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12
FREEZER COMPONENTS
Control panel
1. Power switch (POWER): Power all functions except remote alarm and back-up system for AT type.
2. CO
2
Back-up switch (CO
2
BACK UP): AT type only.
3. CO
2
Back-up test switch (TEST) (AT types only): AT type only.
4. Remote alarm switch (REMOTE ALARM): This switch is for remote alarm. In case of operating
remote alarm, turn the switch to “ON”.
5. Mode setting key. (PV/SV): This key has functions.
PV: Present freezer compartment temperature is displayed.
SV: Setting temperature is displayed. When the desired temperature is set, this key should be
passed (SV side). The temperature setting can be done by using (6),(7),(8), keys, initial setting
temperature is -85
o
C.
6. Digit shift key ( ): The digital of the figure displayed for temperature adjustment can be shifted
using this key.
7. Numerical value shift key ( ): The figure that is displayed digitally can be changed by pressing
this key.
8. Enter key (ENT): When the desired temperature is reached, press this key. Operation will
commence toward this new point.
9. Alarm test key (ALARM): Check that the alarm lamp and the buzzer are functional when the
deep-freezer is operating well.
10. Buzzer key (BUZZER): To stop the alarm from sounding, press this key. Should a further
abnormality occur, the buzzer will sound automatically.
11. Alarm lamp (ALARM) and buzzer: they operate in the following cases:
a) Break down or power failure at the power supply.
- Alarm lamp flickering, buzzer sounds.
b) Temperature rises about 10
o
C higher than the setting temperature.
- Alarm lamp flickering, buzzer sounds about 15 minutes later.
12. Filter check lamp (FILTER CHECK): This lamp lights when the condenser filter is clogged.
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