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NAME AND FUNCTION OF PARTS
Control panel and digital display indicator
15
Control panel
1. Power supply switch (POWER): Power all functions except remote alarm and back-up system for
AT/ATN type.
2. Back-up switch (BACK UP) (ATN type): Switch ON for operation of the back-up system and switch
OFF for stopping. Handle this switch according to page 14 "Back-up system".
3. Back-up test switch (TEST) (ATN type): Examine the functions of the back-up system. This switch
allows liquid CO
2
"Back-up system".
4. Remote alarm switch (REMOTE ALARM): This switch is for remote alarm. In case of operating
remote alarm, turn the switch to ON.
5. Buzzer key (BUZZER):
abnormality occur, the buzzer will sound automatically.
6. Alarm test key (ALARM): Check that the alarm lamp and the buzzer are functional when the freezer is
operating well.
7. Temperature setting key (PV/SV): This key has two functions.
PV; present freezer compartment temperature is displayed.
SV; setting temperature is displayed.
When the desired temperature is set, this key should be pressed (SV side). When no key is pressed
within 1 minute, displayed number won't be memorized, setting will be over and indicator will display the
present value.
8. Digit shift key (
using this key.
9. Figure shift key (
10. Entry key (ENT):
commence toward this new point.
11. Alarm lamp (ALARM): This lamp will flash when the unit is in alarm condition.
12. Filter check lamp (FILTER CHECK): This lamp lights when the condenser filter is clogged. Clean
the condenser filter according to page 16 "Cleaning of condenser filter".
13. Back-up lamp: This lamp will light when the back-up switch is ON. (This doesn't show the case
that back-up system is activated.)
14. Digital temperature indicator (TEMPERATURE
setting temperature (flash).
15. Temperature recorder (ATN type):
"Temperature recorder".
5
6
7
8
9
2
3
1
or liquid N
to spout under any circumstances.
2
To stop the alarm from sounding, press this key.
): The digital of the figure displayed for temperature adjustment can be shifted
): The figure that is displayed digitally can be changed by pressing this key.
When the desired temperature is reached, press this key.
This records the internal temperature.
10
11
12
13
Digital display indicator
4
Handle it according to page 14
O
C): This indicator shows the present temperature or
10
14
Should a further
Operation will
Refer to page 15
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