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(3) Cooling operation confirmation
Start
Set the mode as COOL: press the button
for over 5 seconds at OFF state
No
No
No
No
No
No
No
Once outdoor stops, re-start up
the unit 2 and a half minutes
later
If blowing out cold air
If the ventilation is good
Confirm the running state of the
compressor, indoor EEV
If the louver direction
Make all indoors running
simultaneously
Temp. difference between air
outlet and air inlet is good
If running voltage is
proper (380V±10%)
If running current is in the
range of rated current±15%
(at the max. frequency)
If running pressure is proper
Normal
Yes
Yes
Yes
Yes
Yes
Yes
Check the power source
voltage, the power cable spec
and the power cable terminal
installation
Check indoor/outdoor temp.,
pipe length, refrigerant
charging amount, indoor
capacity, compressor
running frequency, outdoor
fan operation, and if
compressor sounds
abnormal noise
Check every indoor
