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Ducted SplitAir ConditionerSERVICE MANUALMODELS: LN-0880CC
LN-1080CCLN-1380CCLN-1580CCLN-2080CC
L N - 1 0 8 0 C CC: ConvertibleH: Horizontal FlowD: Down Flow
C: Cooling OnlyH: Heat Pump
1 : 115/60/15 : 200-220/50/18 : 380-415/50/3B : 220/60/3
2 : 220/60/16 : 220-240/50/19 : 380-415/60/3C : 440-460/50/3
3 : 208-230/60/17 : 100/50(60)/1A : 220/50/3D : 440-460/60/3
03 : 3 ton 08 : 7.5 ton 15 : 15 ton04 : 4 ton 09 : 8.5 ton 18 : 17.5 ton05 : 5 ton 10 : 10 ton 20 : 20 ton06 : 6.25 ton 13 : 12.5 ton 25 : 25 ton
Development Sequence
Nominal cooling capacity
LGDucted Split Air Conditioner
— 2 —
Contents
Model Number Nomenclature
Model Number Nomenclature...............................................................................................2
General Data ..........................................................................................................................3
Dimensions ............................................................................................................................5
Wiring Diagram......................................................................................................................6
Troubleshooting Guide .........................................................................................................8
Features of Controller .........................................................................................................20
Exploded View and Replacement Parts List .....................................................................25
— 3 —
General Data
Table-1
1) Test Condition of ARI Rated Cooling Capacity :Ambient:95°F , Air entering temprature : 80°F DB and 67°F WB
2) ARI standard210/240 or 360 for EER270 for Sound
Models
(Btu/h)
Cooling (W)
(kcal/h)
Electric Heater (Watt)
Electrical Data Voltage (PH,Hz,V)
Running CurrentCooling
(Amps)
M.C.A (Amps)
Power Input Cooling (Watt)
Performance EER Cooling (Btu/hr.W)
Air Circulation (Indoor/Outdoor) (m3/min)
Moisture Removal ( /hr)
Noise Cooling dB(A)
Outdoor (dB(A),1m)
Wired Remote Controller
Time Delay Safety Function
Vertical Air-flow Direction control
Horizontal Air-flow Directioon control
Cooling Operation Mode
Heating Operation Mode
Features Air Circulation Mode
Soft Dry Operation
Fan Speeds (steps)
Auto-Operation
Sleep Mode
Timer Setting (24-Hour on/off)
Forced Operation
Self-Diagnosis Function
Tube Size (mm)
Outdoor CoilRow/FPI
Length (mm)
Face Area (m2)
Tube Size (mm)
Indoor CoilRow/FPI
Length (mm)
Face Area (m2)
Type
Outdoor FanNo. used/Diameter
Drive Type
RPM
DimensionsIndoor unit (WxHxD) (mm)
Outdoor unit (WxHxD) (mm)
Net WeightIndoor unit kg(Ibs)
Outdoor unit kg(Ibs)
Service ValveLiquid (mm)
Gas (mm)
Stuffing Without S/Parts (20FT/40FT)
LN-0880CC LN-1080CC
78,000 108,000
22,854 31,644
19,656 27,216
Option(9/18kW) Option(9/18kW)
3/380-415/50 3/380-415/50
16.5 20
21 30
8,200 11,200
9.5 9.6
75 / 121 100 / 130
7.5 11
- -
88 90
O O
O O
O O
O O
O O
O(With E/Heater) O(With E/Heater)
O O
O O
Variable Speed Variable Speed
Auto-Restart Auto-Restart
O O
O O
O O
O O
9.52 9.52
2/17FPI 2/17FPI
1809.4 2076
1.65 1.9
9.52 9.52
2/17FPI 2/17FPI
1100 1100
0.84 0.84
Propeller Propeller
2/526 2/526
Direct Direct
900 900
1260*1120*635 1260*1120*635
1245*930*650 1245*930*650
140(307) 150(331)
160(353) 169(373)
15.88 12.7*2
25.4 19.05*2
12/24 12/24
Capacity
— 4 —
General Data
Table-2
1) Test Condition of ARI Rated Cooling Capacity :Ambient:95°F , Air entering temprature : 80°F DB and 67°F WB
2) ARI standard210/240 or 360 for EER270 for Sound
Models
(Btu/h)
Cooling (W)
(kcal/h)
Electric Heater (Watt)
Electrical Data Voltage (PH,Hz,V)
Running CurrentCooling
(Amps)
M.C.A (Amps)
Power Input Cooling (Watt)
Performance EER Cooling (Btu/hr.W)
Air Circulation (Indoor/Outdoor) (m3/min)
Moisture Removal ( /hr)
Noise Cooling dB(A)
Outdoor (dB(A),1m)
Wired Remote Controller
Time Delay Safety Function
Vertical Air-flow Direction control
Horizontal Air-flow Directioon control
Cooling Operation Mode
Heating Operation Mode
Features Air Circulation Mode
Soft Dry Operation
Fan Speeds (steps)
Auto-Operation
Sleep Mode
Timer Setting (24-Hour on/off)
Forced Operation
Self-Diagnosis Function
Tube Size (mm)
Outdoor CoilRow/FPI
Length (mm)
Face Area (m2)
Tube Size (mm)
Indoor CoilRow/FPI
Length (mm)
Face Area (m2)
Type
Outdoor FanNo. used/Diameter
Drive Type
RPM
DimensionsIndoor unit (WxHxD) (mm)
Outdoor unit (WxHxD) (mm)
Net WeightIndoor unit kg(Ibs)
Outdoor unit kg(Ibs)
Service ValveLiquid (mm)
Gas (mm)
Stuffing Without S/Parts (20FT/40FT)
LN-1380CC LN-1580CC LN-2080CC
132,000 159,000 215,000
38,676 46,587 62,995
33,264 40,068 54,180
Option(18/36kW) Option(18/36kW) Option(18/36kW)
3/380-415/50 3/380-415/50 3/380-415/50
24 33 42
34 42 54
13,300 16,200 22,000
9.9 9.8 9.8
124 / 140*2 150 / 121*2 199 / 130*2
13.5 16.5 20
- - -
92 92 92
O O O
O O O
O O O
O O O
O O O
O(With E/Heater) O(With E/Heater) O(With E/Heater)
O O O
O O O
Variable Speed Variable Speed Variable Speed
Auto-Restart Auto-Restart Auto-Restart
O O O
O O O
O O O
O O O
9.52 9.52 9.52 9.52 9.52 9.52
2/17FPI 2/17FPI 2/17FPI 2/17FPI 2/17FPI 2/17FPI
1809.4 1809.4 1809.4 1809.4 1809.4 1809.4
1.65 1.65 1.65 1.65 1.65 1.65
9.52 9.52 9.52
3/17FPI 3/17FPI 3/17FPI
1100 1400 1300
0.84 1.07 1.42
Propeller Propeller Propeller
2/526 2/526 2/526 2/526 2/526 2/526
Direct Direct Direct Direct Direct Direct
900 900 900 900 900 900
1260*1120*635 1560*1120*635 1460*1653*818
1245*930*650 1245*930*650 1245*930*650 1245*930*650 1245*930*650 1245*930*650
160(373) 170(375) 210(463)
2*160(2*353) 2*160(2*353) 2*169(2*373)
12.7 12.7 15.88 15.88 15.88 15.88
25.4 25.4 25.4 25.4 25.4 25.4
9/20 7/16 4/9
Capacity
— 5 —
Dimensions
LN-0880CC/LN-1080CC/LN-1380CC/LN-1580CC/LN-2080CC
1. Indoor unitUnit Dimensions
2. Outdoor unitLN-0880CC, LN-1080CCLN-1380CC, LN-1580CCLN-2080CC
• Each model of these three models(LN-1380CC/LN-1580CC/LN-2080CC) is operated with the dou-bled of the right outdoor unit.
A
D
E
C
HI
J
K
M
BL
F
G
930
130
70.5
750
650
750
1245
435
350
A 49.6(1,260) 49.6(1,260) 61.4(1,500) 57.5(1,460)B 25(635) 25(635) 25(635) 25.6(650)C 44.1(1,120) 44.1(1,120) 44.1(1,120) 65.1(1,653)D 14.2(362) 9.8(248) 10.6(269) 12.7(332)E 14(356) 18.5(470) 18.5(470) 24.3(617)F 13.4(340) 13.4(340) 15.7(398) 19.2(487)G 10.8(274) 10.8(274) 8.4(214) 11.8(299)H 23.3(593) 23.3(593) 23.3(593) 29.2(740)I 2(51) 2(51) 2(51) 2(51)J 7.1(180) 7.1(180) 7.1(180) 7.1(180)K 7.9(200) 7.9(200) 7.9(200) 7.9(200)L 2(51) 2(51) 2(51) 2(51)M 22.1(562) 22.1(562) 22.1(562) 22.1(562)
Unit: inch(mm)
Unit: inch(mm)
MODELLN-0880CC LN-1380CC LN-1580CC LN-2080CCLN-1080CC
— 6 —
Wiring Diagram
LN-0880CC
LN-1080CC
— 7 —
Wiring Diagram
LN-1380CC/LN-1580CC/LN-2080CC
Troubleshooting Guide
— 8 —
Ineffective Cooling or Heating
Check of outdoor coil(heat exchanger) & the fanoperation.
Check gas leakage.
Repair gas leak.
Replacement of unit if theunit is beyond repair.
Satisfactory operation withtemperature difference ofinlet & outlet air ;COOLING : 7~10°CHEATING : 15~17°C
Check heat load increase incooling operation.
Unexpected residue
Added electrical utencil
Check of inside gaspressure.
Adjust refrigerantcharge.
Malfunction of compressor.
Replacement ofcompressor
Check of cold (warm) air cir-culation for smooth flow.
Dirty indoor coil(heat exchanger.)
Malfunction of fan.
Clogging of air filter.
Obstruction at air outlet.
Countermeasure againstabove trouble.
Check clogging in refrigera-tion circuit.
Repair clogging in refrigera-tion circuit.
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 AirConditioning caused by a defect in the refrigeration circuit and improper application.
Unit runs but ineffective cooling
— 9 —
Troubleshooting Guide
Fails to Start
Check of circuit breakerand fuse.
Check control switch.
Fan only fails to start.
Improper wiring.
Defect of fan motorcapacitor.Defect of compressor
capacitor.
Irregular motor resistance( Ω )Irregular motor insulation( Ω )
Replacement of fan motor.
Improper electric heater
Replacement of electric heater.
Regular but fails to start.
Replacement of compressor.
Electric heater is not energized
Loose terminal connection.
Improper wiring
Irregular motor resistance ( Ω )
Irregular motor insulation ( Ω )
Replacement of compressor
Drop of power voltage.
Capacitor check.
Replacement of capacitor.
Compressor only fails to start.
Check power source.
Check control switchsetting.
— 10 —
Troubleshooting Guide
VOLTAGE LIMITS
1. No cooling and heating operation performed1) Both the blower and the compressor do not work
NAME PLATE RATING MINIMUM MAXIMUM
380 - 415 V 342 V 456 V
2) Only Indoor blowers do not work
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Other parts except theunit
Magnetic switch for com-pressor & fan motor
Operating switch
• Electric supply interrupted• Defective power wiring• Cut off power fuse
Too low voltage
Control point is on condi-tion of "OFF" due to trou-ble.
Troubled or defectivecontactor
Measure power sypplywith a tester in case thatthe same power source issupplied to other equip-ment except the unit,what and where troubledcan be discovered bychecking the operation ofother equipment.
Measure it with a tester.
Make short-circuit, thenmeasure it with tester.
Check it with the eyes ortester.
• Repair a switch box andrelative instrument.
• Replacement of fuse
• Request a powersupplier to repair.
Check the power source.Use a thick cable if nec-essary.
Replace it if necessary.
Repair or replace it.
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Motor
Capacitor
Electric wiring
• Over heated• Wiring short
Defected
• Cut- OFF of wiring• Short circuited on
operation
Check it with tester
Check it with a tester.
Check it with a tester.
Repair or replace it.
Replace it.
Rewiring or Repair.
— 11 —
Troubleshooting Guide
3) Only outdoor fan does not work
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Motor
Electric Wiring
• Over-heated• Wire short
Cut off of wiring
Short circuited onoperation
Check how it is insulated.
Check it with a tester.
Repair or replace it.
Rewiring or repair.
4) Only compressor does not work
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Magnetic switch forcompressor motor
Compressor motor
High pressure switch(Option part)
Electric circuit
Defective contact,magnetic coil troubled.
Troubled over-heated(layer short)
Troubled or defectivecontact or operating
Defective connection ordisconnection of the circuitfor compressor.
Check it with the eyes onwith a tester.
Check how it is insulated.
Check it with a tester.
Check it with a tester.
Repair or replace it.
Replace or repair thecompressor.
Replace it if neces-sary.
Rewiring or push resetbutton.
— 12 —
Troubleshooting Guide
Note: Use an appropriate measuring instrument for readjustment.
*1: High-pressure switch moves.
*2: Low- pressure switch moves.
2. The Units discontinue after the operation started
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Outdoor coil
In-condensable gasblended.
High pressure switch(Option part)
Refrigerant
Outdoor Fan
Coil is dirty *1
Air intruded into therefrigerant pipe line *1
Improper adjustment
A shortage of refrigerantamount. * 2
Check pressure
Reverse rotation of fanObstacle
Air short circuit *1
Checking
In the event thatdifference between thesaturating temperaturecorresponding to highpressure and thetemperature of airdischarged from theoutdoor coil is more than15°C, incondensable gasmay be blended.
Check it with a pressuregauge.
Confirm the wind blowingout upward.
Check it with eyes.
Wash it by means ofsomething like chemicalwashing.
Extract air by vacuumpump, then replenish(charge) the refrigerant.
Read just it to normaloperating pressure.(Note)Don't alternate thespecified adjustingpressure. If the adjustedpressure exceed thespecified range, it willcause a great accident.
Replenish therefrigerant. Repair thespot where it is leaked.
If reversed, connectinterchanged wires toeach terminal.Power wirings.
— 13 —
Troubleshooting Guide
3. The unit is working, but not cooling and heating sufficiently(Both blower and compressor are working)
WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Load
Air flow
Short air volume
Refrigerant
Air passage
Air filter
Much Cooling or Heatingload
Obstacle disturbs Intakeof uniform airflow.
Reverse rotation ofblower.
Shortage in the chargedrefrigerant.
Improper or foreign bodies
Clogged with dust
Heat load increased.Window or door has manycracks or gaps.
Checking
Checking
Coil inlet pipe is frosted
Checking
Checking
Do necessary disposalrespectively.
Correct it.
Correct it.
Recharge it.(Repair the leakage spot).
Correct or clear theforeign bodies.
Cleaning
4. All the functions are performed as specified, but very noisy and vibrantWHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY
Compressor
Blower
Screws
Electric troubles(Magnetic contactor)
Others
• Checking
Checking
Checking
Checking
Improper installation Checking
• Replace thecompressor
Repair or replace it.Clear the foreign bodies.
Correct
Repair and clean orreplace it.
Correct it.
Liquid refrigerant floodingback from the evaporator.
Faulty Discharge valveand suction valve.
Fan broken.
Foreign matters intruded.
Looseness or fail-off ofscrews
Defective contact.Defective contact point.Rusting and foreign mat-ters in the iron core con-tact face. Defective con-tact of theoperating switch.
• Check for refrigerant over-charge.• Check to see if the intake air temperature is
extremely cold.• Check for insufficient air flow quantity.
— 14 —
Electronic parts Troubleshooting Guide
YES
YES
YES
NO
YES
Is the input voltage oftransformer AC220V?
Is the output voltageof IC02D(7805) on the
main PCB DC5V?
1. Check the Fuse.2. Check the wiring of AC220V.
Is the output voltageof IC01D(7812 ) on the
main PCB DC12V?
OSC vibration?
1. Exchange main PCB ASS'Y
1. Exchange remote-controller2. Check or exchange the Main PCB ASS'Y.
YES
NO 1. Exchange the transformer.2. Check the connector of transformer.
NO
NO
1. Exchange IC02D(7805) on the main PCB.2. Check the D01D~D05D, R05C on the main PCB.
NO
YES
Is the output voltageof IC01A(7036) on the
main PCB DC5V?
NO
1. Exchange IC01D(7812) on the main PCB.2. Check the D01D~D05D, R05C on the main PCB.
1. Exchange IC01A(7036) on the main PCB.
Is the output voltage oftransformer AC24V & AC13V?
1. Exchange OSC.2. Check the pattern around OSC on the main PCB.
Is the input voltageof remote-controller
DC12V?
YES
NO
YES
Is the power ON?NO
1. Exchange or exchange FUSE.2. Check the input voltage of Main PCB ASS'Y.
1. Check or exchange the IC01D on the Main PCB.2. Check or exchange the Connector (RED, BROWN) of the remote controller.
Possible trouble 1 : The unit does not operate.
Possible trouble 2 : The remote-controller does not operate.
— 15 —
Electronic parts Troubleshooting Guide
YES
NO
YES
NO
NO
Is the connection betweenMAIN PCB and remote-controller
correct?
Is there Check(F**) onthe remote controller LCD?
1. Check or repair Connector wiring.2. Exchange the Connector.
Is the input power voltage ofremote-controller DC12V?
Do Keys have troubles?
Exchange remote-controller.
Exchange remote-controller.
NO
YES 1. Replace the pressed key.2. Exchange the Knob or Key.
YES
NO
1. Remove cause of Check.2. Reenergize the power supply.
YES
YES
Is there OSC vibration onthe remote-controller PCB?
NO
1. Check or exchange IC01D (7812) on the MAIN PCB.
1. Exchange OSC2. Check the pattern around OSC on the remote-controller PCB.
Is any key on the remote-controllerkeeping pressed?
1. Check Keys.2. Repair or exchange Key.
Is there trouble in theremote-controller PCB
ASS'Y?
NO
YES
NO
Are there trouble inLCD parts?
YES1. Check crack, damage of LCD.2. Check LCD pattern.
1. Check or repair all IC with dust or moisture on the PCB.2. Exchange remote-controller PCB.
Possible trouble 3 : Key input of remote-controller does not respond.
Possible trouble 4 : LCD display on the remote-controller shows some trouble.
— 16 —
Electronic parts Troubleshooting Guide
YES
YES
NO
YES
Is the cooling mode?1. Press cooling operation key.2. After reenergizing power supply, press power "ON/OFF" button.
YES
NOIs the unit operating? 1. Press power ON/OFF button.
Is the outputvoltage of Micom's 4PIN on the
MAIN PCB DC0V?
Is the magnetic contactorfor compressor OK?
1. Check Compressor and Capacitor for Compressor.
NOTE: 3ø model has not capacitor for compressor.
YES
NO 1. Set flowing. 'Set Temp. < Room Temp.'
NO
NO
YES
Is the voltagebetween 1PIN of CN-COMP and
NEUTRAL 220V?
NO
1. Check or exchange IC02D.2. Check 3-minutes time delay.
1. Check or exchange RY4.
Set Temp. < Room Temp.?
1. Check the wiring of Magnetic contactor.2. Exchange Magnetic contactor.
Possible trouble 5 : No cooling operation performed.
— 17 —
Electronic parts Troubleshooting Guide
Is the heater LCD "ON"?1. Reconnetting power supply. press Heater Key.
Is the heater operation? 1. Select heater operation mode.
Is the outputvoltage of Micom's 13PIN on the
MAIN PCB 5V?
Is the magnetic contactor forheater OK?
Check or exchange E/Heater.
1. Set following. 'Set temp. > Room temp.'
1. Check or exchange IC01D, IC02D on the MAIN PCB.
Is the voltagebetween 1PIN of CN6 and
NEUTRAL 220V?1. Check or exchange RY13.
Set temp. > Room temp.?
1. Check the wiring of Magnetic contactor.2. Exchange Magnetic contactor.
YES
YES
NO
YES
YES
NO
YES
NO
NO
NO
YES
NO
Possible trouble 6 : No heater operation performed.
— 18 —
Electronic parts Troubleshooting Guide
Is the indoor fan operation?1. Press cooling or fan operation or heater operation key.
Is the outputvoltage of Micom's 3PIN on
the MAIN PCB 5V?
Is the magneticcontactor for humidifier OK?
Check the humidifier.
1. Press humidifier Key.
1. Check or exchange IC02D on the MAIN PCB.
Is the voltagebetween 1PIN of CN5 and
NEUTRAL 220V?1. Check or exchange RY3.
Is the HUMID LCD "ON"?
1. Check the wiring or Magnetic contactor.2. Exchange Magnetic contactor.
YES
YES
NO
YES
YES
NO
NO
NO
YES
NO
Possible trouble 7 : No humidifier operation performed.
— 19 —
Electronic parts Troubleshooting Guide
Is the unit operating?
Is the outputvoltage of Micom's 10PIN on
the MAIN PCB 5V?
Is the "Power relay" forindoor motor OK?
Check the indoor motor.
1. Press power ON/OFF button.2. Reconnect the power supply.
Is the voltagebetween 1PIN of CN8 and
NEUTRAL 220V?
1. Check or exchange IC01D, IC02D on the main PCB.
1. Check or exchange RY10.
1. Check the wiring of "Power relay".2. Exchange "Power relay".
YES
YES
YES
NO
NO
NO
YES
NO
Is the compressor operating?
1. Check wiring for outdoor motor and magnetic contactor.2. Check outdoor motor & capacitor.
Is it cooling operation? 1. Press power "ON/OFF" button.2. Select cooling operation.
1. Set following. Set temp. < Room temp.2. Wait, if the unit has operating with 3-minute time delay.
YES
NO
YES
NO
Possible trouble 8 : Indoor motor does not operate.
Possible trouble 9 : Outdoor motor does not operate.
Features of Controller
— 20 —
1. Main Controller Circuit Diagram
— 21 —
2. Feature of Main Controller
— 22 —
3. Feature of Remote-Controller PCB ASS'Y
4. Feature of Remote-Controller LCD
— 23 —
5. Error Mode & Corrective Method
6. Principal part list of controller
7. Principal part list of Main PCB ASM 8. Principal part list of Remote Controller
Error mode
F01
F04
F05
F02
F03
Cause of error
OPEN/SHORT ofroom temp.sensor
OPEN/SHORT ofoutdoor pipesensor
OPEN/SHORT ofindoor pipe temp.sensor
OPEN/SHORT ofoutdoor roomtemp. sensor
CommunicationError
RemarkSensing condition of error
Voltage of sensing: Over 4.8VVoltage of sensing: Less than
0.5V
Voltage of sensing: Over 4.8VVoltage of sensing: Less than
0.5V
1. Check the voltage of "CO1H"on the remote controller.
2. Check the temp. sensor ofremtote controller.
1. Check the voltage between PIN1 and 2 of CN-A cycle/CN-Bcycle ON the main PCB.
2. Check the temp. sensor of rem-tote controller.
1. Check the voltage between PIN 3and 4 of CN-A cycle/CN-B cycle.
2. Check the temp. sensor ofindoor pipe.
1. Check the voltage betweenPIN 1 and 3 of CN-TEMPOUT on the main PCB.
2. Check the temp. sensor ofoutdoor room.
1. Check the connecting wirebetween main PCB remotecontroller.
2. Check the input voltage ofremote-controller.
3. Check the wiring ofremote-controller.
Roomtemp.(25°C)= DC 2.5V
Pipetemp.(25°C)= DC 2.5V
Pipe temp.(25°C)= DC 2.2V
Roomtemp.(25°C)= DC 2.2V
Input voltage ofremote-controller
= DC 12V
Voltage of sensing: Over 4.8VVoltage of sensing: Less than
0.5V
Voltage of sensing: Over 4.8VVoltage of sensing: Less than
0.5V
Communication interruptionbetween remote controller andMain PCB for 2 minutes.
Method of SVC
LN-0880CC 6871A20085G 6711A20043A 6323A20002N -6323AQ3214M
6171AQ2138D Cooling Only(Option)
LN-1080CCLN-1380CC 6871A20085H 6711A20043A 6711A20002N 6323A20002P 6323AQ3214M 6171AQ2138D Cooling OnlyLN-1580CC (Option)LN-2080CC
Model Main PCBASM
Remote con-troller
PipeSensor A
PipeSensor B
Return AirSensor Power Trans Remark
No Part No Part Name Remarks1 0ITO874000E MICOM(Main) MICOM2 6920AQ9033F Relay3 6212AQ9002J Oscillator4 6900AQ9028D Fuse5 6102A90001A Varistor
No Part No Part Name Remark1 OITO641010B MICOM(Remote Controller) MICOM2 6304A30001C LCD3 6871A10022M Remote C PCB ASM Cooling Only
— 24 —
9. Explanation of principal function Flow Chart
Power ON?
Cooling Mode?
Time delay mode
Cooling operating
Set Temp. < Indoor Temp.
YES
YES
YES
NO
YES
YES
Stop condition?
YES
1. Initialize "micom".2. A/D convert.3. Main PCB: Waiting cooling operation.4. Remote controller: Waiting input.
YES
START(Power supply)
Go to A
Fan only operating
Stop condition?
YES
Go to A
Dehumidification Mode?
Dehumidification operating
YES
Stop condition?
YES
Go to A
Set Temp. > Indoor Temp.
Heater operating
YES
Heater operation mode?
YES
Stop condition?
YES
NO
NO
NO NO
NO
NO
NO
NO
A
YES
Go to A
— 25 —
Exploded View and Replacement Parts List
359012
354210 713269
346810
249951
261704
268714
552111
W6920
330870
W4400
145610
1. Indoor Unit• Exploded View (LN-08/10/13/15/2080CC)
— 26 —
Exploded View and Replacement Parts List
5540
31
5660
01
6499
50
5522
03
4353
11
5541
60
W0C
ZZ
W69
20
3468
11
5590
10
2. Outdoor Unit• Exploded View (LN-08/10/13/15/2080CC)
— 27 —
Exploded View and Replacement Parts List
W4400 BELT, V 4400A30001V 1
W0CZZ CAPACITOR, DRAWING 2H00841J 2
554160 COMPRESSOR ASSY, FINAL 5417A20007F 1
554031 CONDENSER ASSY, BENT 5403AP2618H 4
249951 CONTROL BOX ASSEMBLY, INDOOR 4995A10043D 1
649950 CONTROL BOX ASSY, OUTDOOR 4995AP2608K 1
330870 DRAIN PAN ASSEMBLY 3087A20009B 2
354210 EVAPORATOR ASSY, FIRST 5421A20029C 1
559010 FAN ASSEMBLY, PROPELLER 0A00026B 4
359012 FAN, SIDE 5835A20001A 1
435311 GRILLE ASSY, DISCHARGE(OUTDOOR) 2A00144P 2
346811 MOTOR ASSEMBLY, OUTDOOR 4680AP2610B 2
346810 MOTOR ASSY, INDOOR 4681A20018B 1
145610 PULLEY ASSEMBLY 3A00217R 1
145610 PULLEY ASSY 4561A30001L 1
268714 PWB(PCB) ASSY, MAIN 6871A20085G 1
W6920 RELAY 6920AP3400A 2
694790 REMOTE CONTROLLER ASSY 6711A20043A 1
566001 SWITCH, MAGNET 2A01031A 1
713269 THERMISTOR ASSY 6323A20002N 1
261704 TRANSFORMER, POWER 6171AQ2138D 1
552111 TUBE ASSY, CAPILLARY 5211A20297K 1
552203VALVE, SERVICE 2A00468C 1
VALVE, SERVICE 2A00469H 1
LOCATION No. DESCRIPTION LN-0880CC QUANTITY
• Replacement Parts ListLN-0880CC
— 28 —
Specification of components
W4400 BELT,V 4400A30002M 1
W0CZZ CAPACITOR,DRAWING 2H00841J 2
554160 COMPRESSOR 5417A20008G 2
554031 CONDENSER ASSY,BENT 5403AP2618B 4
249951 CONTROL BOX ASSEMBLY,INDOOR 4995A10043C 1
649950 CONTROL BOX ASSY,OUTDOOR 4995A20080D 1
330870 DRAIN PAN ASSEMBLY 3087A20009B 1
354210 EVAPORATOR ASSY,FIRST 5421A20029D 2
559010 FAN ASSEMBLY,PROPELLER 0A00026B 2
359012 FAN,SIDE 5835A20003A 1
435311 GRILLE ASSY,DISCHARGE(OUTDOOR) 2A00144P 2
346811 MOTOR ASSEMBLY,INDOOR 4681A20025C 2
346810 MOTOR ASSEMBLY,OUTDOOR 4680AP2610B 2
145610 PULLEY ASSEMBLY 3A00217R 1
145610 PULLEY ASSY 4561A30002B 1
268714 PWB(PCB) ASSY,MAIN 6871A20085H 1
W6920 RELAY 6920AP3400A 2
694790 REMOTE CONTROLLER ASSY 6711A20043A 1
566001 SWITCH,MAGNET 2A01031A 2
713269THERMISTOR ASSY 6323A20002N 1
THERMISTOR ASSY 6323A20002P 1
261704 TRANSFORMER,POWER 6171AQ2138D 1
552111 TUBE ASSY,CAPILLARY 5211A20297E 2
552203VALVE,SERVICE 2A00499E 2
VALVE,SERVICE 2H01890M 2
LOCATION No. DESCRIPTION LN-1080CC QUANTITY
• Replacement Parts ListLN-1080CC
— 29 —
Exploded View and Replacement Parts List
W4400 BELT, V 4400A30002M 1
W0CZZ CAPACITOR, DRAWING 2H00841J 4
554160 COMPRESSOR 5417A20007H 2
554031 CONDENSER ASSY, BENT 5403AP2618H 8
249951 CONTROL BOX ASSEMBLY, INDOOR 4995A10043C 1
649950 CONTROL BOX ASSY, OUTDOOR 4995AP2608M 2
330870 DRAIN PAN ASSEMBLY 3087A20009D 2
354210 EVAPORATOR ASSY, FIRST 5421A20029B 1
559010 FAN ASSEMBLY, PROPELLER 0A00026B 4
359012 FAN, SIDE 5835A20003B 1
435311 GRILLE ASSY, DISCHARGE(OUTDOOR) 2A00144P 4
346811 MOTOR ASSEMBLY, INDOOR 4681A20025C 1
346810 MOTOR ASSEMBLY, OUTDOOR 4680AP2610B 4
145610PULLEY ASSEMBLY 3A00217R 1
PULLEY ASSY 4561A30002A 1
268714 PWB(PCB) ASSY, MAIN 6871A20085H 1
W6920 RELAY 6920AP3400A 1
694790 REMOTE CONTROLLER ASSY 6711A20043A 1
566001 SWITCH, MAGNET 2A01031A 2
713269THERMISTOR ASSY 6323A20002N 1
THERMISTOR ASSY 6323A20002P 1
261704 TRANSFORMER, POWER 6171AQ2138D 1
552111 TUBE ASSY, CAPILLARY 5211A20297T 2
552203VALVE, SERVICE 2A00468C 2
VALVE, SERVICE 2A00469H 2
LOCATION No. DESCRIPTION LN-1380CC QUANTITY
• Replacement Parts ListLN-1380CC
— 30 —
Exploded View and Replacement Parts List
W4400 BELT, V 4400A30002G 1
W0CZZ CAPACITOR, DRAWING 2H00841J 4
554160 COMPRESSOR 5417A20007F 2
554031 CONDENSER ASSY, BENT 5403AP2618H 8
249951 CONTROL BOX ASSEMBLY, INDOOR 4995A10043C 1
649950 CONTROL BOX ASSY, OUTDOOR 4995AP2608M 2
330870 DRAIN PAN ASSEMBLY 3087A20009F 2
354210 EVAPORATOR ASSY, FIRST 5421A20029E 1
559010 FAN ASSEMBLY, PROPELLER 0A00026B 4
359012 FAN, SIDE 5835A20003B 1
435311 GRILLE ASSY, DISCHARGE(OUTDOOR) 2A00144P 4
346811 MOTOR ASSEMBLY, INDOOR 4681A20025D 1
346810 MOTOR ASSEMBLY, OUTDOOR 4680AP2610B 4
145610PULLEY ASSEMBLY 3A00217R 1
PULLEY ASSY 4561A30002A 1
268714 PWB(PCB) ASSY, MAIN 6871A20085H 1
W6920 RELAY 6920AP3400A 1
694790 REMOTE CONTROLLER ASSY 6711A20043A 1
566001 SWITCH, MAGNET 2A01031A 2
713269THERMISTOR ASSY 6323A20002N 1
THERMISTOR ASSY 6323A20002P 1
261704 TRANSFORMER, POWER 6171AQ2138D 1
552111 TUBE ASSY, CAPILLARY 5211A20297T 2
552203VALVE, SERVICE 2A00469H 2
VALVE, SERVICE 2A00468E 2
LOCATION No. DESCRIPTION LN-1580CC QUANTITY
• Replacement Parts ListLN-1580CC
— 31 —
Exploded View and Replacement Parts List
W4400 BELT, V 4400A30002J 1
W0CZZ CAPACITOR, DRAWING 2H00841J 4
554160 COMPRESSOR 5417A20007G 2
554031 CONDENSER ASSY, BENT 5403AP2618H 8
249951 CONTROL BOX ASSEMBLY, INDOOR 4995A10043C 1
649950 CONTROL BOX ASSY, OUTDOOR 4995AP2608M 2
330870 DRAIN PAN ASSEMBLY 3087A20009F 2
354210 EVAPORATOR ASSY, FIRST 5421A20029H 2
559010 FAN ASSEMBLY, PROPELLER 0A00026B 4
359012 FAN, SIDE 5835A20003D 1
435311 GRILLE ASSY, DISCHARGE(OUTDOOR) 2A00144P 4
346811 MOTOR ASSEMBLY, INDOOR 4681A20031D 1
346810 MOTOR ASSEMBLY, OUTDOOR 4680AP2610B 4
145610PULLEY ASSEMBLY 3A00217S 1
PULLEY ASSY 4561A30003C 1
268714 PWB(PCB) ASSY, MAIN 6871A20085H 1
W6920 RELAY 6920AP3400A 1
694790 REMOTE CONTROLLER ASSY 6711A20043A 1
566001 SWITCH, MAGNET 2A01031A 2
713269THERMISTOR ASSY 6323A20002N 1
THERMISTOR ASSY 6323A20002P 1
261704 TRANSFORMER, POWER 6171AQ2138D 1
552111 TUBE ASSY, CAPILLARY 5211A20297U 2
552203VALVE, SERVICE 2A00469H 2
VALVE, SERVICE 2A00468E 2
LOCATION No. DESCRIPTION LN-2080CC QUANTITY
• Replacement Parts ListLN-2080CC
— 32 —
Memo
— 33 —
Memo
P/No.: 3828A30027Z
Novermber, 2001
Printed in Korea