Hitachi PSC-A1T Technical Catalogue

In Case of 4-Way Cassette Type (Example)
LCD
Indication
Air Louver
Angle
Approx.
25°
Approx.
30°
Approx.
35°
Approx.
40°
Approx.
50°
Approx.
55°
Approx.
60°
Cooling / Dry
Angle Range
Heat
Angle Range
: Recommended Angle
NOTE
• The xing angle of the louver shown above is the case of 4-way cassette type indoor unit. The xing angle is different according to unit
model. Refer to the operation manual of each model for details.
• There exists a time lag between the indicated louver position on LCD and the actual louver angle in operation. Therefore, when xing
the louver, set the angle according to the indicated louver angle on LCD.
• When the “AUTO LOUVER” switch is depressed, the louver may not stop immediately.
CAUTION
The louver angle is automatically changed during heating operation for unit control.
When heating operation is started
When dry operation is started
When temperature controller is activated
The louver angle is auto-
matically changed.
When the discharged air tem-
perature is increased over 30°C, the
louver angle automatically return to
the set position.
The LCD indication remains at the setting condition.

Unit operation
1 Depress the “ZONE” switch and “GROUP” switch and select the setting target.
(Refer to item 2 of “Setting Target Selection and Monitoring Unit Operation Status”).
The above gure shows the
case of selecting “ZONE 3,
GROUP 6”.
2 Depress the “RUN/STOP” switch.
In case that the selected group is in operation, the group is stopped by depressing
“RUN/STOP” switch.
In case that the group is not in operation, the group is
started by depressing the “RUN/STOP” switch.
In case of group “AA”, depress the “RUN/STOP” switch, and;
- All indoor units are stopped (when more than 1 group is in operation
(Run lamp is ON)).
- All the groups are started operation (When all the groups are stopped
(Run lamp is OFF)).
Turned ON
The above gure shows the case
of “ZONE 3, GROUP 6”.
NOTE
• 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. In case of the simultaneous operation for all groups, select the group
number of “AA”.
5 Centralised remote controls
PSC-A64S
TCGB0106 rev.0 - 12/2014
386

Hitachi PSC-A1T Specifications

General

Brand	Hitachi
Model	PSC-A1T
Category	Controller
Language	English