Table Of Contents - LG Single A Svc Manual

Part 1 General Information ..........................................................................................................2
1. Safety Precautions........................................................................................................3
2. Model Line up ................................................................................................................6
3. Nomenclature ................................................................................................................7
Part 2 Functions & Controls........................................................................................................8
1. List of Functions & Controls........................................................................................9
2. Air flow .........................................................................................................................11
3. Air purifying.................................................................................................................13
4. Installation Functions .................................................................................................16
5. Reliability .....................................................................................................................19
6. Convenience Functions & Controls .........................................................................20
Part 3 Control logic ....................................................................................................................31
1. Compressor .................................................................................................................32
2. Step(frequency) control..............................................................................................34
3. Reversing valve operaton ..........................................................................................37
4. Discharge pipe control ...............................................................................................38
5. Input Current Control..................................................................................................39
6. Outdoor Fan Control...................................................................................................41
7. Defrost Control............................................................................................................43
8. LEV Control .................................................................................................................44
9. Oil restoration operation ............................................................................................50
10. Compressor warm-up control logic ........................................................................50
11. Heat sink control .......................................................................................................51
Part 4 Test Run ..........................................................................................................................52
1. Check before Test Run ...............................................................................................53
2. Test Run Flow chart ....................................................................................................54
Part 5 Trouble Shooting Guide ................................................................................................56
1. Self-diagnosis Function .............................................................................................57
2. Pump Down .................................................................................................................59
3. Evacuation ...................................................................................................................60
4. Gas Charging...............................................................................................................61
5. Cycle Part.....................................................................................................................62
6. Electronic Parts...........................................................................................................63
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Air Conditioner Service Manual
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