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2 Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions..........................................................................................................................................3
Dimensions......................................................................................................................................................9
Symbols Used in this Manual.....................................................................................................................9
Indoor Unit..................................................................................................................................................9
Outdoor Unit.............................................................................................................................................11
Installation .....................................................................................................................................................14
Selection of the Best Location..................................................................................................................17
Piping Length and Elevation.....................................................................................................................18
How to Fix Installation Plate.....................................................................................................................19
Drill a Hole in the Wall ..............................................................................................................................19
Drain hose junction...................................................................................................................................19
Flaring work and connection of piping.......................................................................................................20
Flaring work..............................................................................................................................................20
Connection of Piping Indoor.....................................................................................................................21
Connection of the Pipes-Outdoor.............................................................................................................26
Connecting the cable between indoor unit and outdoor unit...................................................................27
Connect the Cable....................................................................................................................................27
Checking the drainage and forming the pipings........................................................................................29
Checking the Drainage.............................................................................................................................29
Form the Piping........................................................................................................................................30
AIR PURGING ................................................................................................................................................31
Air purging................................................................................................................................................31
Air purging with vacuum pump .................................................................................................................31
Test Running .................................................................................................................................................34
Operation .......................................................................................................................................................35
Function of Controls .................................................................................................................................35
Display Function ......................................................................................................................................39
Self-diagnosis Function............................................................................................................................39
Remote Control Operations......................................................................................................................40
Disassembly ..................................................................................................................................................41
Indoor Unit................................................................................................................................................41
Troubleshooting Guide.................................................................................................................................44
Refrigeration Cycle Diagram ....................................................................................................................44
2-way, 3-way Valve .................................................................................................................................45
Cycle Parts...............................................................................................................................................51
Electronic Parts ........................................................................................................................................52
Schematic Diagram.......................................................................................................................................62
Electric Control Device.............................................................................................................................62
Wiring Diagram.........................................................................................................................................65
Components Location ..............................................................................................................................67
Product Specifications .................................................................................................................................72
Exploded View...............................................................................................................................................74
Replacement Parts List ................................................................................................................................78