 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 4 1 CONDENSER 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace Refer to section 2 2 1 3 Remove the 7 screws which fasten the condenser 4 After discharging the refrigerant completely into a Freon Recovery System unbraze the interconnecting tube at the condenser connections 5 Remove the condenser 6 Re install the components by referring to the notes See Fig 15 Figure 15 2 4 2 EVAPORATOR 1 Remove the cabinet Refer to section 2 1 2 2 Discharge the refrigerant completely into a Freon Recovery System 3 Remove the 2 screws which fasten the evaporator at the left
10. side and the right side 4 Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 5 Remove the evaporator 6 Re install the components by referring to the notes See Fig 16 Al il D A lt i AT i i Wei I T Figure 16 2 4 3 CAPILLARY TUBE 1 Remove the cabinet Refer to section 2 1 2 2 After discharging the refrigerant completely into a Freon Recovery System unbraze the interconnecting tube at the capillary tube 3 Remove the capillary tube 4 Re install the components by referring to the notes Copyright 2007 LG Electronics Inc All right reserved 11 Only for training and service purposes LGE Internal Use Only NOTES 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 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 unbrace the pinch off tubes 3 Solder service valves into the pinch off tube ports leaving the valves open 4 Solder the pinch off tubes with Service valves 5 Evacuate as follows 1 Connect
11. the vacuum pump as illustrated Fig 17A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed The vacuum pump is now pulling through valves A and up to valve by means of the manifold and entire system If high vacuum equipment 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 for 20 to 30 minutes until 600 microns of vacuum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pressure 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 Fig 17B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 12 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 Fig 17B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow the proper charge to enter the system Va
12. to step 7 Otherwise cut the baffles and the support blocks according to length A in the table below Depth D of the existing Length A wall sleeve inches inches Q Support 18 D lt 18 5 8 4 f DIOE 18 5 D 19 3 1 3 4 d Baffle 19 9 lt D lt 22 4 Al FIG 30 17 LGE Internal Use Only PROCEDURE B CONTINUED 7 enoe the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 31 Slide the baffle into slots of the support blocks Wall Wall Bart Sleeve i ae Support Block FIG 31 8 Install the new unit into the wall sleeve 9 Assemble trim as described in Step 6 Procedure A CAUTION Air conditioners covered in this manual pose an excessive weight hazard Two or more people are needed to move and install the unit To prevent injury or strain use proper lifting and carrying techniques when moving unit When handling the air conditioner be careful to avoid cuts from sharp metal fins on front and rear coils Make sure air conditioner does not fall during removal f unit does not operate after installation check to be sure the circuit interrupter has not been tripped Refer to the Troubleshooting guide for reset procedure Copyright 2007 LG Electronics Inc All right reserved 18 Only for training and service purposes LGE Internal Use Only 3 5 PROCEDURE C Redirect the
13. 1 AWYBHDP LXC103BLMKO AWY BULI LXCO81BLMK1 AWYBULI LXCO81BLMK1 AWYBCIL GERD 554081 Copyright 2007 LG Electronics Inc All right reserved 29 Only for training and service purposes LGE Internal Use Only MODEL LXC143BLMK2 AWYBULI LXC143BLMK1 AWYBUSL GERD 554081 Copyright 2007 LG Electronics Inc All right reserved 30 Only for training and service purposes LGE Internal Use Only P NO 3828A20294P January 2008
14. LLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COILS REFRIGERANT FLOW Following is a brief description of the important components and their functions in the refrigeration system Refer to Fig 41 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS SUCTION LIME VAPOR INCET COMPLETE LIQUID BOIL OFF POINT COOL LOW PRESSURE VAPOR HOT DISCHARGED AIR COOLED AIR ROOM AIR HEAT LOAD a A S OUTSIDE COOLING lt AIR FOR REFRIGERANT MOTOR PASS THROUGH P COMPRESSOR on LIQUID PRESSURE LIQUID OUTLET DROP LIQUID REFRIGERANT i YZZ HIGH PRESSURE VAPOR CAPILLARY TUBE A PEFRIGERANT RSZ Figure 41 Low PRESSURE VAPOR Copyright 2007 LG Electronics Inc All right reserved 21 Only for training and service purposes LGE Internal Use Only 4 3 TROUBLESHOOTING GUIDE In general possible trouble is classified in two causes 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 Unit is running but cooling is ineffective In
15. P DOWN PROTECTOR COMPRESSOR EXTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 2 3m 3WIRES WITH GROUNDING ATTACHMENT PLUG CORD CONNECTED TYPE LCDI DRAIN SYSTEM SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 78 35 80 36 87 40 DIMENSION inch 24 x 14 13 32 x 20 3 32 W x H x D mm 610 x 366 x 499 SLEEVE DIMESION inch 25 7 x 15 17 32 x 16 23 32 WxHxD mm 656 x 394 x 425 SLEEVE DEPTH inch 20 1 20 WITH FRONT GRILLE mm 521 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 1 3 3 FOR LT1030CRY6 LT1430CRY6 LT1010CRY6 LT1210CRY6 LT121CSG MODELS LT1030CRY6 LT1430CRY6 LT1010CRY6 LT1210CRY6 ITEMS LT121CSG POWER SUPPLY 10 230 208V 60Hz 16 115V 60Hz COOLING CAPACITY Btu h 10 000 9 800 13 200 12 800 9 800 11 500 INPUT W 1 060 1 040 1 550 1 500 1 110 1 310 RUNNING CURRENT A 4 7 5 2 7 1 7 6 10 2 12 0 E E R Btu W h 9 4 9 4 8 5 8 5 8 8 8 8 OPERATING INDOOR C 26 7 DB 19 4 WB TEMPERATURE OUTDOOR C 35 DB 23 9 WB REFRIGERANT R 22 CHARGE g 4909 17 302 540g 19 1Oz 475g 16 80z 485g 17 10z EVAPORATOR 3ROW 12STACKS CONDENSER 2ROW 17STACKS L BENDING TYPE LOUVERED FIN TYPE FAN INDOOR TURBO FAN FAN OUTDOOR
16. ame Washer Screw Nuts Plastic la a nmng Grille Rear HOW TO INSTALL u Before installing the unit identify the existing wall sleeve from the list below J Install new unit into wall sleeve CAUTION When installation is completed replacement unit MUST have a rearward slope as shown To achieve 1 4 slope remove the backing from the 11 13 16 shim strips and attach them as shown below in Fig 19 Place the higher portion of shim to the front of the rib on base of wall sleeve Brand Wall Sleeve Dimensions inches Width Height Depth White Westinghouse Frigidaire 25 1 2 15 1 4 2 Carrier 52F series General Electric Hotpoint 26 15 5 8 16 7 8 17 1 8 Whirlpool 25 7 8 16 1 2 or 23 Fedders Emerson 27 16 3 4 16 3 4 Friedrich WSC or 19 3 4 FRIEDRICH USC 25 7 8 15 17 32 16 23 32 Emerson Fedders 26 3 4 15 3 4 15 Carrier 51S Series 25 3 4 16 7 8 18 5 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 1 high 3 4 High UNIT Wall Sleeve Ee SHIM PLACEMENT UNIT INSTALLATION FIG 19 15 LGE Internal Use Only 3 3 PROCEDURE A If you are using the new sleeve optionally supplied with your unit skip to step 3 Otherwise install the plastic grille from the kit Cut the plastic grille to 25 1 2 wide and 15 1 4 high Place the
17. astic grille FIG 26 E Fasten the 4 washer screws to secure the grille to the wall sleeve If you need plastic nuts to mount plastic grille to the inside of the wall sleeve there are plastic nuts in the installation kit The nuts are installed from the inside of the sleeve and are pressed into the square holes of the rear flanges Fasten the bracket to the upside of the wall sleeve using the washer screw The bracket prevents the unit from leaving the sleeve Fasten the screws and the bracket FIG 27 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 Remove the backing from the Vertical Insulation strip 15916 x 13 3 x 13g and attach that to the inside right of the sleeve as shown below Remove the backing from the Around Insulation strip 671 8 13 x 25 32 and attach that to the inside front of the sleeve as shown below 90 0000009006060 00000050 00 06 000 000000 RRO RR RR KR KOR ROD OQ OR OUO UU NOR 239822823282820 00 90 e 2 9 1 6 B Remove the metal rear grille and replace it with the plastic rear grille to improve unit energy efficiency The plastic grille reduces the amount of hot air discharge that recirculates through the unit Plastic rear grille Steel rear grille FIG 29 9 If the depth of your existing wall sleeve is less than or equal to 18 skip
18. cks according to Length A in the table below Depth D of the existing Length A A wall sleeve inches inches gt 18 5 D lt 19 3 4 1 3 4 B Fasten the 4 washer screws to secure the grille to the wall sleeve If you need plastic nuts to mount plastic grille to the inside of the wall sleeve there are plastic nuts in the installation kit The nuts are installed from the inside of the sleeve and are pressed into the square holes of the rear flanges Fasten the bracket to the upside of the wall sleeve using the washer screw The bracket prevents the unit from leaving the sleeve Fasten the screws and the bracket FIG 34 1934 lt D lt 22 4 18 lt D lt 18 5 3 4 I Baffle FIG 36 Remove the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 37 Slide the baffle into slots of the support blocks Wall Wall Sleeve Support Block FIG 37 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 19 LGE Internal Use Only 3 5 PROCEDURE C CONTINUED To achieve rearward slope for unit draining remove the Air conditioners covered in this manual pose an backing from the 111316 shim strips and attach them as excessive weight hazard Two or more people are shown below in Fig 39 The higher portion of shim is to needed to move and install the
19. disassembling the FRONT GRILLE remove the 6 screws which fasten the cabinet at the both sides and the top See Fig 2 Keep these for later use Figure 2 BN 2 1 3 CONTROL BOX 1 Remove the front grille Refer to section 2 1 1 2 Remove the screw which fasten the control box See Fig 3 3 Pull the control box from the barrier See Fig 3 4 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 5 Disconnect two wire housings in the control box 6 Pull the control box forward completely 7 Re install the components by referring to the removal procedure See Fig 3 Refer to the circuit diagram found on pages 27 in this manual and on the control box Figure 3 Copyright 2007 LG Electronics Inc All right reserved m7 Only for training and service purposes LGE Internal Use Only 2 2 AIR HANDLING PARTS 2 2 1 ORIFICE AND TURBO FAN 1 Remove the front grille Refer to section 2 1 1 2 Remove the cabinet Refer to section 2 1 2 3 Remove the 2 screws which fasten the evaporator at the left side and the right side See Fig 4 4 Move the evaporator sideward carefully i QI 9 ii III Vs nin AI Ah WN Figure 4 5 Remove the orifice See Fig 5 Figure 5 8 Using handheld pliers remove the clamp which secures the turbo fan See Fi
20. e circuit interrupter has not been tripped Refer to the Troubleshooting guide for reset procedure 16 LGE Internal Use Only 3 4 PROCEDURE B Redirect the louvers at the back of the wall sleeve to 60 angle as shown in the FIG 25 The use of pliers is recommended 7 3 32 wA Loue Rear Louvers Top View FIG 25 2 If the wall sleeve already has a rear grille skip to step 4 If the wall sleeve does not have a rear grille or louvered panel install the plastic grille from the kit Cut the plastic grille to 25 1 2 wide and 15 1 4 high Place the plastic grille to the inside of the wall sleeve at the rear flange x Oe RRAS 95 9090909990990 oe e eo 50 o 066 5 Xx 09 95 x 92 e 9090 x SKS x 99090 90999090 x s S 09 o t e t e co e 9506 50990 050000 90000 0905009000000 Z HOO den 50 sees ne s SS 5555555555 909 9000099099090 x 9909090 9099 669 09009900 90000 ESEESE SOSO 2004 960 oe 06000 x 6 OOO 660009 0006 neces AO 000707076 de ES 9500090509900 SRS 500500060 9050909090909 te 000 S 0 one 905060606 05 t e 5 x 99900000 SERS AS 0599 e ERA A T I 555 5 x e KX 5 es Place the pl
21. e jumpered lead and each exposed 3 After servicing the unit make an insulation metallic part on the equipment resistance test to protect the customer from being 4 The value should be over 1MO exposed to shock hazards Copyright 2007 LG Electronics Inc All right reserved 2 Only for training and service purposes LGE Internal Use Only 1 3 SPECIFICATIONS 1 3 1 LT100CSG LT1010CR LT120CSG LT1210CR LTO810CR LTO80CSG MODELS ITEMS LT100CSG LT1010CR LT120CSG LT1210CR LT0810CR LT080CSG REMARK POWER SUPPLY 10 115V 60Hz COOLING CAPACITY Btu h 9 800 11 500 8 000 INPUT W 1 110 1 310 830 RUNNING CURRENT A 10 12 0 7 5 E E R Btu w h 8 8 8 8 9 6 REFRIGERANT R 22 CHARGE g 4750 16 807 485g 17 10Z 540g 19 10Z OPERATING INDOOR C 26 7 DB 19 4 WB TEMPERATURE OUTDOOR 35 DB 23 9 WB EVAPORATOR 3 ROW 12STACKS 2 ROW 12STACKS CONDENSER 2 ROW 17STACKS L BENDING TYPE LOWVERED FIN TYPE FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 4POLES OPERATION CONTROL ELECTRIC ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION TOP DOWN PROTECTOR COMPRESSOR EXTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 2 3m 3WIRES WITH GROUNDING
22. e temperature of the room The temperature can be set within a range of 60 F to 86 F by increments of The setting appears the display POWER To turn the air conditioner ON push this button To turn the air conditioner OFF push the button again This button takes priority over any other button TIMER When you first turn it on the unit is in cool mode High fan speed SHUT OFF TIME Temperature setting at 72 F You will usually use shut off time while you sleep If unit is running use Timer to set number of hours until shut off For your sleeping comfort once Time is set the Temperature setting will raise 2 F after 30 min and once again after another 30 min Push Timer button to advance setting from 1Hour gt 2Hours gt gt 12Hours maximum START TIME If unit is off use Timer to set number of hours before unit starts Push Timer button to advance setting from 1Hour gt 2Hours gt gt 12Hours maximum MODE Push this button to shift mode of operation from COOL ENERGY SAVER gt FAN COOL Fan runs continually for normal cooling operation ENERGY SAVER The fan stops when the compressor stops cooling Approximately every 3 minutes the fan will turn on and the unit will check the room air temperature to determine if cooling is needed FAN Fan only operation VENTILATION Push the lever to the CLOSE position to cool heat or recirculate room air
23. eded ITEMS IN INSTALLATION HARDWARE You may not need all parts in the kit Discard unused parts NOTE All wall sleeves used to mount the new Air Conditioner must be in sound structural condition and have a rear grille that securely attaches to sleeve or rear flange that serves as a stop for the Air Conditioner Remove old air conditioner from existing wall sleeve Clean the interior of an existing sleeve Do not disturb seals Wall sleeve must be securely fastened in wall before 4 installing the air conditioner Use the nails or screws through sleeve into wall if needed Repaint sleeve if needed Prepare the wall sleeve for installation of the unit If you plan to use your existing wall sleeve and it is not FRIEDRICH use procedure B or C below ITEM inches Plastic grille 2634 x 1615 Vertical insulation strip 159 6 x 13g x 13 8 Around Insulation Strips 67 s 13ig X 253 5927 32 X 13 8 X 13 8 Horizontal Insulation Strip 237 32 13g x 13 16 Support Block 13 4 X 13 g X 45 16 Baffle 14 x 412 X Shim 11 346 X 1 X 34 Procedure Brand Depth inches A page 16 FRIEDRICH USC 16 23 32 White Westinghouse Frigidaire Carrier 25 2 B 52F series General Electric pages 17 18 Hotpoint 16 7 8 Whirlpool 17 1 8 or 23 Carrier 51S series 18 5 8 C Fedders Emerson 16 3 4 pages 19 Friedrich WSC or 19 3 4 Emerson Fedders 15 Trim Fr
24. effective Cooling Check cold air circulation for smooth flow Y Check outdoor coil heat exchanger amp the fan Check heat load increase Dirty indoor coil Heat exchanger operation Check gas leakage Unexpected residue Malfunction of fan Repair gas leak Overloaded Circuit Clogged air filter Replacement of unit if the unit is beyond repair Check inside gas pressure Obstruction at air outlet Stop auto air swing Correct above troubles Check clogging in refrigeration circuit Y Adjusting of refrigerant charge Malfunction of compressor Replacement of compressor Repair clogging in refrigeration circuit Satisfactory operation with temperature difference of inlet amp outlet air 44 6 50 F Copyright 2007 LG Electronics Inc All right reserved 22 Only for training and service purposes LGE Internal Use Only Fails to Start Check power source Check control switch setting Check circuit breaker and fuse Gas leakage at feeler bulb of thermostat i Check control switch
25. g 6 Figure 6 9 Remove the turbo fan with pliers or your hand without touching blades See Fig 7 10 Re install the components by referring to the removal procedures above Figure 7 2 2 2 FAN 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace Refer to section 2 2 1 Remove the 7 screws which fasten the condenser Move the condenser sideways carefully 5 Using handheld pliers remove the clamp which secures the fan 6 Remove the fan See Fig 8 7 Re install the components by referring to the removal procedures above Figure 8 RC Copyright 2007 LG Electronics Inc All right reserved 8 Only for training and service purposes LGE Internal Use Only 2 2 3 SHROUD 1 Remove the fan Refer to section 2 2 2 2 Remove the shroud See Fig 9 3 Re install the components by referring to the removal procedures above 2 3 ELECTRICAL PARTS 2 3 1 MOTOR 1 Remove the cabinet Refer to section 2 1 2 2 Remove the clamp cord and disconnect the wire housing in control box Refer to section 2 1 3 Remove the turbo fan Refer to section 2 2 2 Remove the fan Refer to section 2 2 2 5 Remove the 4 or 2 screws which fasten the motor See Fig 10 6 Remove the motor 7 Re install the components by referring to the removal procedures above Figure 9 2 3 2 COMPRESSOR 1 Remove the cabinet Refer to section 2 1 2 2 Discharge the refri
26. gerant system using a Freon Recovery System If there is no valve to attach the recovery system to install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system Disconnect the 3 leads from the compressor 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 See Fig 11 6 Remove the compressor 7 Re install the components by referring to the removal procedures above Figure 11 Co 2 3 3 CAPACITOR 1 Remove the control box Refer to section 2 1 3 2 Remove the 1 screw 3 Open the control box 4 Disconnect all the leads on the capacitor terminals 5 Re install the components by referring to the removal procedures above Figure 12 Copyright 2007 LG Electronics Inc All right reserved 9 Only for training and service purposes LGE Internal Use Only 2 3 4 POWER CORD 1 Remove the control box Refer to section 2 1 3 2 Unfold the control box Refer to section 2 3 3 3 Disconnect the grounding screw from the Base pan 4 Disconnect 2 receptacles 5 Remove a screw which fastens the clip cord 6 Pull the power cord See Fig 13 7 Re install the components by referring to the removal procedure above Use only one ground marked hole for ground connection 8 If the supply cord of this appliance is damaged
27. http biz lgservice com ROOM AIR CONDITIONER MODEL LT1230CR LT1030CR LT1030CRY6 LT1010CR LT1430CR LT1010CRY6 LT1210CR LT100CSG LT1210CRY6 LT120CSG LT0810CR LT1430CRY6 LTO80CSG LT121CSG CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel CONTENTS 1 PREFACE 2 4 REFRIGERATION 11 1 1 SAFETY 5 2 2 4 1 CONDENSER 11 1 2 INSULATION RESISTANCE TEST 2 2 4 2 EVAPORATOR 11 1 3 SPEGIFICATIONS ictor 3 2 4 3 CAPILLARY TUBE 11 1 4 FEATURES zx eta 6 3 INSTALLATION 1 5 CONTROL 6 3 1 INSTALLATION REQUIREMENTS 14 2 DISASSEMBLY INSTRUCTIONS 3 2 15 24 MECHANICAL 7 3 3 16 24 1 FRONT 7 3 4 PROCEDURE 17 DAD DABINET odes 7 3 5 PROCEDURE OC 19 2 1 3 CONTROL 7 4 TROUBLESHOOTING GUIDE 2 2 AIR HANDLING 8 4 1 OUTSIDE DIMENSIONS sss 21 2 2 1 ORIFICE
28. louvers at the back of the wall sleeve to 60 angle as shown in the FIG 32 The use of pliers is recommended 7 136 60 Rear Louvers Top View FIG 32 Remove the backing from the Horizontal Insulation strip 237 32 13 g x 1356 and attach that to the inside right of the sleeve as shown below Remove the backing from the Around Insulation strip 5927 32 13 g x 138 and attach that to the inside front of the sleeve as shown below 2 If the wall sleeve already has a rear grille skip to step 4 If the wall sleeve does not have a rear grille or louvered panel install the plastic grille from the kit Cut the plastic grille to 26 1 2 wide and 15 1 2 high or to the sleeve dimensions Place the plastic grille to the inside of the wall sleeve at the rear flange Indoor Outdoor e 06 0009000000 RESI oe 06000906 RRR t RS os 5 ee 000000 82282308290 NO ee UE MAE 00060006000 MENS poner 2s se ee m m o gt REIRES o e 81 2 FIG 35 00 090 o 90 i arenes totes 05 KS Place the plastic grille FIG 33 If the depth of your existing sleeve is less than or equal 5 to 18 skip to step 7 Otherwise cut the baffles and the support blo
29. lve B is still closed 4 If more charge is required the high side will not take it Close valve A 5 With the unit running open valve B and add the balance of the charge a 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 solder and solder 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 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pinch off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve E DENSER COMPOUND GAUG e H PRESSURE SIDE MANIFOLD CON
30. nd service purposes LGE Internal Use Only COMPLAINT CAUSE REMEDY Compressor cycles on overload Voltage Check the voltage See the limits on the preced ing page 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 Fan motor If not running determine the cause Replace if required Condenser air flow restriction Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vacuum cleaner do not damage fins or brush Clean the interior base before reassembling Condenser fins If condenser fins are closed over a large area damaged on the coil surface head pressures will increase causing the compressor to cycle Straighten the fins or replace the coil Capacitor Test capacitor Wiring Check the terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heating 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 Blower or fan Check the set screw or clamp If loose or missing correct If the blower or fan is hitting air guide rearrange the air handling parts
31. needed to move and install the unit To prevent injury or strain use proper lifting and carrying techniques when moving unit Carefully inspect location where air conditioner will be installed Be sure it will Support the weight of the unit over an extended period of time Handle air conditioner with care Wear protective gloves whenever lifting or carrying the unit AVOID the sharp metal fins of front and rear coils Make sure air conditioner does not fall during installation REQUIRED TOOLS Tight Fitting gloves 3 8 inch open end Standard screwdriver Phillips screwdriver Pliers Sharp knife 14 wrench or adjustable wrench 1 4 inch hex socket and ratchet Tape measure Electric drill 1 4 inch drill bit LGE Internal Use Only 3 2 INSTALLATION CAUTION Installing the FRIEDRICH USC sleeve ensures optional performances of the unit If you decide to keep the existing wall sleeve you have to redirect the louvers at the back of the wall sleeve Refer to FIG 23 on p15 The use of pliers is recommended If you DO NOT redirect you run the risk of poor performance or premature product failure This is not covered under the terms of the FRIEDRICH warranty Pick a location which will allow the conditioned air to blow into the area you want Good installation with special attention to the proper position of the unit will lessen the chance that service will be ne
32. only Pull the lever to the OPEN position to exhaust smoke or stale air from the room This feature is best used in conjunction with the FAN ONLY position NS When the air conditioner has been operating in the cooling and is turned off or set to the fan only position Dum wait at least 3 minutes before resetting to the cooling i operation again PULL OPEN PUSH CLOSE Copyright 2007 LG Electronics Inc All right reserved 6 Only for training and service purposes LGE Internal Use Only 2 DISASSEMBLY INSTRUCTIONS Prior to disassembling the unit make sure that the POWER is off and the power cord is unplugged from the wall receptacle 2 1 MECHANICAL PARTS 2 1 1 FRONT GRILLE pa 1 Open the inlet grille downward 2 Remove the screw which fastens the front grille 3 Pull the front grille from the right side 4 Remove the front grille See Fig 1 5 Re install the component by referring to the removal procedure Figure 1 2 1 2 1 After
33. plastic grille to the inside of the wall sleeve at the rear flange POR KOREN K RK K NHK NOP IRR KKK KKK KP BE 960 0 060600060606 0006060606 00060 0606000006 0000 00 00 0 00 0 0 00 4 9090 22S SSA PRN SEQUENCE IG E EG 06066559 FIG 20 Fasten the 4 washer screws to secure the grille to the wall sleeve If you need plastic nuts to mount plastic grille to the inside of the wall sleeve there are plastic nuts in the installation kit The nuts are installed from the inside of the sleeve and are pressing into the square holes of the rear flanges Fasten the bracket to the upside of the wall sleeve using the washer screw The bracket prevents the unit from leaving the sleeve Fasten the screws and the bracket OF FIG 21 E Remove the backing from the Vertical Insulation strip 159 16 x 13g x 13g and attach that to the inside right of the sleeve as shown below Remove the backing from the Around Insulation strip 671 g x 13 x 25 32 and attach that to the inside front of the sleeve as shown below Indoor Outdoor d 000999 S ste IRR KS e 6 e 0609090600 etate ORS ue eto 3 e
34. s A t Te x s ates AMARAS ATE KAKO IRN RG ORO RON UR KKK ROK NK NE REHM BBO 00090006 0000900000 060909060 sates 6 06006 o 9 FIG 22 Remove the metal rear grille and replace it with the plastic rear grille to improve unit energy efficiency The plastic grille reduces the amount of hot air discharge that recirculates through the unit Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Plastic rear grille Steel rear grille FIG 23 Install the new unit into the wall sleeve J To assemble trim snap the tab of each piece into the slot of the other piece as shown below Slide trim over the front of the air conditioner until trim is flush with sleeve as shown below Trim 2 ea FIG 24 CAUTION Air conditioners covered in this manual pose an excessive weight hazard Two or more people are needed to move and install the unit To prevent injury or strain use proper lifting and carrying techniques when moving unit When handling the air conditioner be careful to avoid cuts from sharp metal fins on front and rear coils Make sure air conditioner does not fall during removal f unit does not operate after installation check to be sure th
35. unit be placed in front of the rib on the base of wall sleeve To prevent injury or strain use proper lifting and carrying techniques when moving unit When handling the air conditioner be careful to avoid 1 high 3 4 High cuts from sharp metal fins on front and rear coils t e Make sure air conditioner does not fall during removal If unit does not operate after installation check to be sure the circuit interrupter has not been tripped Refer to the Troubleshooting guide for reset procedure FIG 38 EE MXXXKROOHHOOSOG SOOO XXX 0100000004 ERS PRIORI ANIMI GA NIAE EA ERN RA DE RRR 333S cJ Remove the metal rear grille and replace it with the plastic rear grille to improve unit energy efficiency The plastic grille reduces the amount of hot air discharge that recirculates through the unit Plastic rear grille Steel rear grille FIG 40 tJ Install the new unit into the wall sleeve 110 Assemble trim as described Step 6 Procedure Copyright 2007 LG Electronics Inc All right reserved 20 Only for training and service purposes LGE Internal Use Only 4 TROUBLESHOOTING GUIDE 4 1 OUTSIDE DIMENSIONS 20 3 32 499mm 4 2 PIPING SYSTEM CONDENSER COILS oe CAPI
36. vice purposes LGE Internal Use Only COMPLAINT CAUSE REMEDY Compressor will not run Voltage but fan motor runs Check voltage See the limits on the preceding page 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 Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if circuit is open Thermostat Check the position of knob If not at the coldest setting advance the knob to this setting and restart unit Check continuity of the thermostat Replace thermostat if 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 mounted Replace if open If the compressor temperature is high remove the overload cool it and retest ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V 103 5V 126 5V 208 230V 187V 253V 25 Copyright 2007 LG Electronics Inc All right reserved Only for training a

Service Manual - Appliance Factory Parts

Contents

Download Pdf Manuals

Related Search

Related Contents