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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
Introduction ...................................................................................................................................................12
Installation .....................................................................................................................................................13
Selection of the Best Location..................................................................................................................16
Piping Length and Elevation.....................................................................................................................17
How to Fix Installation Plate.....................................................................................................................18
Drill a Hole in the Wall ..............................................................................................................................18
Drain hose junction...................................................................................................................................18
Flaring work and connection of piping.......................................................................................................19
Flaring work..............................................................................................................................................19
Connection of Piping Indoor.....................................................................................................................20
Connection of the Pipes-Outdoor.............................................................................................................26
Connecting the cable between indoor unit and outdoor unit...................................................................26
Connect the Cable....................................................................................................................................26
Checking the drainage and forming the pipings........................................................................................28
Checking the Drainage.............................................................................................................................28
Form the Piping........................................................................................................................................29
AIR PURGING ................................................................................................................................................29
Air purging................................................................................................................................................30
Air purging with vacuum pump.................................................................................................................30
Test Running .................................................................................................................................................33
Operation .......................................................................................................................................................34
Function of Controls .................................................................................................................................34
Display Function ......................................................................................................................................38
Self-diagnosis Function............................................................................................................................38
Remote Control Operations......................................................................................................................39
Disassembly ..................................................................................................................................................40
Indoor Unit................................................................................................................................................40
Troubleshooting Guide.................................................................................................................................43
Refrigeration Cycle Diagram ....................................................................................................................43
2-way, 3-way Valve .................................................................................................................................44
Cycle Parts...............................................................................................................................................50
Electronic Parts ........................................................................................................................................51
Schematic Diagram.......................................................................................................................................61
Electric Control Device.............................................................................................................................61
Wiring Diagram.........................................................................................................................................64
Components Location ..............................................................................................................................66
Product Specifications .................................................................................................................................71