Haier AU52NFIAKA [87/139] Commercial air conditione

Haier AU52NFIAKA [87/139] Commercial air conditione
If the running current is 15% of the
nominal value (at max. frequency)
4. Confirm heating operation
Set the unit in heating mode and begin to run
start
If blowing warm air?
If air circulation is OK
Make all indoor unit running
Confirm compressor state
Confirm the louver direction
Once outdoor stops, the unit
can work only 2 minutes
and a half later
If temp. drop between air outlet/indlet is normal
If the operation voltage is OK
230V10%)
If working pressure is normal
normal
Check power voltage and powe
r
circuit.
Check indoor/outdoor temp.
Check piping length and
refrigerant charge.
Check compressor running
frequency and if there is
abnormal noise
Commercial Air Conditioner
Model: AU28/342FHAIA,
AU522FIAKA, AU52,60NFIAKA
-84-

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