Hitachi PC-ARF Technical Catalogue page 304

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5 Centralised remote controls

In Abnormal Condition

The operation indicator (Red) will be flashing when an abnormal condition of the air conditioner occurs.

The red button is indicated on the screen when there is a group in abnormal condition.

"Alarm Info." is indicated on the lower screen.

If "Alarm Info." is tapped, the following items are indicated.

a. Name of the block/group in abnormal condition

b. Refrigerant cycle number, address and model code* of indoor unit in abnormal condition

c. Alarm code

(*) The model code may not be indicated depending on the unit model.

In case that multiple indoor units are in abnormal condition, the details information of abnormality are indicated in turn

as above. In that case, the group in abnormal condition can be also selected by tapping "<" or ">" on "Alarm" informa-

tion screen. Check the contents of LCD indication and contact your dealer for details.

Monitor 1 (All Groups)

Power Failure

The display is OFF.

Once the unit is stopped by the power failure, the unit will not start again after the power recovery. Perform the start-

ing procedures again.

In case of instantaneous power failure within 2 seconds, the unit will automatically start again.

There could be a case that the display is OFF and the unit is stopped. This is caused by the activation of the micro

computer for the unit protection from the electric noise. When the unit is stopped, perform the starting procedures

TCGB0106 rev.0 - 12/2014

25/01/2010 (Mon) 10:20

: F-Level 1-A

: Group1A-07

Contact the service company.

Troubleshooting