Chapters
Table of Contents
Related Manuals for LG ARTCOOL Series
Summary of Contents for LG ARTCOOL Series
- Page 1 Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(General) MODEL : ARTCOOL-Inverter Type CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
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Page 2: Table Of Contents
1. Check before Test Run ....................25 2. Test Run Flow Chart ....................26 3. Test Run Detail ......................27 Part 4 Trouble Shooting Guide ....................28 - 1 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Part 1 General Information
Part 1 General Information 1. Safety Precautions ......................3 2. Nomenclature........................6 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Safety Precautions
Do not turn the air-conditioner ON or OFF by plugging or unplugging the power plug. There is risk of fire or electrical shock. - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 5 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 6 Check the drainage of the indoor unit after the repair. If drainage is faulty the water to enter the room and wet floor. - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 7: Nomenclature
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean Nano Plasma F+4Way+(A/changeove)+A/clean+ Serial No. LG Model De velopment Serial No. * ARTCOOL COLOR (SF) Kiss Silver Gold - 6 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 8: Part 2 Functions & Controls
1. List of Controls & Functions ..................8 2. Basic Mode Controls......................10 3. Special Mode Controls....................12 4. Utility Functions ......................13 5. Protection Functions & Controls .................18 - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 9: List Of Functions & Controls
Thermo ON/OFF Temp., Blow out logic Optional Notes: The Exploded View part has the particular Function table for each model. - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 10 Comp. Torque Control For vibration prevention Optional Notes: The Exploded View part has the particular Function table for each model. - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 11: Basic Mode Controls
- After compressor off, the compressor can restart minimum 2 minutes later. Notes: The Temp. of Thermo ON/OFF are different in heating mode and fuzzy operation for heating. - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 12 Heating thermo off +0.5°C Setting Temp. Cooling thermo off -0.5°C Switching point -2°C Cooling Cooling Mode Heating operation operation operation - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 13: Special Mode Controls
• In this operation, before we feel cold the set temperature and air volume is set automatically to save energy. • The operation time and the other thing was decided by experiment. - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 14: Utility Functions
• The function is easy to operate as it is accessed through the Remote controller. Unit Operation Indoor Setting step L Low Comp. Time 13~14 minutes 1 minute 2~3 minutes - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 15 Mode 8 Mode 7 65° Mode 6 Mode 5 Mode 4 20° Mode 3 Mode 2 8° Mode 1 OPEN - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 16 - State of operation ON/OFF - Operation mode/setting temp./selected airflow speed - Sleep timer mode/remaining time of sleep timer - Chaos Swing - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 17 25°C where the compressor turns on COMP Discharge Temerature Preheat Off 25˚C 15˚C Preheat On - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 18 0°C 3°C Logic 1, Blink 1time Blow out for Detect to Logic 2, Blink 2time 2°C 4°C Room Temp. - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 19: Protection Functions & Controls
Comp. Step 4 3˚C Comp. Step 2 Comp. off T1: 0 ~ 2°C NOTE: Some Models are different by T1. - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 20 Setting Open step 4-Way Setting Setting Speed Outdoor Speed Hi Speed Setting Speed Indoor Start Starting Pre-Heat Deice STEP - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 21 3. When the frequency changes, the rotation speed of the compressor changes resulting in an changed refrigerant circu- lation. This leads to changeable amount of the heat exchange per unit. - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 22 - I1 :Current of operating frequency down(5.5A ~ 12.0A) - I2 : Current of compressor cut off(9.0A ~ 14.0A) * ( I1, I2 depends on model ) - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 23 T2 : 105 ~ 110°C ( Model by model ) NOTE: Some Models are different by T1, and T2. - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 24 - Indoor pan: Strong wind - COMP frequency: Step 5 - COMP compulsorily operates for about 18 minutes irrespective of indoor temperature. - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 25: Part 3 Test Run
3. Test Run 1. Check before Test Run....................25 2. Test Run Flow chart .......................26 3. Test Run Detail........................27 - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 26: Check Before Test Run
2.0 MΩ as a result of refrigerant accumulation in the internal compressor. If the insulation resistance is less than 2.0 MΩ, turn on the main power supply. - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 27: Test Run Flow Chart
(comp.,Fan, others ) to Heating mode Is hot air discharged ? Refer to Troubleshooting After Hot Start Guide Normal - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 28: Test Run Detail
The pressure of the gas side Refrigerant TEMP. service valve. R-22 35°C (95°F) 4~5kg/cm G(56.8~71.0 P.S.I.G.) R-410A 35°C (95°F) 8.5~9.5kg/cm G(120~135 P.S.I.G.) - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 29: Part 4 Trouble Shooting Guide
3. Balance Refrigerant of the three way valve ..............31 4. Evacuation ........................32 5. Gas Charging ........................33 6. Cycle Part ........................34 7. Self Diagnosis.........................35 8. Electronic Parts ......................38 - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 30: Way, 3-Way Valve
Open Pressure check (with charging cylinder) Open Open (Servicing) Open Gas releasing (with charging cylinder) Open Open (Servicing) - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 31: Pumping Down
– 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. - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 32: Evacuation
(4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dirty or depleted, replenish as needed. - 31 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 33: Gas Charging
1 minute and then repeat the procedure (pumping down-pin). - 32 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 34: Cycle Part
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty. - 33 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 35: Self Diagnosis
1time 4 times • Comp Phase Current Error (180 Driver Comp Control 3 sec Model Only) (4 Led Model) - 34 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 36 Before conducting a checking or repairing job, pull out the plug out of the outlet and make sure that the lamp on the control board outdoor unit is off. - 35 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 37 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 36 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 38: Electronic Parts
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 37 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 39 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 38 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 40 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 39 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 41 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 40 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 42 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 41 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 43 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 42 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 44 Be sure to turn off power switch before con- nect or disconnect connector, or parts damage may be occurred. - 43 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 45 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 44 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 46 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 45 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 47 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 46 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 48 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. - 47 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 49 JAN. 2008 P/NO : MFL36547601...
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