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Test Run 2. Settings of slave outdoor unit Function SW01B Setting Slave 1 Slave 2 Slave 3 Function Inv Back Up Unit Back Up Pump Out ON 1 2 3 4 5 6 7 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 56 - ON SW02B Setting 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ON 1 2 3 4 5 6 7 3. Settings of corresponding outdoor unit ON 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ON SW01B Setting 1 2 3 4 5 6 7 ON SW02B Setting 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Remarks Remarks LGE Internal Use Only
Replacement procedure for Compressor(ARUN50LT2 - ARUN480LT2) 1. Replacement procedure for Compressor.................................58 1.1 Replacement procedure......................................................58 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 57 - LGE Internal Use Only
Page 1 and 2:
System Outdoor Unit R410A SERVICE M
Page 3 and 4:
Safety Precautions Copyright ©2007
Page 5 and 6: Ventilate before operating air cond
Page 7 and 8: Use power cables of sufficient curr
Page 9 and 10: Safely dispose of the packing mater
Page 11 and 12: 1. Model Names 1.1 Indoor Unit * AR
Page 13 and 14: 2.2 Outdoor Units 2.2.1 Cooling Onl
Page 15 and 16: 3. Combination of Outdoor Units 3.1
Page 17 and 18: 4. Nomenclature 4.1 Indoor Unit ARN
Page 19 and 20: Part 2 Outdoor Units Copyright ©20
Page 21 and 22: Function Copyright ©2007 LG Electr
Page 23 and 24: 1.3 Master and slave Unit's EEV con
Page 25 and 26: 2.1.2 Oil return control on heating
Page 27 and 28: 2.3 Stopping operation 2.3.1 Stoppi
Page 29 and 30: 3.2 Discharge temperature control
Page 31 and 32: 4. Other control 4.1 Initial setup
Page 33 and 34: 4.2 Emergency operation - If a comp
Page 35 and 36: ■ Sensor Check Error Code Display
Page 37 and 38: Liquid Pipe Gas Pipe Procedure 1. A
Page 39 and 40: CAUTION 1. Guaranteed Temperature r
Page 41 and 42: 4.7 Pump Out This function gathers
Page 43 and 44: 4.8 Auto Back Up Function_Inverter
Page 45 and 46: 4.10 Night Low Noise Function In co
Page 47 and 48: 4.11 Vacuum Mode This function is u
Page 49 and 50: Part 3 PCB Setting and Test Run Cop
Page 51 and 52: 2. How to cope with Test Run abnorm
Page 53 and 54: ■ Checking according to dip switc
Page 55: Function Dry Contact Snow Forced De
Page 59 and 60: Part 4 Trouble shooting guide Copyr
Page 61 and 62: Copyright ©2007 LG Electronics. In
Page 63 and 64: 2.2 Fan Motor Checking Item Symptom
Page 65 and 66: • EEV Coil and body(Outdoor unit)
Page 67 and 68: 2.4 Phase Bridge Diode Checking Met
Page 69 and 70: 2.6 Fan IPM Checking Method 2.7 UW1
Page 71 and 72: 2.10 Other Copyright ©2007 LG Elec
Page 73 and 74: Outdoor unit related error Display
Page 77 and 78: Outdoor unit related error Copyrigh
Page 79 and 80: Outdoor unit related error Copyrigh
Page 83 and 84: Error No. 01 Indoor unit air sensor
Page 86 and 87: Troubleshooting Guide float A:Point
Page 88 and 89: Troubleshooting Guide Error No. 06
Page 90 and 91: Troubleshooting Guide Error No. 10
Page 92 and 93: Troubleshooting Guide Error No. 21*
Page 100 and 101: Troubleshooting Guide * Measuring r
Page 106 and 107:
Troubleshooting Guide Error No. 35*
Page 108 and 109:
Troubleshooting Guide Error No. Err
Page 110:
Page 113 and 114:
Error No. 52* Master 521 Slave1 522
Page 115 and 116:
Error No. Error Type Error Point Ma
Page 117 and 118:
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Page 122 and 123:
Troubleshooting Guide Measuring inp
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Page 136 and 137:
Troubleshooting Guide Error No. 151
Page 138 and 139:
Page 140:
P/NO : 3828A24006W OCT, 2007
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