Contents
1 Precaution....................................................................................................................4
1
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1
S
a
f
e
t
y
P
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caution...................................................................................................................................4
1.2 Warning..................................................................................................................................................4
2 Function .......................................................................................................................7
3 Dimension ....................................................................................................................8
4 Specification ................................................................................................................10
5 Refrigerant cycle diagram.........................................................................................14
6 Operation limits .........................................................................................................15
7 Wiring diagram...........................................................................................................16
8 Installation details......................................................................................................23
8.1 Wrench torque sheet for installation ....................................................................................................23
8.2 Connecting the cables .........................................................................................................................23
8.3 Pipe length and the elevation .............................................................................................................. 23
8.4 Air purging of the piping and indoor unit.............................................................................................. 24
8.5 Pumping down (Re-installation)...........................................................................................................26
8.6 Re-air purging (Re-installation)............................................................................................................27
8.7 Balance refrigerant of the 2-way, 3-way valves................................................................................... 28
8.8 Evacuation ...........................................................................................................................................29
8.9 Gas charging........................................................................................................................................ 30
9 Electronic function ....................................................................................................31
9.1 Electronic control working environment...............................................................................................31
9.2 Proper symbols and their meaning...................................................................................................... 31
9.3 Function ...............................................................................................................................................32
9.4 Protection.............................................................................................................................................32
9.5 Fan only mode ..................................................................................................................................... 33
9.6 Cooling mode.......................................................................................................................................33
9.7 Dehumidifying mode............................................................................................................................34
9.8 Heating mode....................................................................................................................................... 34
9.9 Defrosting mode(available for heating mode) ..................................................................................... 35
9.10 Auto mode..........................................................................................................................................36
9.11 Force cooling function........................................................................................................................ 36
9.12 Sleep mode(Economic mode) ...........................................................................................................37
9.13 Auto restart function........................................................................................................................... 38
9.14 Turbo mode........................................................................................................................................38
10 Troubleshooting.........................................................................................................39
10.1 Display board ..................................................................................................................................... 39
10.2 Troubleshooting.................................................................................................................................. 41
10.3 Diagnostic chart.................................................................................................................................. 42
10.4 Resetting phenomenon often occurs during operation...................................................................... 44
10.5 Indoor fan speed out of control ......................................................................................................... 44
10.6 Temperature sensor error................................................................................................................... 45
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