Start
Set the mode as HEAT:press the button for
over 5 seconds at OFF state
Once outdoor stops, re-start up
the unit 2 and a half minutes later
Conrm the running state of
the compressor, indoor EEV
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.
If the louver direction
Temp. difference between
air outlet and air inlet is good
If running current is in the
range of rated current ±15%
(At the max. Frequency)
If running voltage is proper
(380V±10%)
Make all indoors running
simultaneously
If blowing out hot air
If the ventilation is good
If running pressure is proper
Normal
Check every indoor unit
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
(4) Heating operation conrmation
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