Operation Procedure - Hitachi PSC-5S Installation And Operation Manual

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.
NOTE:
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 "GROUP" switch and select the group.
(Refer to item 2 of "A. Group Selection and Monitoring Unit
Operation Status" in page 16.)
2. Depress the "MODE" switch.
The operation mode is changed in the following order.
FAN COOL
NOTE:
- The above indications show the case of setting operation mode for group 4. The same setting
procedure shall be performed for other groups. In case of the same setting for all groups, select the
group number of "AA".
- 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.
Setting of Temperature, Fan Speed and Louver Angle
NOTE:
- Do not touch the "CHECK" switch. The "CHECK" switch is only for service use.
- When the "CHECK" switch is depressed by a mistake and the central station is changed to the check
mode, depress the "RESET" switch to cancel.
1. Depress the "GROUP" switch and select the group.
(Refer to item 2 of "A. Group Selection and Monitoring Unit
Operation Status" in page 11.)
<TEMPERATURE>
Set temperature by depressing "TEMP" switch.
∆
Depressing " " switch, the temperature is increased by 1 °C
(Maximum: 30 °C).
∇
Depressing " " switch, the temperature is decreased by 1 °C
(Minimum: 19 °C, for Cool, Dry and Fan mode, and 17 °C for Heat
∆
mode). When depressing
∇
or depressing for 3 seconds at the minimum temperature, the
temperature is not set and the indication of setting temperature is "--".
∆ ∇
In this case, depress or
returns to the minimum temperature or 30°C.The right figure shows the
case of setting 22 °C
NOTE:
The above shows the setting range for standard model. The setting range may be different according
to the connected unit model.

OPERATION PROCEDURE

HEAT DRY
for 3 seconds at set temperature at 30 °C,
, the indication of setting temperature
9
The above figure shows the case of
selecting group 4.
The above figure shows the case of
setting "HEAT" operation.
The above figure shows the case
of selecting group 4.
The above figure shows the
.
case of setting 22°C
/
17