LG BG-81A User's Manual
Contents
1. AB Figure 4 Remove the orifice See Fig 5 Figure 5 Using handheld pliers remove the clamp which secures the turbo fan See Fig 6 Remove the turbo fan with pliers or your hand without touching blades See Fig 7 Re install the components by referring to the removal procedures above k o Figure 7 2 2 2 FAN Remove the cabinet Refer to section 2 1 2 Remove the brace Refer to section 2 2 1 Remove the 7 screws which fasten the condenser Move the condenser sideways carefully Using handheld pliers remove the clamp which secures the fan Remove the fan See Fig 8 Re install the components by referring to the removal procedures above Figure 8 N Or gt 41 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 2 3 2 COMPRESSOR 12. gom od BG 101A LT1010CR LT121CSG LT1210CR LT0810CR LTO80CSG REMARK ITEMS BG 81A 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 2 12 0 7 5 E E R Btu w h 8 8 8 8 9 6 REFRIGERANT 8 22 CHARGE g 4700 16 602 5009 17 60Z 5450 19 202 OPERATING INDOOR C 26 7 DB 19 4 WB TEMPERATURE OUTDOOR 35 DB 23 9 WB EVAPORATOR 3 ROW 12STACKS 2ROW12STACKS CONDENSER 2ROW 17STACKS L BENDING TYPE LOWERED FN 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 WIRES WITH GROUNDING ATTACHMENT PLUG CORD CONNECTED TYPE LCDI DRAIN SYSTEM SPLASHED BY FAN SLINGER NET WEIGHT lbs kg 78 35 80 36 73 83 DIMENSION inch 24 1413 32 x 20 3 32 WxHxD mm 610 x 366 x 499 SLEEVE DIMESION inch 25 7 s 15 17 32 16 23 32 OPTIONAL WxHxD mm 656 x 394 x 425 PART SLEEVE DEPTH inch 20 1 2 WITH FRONT GRILLE mm 521 1 3 2 FOR LT1030CR LT1230CR BG 123A LT1430CR
3. 20 4 2 PIPING SYSTEM ocho 20 4 3 TROUBLESHOOTING GUIDE 21 5 SCHEMATIC DIAGRAM 5 1 CIRCUIT 1 27 6 EXPLODED 27 7 REPLACEMENT PARTS LIST 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 When servicing the unit turn off the air conditioner and unplug the power cord 2 Observe the original lead dress If a short circuit is found replace all parts which have been overheated or damaged by the short circuit 3 After servicing the unit make an insulation resistance test to protect the customer from being exposed to shock hazards 1 2 INSULATION RESISTANCE TEST 1 Unplug the power cord and connect a jumper between 2 pins black and white 2 The grounding conductor green or green amp yellow is to be open 3 Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment 4 The value should be over 1MO 1 3 SPECIFICATIONS 1 3 1 FOR BG 101A LT1010CR LT121CSG LT1210CR LTOS10CR LTOB0CSG BG 81A
4. 35987201 bPANELCONTROL 1 EA 238310 6 3831 10037 1 EA 24898 48032822011 _CONTROL BOX ASSEWELY SINGLE 1 EA PWB PCB ASSEMBLY MAIN 1 352115 _ 5211 29026 TUBEASSEMBLY EVAPORATORIN 1 EA 352116 5211 24022 TUBE ASSEMBLY SUCTION SINGLE 1 EA 352380 52384200338 1 EA FAN TURBO 132100 320 2007 FRAME O O 1 349600 4960 20008 1 m gt rm gt m rm gt 2 EA EA EA EA EA EA EA EA EA MODEL LT1230CR Location No PartNo Description 130410 131400 135303 135312 EA 147581 147582 1 147582 2 149980 237200 238310 249950 263230 EA EA EA EA EA EA EA EA EA 552102 5210A23523A 5403A20183P 2520 684016 5900AR1173A m gt ITI gt ITI ITI gt gt m gt EA m gt EA EA EA 567502 6750U LOO5A 731273 3127A20017E INSTALL PART ASSEMBLY SINGLE m gt 2H01451M 3H02932B 3530A20101A 5230A20041A 3210A20075A 4960A20008A m gt EA EA EA EA EA Remark EA EA EA EA EA EA EA L EA EA EA EA EA EA EA EA Ea EA EA EA EA EA EA EA E
5. MODELS LT1030CR LT1230CR BG 123A LT1430CR REMAR ITEMS POWER SUPPLY 10 230 208V 60Hz COOLING CAPACITY Btu h 10 000 9 800 11 500 11 200 13 200 12 800 INPUT W 1 060 1 040 1 310 1 270 1 550 1 500 RUNNING CURRENT A 4 7 5 2 6 0 6 4 7 1 7 6 E E R Btu W h 9 4 9 4 8 8 8 8 8 5 8 5 OPERATING INDOOR C 4809 16 9 2 4850 17 102 5450 19 202 TEMPERATURE OUTDOOR 26 7 DB 19 4 WB REFRIGERANT R 22 0 35 DB 23 9 WB EVAPORATOR 3 ROW 125 5 3 ROW 12STACKS 3 ROW 12STACKS CONDENSER 2ROW 17STACKS L BENDING TYPE LOUVERED FINTYPE FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING HEATING 3 3 FAN MOTOR 6 POLES 4POLES 4POLES OPERATION CONTROL ELECTRIC ROOM TEMP CONTROL THERMISTOR VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION TOP DOWN COMPRESSOR EXTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR asema sa 1 4m 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 20 3 32 W x Hx D mm 610 x 366 x 499 SLEEVE DIMESION inch 25 7 8 1517 32 16 23 32 OPTIONAL Wx Hx mm 656 x 394 x 425 PART SLEEVE DEPTH inch 20 1 2 WITH FRONT GRILLE mm 521 1 4 FEATURES Designed for cooling only Side air intake side cooled air discharge Powerful and quiet cooling
6. 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 1934 lt D lt 22 4 Baffle Aj FIG 34 Remove the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 35 Slide the baffle into slots of the support blocks 7 32 Wall Wall Sleeve Support Block FIG 35 Fasten the screws and the bracket FIG 32 18 PROCEDURE C CONTINUED To achieve rearward slope for unit draining 3 m remove the backing from the 111346 shim Air conditioners covered in this manual pose an strips and attach them as shown below in Fig excessive weight hazard Two or more people are 37 The higher portion of shim is to be placed needed to move and install the unit 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 Make sure air co
7. 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 7 TEMPERATURE SETTING Use this button to automatically control the 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 butt
8. 147582 1 4758A30045A LOUVERVERTICAL 1475822 4758A30045B LOUVERVERTICAL 4 149980 49984200034 SHROUD 237200 6035987201 PANELCONTROL Tt 238310 3831 10037 ESCUTCHEON tt 24990 2922011 CONTROLBOXASSEMBLYSINGLE 1 203230 63238200045 THERMISTORASSEMBLY 1 264110 64114200667 POWER CORD ASSEMBLY 1 1 1 1 1 1 2 4 1 1 1 1 1 1 FILTER AIR 1 MODEL BG 81A Location No Description 130410 BASE ASSENBLY SINGLE 131400 CABINET 135303 GRILLE INLET 135312 GRILLE ASSEMBLY FRONT SINGLE 147581 LOUVER HORIZONTAL 147582 1 LOUVER VERTICAL 147582 2 LOUVER VERTICAL 147900 BARRIER SINGLE 149980 SHROUD 237200 PANEL CONTROL 238310 ESCUTCHEON 249950 CONTROL BOX ASSEMBLY SINGLE 263230 THERMISTOR ASSEMBLY 264110 POWER CORD ASSEMBLY 267110 REMOTE CONTROLLER ASSEMBLY 268711 1 PWB PCB ASSEMBLY DISPLAY 268711 2 PWB PCB ASSEMBLY MAIN 346811 MOTOR ASSEMBLY SINGLE 349480 ORIFICE 352113 TUBE ASSEMBLY DISCHARGE SINGLE 352115 TUBE ASSEMBLY EVAPORATOR IN 35211A TUBE ASSEMBLY SUCTION SINGLE 352380 AIR GUIDE 354210 EVAPORATOR ASSEMBLY FIRST 359012 FAN TURBO 435301 GRILLE REAR 552113 TUBE ASSEMBLY CONDENSER OUT 550410 DAMPER COMPRESSOR 552102 TUBE CAPILLARY BENDING 554031 CONDENSER ASSEMBLY BENDING 554160 COMPRESSOR SET 559011 FAN ASSEMBLY AXIAL 567502 O L P 731273 INSTALL PART ASSEMBLY SINGLE WOCZZ CAPACITOR DRAWING W48602 CLAMP SPRING 4
9. 1 582102 5210A24619A TUBECAPILLARYBENDNG 1 EA 554031 5403 20183 CONDENSERASSEMBLYBENDNG 1 559011 S5900ARTI73A FANASSEMBLYAXAL 1 EA 567502 67500100 1 EA _ 731273 3127A20017E INSTALL PART ASSEMBLY SINGLE 1 WOCZZ 2 01451 CAPACITORDRAWNG 1 EA LG Electronics Inc February 2007 P No 3828A20294T Printed in China
10. Remove the cabinet Refer to section 2 1 2 2 Discharge the refrigerant 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 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 9 Figure 11 Figure 12 2 3 4 POWER CORD Remove the control box Refer to section 2 1 3 Unfold the control box Refer to section 2 3 3 Disconnect the grounding screw from the Base pan Disconnect 2 receptacles Remove a screw which fastens the clip cord Pull the power cord See Fig 13 Re install the components by referring to the removal procedure above Use only one ground marked hole G gt connection for ground If the supply cord of this appliance is damaged it must be replaced with th
11. and ratchet Tape measure Electric drill 1 4 inch drill bit 9 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 needed 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 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
12. backing from the Around Insulation use of pliers is recommended strip 671 5 X 135 x 25 32 and attach that to the inside front of the sleeve as shown below 7 3 2 Indoor Outdoor 5 a Rear Louvers 2222222222 Top View 22211023 FIG 24 9 1 2 6 FIG 27 E If the wall sleeve already has a rear grille skip If the depth of your existing wall sleeve is less to step 4 If the wall sleeve does not have a rear or equal to 18 skip to step 7 Otherwise 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 cut the baffles and the support blocks according to length A in the table below inside of the wall sleeve at the rear flange m 9 Depth D of the existing Length A wall sleeve inches inches Support Block NI AAA NARA AAC ERE 18 lt D lt 18 5 s 3 4 00 u ua 55525506004 18 78 D lt 19 2 4 1 3 4 Baffle 19 9 lt D lt 22 4 FIG 28 Place the plastic grille FIG 25 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
13. 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 11 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 Valve 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
14. 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 or Fasten the screws and the bracket FIG 26 PROCEDURE B CONTINUED 1255 the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 29 Slide the baffle into slots of the support blocks Wall Wall C Sleeve 1 i ae Support Block FIG 29 Install the new unit into the wall sleeve ga 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 17 3 5 PROCEDURE C Redirect the louvers at the back of the wall sleeve to 60 angle as shown in the FIG 30 The use of pliers is recommended Remove the backing from the Horizontal Insulation strip 237 32 13 x 1356 and attach that to the in
15. of compressor Replacement of compressor Repair clogging in refrigeration circuit Satisfactory operation with temperature difference of inlet amp outlet air 44 6 50 F 21 Fails to Start Check power source Check control switch setting Check circuit breaker and fuse Gas leakage at feeler bulb of thermostat Check control switch 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 22 Regular but fails to start Replacement of compressor locking of rotor metal COMPLAINT CAUSE REMEDY Fan motor will not run No power Check vo
16. 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 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 H PRESSURE SIDE MANIFOLD CON EXTERNAL VACUUM PUMP s CHARGI
17. sleeve and it is not FRIEDRICH use procedure B or C below ITEM inches Plastic grille 2634 1615 Vertical insulation strip 159 6 138 138 Around Insulation Strips 67 6 138 X 25 32 5927 32 X 13 8 X 138 Horizontal Insulation Strip 237 13 x 13 16 Support Block 13 4 X 13 g X 45 16 Baffle 14 x 4 2 X Shim 11 346 X 1 X 34 Procedure Brand Depth inches A page 16 FRIEDRICH USC 16 23 32 White Westinghouse Frigidaire Carrier 2 2 B 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 Frame Washer Screw Nuts Plastic Grille Rear HOW TO INSTALL 1 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 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
18. 35300 GRILLE REAR 152302 FILTER AIR et lt m rm rm gt m m jr gt gt gt mim irm gt m rm rm rm gt gt m rm m Im gt gt gt gt gt gt MODEL LTO810CR Location No PartNo Description Remark PWB PCB ASSEMBLY DISPLAY EA 550440 4H0092C DAMPERCOMPRESSOR 1 WOCZZ 2 01451 CAPACITORDRAWING 1 2 EA EA EA rm rrr Eri m m m ITI m m 2 gt gt gt MODEL 1 1080 50 Location No PartNo Description m gt gt rri rri 1111 imm rri m m m m m gt gt gt gt gt gt gt gt m gt mimm m m ITI m gt gt gt gt gt gt gt gt m gt m m rm ITI MODEL BG 101A Location No PartNo Description ET ET ET ET m m 11 ITI mim ITI gt gt gt gt gt gt gt gt 6750U LO05A gt ITI ITI ITI ITI 1 1 1111 mm m ITI ITI gt gt gt gt gt gt gt gt gt gt gt gt gt m gt gt e MODEL LT1010CR Location No PartNo Description Qty Remark 130410 3041A10046 BASEASSENBLYSINGLE 1 EA 191400 3090420017 _ 135303 3530A10272A 1 EA 13572 3531A18004B GR
19. A EA EA EA EA EA EA EA EA EA EA EA EA EA gt MODEL LT1430CR Location PartNo Description Qty PWB PCB 55 WOCZZ 2H01451M CAPACITORDRAWNG 1 EA MODEL BG 123A Location No PartNo Description Qty Remark 131400 309020037 11 EA 135303 35304102724 GRILLEINLET 1 EA 135312 3531 180048 GRILLEASSEMBLY FRONT SINGLE 1 147581 4758 2005 LOUVERHORIZONTAL 1 149980 4998A20008A SHROUD EA 237200 MGC3508720 PANELCONTROL 1 23330 3831 10037 ESCUTCHEON 11 249950 032922011 CONTROLBOXASSEMBLYSINGLE 1 267110 6711 20093 REMOTE CONTROLLER ASSEMBLY 1 268711 1 0852301 PWB PCB ASSEMBLYDISPLAY 1 2687112 0851801 PWB PCB ASSEMBLYMAN 1 EA 346811 4681A201758 MOTORASSEMBLYSINGLE 1 EA 35211A 5211A24022A TUBE ASSEMBLY SUCTION SINGLE 1 352880 52384200538 AIRGUIDE 1 EA 354200 5421A20071K EVAPORATORASSEMBLYFIRST 1 36902 590020000 FANTUROO 1 435301 0 33964101 GRILLE REAR 1 EA 552113 5211420560 TUBEASSEMBLY CONDENSEROUT 1 550440 4 009826 DAMPERCOMPRESSOR
20. ILLE ASSEMBLY FRONT SINGLE 1 Ea 4158 20058 gt mim gt 263230 6323A200048 THERMISTOR ASSEMBLY 264110 6411A20056T POWER CORD ASSEMBLY 267110 6711 20093 REMOTE CONTROLLER ASSEMBLY 268711 1 EBR30852301 PWB PCB ASSEMBLY DISPLAY 268711 2 EBR30851801 PWB PCB ASSEMBLY MAIN ITI ITI 346811 4681A20175B MOTOR ASSEMBLY SINGLE 349480 4948A20045A ORIFICE ITI 352113 5211A21421G TUBE ASSEMBLY DISCHARGE SINGLE 352115 5211A29026A TUBE ASSEMBLY EVAPORATOR IN 35211 5211 24022 TUBE 5 50 SINGLE 352380 5238A20033B AIR GUIDE 354210 5421A20071K EVAPORATOR ASSEMBLY FIRST ITI ITI ET ITI 1 ITI ITI ITI gt EA A A A EA ITI ITI MODEL LT1210CR Location No PartNo BDescripion EA AIR GUIDE MDX33964101 550440 4H00982C 508 1 554160 6 25200 016 COMPRESSORSET o 1 2H01451M 435300 3530A20101A GRILEREAR 1 EA MODEL LTIZICSG Location No _PartNe __ ____ ____Deseription__ ty_ Remark 135303 3530M0272M4 GRILEINET 1 010 147581 47584200584 LOUVER HORIZONTAL 1 EA 147582 1 4758 30045 LOUVER VERTICAL 2 EA 1475822 4758A30045B LOUVER VERTICAL 4 EA 149980 14998A2003A SHROUD 1 EA 237200
21. LG ROOM AIR CONDITIONER CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE MODEL BG 81A LT0810CR LT080CSG BG 101A LT1010CR LT1030CR LT1210CR LT121CSG BG 123A LT1230CR LT1430CR CONTENTS 1 PREFACE 1 1 SAFETY PRECAUTIONS 1 2 INSULATION RESISTANCE TEST 2 1 3 SPECIFICATIONS 1 4 FEATURES 1 5 CONTROL 5 DISASSEMBLY INSTRUCTIONS 2 1 MECHANICAL 1 6 2 1 1 FRONT GRILLE 6 21 2 CABINET eterne 6 2 1 3 CONTROL 6 2 2 AIR HANDLING 7 2 2 1 ORIFICE HEATER ASSY AND TURBO FAN 2 2 2 FAN 2 2 3 SHBOUD eene mes 8 2 3 ELECTRICAL PARTS 2 31 MOTOR RISO 8 2 3 2 COMPRESSOR 2 3 3 CAPACITOR 2 3 4 POWER CORD 2 3 5 THERMISTOR 1 PREFACE 2 4 REFRIGERATION CYCLE cara 10 2 4 1 CONDENSER cositas 10 2 4 2 10 2 4 3 CAPILLARY 10 3 INSTALLATION 3 1 INSTALLATION REQUIREMENTS 13 INSTALLATION fase dates 14 3 3 PROCEDURE 15 3 4 PROCEDURE Bios iot 16 3 5 PROCEDURE Ci 18 4 TROUBLESHOOTING GUIDE 4 1 OUTSIDE
22. NG Cee CYLINDER Figure 17A Pulling Vacuum Figure 17B Charging 12 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 8 515 468 mm Air Conditioner FIG 18A SON 656 mm aw 394 mm aluminum metal grille 16 2373 425 mm FRIEDRICH USC Wall Sleeve FIG 18B 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 INSTALLA
23. TION HARDWARE 27 2002 227047 22 2 207 200 om 22 22222 22 227 27902002 Z I 27 27 772002070 77000004 1 Z 222222 2 6 2 Size options ITEM NAME OF PARTS PLASTIC GRILLE VERTICAL INSULATION STRIP AROUND INSULATION STRIPS HORIZONTAL INSULATION STRIP SUPPORT BLOCK BAFFLE TRIM FRAME SHIM PLASTIC NUTS AND WASHER SCREWS o lt DO ein elin 4 9 6 amp 69 S 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 Air conditioners covered in this manual pose an excessive weight hazard Two or more people are needed to move 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 Standard screwdriver Phillips screwdriver Pliers Sharp knife 3 8 inch open end wrench or adjustable wrench 1 4 inch hex socket
24. UGH COMPRESSOR LIQUID PRESSURE LIQUID OUTLET DROP LIQUID REFRIGERANT i YZZ HIGH PRESSURE VAPOR CAPILLARY TUBE 27 Figure 41 RSS Low PRESSURE VAPOR 20 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 Ineffective 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
25. bo 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 23 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 remo
26. e 2 1 3 CONTROL BOX 1 2 Remove the front grille Refer to section 2 1 1 Remove the screw which fasten the control box See Fig 3 Pull the control box from the barrier See Fig 3 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals Disconnect two wire housings in the control box Pull the control box forward completely Re install the components by referring to the removal procedure See Fig 3 Refer to the circuit diagram found on pages 26 in this manual and on the control box SS Figure 1 Figure 2 Figure 3 2 2 AIR HANDLING PARTS 2 2 1 ORIFICE AND TURBO FAN 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 Move the evaporator sideward carefully ak gt lt Th 4 SUG A
27. e factory authorized and specified cord 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 13 Figure 14 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 side and the right side 4 Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 5 Remove
28. e sleeve as shown below Remove the backing from the Around Insulation strip 671 138 x 25 32 and attach that to the inside front of the sleeve as shown 3555555555 255955006055 500600006 2 4 I gt 9 MIS 195002 9 1 e 15 Install the new unit into the wall sleeve Toassembletrim tpthetabofeachpiece 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 23 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 PROCEDURE B 4 Remove the backing from the Vertical Insulation strip 15946 X 13 s 138 and attach that to the Redirect the louvers at the back of the wall inside right of the sleeve as shown below sleeve to 60 angle as shown in the FIG 8 The Remove the
29. 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 Copper tubing Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and barrier 25 5 SCHEMATIC DIAGRAM 5 1 CIRCUIT DIAGRAM MODEL BG 101A LT1010CR LT121CSG LT1210CR LT0810CR LTO80CSG BG 81A LT1030CR LT1230CR BG 123A LT1430CR WIRING DIAGRAM CN MOTOR CN MAIN1 CN DISP1 1 CN MAIN2 CN DISP2 O DISPLAY PCB d ASSEMBLY POWER CN TH1 WH BD Ribbed FUSE 2 250V T2A 115V T2A E RY COMP 40 CO MAIN PCB ASSEMBLY BK BR Plain AIR FILTER ASSEMBLY 3854AR3629N 26 6 EXPLODED VIEW e MODEL BG 101A LT1010CR LT121CSG LT1210CR LTO810CR LTO80CSG BG 81A LT1030CR LT1230CR BG 123A LT1430CR 7 REPLACEMENT PARTS LIST MODEL LT1030CR Location No PartNo Description Qty Remark 130410 3041A10046 BASEASSENBLYSINGLE 1 131400 3090 20017 CABINET 135303 3530 10272 GRILLEJNLET 1 185312 3531A18004B GRILLE ASSEMBLYFRONT SINGLE 1 147581 47584200584 LOUVERHORIZONTAL 1
30. ltage 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 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 Tur
31. nditioner 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 36 NNNM XXX Install the new unit into the wall sleeve 19 Assemble trim as described in Step 6 Procedure A 19 4 TROUBLESHOOTING GUIDE 4 1 OUTSIDE DIMENSIONS 20 3 32 499mm 4 2 PIPING SYSTEM CONDENSER COILS oe CAPILLARY 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 lt S OUTSIDE COOLING lt AIR FOR REFRIGERANT MOTOR PASS THRO
32. on to shift mode of operation from COOL ENERGY SAVER FAN COOL e 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 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 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 operation again PULL OPEN PUSH CLOSE 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 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 2 1 2 CABINET 1 After 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 us
33. 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 515 Series 25 3 4 16 7 8 18 5 8 1 3 4 High UNIT Wall Sleeve SHIM PLACEMENT UNIT INSTALLATION FIG 19 14 PROCEDURE A 1 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 plastic grille to the inside of the wall sleeve at the rear flange 2222822222 2 255555 FIG 20 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 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 or FIG 21 E Remove the backing from the Vertical Insulation strip 159 16 x 138 13g and attach that to the inside right of th
34. side 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 7 185g 60 Rear Louvers Top View FIG 30 Indoor Outdoor 5284 555550650 25522500500 e e ig 55 256559050000 o 50 5550 2 22 t 00509509090 9 0 2 555555 2222222 2 59 ee X ORO NRI NO 0090 2 222 520525050500 50220 25 55522509 000606600 55555055 2 522222050 2 8 FIG 33 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 If the depth of your existing sleeve is less than or equal to 18 skip to step 7 Otherwise cut the baffles and the support blocks according to Length A in the table below Length A inches Depth D of the existing wall sleeve inches 2 20 25250 222222 18 D lt 18 3 4 18 55 lt D lt 19 3 4 1 3 4 FIG 31 Place the plastic grille
35. the evaporator 6 Re install the components by referring to the notes See Fig 16 J 11 11 XZ lt Il 14 Q SSR 0 11 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 10 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 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 B up to valve C by means of the manifold and
36. ve 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 24 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
Download Pdf Manuals
Related Search