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

LGE Internal Use Only

Schematic Diagram

• TOP VIEW

• BOTTOM VIEW

Outdoor Unit

Models: AS-W2465DH0, AS-W2465DH1

CN_ADDR3

R20K

R01B

C07K

C06K

15

C05M

R11M

R04P

R12P

R11P

C15Z

C16Z

R09P

C03P

R03P

R02P

R07P

R05P

C01P

R01P

C02P

R16Z

R17Z

D03Z

C12Z

R20Z

C13Z

C11Z

R19Z

R18Z

R10Z

R12Z

C06Z

13

14

C14Z

8

9

10

11

12

6

7

C03Z

C05Z

R07Z

R11Z

C17Z

1

2

3

4

5

R21P

7

6

V

U

V

U

28

13

12

9

8

Nv

27

Nw

Nu

25

24

26

1

3

5

SPM2

CN_LEV5

C07M

C07D

C03D

IC04D

IC01P

C05P

R13P

CN_LEV1

R10P

R08P

R06P

R14P

C04P

CN_LEV3

CN_LEV4

C08M

C09M

IC07M

CN_LEV2

C11M

D01D

C04D

C01D

SMPS

C02D

C06D

C10K

C09K

C08K

C10M

R16T

IC09M

IC08M

C04M

IC05M

R10M

IC04M

C03M

R09M

L01D

R15P

R17P

R16P

R13T

Q01T

R11T

R02T

CN_CENTRAL

CN_LEV6

C06M

R12T

D07K

D08K

CN_JIG_PC

R06T

R05T

L03D

C01A

CN_WRITER

R01T

R01A

C03A

C01L

R09Z

R10T

C14K

C12K

C11K

R17T

R09T

R06Z

C15K

C01T

C13K

R05Z

R20P

R19P

R02Z

R01Z

C08P

C07P

C01Z

R03Z

CN_FLASH

R04Z

CN_TH2

R24K

R25K

R21K

C03H

C02H

R34K

R36K

R37K

R35K

IC01A

R06F

R11H

R07F

R03H

R02H

R02A

R18P

C06P

R10H

CN-COIL2

C04S

D01Z

C08Z

C07Z

R13Z

R15Z

C10Z

17

16

R14Z

R08Z

C04Z

C02Z

18

19

22

23

C09Z

20

21

SPM2

W

P

W

D02Z

R05S

IC01S

D01S

IC02S

C09S

R03S

R07S

R06S

C07S

C09S

R02S

R01S

C05S

C19Z

BD02S

R05J

R04S

BD01S

IGBT

C10J

Q03F

ADDR_S/W

Q01F

R01F

L02D

C08D

C05D

R02D

C01S

C10D

R08M

R07M

R06M

C02M

R05M

R09K

R08K

R15T

R04M

R03M

R02M

C02F

R02F

Q02F

R03F

Q04F

ZD01F

IC06M

R05F

R04F

R01M

C01M

CN_MOTOR

C03S

R01Y

C02S

LED02G

IC02M

C01F

R02Y

C05T

R08T

R07T

C03T

R21T

C18Z

C02C

R07C

JIG

C12H

C10H

C07H

R14T

C01V

C02T

R08H

C08S

EEPROM

R07H

C11H

C09H

C08H

IC02A

1

OSC01B

R03A

R02L

R01L

C17K

C16K

C02A

CN_TH4

C06H

R18K

R07K

C05H

R38K

CN_TH1

C04H

C01H

R19K

R39K

R40K

R09H

CN_ADDR2

CN_TH3

R23K

R04H

R22K

CN_ADDR1

R03Y

D01Y

C01Y

R14H

R06H

R03N

C02N

R13H

R12H

R01H

C09D

C03F

R18T

R05H

R01C

BD01C

R04C

R03C

R02C

D01C

C01C

RY_C/COMP

R02G

R01G

R16H

Q01C

R15H

R04T

SW1

OR1

IC01M

LED01G

R02N

R01N

BD01N

D01N

C06T

R41K

D01V

R08V

R06C

R05C

IC01V

D02N

D02C

C03C

R07V

R11K

R06K

R20T

R22T

C01N

CN_JIG_S

R10K

CN_HEATER

RY_P/ICE

CN_HOT GAS

CN_4WAY

RY_FAN(B)_L

CN_FAN(B)

CN_FAN(A)

CN-COIL1

RY_FAN(A)_H

RY_FAN(A)_L

RY_HEATER

RY_HOT GAS

RY_FAN(B)_H

RY_4WAY

CN_P/ICE

TRANS1

RY_OIL/S

C09J

R01V

CT

R06V

R05V

R04V

R03V

R02V

CN_OIL/S

CN_PRESS

IC09K

R28K

D04K

D03K

D05K

D06K

CN_COM1

CN_COM

C01J

FUSE

R29K

IC10K

IC12K

R14K

R17K

R16K

R15K

R30K

R31K

R32K

R33K

C03J

C02J

CN_CP(N)

N

L

CN_CP(L)

CN_GND1

R01J

R03J

R02J

J60

ZD03K

R26K

R02K

IC04K

IC03K

ZD06K

R27K

ZD07K

ZD08K

IC07K

IC08K

IC05K

IC06K

J59

NF01J

J57

J56

J55

J54

J53

J58

R04K

J51

J33

J52

C01K

D01K

C02K

ZD05K

R12K

R01K

IC11K

R05K

ZD02K

ZD01K

D02K

R13K

ZD04K

IC01K

IC02K

ZNR02J

ZNR01J

R04J

C06J

C05J

NTC01K

R03K

C04J

J34

SURGE

CN_GND2

PTC

C07J

RY_PWR

J29

J27

NF02J

J30

J28

J32

J31

J22

J21

J23

J25

J24

C08J

J26

WCN_GND3

C08K

R35K

(DISP_C)

CN_TH4

IC04K

ASM:6871A20679

C16Z

R03P

R02P

R01P

D03Z

C12Z

10

13

R17Z

R16Z

1

5

V

U

7

28(NW)

29(U)

30(V)

9

8

(BL)

(RD)

27(NV)

R21P

24

25

26(NU)

5

6

13

12

1

3

R13Z

D01Z

22

R15Z

C10Z

18

20

15

W

R04P

31(W)

32(P)

(YL)

R14Z

D02Z

D07K

D08K

R13P

CN_LEV1

R11P

R12P

R14P

IC04D

C03D

CN_LEV4

CN_LEV2

Q01T

CN_CENTRAL

CN_LEV6

2004.10.24. lab2

CN_JIG_PC

CN_LEV5

C04D

D01D

C07D

C06D

SMPS

PWB:6870A90154A

CN_LEV3

C01D

C02D

L01D

ASM:6871A10117

CN_MOTOR

ADDR_S/W

L02D

C08D

C05D

R02D

C10D

C02F

R08M

R07M

R06M

R05M

R04M

R03M

R02M

R01M

ZD01F

R04F

(AIR/PIPE)

CN_TH2

IC10K

L03D

C01A

CN_FLASH

R17P

R16P

C02H

IC12K

R34K

R36K

R37K

CN_ADDR3

IC01A

R15P

CN_WRITER

EEPROM

JIG

C02C

R07C

OSC01B

C06H

IC03K

C01Y

C05H

R03Y

D01Y

SUC/DISP_A

(H/SINK)

CN_TH1

C01H

IC08K

CN_ADDR2

C04H

IC07K

(SUC/DISP_I)

CN_TH3

IC05K

IC06K

CN_ADDR1

C03H

IC09K

R06F

C06S

R02S

R01S

IC01S

IC02S

R05S

D01S

R03S

C08Z

C09S

C19Z

R05J

IGBT

R04S

+

C04S

~

~

-

+

C10J

BD01S

BD02S

CN_P/ICE

CN_4WAY

CN_HOT GAS

CN_HEATER

CN_FAN(A)

RY_P/ICE
RY_C/FAN

R01Y

C01S

4

C01F

R02Y

CN_HEATER2

RY_FAN(B)_L

CN-COIL1

RY_FAN(A)_L

RY_FAN(A)_H

CN-COIL2

CN_C/COMP2

RY_HEATER

RY_4WAY

C02S

RY_C/COMP2

RY_HOT GAS

C03S

RY_HEATER2

RY_FAN(B)_H

BD01C

R01C

R04C

R03C

R02C

D01C

C01C

3

SW1

Q01C

NOMAL

LONG

PIPE LENGTH

LED02G

LED01G

DISP_B

R02N

R01N

BD01N

R08V

R06C

IC01V

D02N

D02C

D01N

C03C

CN_CT/SUB

CN_TH5/D3

IC11K

R05C

+

-

CN_JIG_S

C01N

IC01K

IC02K

TRANS1

CN_C/FAN

3

RY_C/COMP

RY_OIL/S

4

C09J

CT

R06V

R05V

R04V

R03V

R02V

D01V

R01V

1

7

CN_FAN(B)

CN_OIL/S

CN_PRESS

D04K

D03K

D05K

D06K

CN_CP(N)

CN_CP(L)

C01J

FUSE

WCN_GND3

C08K

CN_COM

CN_COM1

20A

15A

(BL)

WCN_P(N)

L

(BR)

WCN_P(L)

J59

C03J

R14K

R17K

R16K

R15K

R29K

R31K

R30K

R32K

R33K

C02J

NF01J

ZD03K

R02K

R26K

ZD06K

R27K

ZD07K

ZD08K

R28K

R04K

J57

J56

J55

J54

J53

J52

J51

J33

J58

N

(BK)

CN_GND1

R01J

J60

J34

C07J

J27

ZD01K

C02K

ZD05K

D01K

ZD04K

R13K

R12K

R01K

ZNR02J

ZNR01J

R04J

NTC01K

R03K

RY_PWR

4

3

R05K

ZD02K

C01K

D02K

J25

J24

J23

J22

J21

J31

C06J

C05J

J29

J28

J32

J30

(BK)

CN_GND2

SURGE

C04J

R02J

R03J

J26

PTC

C08J

NF02J

+

-

-

+

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Содержание AS-W2465DH0

Страница 1: ...er SVC MANUAL Exploded View MODEL AS W2465DH0 AS W2465DH1 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: ...del Name 3 Safety Precautions 5 Dimensions 10 Installation 12 Flaring work and connection of piping 14 Connecting the cable between indoor unit and outdoor unit 19 Checking the drainage and forming the pipings 21 Air Purging 22 Test Running 24 Functions 25 Operation 28 Disassembly 38 Troubleshooting Guide 41 Schematic Diagram 63 Product Specifications 67 Exploded View 68 ...

Страница 3: ...200 220V 50Hz D 440 460 60Hz 3Phase 6 220 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 0 9 LG Model De ARTCOOL COLOR velopment Serial No Basic A Basic 4Way B Plasma Filter C Plasma Filter 4 Way D Tele LCD E Tele LCD Neo plasma 4Way F Neo Pla...

Страница 4: ...z F 200V CHASSIS Look D K L G M N D P Division Panel Type Deluxe Fighting Look LG1 LG2 SEMI PANEL OEM1 OEM2 Panel Type Deluxe LG3 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 0 9 LG Model De ARTCOOL COLOR velopment Serial No R Mirror W White B Blue D Wood M Metal C Cherry S4 S5 S6 SQ ...

Страница 5: ...mbols used in this manual are as shown below This symbol indicates the possibility of death or serious injury This symbol indicates the possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Do not use damaged power cords plugs or a loose socket Always use the power plug and socket with the ground terminal There is risk of fire of electric shock Ther...

Страница 6: ...t failure and personal injury Sharp edges could cause injury Be especially care ful of the case edges and the fins on the condenser and evaporator There is risk of fire electric shock explosion or injury Be cautious when unpacking and installing the product For installation always contact the dealer or an Authorized service center For re installation of the installed product always contact a deale...

Страница 7: ...k There is risk of fire or electrical shock Grasp the plug to remove the cord from the outlet Do not touch it with wet hands Do not place a heater or other appliances near the power cable There is risk of fire or electrical shock There is risk of fire and electric shock Do not allow water to run into electrical parts Do not store or use flammable gas or com bustibles near the air conditioner There...

Страница 8: ...vels may cause failure of product A bad connection may cause water leakage Keep level even when installing the product Use two or more people to lift and transport the air conditioner To avoid vibration or water leakage Avoid personal injury Installation 90 Unplug the unit if strange sounds odors or smoke comes from it Be cautious that water could not enter the product There is risk of electric sh...

Страница 9: ...They are very sharp There is risk of fire electric shock or damage to the plastic parts of the product There is risk of personal injury Do not step on or put anyting on the product outdoor units Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There is risk of personal injury and failure of product There are sharp and moving parts that co...

Страница 10: ...Dimensions Dimensions Installation plate D H W W mm 1090 H mm 300 D mm 178 Model Dimension 24k Btu Series Indoor Unit 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 ...

Страница 11: ...side MODEL DIM W mm 870 H mm 800 D mm 320 L1 mm 370 L2 mm 340 L3 mm 25 L4 mm 775 L5 mm 25 L6 mm 546 L7 mm 162 L8 mm 162 L9 mm 54 L10 mm 79 L11 mm 76 4 24k Btu Series 11 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 12: ...ir conditioner weight into account and select a place where noise and vibration are minimum Select a place so that the warm air and noise from the air conditioner do not disturb neighbors Rooftop Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding...

Страница 13: ... Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Open the Front Grille Pass Telephone Control Cord Wire through the hole which the power cord goes through Connect Telephone Control Cord Wire to the phone jack of telephone PCB of Control Box Fix Telephone Control Cord Wire inside Control box so as not to disconnect Close the Front Grille How ...

Страница 14: ... plastic tubing holder in the original position Optional Carry out flaring work using flaring tool as shown below Burr removal Completely remove all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe in a downward direc tion as you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then p...

Страница 15: ...ed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Indoor unit installation Hook the indoor unit onto the upper portion of the installa tion plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure t...

Страница 16: ...tubing and the drain hose to the required piping hole position Insert the piping drain hose and the connect ing cable into the piping hole Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy connection later Indoor unit installation Hang the indoor unit from the hooks at the top of the instal lation plate Insert the ...

Страница 17: ...s engage into their slots clicking sound Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Reroute the pipings and the drain hose across the back of the chassis Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and pu...

Страница 18: ...the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Bad case Following bending type from right to left could cause problem of pipe damage Connection of the pipes Outdoor mm inch kg m Ø9 52 3 8 4 2 Ø15 88 5 8 6 6 Outside diameter Torque Outdoor unit Gas side piping Bigger diamet...

Страница 19: ...s When installing refer to the circuit diagram behind the panel front of the indoor unit Connect the wires firmly so that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram If a power plug is not used provide a circuit breaker between power source and the unit as shown by The power cord connected to the A unit should be selected according t...

Страница 20: ... wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at...

Страница 21: ...nd connecting cable from down to up Secure the tapped piping along the exterior wall using sad dle or equivalent To check the drainage Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the piping and con...

Страница 22: ...ation Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been complet ed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage Leak test Connect the manifo...

Страница 23: ...net on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 1 Remove the caps from the 2 way and 3 way valves 2 Remove the...

Страница 24: ...peration LED would repeat 4 times Evaluation of the performance Operate unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake temperature and the discharge is more than 8 C 46 F Cooling or Heating 4 For reference the gas side pressur...

Страница 25: ...operation Lights up in Sleep Mode Optional Lights up in Timer Mode Lights up in Preheat Mode for Heating Model Lights up in Plasma Air Clean Mode Lights up in during Energy Saving Cooling Mode Operation Optional Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting the Current Control Time Delay Safety Control Indoor Fan Speed Control Oper...

Страница 26: ...ing low Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed The louver can be set at the desired position or swing up and down automatically Sleep Mode Auto Control Natural Air Control by CHAOS Logic Airflow Direction Control The function will be operated while in ...

Страница 27: ...f indoor and outdoor It is only operated in the heating operation mode except defrosting operation High speed Although fan motor speed is middle it will change high speed in case of below AC193V over 45 C of outdoor temp and over fc fh of comp Freq Low speed Although fan motor speed is middle it will change Low speed in case of over AC 270V over 21 C Heating Mode of outdoor temp below 24 C Cooling...

Страница 28: ... ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Defrost Indicator OFF except when hot start during heating mode operation or while in defrost control If the indoor pipe temperaure is below 0 C in 7 min after the compres...

Страница 29: ...ndoor fan operates with the low airflow speed Cooling Mode Operation Healthy Dehumidification Mode Operation When the intake air temp reaches 4 C above the setting temp the compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp Setting Temp 2 C Compressor OFF Temp Setting Temp 4 C While compressor on the indoor fan is off when the indoor pipe temp is be...

Страница 30: ... the airflow speed of the indoor fan is automatically selected according to the temperature When the set time is reached after the time is input by the remote control the appliance stops operating The timer LED is on when the off timer is input It is off when the time set by the timer is reached If the appliance is on pause at the time set by the timer the pause continues When the set time is reac...

Страница 31: ...mode By the Chaos swing key input the upper lower vane automatically operates with the Chaos swing or it is fixed to the desired direction Mode2 Mode3 Mode4 Mode5 Mode6 Mode7 Mode8 Mode9 OPEN CLOSED 8 Cooling Operation 120 Mode2 Mode3 Mode4 Mode5 Mode6 Mode7 Mode8 Mode9 OPEN CLOSED 8 Heating Operation 120 Mode1 S5 24k Model Start Start Swing mode ...

Страница 32: ...60 min later since the start of the sleep timer the setting temperature decrease by 1 C After another 60min elapse it decreases by 1 C again Setting temp C 1 0 C up 1 0 C up Cooling ON temp Setting temp 0 5 C Cooling OFF temp Setting temp 0 5 C 0 5 1 Sleep time hr Setting temp C Heating ON temp Setting temp 2 C Heating OFF temp Setting temp 4 C 1 2 Sleep time hr 1 0 C down 1 0 C down When the slee...

Страница 33: ...ture as follows The unit select before operating mode in 3 hours Indoor temp over 24 C 21 24 C below 21 C Setting temp 22 C 23 C 24 C Setting speed of indoor fan High speed Operating Mode Cooling Healthy Dehumidification Heating Power relay turns on 1 second later after the power is input to the outdoor unit Control sequence power on PTC operating power relay on DC Peak Current Error by a fault si...

Страница 34: ...r reaches over 130 C or below 30 C the compressor stop instantly It will be limited the compressor operating frequency according to the compressor dome TH Refer to below Fig Temperature range by COMP SPEC varies by 10 C Portection from overheating of power module Portection from overheating of compressor T off C T2 C Heat Sink Temp T1 C T on C COMP Freq Free OFF Free Fc 1 Fc 1 Fc 2 Fc 2 T T off T ...

Страница 35: ...pe of the outdoor unit Defrosting control is available 50 minutes later since heating cycle started and the pipe temperature of out door unit reaches below 6 C Setting Freq Operating Freq of Comp 4 Way EEV Open step Outdoor FAN Indoor FAN Pre Heat LED Deice STEP Fh min Minimum Time of Heating Main Deice time Fh min Fh min ON OFF Setting Speed ON Hot Start OFF Hot Starting ON OFF OFF 0 1 2 3 4 5 6 ...

Страница 36: ...Fan 60 Sec 120 Sec Fan The air conditioner changes the operation mode automatically to keep indoor tempera ture When room temperature vary over 2 C with respect to setting temperature air condition er keeps the room temperature in 2 C with respect to setting temperature by auto change mode If outdoor temperature drops below certain temperature liquid back is prevented by reducing fan speed It can ...

Страница 37: ... SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation 11 ENERGY SAVING COOLING MODE BUTTON OPTIONAL Used to set Energy Save in cooling mode 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 NEO PLASMA OPTIONAL Used to start or stop the plasma purification f...

Страница 38: ...e sure the power switch is set to OFF To remove the Grille from the Chassis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the othe...

Страница 39: ...move securing screws Pull the control box out from the chassis carefully 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA Screw When repair do not damage the Caution label ...

Страница 40: ...b is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self ...

Страница 41: ... LGE Internal Use Only Troubleshooting Guide Troubleshooting Guide INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER EEV COMPRESSOR ACCUMU LATOR GAS SIDE 3 WAY VALVE LIQUID SIDE 3 WAY VALVE COOLING HEATING REVERSING VALVE Refrigeration Cycle Diagram Cooling Heating Models ...

Страница 42: ...with cap Closed Open Open clockwise counter clockwise connected manifold gauge Open Open Open with charging cylinder Open Open Open with charging cylinder Open Open Open Open Works Shipping Air purging Installation Operation Pumping down Transfering Evacuation Servicing Gas charging Servicing Pressure check Servicing Gas releasing Servicing 1 2 3 4 5 6 Valve cap Open position Closed position Pin S...

Страница 43: ...move the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 6 Set the 3 way valve to the back seat 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time espec...

Страница 44: ...e push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi ...

Страница 45: ...3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm2 g 6 Disconnect the charge set and the gas cylin der and set the Liquid side and Gas side valves to th...

Страница 46: ...e service port 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indi cates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G discharge the refrig erant until the gauge indicates 0 5 to 1 kg cm2 G if this is the case it will not be neces sary to apply a evacuatin Discharge the...

Страница 47: ...hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo O...

Страница 48: ... of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be dis charged If the system ...

Страница 49: ...tion error between in and out 5times OFF 06 Indoor Out Piping sensor error 6times OFF Outdoor Error Error Code Description INV TPS LED 1 Red LED 2 Green Indoor Status 21 DC Peak IPM Fault 2times 1time OFF 22 CT 2 Max CT 2times 2times OFF 23 DC Link Low Volt 2times 3times OFF 24 L_P Heater Sink 2times 4times OFF 25 Low voltage Over voltage 2times 5times OFF 26 DC Comp Position Error 2times 6times O...

Страница 50: ...perature and pressure of refrigeration cycle 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty NOTICE NOTICE Temp difference approx 0 C Current less than 80 of rated current Temp difference approx 8 C Current less than 80 of rated current Temp difference less than 8...

Страница 51: ...SP1 CN DISP2 of indoor PCB Check the voltage of power AC220V AC240V 50Hz The voltage of main power The voltage applied to the unit The connecting method of Indoor Outdoor connecting cable each color The P C B Ass y Fuse Noise Filter Power Module Bridge Diode etc Trouble 1 NO YES The operation check of the Indoor P C B Ass y Procedure 1 The input voltage of power mod ule 2 The output voltage of pow...

Страница 52: ...d At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed as force Caused by the remote controller Caused by other parts except the remote controller When the mark is displayed in LCD screen replace battery Check the contact of CN DISP 1 2 connector Check DISP P C B Ass y Voltage between CN DISP1 DC 5V Check ...

Страница 53: ...IPM Fault Compressor Over current CT 2 Max Current DC Link Low Volt Low High press AC Low AC High Volt DC Compressor Position PSC Fault DC Link High Volt Discharge Pipe Temp High INV Discharge Pipe Temp High Cons 21 22 23 24 25 26 27 28 32 33 Off Off Off Off Off Off Off Off Off Off Outdoor Status 2 times 2 times 2 times 2 times 2 times 2 times 2 times 2 times 3 times 3 times 1 time 2 times 3 times...

Страница 54: ...t sink temp high Open Short CT Circuit D pipe sensor INV open short Air sensor open short Cond Pipe sensor open short Suction pipe sensor open short D pipe sensor Cons open short Over capacity Communication Indoor Outdoor EEPROM check sum Cond Pipe sensor temp high Heat sink sensor temp high Heat sink sensor open short 40 41 44 45 46 47 51 53 60 61 62 65 Off Off Off Off Off Off Off Off Off Off Off...

Страница 55: ...gged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Display code Title Cause of error Check point Normal condition Check Point 1 Unplug the sensor on Indoor unit PCB 2 Estimate the resistance of each sensor 3 If the resistance of the sensor is 10KΩ 5KΩ at 25 C then sensor is normal 4 If the res...

Страница 56: ...t Poor insulation of IPM An instant over current in the U V W phase Comp lock The abnormal connection of U V W Over load condition Overcharging of refrigerant Pipe length Poor insulation of compressor Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection U V W 2 Check the load condition Refrigerant Pipe length Adjust the load condition 3 Check the e...

Страница 57: ...N Is 4 0Vdc 25A Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the fan operation is right 3 Check the current 4 Check the install condition 5 Check the internal circuit C T Diode Resistor 57 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 58: ...shooting CH23 CH28 V 23 28 DC Link Low voltage DC Link High voltage DC link volt is 140Vdc DC link volt is 420Vdc Check the power source Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the components B Diode Reactor PSC Parts ...

Страница 59: ...Input voltage 140Vac 300Vac Check the connection of CN_Press Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point CH 24 1 Check the connection of CN_PRESS 2 Check the install condition for over load 3 Check the SVC V V open 4 Check the leakage of refrigerant CH 25 1 Check the power source 2 Check the components ...

Страница 60: ...t IGBT Check the connection of comp wire U V W Malfunction of compressor Check the component of IPM detection parts Check the component of IGBT Check the components Display code Title Cause of error Check point Normal condition Check Point CH 26 1 Check the connection of U V W 2 Check the insulation of IPM part 3 Check the compressor same with CH21 CH 27 1 Check the component of IGBT 2 Check the c...

Страница 61: ...OM Check sum Over capacity Combination Check sum error Check the indoor unit capacity Check the combination table Check the PCB ASM P No Check the poor soldering Display code Title Cause of error Check point Normal condition Check Point CH 51 1 Check the indoor unit capacity CH 60 1 Check the insertion condition of EEPROM 2 Check the poor soldering Troubleshooting Guide ...

Страница 62: ...sor detected high temp 85 C Check the load condition Check the sensor of Condenser pipe sensor Check the fan is locked Check the sensor of heat sink Display code Title Cause of error Check point Normal condition Check Point CH 61 1 Check the install condition for over load Refrigerant Pipe length Blocked CH 62 1 Check the fan is locked 2 Check the Outdoor temp is very high COMP Frequency Hz Toff C...

Страница 63: ...ronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Outdoor Unit Models AS W2465DH0 AS W2465DH1 Wiring Diagram Schematic Diagram Indoor Unit Models AS W2465DH0 AS W2465DH1 Schematic Diagram ...

Страница 64: ...ight 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Components Location TOP VIEW BOTTOM VIEW Indoor Unit Models AS W2465DH0 AS W2465DH1 ...

Страница 65: ...N D 0 2 C C 0 3 C R 0 7 V R 1 1 K R 0 6 K R 2 0 T R 2 2 T C 0 1 N C N _ J I G _ S R 1 0 K C N _ H E A T E R R Y _ P I C E C N _ H O T G A S C N _ 4 W A Y R Y _ F A N B _ L C N _ F A N B C N _ F A N A CN COIL1 R Y _ F A N A _ H R Y _ F A N A _ L R Y _ H E A T E R R Y _ H O T G A S R Y _ F A N B _ H R Y _ 4 W A Y C N _ P I C E T R A N S 1 R Y _ O I L S C 0 9 J R 0 1 V C T R 0 6 V R 0 5 V R 0 4 V R 0...

Страница 66: ... 66 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram DISPLAY ASSEMBLY 6871A20624A ...

Страница 67: ...l Indoor High dB A 3 Sound Med dB A 3 Pressure 1m Low dB A 3 Outdoor Max dB A 3 Refrigerant R410A Charge Power Cord AWG P mm2 Connecting Cable AWG P mm2 Connecting Tube Liquid Side mm in Ø Socket Flare Gas Side mm in Length std m in Drain Hose O D I D mm in Indoor mm Dimension inch W H D Outdoor mm inch Net Weight Indoor kg lbs Outdoor kg lbs 3 867 3 867 3 326 3 326 13 200 13 200 7 030 7 030 6 048...

Страница 68: ...rposes LGE Internal Use Only Exploded View 152302 342800 264110 263230A 263230B W6640 359011 131410 159830 733010 135316 135314 135311 147581 268711A 146811 346810 266090 135516 35211B 352115 352150 354210 149304 249951 268711D 267110 Indoor Unit Models AS W2465DH0 AS W2465DH1 Exploded View ...

Страница 69: ...es LGE Internal Use Only Exploded View 435300 137213B 137213A 435512 554031 552202 552116 552113 435511 554160 561410 550140 552203B 552203A 430411 649950 261704 437210 W0CZZ 268711F 263230D 559010 437211 435301 546810 549610 447910 349480 Outdoor Unit Models AS W2465DH0 AS W2465DH1 UE1 Chassis ...

Страница 70: ...P No 3828A20462R July 2008 ...

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