LG LS300CE Bedienungsanleitung

SERVICE MANUAL

Room Air Conditioner

CAUTION

-BEFORE SERVICING THE UNIT, READ THE SAFETY

PRECAUTIONS IN THIS MANUAL.

-ONLY FOR AUTHORIZED SERVICE PERSONNEL.

MODEL : LS300CE

WEBSITE http://biz.LGservice.com

- 2 -

Contents

Details of LG Model Name (2004) ..........................................................................................3

Functions.................................................................................................................................4

Product Specifications ..........................................................................................................6

Dimensions..............................................................................................................................7

Refrigeration Cycle Diagram..................................................................................................9

Pipe Length and the Elevation.............................................................................................10

Wiring Diagram......................................................................................................................11

Operation Details ..................................................................................................................13

Display Function ...................................................................................................................20

Self-diagnosis Function........................................................................................................20

Installation .............................................................................................................................21

Operation ...............................................................................................................................37

Disassembly of the parts (Indoor Unit)...............................................................................39

3-way Valve............................................................................................................................43

Cycle Troubleshooting Guide...............................................................................................48

Electronic Parts Troubleshooting Guide.............................................................................49

Electronic Control Device.....................................................................................................55

Schematic Diagram...............................................................................................................58

Exploded View and Replacement Parts List.......................................................................60

- 3 -

Details of LG Model Name(2004)

12 -345678910

Code Type Code of Model Meaning

1 Producing Center, A~Z L: Chang-won R22 N: India

Refrigerant A: Chang-won R410A Z: Brazil

C: Chang-won R407C D: Indonesia

T: China M: Mexico

K: Turkey R22 V: Vietnam

E: Turkey R410A S: Out Sourcing

H: Thailand

2 Product Type A~Z S: Split Type Air Conditioner

3 Cooling/Heating/Inverter A~Z C: Cooling only

H: Heat pump

X: C/O + E/Heater

Z: H/P + E/Heater

V: AC Inverter C/O

N: AC Inverter H/P

Q: DC Inverter C/O

W: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating Capacity

Ex. "09" →9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase

A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase

5: 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. 1~9 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+Nano plasma+4Way F

Nano Plasma F+(A/changeove)+A/clean+Low A G

Nano Plasma F+(A/changeove)+A/clean+4way+Low A H

Tele+LED+4way I

Internet J

Plasma F+4Way+Oxy generator K

Nano Plasma F+(A/changeove)+A/clean L

Nano Plasma F+(A/changeove)+A/clean+4way M

Nano Plasma F+(A/changeove)+A/clean+PTC N

Nano Plasma F+(A/changeove)+Autoclean+4way+PTC P

Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Q

Negative ION+A/Clean R

(Nano)Plasma+Negative ION+A/Clean S

4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean

Nano Plasma F+4Way+(A/changeove)+A/clean+ U

R Mirror

W White

B Blue

D Wood

M Metal

C Cherry

- 4 -

Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

Healthy Dehumidification Mode

Sleep Mode Auto Control

Auto Air Control by the unit electronic control

Chaos Swing

Defrost control(Heating)

Hot-start Control (Heating)

• Room temperature sensor (THERMISTOR)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 seconds at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low and Auto

• Intermittent operation of fan at low speed

• Both the indoor and outdoor fan stops

during defrosting.

•Hot start will be operated after

defrosting ends.

• The indoor fan stops until the

indoor pipe temperature will be

reached at 28°C(82°F).

• The fan is switched to low(Cooling), med(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.

--- Lights up in operation

--- Lights up in Sleep Mode

--- Lights up in Timer Mode

--- Lights up in Defrost Mode or Hot Start Mode (only Heating Model)

--- Lights up during compressor running (only Cooling Model)

OUT

DOOR

- 5 -

Healthy Dehumidification Operation Mode.

( )

Remote Controller

Operation ON/OFF

Reset

Operation Mode Selection

Temperature Setting

Timer Selection

Timer Setting

JET COOL

Timer Cancel

Sleep Operation

Airflow Direction Control

(Cooling

model only) (Heating

model only)

TEMPERATURE LOW HIGH

Cooling Operation Mode.( ) Heating Operation Mode.( )

Auto Operation Mode.( )

Fan Operation Mode

Horizontal Airflow Direction Control Button(Option)

Room, Temperature Display

Setting the Time or Timer

ON OFF

SET

CANCEL

Fan Speed Selection

(Low) (Med) (High) (CHAOS)

: (High:39°C Low:11°C)

: OFF, ON, OFF ON

: Cancel Sleep Mode, Timer ON or Timer OFF

: 1, 2, 3, 4, 5, 6, 7, Off Timer

: Fan Operates without cooling or heating.

Cooling Down to 18°C

Up to 30°CHeating Down to 16°C

Up to 30°C

- 6 -

Product Specifications(Cooling Only)

* Design and Specifications subject to change without prior notice for product improvement.

Items Unit LS300CE

Power Supply ø, V, Hz 1, 208/230, 60

Cooling Capacity BTU/h 27,000/28,000

Input W 3,450/3,600

Running Current A 16.5/16.0

COMP. Locked Rotor AMP. A A: 68. B: 29

E.E.R BTU/hW 7.79/7.81

Air Circulation m3/min(cfm) 21(740)

Moisture Removal l/h(pts/hr) 3.7(7.8)

Noise Level Indoor, High dB(A) 49

(Sound Med dB(A) 46

Pressure, 1m) Low dB(A) 43

Outdoor, Max dB(A) 63

Features Temperature Control Thermistor

Air Deflection 4-way

Steps, Fan/Cool 3/3

Airflow Direction Control(up&down) Auto

Airflow Direction Control(left&right) Manual

Remocon Type Wireless LCD

Setting Temperature Range, Cooling Mode 64~86°F

Temperature Increment 2°F

Auto Operation(electronic control) Yes

Self Diagnosis Yes

Timer 24hr, On/Of

Sleep Operation Yes

Healthy Dehumidification Mode Yes

Restart Delay minutes 3

Refrigerant(R-22) Charge g(oz) 2300(81)

Power cord AWG #: P*mm2

12:3*2.5

Fuse or breaker Capacity A 30A

Connecting Cable AWG #: P*mm220:4*0.75

Connecting Tube Liquid Side mm(in) 9.52(1/4)

(ø. Socket Flare) Gas Side mm(in) 15.88(1/2)

Length, std m(ft) 7.5(24.6)

Additional Drain Hose(Outer Dia.) mm(in) 15.5(5/8)

Dimensions Indoor mm 1259*349*205

(WxHxD) in 49.6*13.7*8.1

Outdoor mm 870*800*320

in 34.3*31.5*12.6

Net Weight Indoor kg(lbs) 20

Outdoor kg(lbs) 71

(1) Indoor Unit

- 7 -

Dimensions

Tubing hole cover

Installation plate

Wmm(inch) 1,259(49.6)

Hmm(inch) 349(13.7)

Dmm(inch) 205(8.1)

Model

Dimension

30K SERIES

- 8 -

MODEL

DIM

- 8 -

L7 L6 L8 L9

L10L11

L4L5

Gas side

3-way valve

Liquid side

3-way valve

W mm(in ch) 870(34.3)

H mm(in ch) 800(31.5)

D mm(in ch) 320(12.6)

L1 mm(in ch) 370(14.6)

L2 mm(in ch) 340(13.4)

L3 mm(in ch) 25(1.0)

L4 mm(in ch) 775(30.5)

L5 mm(in ch) 25(1.0)

L6 mm(in ch) 546(21.5)

L7 mm(in ch) 162(6.4)

L8 mm(in ch) 162(6.4)

L9 mm(in ch) 54(2.1)

L10 mm(in ch) 74.5(2.9)

L11 mm(in ch) 79(3.1)

30K SERIES

(2) Outdoor Unit

- 9 -

Refrigeration Cycle Diagram

INDOOR UNIT OUTDOOR UNIT

HEAT

EXCHANGER

(EVAPORATOR)

HEAT

EXCHANGER

(EVAPORATOR)

HEAT

EXCHANGER

(CONDENSER)

HEAT

EXCHANGER

(CONDENSER)

COMPRESSOR

ACCUMU

LATOR

Suction Line

3-WAY VALVE

Evaporator Line

3-WAY VALVE

CAPILLARY TUBE

CHECK VALVE

(Heating Model only)

COOLING

HEATING

REVERSING

VALVE

(Heating Model Only)

(1) Cooling Only Models

(2) Cooling & Heating Models

- 10 -

Pipe length and the elevation

* Capicity is based on standard length and maximum allowance length is the basis of

reliability.

* Oil trap should be installed per 5~7 meters(16.4~23.0ft).

CAUTION

Outdoor unit

Indoor unit

Oil trap

Outdoor unit

Indoor unit B

In case more than 5m (16.4ft)

30k 5/8" 3/8" 7.5(25) 15(50) 30(100) 30(0.32)

(50Hz, 60Hz)

Pipe Size

Capacity

(Btu/h) GAS LIQUID

Additional

Refrigerant

g/m(oz/ft)

Max.

Length

A m(ft)

Max.

Elevation

B m(ft)

Standard

Length

m(ft)

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