CONTENTS
1. Precaution..............................................................................................................................................1
1.1 Safety Precaution..........................................................................................................................1
1.2 Warning.........................................................................................................................................1
2. Function..................................................................................................................................................6
3. Dimension...............................................................................................................................................9
3.1 Indoor Units...................................................................................................................................9
3.2 Outdoor Units..............................................................................................................................11
4. Refrigerant Cycle Diagram...................................................................................................................12
5. Wiring Diagram.....................................................................................................................................13
5.1 Indoor Units.................................................................................................................................13
6. Installation details................................................................................................................................16
6.1 Wrench torque sheet for installation...........................................................................................16
6.2 Connecting the cables.................................................................................................................16
6.3 Pipe length and the elevation......................................................................................................17
6.4 Air purging with vacuum pump....................................................................................................18
6.5 Pumping down (Re-installation)..................................................................................................19
6.6 Re-air purging (Re-installation)...................................................................................................20
6.7 Balance refrigerant of the 2-way, 3-way valves..........................................................................21
6.8 Evacuation...................................................................................................................................22
6.9 Gas charging...............................................................................................................................23
7. Operation characteristics....................................................................................................................24
8. Electronic function...............................................................................................................................25
8.1 Abbreviation.................................................................................................................................25
8.2 Display function...........................................................................................................................25
8.3 Main Protection...........................................................................................................................26
9. Troubleshooting...................................................................................................................................36
9.1 Indoor unit error display..............................................................................................................36
9.2 Diagnosis and Solution...............................................................................................................37
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