30
OPERATION PROCEDURE
<DEMAND>
The “DEMAND” is indicated when the demand input is
set by the outside input function.
The indication is indicated for the group with demand
setting and the “DEMAND” indication flickers when the
demand signal is input.
Contact your distributor or dealer of HITACHI for
details.
<FILTER>
Filter Clogging:
When the “FILTER” indication is indicated, it shows
that the air filter of the indoor unit is clogged. Clean the
air filter. After cleaning, depress the “RESET” switch
and the “FILTER” indication is turned OFF.
Indication in Abnormal Conditions
<ABNORMAL>
a. The Run lamp (Red lamp) is flickered when there is
a group in abnormal condition.
b. The “ALARM” is indicated on the LCD.
c. The “
°” indication of the group in abnormal
condition is flickered.
d. Depress the “GROUP” switch and select the group
with alarm, the indication of unit Nº, model code,
alarm code, and the normal indication, is repeatedly
indicated (there is a case that the model code may
not be indicated according to the unit model).
e. In case that multiple units are in abnormal
conditions, the above indication is indicated by
turns.
Check the contents of the LCD indication and contact
your distributor or dealer of HITACHI for details.
<POWER FAILURE>
a. All the indications are disappeared.
b. In case of unit stoppage due to the power failure, the unit is not started again after the power
recovery. Perform the starting operation again.
c. In case of instant power failure within 2 seconds, the unit is automatically started again.
<ELECTRICAL NOISE>
All the indications are disappeared, and the unit operation may be stopped for the device
protection due to the electrical noise. Perform the starting operation again.
Flickering
In Case of Demand Setting
En el caso del ajuste de
solicitud
Turned ON
Encendido
I.U. Add.
Flickering
Turned ON
Ref. Nº
Model code
Alarm code
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