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9 Room Air Conditioner

Installation

How to Install(Models without Installation Kit)

1. Remove the screws that fasten the cabinet

at both sides and at the back.

2. Slide the unit from the cabinet by gripping

the base pan handle and pulling forward
while bracing the cabinet.

3. Remove EPS Material.

4. Slide the unit into the cabinet.

CAUTION: For security pur-

pose, reinstall screw at cabi-

net's sides.

5. Attach the front grille to the cabinet by

inserting the tabs on the grille into the tabs
on the fornt of the cabinet. Push the grille in
until it snaps into place.

6. Lift the inlet grille and secure it with a screw

through the front grille.

Shipping screws

TIMER ENER

SAVER MOD

On/Off

Fan Coo

Heat

TIMER ENER

SAVER MOD

On/Off

Fan Coo

Heat

EPS Material

TIMER ENER

SAVER MOD

On/Off

Fan Coo

Heat

Power cord

Screw

TIMER ENERGY

SAVER MODE

On/Off

Fan Cool

Heat

TIMER

ENERGY

SAVER

MODE

On/Off

Fan

Cool

Heat

Содержание LW1214HR

Страница 1: ...LG Room Air Conditioner SERVICE MANUAL LG MODEL LW1214HR CAUTION website http www lgservice com BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Страница 2: ...in pipe 7 How to Install Models without Installation Kit 8 How to Install Models with Installation Kit 9 Suggested Tool Requirements 11 Operation 14 Features 14 Control Locations Function of Controls 14 Disassembly 15 Mechanical Parts 15 Air Handling Parts 16 Electrical Parts 17 Refrigerating Cycle 19 Schematic Diagram 22 Wiring Diagram 22 Troubleshooting Guide 23 Piping System 23 Troubleshooting ...

Страница 3: ...indications Meanings of symbols used in this manual are as shown below WARNING CAUTION This symbol indicates the possibility of death or serious injury This symbol indicates the possibility of injury or damage to property only WARNING Installation Do not use damaged power cord plugs or a loose socket There is risk of fire or electric shock Always use the power plug and socket with the ground termi...

Страница 4: ...ing and installing the product Sharp edges could cause injury Be especially careful of the case edges and the fins on the condenser and evaporator Do not store or use flammable gas or com bustibles near the air conditioner There is risk of fire or failure of product Be sure the installation area does not deterio rate with age If the base collapses the air conditioner could fall with it causing pro...

Страница 5: ... 7 8 380 14 31 22 D mm inch 525 22 11 16 567 22 5 16 Model Dimension LWHD7000HR LWHD1200HR Outside Dimensions This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual Service Manual 5 ...

Страница 6: ... 5 8 5 5 Rated Amps Heating 14 0 15 3 Features Thermostat Control Thermistor Air Diflection 4 Way Remote controller Yes Auto swing Auto Restart Yes Energy saver Fuction Yes Timer 24Hr On Off Filter Alarm Function Yes Sleep Fan Speed Cooling Heating 2 2 Fan Only 2 Compressor Rotary In Door Fan Type BLOWER Type Air Discharge Side by side Outdoor Vent Exhaust Yes Rear grille Chassis Type Slide In Out...

Страница 7: ...oints when the installation is finished 1 Grounding wire Green or Green and Yellow is provided in the power cord The green wire must be grounded 2 Connect to a single outlet 15A circuit or 20A circuit for Electric Heater Model 3 To avoid vibration or noise make sure the air conditioner is installed securely 4 Avoid placing furniture or draperies in front of the air inlet and outlet In humid weathe...

Страница 8: ...t cabi net s sides 5 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the fornt of the cabinet Push the grille in until it snaps into place 6 Lift the inlet grille and secure it with a screw through the front grille Shipping screws TIMER ENERG Y SAVER MODE On Off On Off Fan Cool Heat TIMER ENER GY SAVER MODE On Off On Off Fan Cool Heat EPS Material TIMER ...

Страница 9: ...B 2 GASKET 3 WALL 4 DETAILS 5 1 x 30 ROUND HEAD WOOD SCREWS A B C D E F H I 625mm 392mm 280mm 30mm 0 25mm OVER 420mm 5 10mm 5 5mm 245 8 157 16 111 32 11 16 0 1 OVER 1617 32 3 16 3 8 3 16 3 16 27 to 39 16 min Stool Interior wall 235 8 min Without frame curtain Offset 1 2 to 11 4 Sill Exterior 1 2 3 4 8 9 14 11 7 6 10 5 13 12 Top retainer bar is in the product package NO NAME OF PARTS Q TY 1 FRAME C...

Страница 10: ...ET 3 WALL 4 DETAILS 5 1 x 30 ROUND HEAD WOOD SCREWS A B C D E F G H J K 495mm 366mm 250mm 30mm 0 25mm OVER 420mm 12mm 32mm 5 10mm 0 5mm 191 2 147 16 10 11 16 0 1 OVER 1617 32 1 2 11 4 3 16 3 8 0 3 16 2 Installation Kits Contents 22 to 36 Stool Interior wall 181 2 min Without frame curtain Offset 1 2 to 11 4 Sill Exterior 15 min With frame curtain 1 2 3 4 8 9 14 11 7 6 10 5 13 12 Top retainer bar i...

Страница 11: ... Frame Curtain into the upper guide and frame guides 9 Fasten the curtains to the unit with 4 Type A screws at the both sides Cabinet Installation 1 Open the window Mark a line on center of the win dow stool or desired air conditioner location Carefully place the cabinet on the window stool and align the center mark on the bottom front with the center line marked in the window stool 2 Pull the bot...

Страница 12: ...e broken easily 5 Attach the sill support to the cabinet track hole in relation to the selected position using 2 Type A screws in each support See Figure 5 6 The cabinet should be installed with a very slight tilt about 1 2 downward toward the outside See Figure 6 Adjust the bolt and the nut of Sill Support for bal ancing the cabinet 7 Attach the cabinet to the window stool by driving the screws T...

Страница 13: ... Type A at the cabinet s sides 11 Cut the Foam Strip to the proper length and insert between the upper and lower window sash See Fig 9 12 Attach the window Locking Bracket with a type C screw See Fig 10 13 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cab inet Push the grille in until it snaps into place See Fig 11 14 Lift the inlet gr...

Страница 14: ... this button timer is set as follows 1Hour 2Hours 3Hours 4Hours 5Hours 6Hours 7Hours 8Hours 9Hours 10Hours 11Hours 12Hours Cancel 4 FAN SPEED SELECTOR Everytime you push this button it is set as follows Hi Low Hi 5 ROOM TEMPERATURE SETTING BUTTON This button can automatically control the temperature of the room The temperature can be set within a range of 60 F to 86 F by 1 F 6 ENERGY SAVER The fan...

Страница 15: ...all the component by referring to the removal procedure above 3 Control Box 1 Remove the front grille Refer to section 1 2 Remove the cabinet Refer to section 2 3 Remove the 2 screws that fasten the control box cover 4 Remove two housings that connect compressor wire and motor wire in the control box 5 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 6 Remove...

Страница 16: ...s that fasten the Heater Cover See Figure 18 at Electric Heater Model 11 Remove the Heater cover See Figure 18 at Electric Heater Model 12 Pull out the hook of orifice by pushing the tabs and remove it See Figure 19 13 Remove the clamp with a hand plier that secures the blower 14 Remove the blower 15 Remove the 4 screws that fasten the air guide from the barrier 16 Move the air guide backward pull...

Страница 17: ... removal procedure above 8 Compressor 1 Remove the cabinet Refer to section 2 2 Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery sys tem install one such as a Watco A 1 before venting the Freon Leave the valve in place after servicing the system 3 Remove the overload protector Refer to sec tion 7 4 After purging the unit completely unbraze ...

Страница 18: ... by referring to the above 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 special cord means the cord that has the same specification marked on the supply cord attached at the unit 11 Thermistor 1 Remove the control box Refer to section 3 2 Open the control box Refer to sect...

Страница 19: ...ATCO A 1 before venting the FreonTM Leave the valve in place after servicing the system 14 Condenser 1 Remove the cabinet Refer to section 2 2 Remove the 4 screws that fasten the brace Refer to section 4 3 Remove the 5 screws that fasten the condenser and shroud 4 After discharging the refrigerant completely unbraze the interconnecting tube at the con denser connections 5 Remove the condenser 6 Re...

Страница 20: ...cuum pump and place it on the charging cylinder See figure 31B 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 sys...

Страница 21: ...making a leak 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 31A Pulling Vacuum Figure 31B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Страница 22: ...23 Room Air Conditioner Schematic Diagram Schematic Diagram Wiring Diagram ELECTRIC HEATING MODEL ...

Страница 23: ...ooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LINE COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LIQUID PRESSURE DROP ROOM AIR HEAT LOAD VAPOR INLET HOT DISCHARGED AIR LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID REFRIGERANT LOW PRESSURE VAPOR ROOM AIR CONITIONER EVAPORATOR COILS CONDENSER COILS CYCLE OF...

Страница 24: ...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 44 50 F 7 10 C Check heat load increase Clean condenser Not on separate circuit Check inside gas pressure Adjusting of refrigerant charged Malfunction of compressor Replacement of compressor Check cold air circulation for smooth flo...

Страница 25: ...gular 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 Capacitor check Replacement Compressor only fails to start Defect of compressor capacitor ...

Страница 26: ...ttention to any change from high speed to low speed If the speed does not change replace the motor If cracked out of balance or partially missing replace it If cracked out of balance or partially missing replace it Tighten it 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 Check voltage If not within ...

Страница 27: ...er a large area on the coil surface head pressures will increase causing the compressor to overload Straighten the fins or replace the coil Test capacitor Check the terminals If loose repair or replace Check the system for a restriction If restricted clean of replace Close if open Determine if the unit is properly sized for the area to be cooled Check the set screw or clamp If loose or missing cor...

Страница 28: ...67480 267110 238310 237200 268711 2 W0CZZ 135500 268711 1 753010 352111 753000 T R E M I EN ER GY SA VER E D O M f f O n O n a F f f O n O l o o C t a e H 148000 149980 554030 346811 W48602 349600 359012 W48602 354210 349001 567502 554160 550140 130410 135312 147581 352113 35211A 152302 731273 130910 749740 552102 ...

Страница 29: ...34E R 346811 MOTOR ASSEMBLY AC 4681A20027A 4681A20009M R 349001 DAMPER VENTILATION 4901A30001A 4900AR7024B R 349600 MOUNT MOTOR 4960A20002A 4960AR6165A R 552113 TUBE ASSEMBLY CONNECTOR 5211A30260D 5211AR7059A R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5210A20119D 5211AR2930A R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A20130A 5211AR6081L R 352380 AIR GUIDE ASSEMBLY 5239A30002N 5239AR1523U R 354210 EVAP...

Страница 30: ...02 EBR30851601 R 267110 REMOTE CONTROLLER 6711A20034E 6711A20034E R 346811 MOTOR ASSEMBLY AC 4681A20027A 4681A20009M R 349001 DAMPER VENTILATION 4901A30001A 4900AR7024B R 349600 MOUNT MOTOR 4960A20002A 4960AR6165A R 352111 TUBE ASSEMBLY CONNECTOR 5211A20131H R 352113 TUBE ASSEMBLY DISCHARGESINGLE 5211A21201C 5211AR2930A R 35211A TUBE ASSEMBLY SUCTIONSINGLE 5211A20130F 5211AR6081L R 352390 AIR GUID...

Страница 31: ...P No 3828A20841A March 2007 Printed in China ...

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