LG WR-1820 Скачать руководство пользователя | Manualshive

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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

6. EXPLODED VIEW

(MECHANICAL) LWM1836BCG/BAN

135312

152302

147581A

147581B

135313

130910

554031

559011

352390

147582

359012

349001

354210

130410

552102

352113

352111

W0CZZ

269300

249950

266003

137215

146812

264110

266002

149410

35211A

352115B

352115A

550140

349480

346811

135510

349600

554160

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Содержание WR-1820

Страница 1: ...UAL General MODEL R1402 R1802 R1801H WR 1820 LWN2120BCP LWM1822BCG CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Страница 2: ...2 PIPING SYSTEM 20 4 3 TROUBLESHOOTING GUIDE 21 5 SCHEMATIC DIAGRAM 5 1 CIRCUIT DIAGRAM 26 6 EXPLODED VIEW 29 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 precautio...

Страница 3: ...LER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 2 3 FAN MOTOR 6 POLES OPERATION CONTROL ROTARY SWITCH ROOM TEMP CONTROL THERMOSTAT VERTICAL LOUVER RIGHT LEFT HORIZONTAL LOUVER UP DOWN CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR FAN MOTOR INTERNAL THERMAL PROTECTOR ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT lbs kg 117 53 120 54 OUTSIDE D...

Страница 4: ...ION inch W x H x D mm 1Ø 208 230V 60Hz 17 500 18 000 1 940 2 000 9 6 9 0 9 0 9 800 12 000 3 100 3 670 15 0 16 0 26 7 DB 19 4 WB 35 DB 23 9 WB 21 1 DB 15 6 WB 8 3 DB 6 1 WB 740 26 1 OZ 3 ROW 15 STACKS 2 ROW 19 STACKS L BENDED TYPE BLOWER PROPELLER TYPE FAN WITH SLINGER RING 1 2 2 6 POLES ROTARY SWITCH THERMOSTAT VERTICAL LOUVER RIGHT LEFT HORIZONTAL LOUVER UP DOWN SLIDE IN OUT CHASSIS 3 5 KW 230V I...

Страница 5: ...the temperature of the room Select the higher number for the lower temperature of the room The temperature is selected by positioning the knob to the desired position The 5 or 6 position is a normal setting for average conditions OPERATION OFF Turns the air conditioner off MED FAN Permits the medium fan speed operation without cooling LOW FAN Permits the low fan speed operation without cooling HIG...

Страница 6: ...the air conditioner off FAN Permits the low fan speed operation without cooling heating LOW COOL Permits cooling with the low fan speed operation HIGH COOL Permits cooling with the high fan speed operation LOW HEAT Permits heating with the low fan speed operation HIGH HEAT Permits heating with the high fan speed operation AUTO SWING ON Starts the operation of air swing OFF Stops the operation of a...

Страница 7: ... cabinet at back See Fig 2 3 Pull the base pan forward 2 1 3 CONTROL BOX 1 Remove the front grille Refer to section 2 1 1 2 Pull the base pan forward so that you can remove the 2 screws which fasten the cover control at the right side See Fig 3 3 Remove the 3 screws which fasten the control box See Fig 3 4 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 5 Di...

Страница 8: ...the 3 screws which fasten the evaporator at the left side and the top side See Fig 4 3 Move the evaporator sideward carefully 4 Remove the 2 terminals carefully See Fig 5 at Electric Heater Model 5 Remove the 3 screws which fasten the Heater Cover See Fig 5 at Electric Heater Model 6 Remove the Heater Cover See Fig 5 at Electric Heater Model 7 Remove the orifice from the air guide carefully See Fi...

Страница 9: ... control and disconnect a wire housing in control box Refer to section 2 1 3 3 Remove the blower Refer to section 2 2 2 4 Remove the fan Refer to section 2 2 3 5 Remove the 4 screws which fasten the motor See Fig 10 6 Remove the motor 7 Re install the components by referring to the removal procedure above 2 3 2 COMPRESSOR 1 Remove the cabinet Refer to section 2 1 2 2 Discharge the refrigerant syst...

Страница 10: ...er to section 2 3 3 3 Disconnect the grounding screw from the control box 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 component 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 it must be replaced by the special cord The sp...

Страница 11: ...the above removal procedure above 2 3 7 SYNCHRONOUS MOTOR 1 Remove the control box Refer to section 2 1 3 2 Unfold the control box Refer to section 2 3 3 3 Remove the crankshaft 4 Disconnect all the leads of the synchronous motor 5 Remove the 2 screws which fasten the synchronous motor See Fig 16 6 Re install the components by referring to the removal procedure above 11 Copyright 2008 LG Electroni...

Страница 12: ...efrigerant completely 4 Remove the 3 screws which fasten the evaporator at the left side and the top side 5 Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 6 Remove the evaporator 7 Re install the components by referring to notes See Fig 18 2 4 3 CAPILLARY TUBE 1 Remove the cabinet Refer to section 2 1 2 2 Remove the brace Refer to sect...

Страница 13: ...er See Fig 19B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 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 a...

Страница 14: ... Brazing equipment Pinch off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve A COMPOUND GAUGE EVAPORATOR LOW PRESSURE SIDE COMPRESSOR CAPILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS BELOW MANIFOLD GAUGE B Figure 19A Pulling Vacuum Figure 19B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Страница 15: ...event air and insects from getting into the room 8 The power cord must be connected to an independent circuit The green wire must be grounded 9 Connect the drain tube to the base pan hole in the rear side if you need to drain consult a dealer Plastic hose or equivalent may be connected to the drain tube 3 2 HOW TO USE THE REVERSIBLE INLET GRILLE The grille is designed to clean the filter both upwa...

Страница 16: ...s must open sufficiently to allow a clear vertical opening of 18 from the bottom of the upper sash to the window stool 2 The stool offset height between the stool and sill must be less than 1 1 4 3 4 INSTALLATION KITS CONTENTS 29 to 41 18 min Offset Less than 1 1 4 Sill Exterior Interior wall 26 min Without frame curtain Stool Foam PE Adhesive Backed Foam PE Adhesive Backed Type C 5 Type D 2 Type ...

Страница 17: ... to the underside of the window sash 4 Remove the backing from Foam PE with 3 holes and attach it to the bottom of the Top retainer bar 5 Attach the Top retainer bar onto the top of the cabinet with 3 screws Type A 6 Insert the Frame guides into the bottom of the cabinet 7 Insert the Frame Curtain into the Top retainer bar and Frame guides 8 Fasten the curtains to the unit with 10 screws Type A at...

Страница 18: ...nd the lock nut Be sure the cabinet 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 NOTE 1 Do not pull the window sash down so tightly that the movement of Frame curtain is restricted Attach the cabinet to the window stool by driv...

Страница 19: ...ut the Foam strip to the proper length and insert between the upper window sash and the lower window sash See Fig 31 9 Attach the Window locking bracket with a screw Type C See Fig 32 10 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Fig 33 11 Lift the inlet grille and secure it w...

Страница 20: ...ons in the refrigeration system Refer to Fig 35 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LIME COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LIQUID PRESSURE DROP ROOM AIR HEAT LOAD VAPOR INLET HOT DISCHARGED AIR LIQUID OUTL...

Страница 21: ...outdoor coil heat exchanger the fan operation Check gas leakage Repair gas leak Replacement of unit if the unit is beyond repair Satisfactory operation with temperature difference of inlet outlet air 7 10 C Check heat load increase Unexpected residue Overloaded Circuit Check of inside gas pressure Adjusting of refrigerant charge Malfunction of compressor Replacement of compressor Check of cold air...

Страница 22: ...capacitor Irregular motor resistance Irregular motor insulation Replacement of fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermostat setting Loose terminal connection Improper wiring Irregular motor resistance Irregular motor insulation Replacement of compressor Motor damaged Drop of power voltage Check capacitor Replacement Only compressor fails...

Страница 23: ...om of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Check voltage See limits on this page 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 Check grommet...

Страница 24: ...f open or grounded replace the compressor Check the compressor overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool it and retest Check the voltage See the limits on the preced ing page If not within limits call an electrician Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool ...

Страница 25: ...ssing correct If the blower or fan is hitting air guide rearrange the air handling parts Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and barrier Set the knob to HIGH COOL or LOW COOL while rocker switch is ON Check terminals If loose repair or replace Check the synchronous motor for open circuit Capacitor Wiring Refrigerating system Air filter Exhaust...

Страница 26: ...L BR RD BK BL BR OR YL COMP YL OR T BLOCK BK R S C YL WH ROCKER SWITCH WH BR 1 2 3 BK BR SYNC MOTOR CAPACITOR BK RD BL BK RD BL BR OLP 5 1 3 8 7 6 2 WIRING DIAGRAM 3584AR2206V 4 9 POWER INPUT BK BR Plain WH BL Ribbed GN GN YL LOCATION NO 1 2 3 4 5 6 7 8 9 Q TY PER SET 1 1 1 1 1 1 1 1 1 REMARKS DESCRIPTION POWER CORD ROTARY SWITCH FAN MOTOR CAPACITOR THERMOSTAT COMPRESSOR OVERLOAD PROTECTOR TERMINA...

Страница 27: ...K BR Ribbed Plain COMP LAMP SYNC M MOTOR WH BL POWER INPUT Plain GN YL BK BR Ribbed 3854AR2206Y BL BL RD BK R C S YL YL RD BK BL RD ROTARY SWITCH BK BL L 7 1 8 6 4 5 3 2 H M OR BR OR BR BL THERMOSTAT CAPACITOR YL WH BK WH BR BK BR ROCKER SWITCH BK RD BK BL T B2 F C H 2 3 1 WIRING DIAGRAM T B1 LOCATION NO 1 2 3 4 5 6 7 Q TY PER SET 1 1 1 1 1 1 1 REMARKS DESCRIPTION POWER CORD ROTARY SWITCH FAN MOTO...

Страница 28: ... BK BL RD BK L M OR BR OR BR BK BR SYNC MOTOR WH BR ROCKER SWITCH THERMOSTAT WH BK YL BL RD RD YL C L H 1 3 2 R S C BR YL O L P BK RD RD RD FUSE LINK BI METAL THERMOSTAT HEATER BL BK RD BL BK BR Plain WH BL Ribbed GN GN YL 1 3 4 5 6 8 2 7 9 LOCATION NO 1 2 3 4 5 6 7 8 9 Q TY PER SET 1 1 1 1 1 1 1 1 1 REMARKS DESCRIPTION POWER CORD ROTARY SWITCH FAN MOTOR CAPACITOR THERMOSTAT OVERLOAD PROTECTOR COM...

Страница 29: ...ernal Use Only 6 EXPLODED VIEW MECHANICAL LWM1836BCG BAN 135312 152302 147581A 147581B 135313 130910 554031 559011 352390 147582 359012 349001 354210 130410 552102 352113 352111 W0CZZ 269300 249950 266003 137215 146812 264110 266002 149410 35211A 352115B 352115A 550140 349480 346811 135510 349600 554160 ...

Страница 30: ...P NO 3828AR3735R MARCH 2008 ...

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