Hitachi PC-ARF Technical Catalogue page 400

5 Centralised remote controls
PSC-A64S
3 When selecting the group, the setting conditions of each group are indicated.
i. By operating by the remote control switch, the content of the setting is indicated.
Zone show the operating conditions of each zone as follows;
• OFF ... Stoppage of All Groups in Zone
• ON ... Operation of One or More Group in Zone

• Flickering ... Failure in One or More Group in Zone

show the operating conditions of each group as follows;
• Turned OFF: Stop

• Turned ON: Operation

• Flickering: Abnormality
The Run indicator (Red Lamp) shows the followings;
• Turned OFF: All indoor units stop.
• Turned ON: More than 1 group in operation.
• Flickering: More than 1 group in abnormal condition.
N O T E
• The indication of setting temperature "- -" shows no setting of temperature.
• When the setting target group is "AA" (All Groups), the indications of operation mode, set temperature, fan speed, louver angle and
remote control switch not available are indicated only for the items which all groups are under the same setting.
• When the setting target group is "A-AA" (All Indoor Units), the indication "" turns ON when there is one or more group in operation in
each zone, and also flickers when there is one or more group in failure in each zone.

Setting of operation mode
<Function>
"COOL" Operation: To cool the room temperature by distributing the cooled air.
"HEAT" Operation: To heat the room temperature by distributing the heated air.
"DRY" Operation: To dehumidify more than standard cooling operation.
"FAN" Operation: To circulate the room air.
N O T E
The recommended temperature for each operation is as follows:
"COOL" Operation: 27~29°C / "HEAT" Operation: 18~20°C / "DRY" Operation: 23~25°C
1 Depress the "ZONE" switch and the "GROUP" switch and select the setting target.
(Refer to item "Setting target selection and monitoring operation status").
2 Depress the "MODE" switch.
The operation mode is changed in the following order.
N O T E
• The above indications show the case of setting operation mode for "Zone 3, Group 6". The same setting procedure shall be performed
for other groups.
• Some operation modes can not be set according to the unit model. Contact to HITACHI dealer or your distributor for details.
• The operation mode can be set while the unit is stopped or in operation.
384
TCGB0106 rev.0 - 12/2014
FAN COOL HEAT DRY
Operating Conditions of Each
Group (ex. In case of "COOL"
,"HIGH" and "28ºC")
Operating Conditions of Each
Zone (ex. In case of more than
one group of each zone 1~3 in
operation)
Operating conditions of each
group (ex. In case of groups
1 ~ 5 of zone 3 in operation)
The above figure shows the
case of selecting "ZONE 3,
GROUP 6".
The above figure shows
the case of setting "HEAT"
operation.