Equipment information

LG LAU121HNP (ASUH121FUG0) Air Conditioner
Manufacturer
LG
Model LAU121HNP (ASUH121FUG0)
Date 2006
Category: Home electronics
Group Air Conditioner
Description Room Air Conditioner
Information
                                    

These manuals are available for the above equipment:

LG -- LAU121HNP (ASUH121FUG0) -- Service Manual
File name LG-4220-Manual-Page-1-Picture
Manual Type Service Manual
Pages 76
Size 12.97 Mbytes (13599675 Bytes)
Language english
Revision
Manual-ID/Number 3828A20926C
Date December 2006
Quality Electronic document, no scan, very well readable.
Upload date
MD5 a3a2c853e0a4630ff70e0191cbf86fab
Downloads 1286 since 11 March 2013
Information
Safety Precautions ..........................................................................................................................................................3
Dimensions......................................................................................................................................................................9
Symbols Used in this Manual ....................................................................................................................................9
Indoor Unit .................................................................................................................................................................9
Outdoor Unit ............................................................................................................................................................10
Product Specifications .................................................................................................................................................11
Installation .....................................................................................................................................................................12
Installation Parts ......................................................................................................................................................12
Installation Tools......................................................................................................................................................12
Installtion Map..........................................................................................................................................................13
Confirm the Refrigerant ...........................................................................................................................................14
Select the best Locations.........................................................................................................................................15
Piping Length and Elevation ....................................................................................................................................16
Preparing Work for Installation ................................................................................................................................17
Fixing Indoor Unit.....................................................................................................................................................18
Flaring work and connection of piping ........................................................................................................................19
Flaring work .............................................................................................................................................................19
Connection of piping-Indoor.....................................................................................................................................20
Connection of the drain hose...................................................................................................................................21
Connection of piping-Outdoor..................................................................................................................................23
Connecting the cable between indoor unit and outdoor unit ....................................................................................24
Connect the cable to the Indoor unit.........................................................................................................................24
Connection method of the connecting cable(Example) ............................................................................................25
Checking the drainage and forming the pipings.........................................................................................................26
Checking the drainage.............................................................................................................................................27
Forming the piping ...................................................................................................................................................28
AIR PURGING ................................................................................................................................................................29
Air purging ...............................................................................................................................................................29
Charging ..................................................................................................................................................................31
Panel front assembly ...............................................................................................................................................32
Test running.............................................................................................................................................................33
How to replace picture & photograph ..........................................................................................................................35
Operation .......................................................................................................................................................................36
Functions .................................................................................................................................................................36
The function of main control ....................................................................................................................................37
Display Function .....................................................................................................................................................43
Self-diagnosis Function ...........................................................................................................................................43
Remote Control Operations .....................................................................................................................................44
Disassembly ..................................................................................................................................................................45
Indoor Unit ...............................................................................................................................................................45
Schematic Diagram .......................................................................................................................................................47
Heat Pump/Cooling Only Series(Indoor Unit) ...........................................................................................................47
Heat Pump Series (Outdoor Unit)............................................................................................................................48
INDOOR UNIT P.W.B. ASSEMBLY .........................................................................................................................49
OUTDOOR UNIT P.W.B. ASSEMBLY .....................................................................................................................50
DISPLAY P.W.B. ASM.............................................................................................................................................51
Wiring Diagram ........................................................................................................................................................52
Troubleshooting Guide.................................................................................................................................................54
Refrigeration Cycle Diagram....................................................................................................................................54
Pipe length and the elevation ..................................................................................................................................55
3-way Valve .............................................................................................................................................................56
Cycle Parts ..............................................................................................................................................................62
Electronic Parts........................................................................................................................................................63
Exploded View ...............................................................................................................................................................72
Replacement Parts List.................................................................................................................................................74
LG-4220-Manual-Page-1-Picture
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