OHM ELECTRIC COOL CABI OCA-S2300AC, Instruction Manual, Page: 31 / 44

9
3-3 Overcurrent protection
Caution
Do not forget to fit an earth leakage breaker.
→
Failure to this may lead to tripping of the earth-leakage breaker for the
enclosure in the event of electric leakage.
Selection of a breaker should be made so as to fit the type of the cooler.
a. With the input of power supply, or with the start of cooling operation,
COOLCABI is subject to starting current for approx. 1 second. Therefore,
the selection of an earth leakage breaker should be made so as to assure
stable operation without affected by such current as well as providing
effective protection against possible overcurrent thereafter.
b. For earth leakage breakers, use a reference value of 30mA
for sensitivity rating as a guide of selection.
4. Operation
4-1 Caution
Caution
For protection of compressor, wait at least 30 minutes after installation of the unit
and then turn on power to start operation.
Frequent switching on and off of a compressor may be a cause of trouble and
shorten its lifetime. Never repeat ON/OFF more than 5 times within an hour.
Turn up the differential value of the parameter setting (see Article 4 to 5) if
frequent on-off occurs.
Never put your fingers into the unit or uncover the unit during operation.
Failure to this may be a cause of injury.
Never operate COOLCABI leaving the control panel door open.
Failure to this may lead to excessive condensation and drainage volume as well as
creating the possibility to allow condensate to enter into the control panel interior.
4-2 Operation panel
4-3 How to change the setting temperature
Caution
Setting temperature should be basically at 35
℃
.Avoid setting at
an unnecessarily low value which may cause excessive condensation or drainage.
(1) Turn on the unit. The current internal temperature will be indicated on the display.
(2) Push the SET button. The current setting temperature will be flashed.
(3) Change the setting temperature by UP and DOWN buttons within the range
from 30
℃
to 45
℃
.
(4) Push the SET button. The setting temperature has now been changed and the
unit restarts operation.
4-4 Compulsory cooling operation (For inspection purposes)
Press UP and DOWN buttons at the same time for 3 seconds or more.
The operation lamp will light and the unit will start compulsory cooling operation. After a
laps of the time set by parameter, the unit will return to normal operation mode.
Note: Factory setting for compulsory operation is 30 seconds.
Earth leakage
breaker
(For exclusive
use of cooler)
COOL
CABI
Operation lamp (Green)
Lighting
：
Operating
Lights off
：
Cooling operation is suspended
Blinking
：
Compulsory operation is executed
UP button
DOWN button
SET button
Display (Internal temp. indicated when power is on)
Alarm lamp (Red)
Set
Down
Up
RUN
ALARM