Content 
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Content 
 
 
1
 
Precaution.........................................................................................................................1
 
1.1 Safety Precaution................................................................................................................................... 1 
1.2 Warning.................................................................................................................................................. 1 
2
 
Function............................................................................................................................ 4
 
3
 
Dimension.........................................................................................................................5
 
4
 
Specification.....................................................................................................................7
 
5
 
Refrigerant cycle diagram ............................................................................................. 11
 
6
 
Operation limits..............................................................................................................12
 
7
 
Wiring diagram...............................................................................................................13
 
8
 
Installation details..........................................................................................................21
 
8.1 Wrench torque sheet for installation .................................................................................................... 21 
8.2 Connecting the cables .........................................................................................................................21 
8.3 Pipe length and the elevation ..............................................................................................................21 
8.4 Air purging of the piping and indoor unit.............................................................................................. 22 
8.5 Pumping down (Re-installation)........................................................................................................... 24 
8.6 Re-air purging (Re-installation)............................................................................................................25 
8.7 Balance refrigerant of the 2-way, 3-way valves................................................................................... 26 
8.8 Evacuation ...........................................................................................................................................27 
8.9 Gas charging........................................................................................................................................ 28 
9
 
Electronic function.........................................................................................................29
 
9.1 Electronic control working environment............................................................................................... 29 
9.2 Proper symbols and their meaning...................................................................................................... 29 
9.3 Function ............................................................................................................................................... 30 
9.4 Protection............................................................................................................................................. 30 
9.5 Fan only mode ..................................................................................................................................... 31 
9.6 Cooling mode....................................................................................................................................... 31 
9.7 Dehumidifying mode............................................................................................................................ 32 
9.8 Heating mode....................................................................................................................................... 32 
9.9 Defrosting mode(available for heating mode) ..................................................................................... 33 
9.10 Auto mode..........................................................................................................................................34 
9.11 Force cooling function........................................................................................................................ 34 
9.12 Sleep mode(Economic mode) ...........................................................................................................35 
9.13 Auto restart function........................................................................................................................... 36 
9.14 Turbo mode........................................................................................................................................ 36 
9.15 Ionizer (air clean) function ................................................................................................................. 36 
9.16 Follow me function............................................................................................................................. 36 
10
 
Model and Parameters...................................................................................................38
 
11
 
Troubleshooting.............................................................................................................40
 
11.1 Display board .....................................................................................................................................40 
11.2 Troubleshooting..................................................................................................................................41 
11.3 Diagnostic chart..................................................................................................................................42 
11.4 Resetting phenomenon often occurs during operation...................................................................... 44