13
OPERATING INSTRUCTIONS
Control panel
(Model MDF-U2086S)
1. Buzzer key (BUZZER):
To stop the alarm from sounding, press this key. Should a further
abnormality occur, the buzzer will sound automatically.
2. Alarm test key (ALARM TEST):
Check that the alarm lamp and the buzzer functional when the
freezer is operating well.
3. Record key (RECORD):
For a digital temperature recorder.
4. Set key (SET):
Temperature setting mode will be led by pressing this key. The changeable will
be flashed. Press this key again after setting desired temperature, and temperature setting will be
stored.
5. Digit shift key ( ):
Pressing this key in the setting mode will cause the changeable digit to move.
Key lock will be caused by pressing this key when in the temperature display mode. As for details,
see page 15 “Key lock function”.
6. Figure shift key ( ):
Pressing this key in the setting mode will cause the numerical value to shift.
“ON-OFF” of key lock can be selected by pressing this key when in the key lock mode.
7. Digital temperature indicator (Temperature (
℃
)):
This indicator shows the present temperature
or setting temperature.
8. Filter check lamp (FILTER):
This lamp lights when the condenser filter is clogged. Clean the
condenser filter according to page 20 “Cleaning the condenser filter”.
9. Alarm lamp (ALARM):
This lamp will be flashed when the internal temperature will exceed the
alarm setting temperature, or at the time of power failure.
10. Door alarm lamp (DOOR):
This indicator flashes up when the door is open, allowing confirmation
of whether or not the door is completely closed.
FILTER
ALARM
BUZZER
ALARM
TEST
SET
DOOR
BACK UP
RECORD
TEMPERATURE (
o
C)
7
1
2
3
4
5
6
10
9
8
