15
KEY LOCK FUNCTION
This unit incorporates a key lock feature which can inhibit the tampering using the keys on the control
panel.
The key lock is set to OFF at the factory.
Display Mode
Function
L 0
Key lock OFF
Temperature change enabled
L 1
Key lock ON
Temperature change disabled
Table 2 Key lock setup procedure (Example: Key lock OFF
→
Key lock ON)
Operation
Key operated
Indication after operation
The current refrigerator or freezer
temperature is displayed.
1
Press and hold the digit shift
key for about 5 seconds.
The first digit of the temperature
display blinks.
2
Set the first digit to 1 with
the numerical value shift key.
Pressing the key shifts up the figure
of the digit.
3 Press the set key.
SET
Key lock is set to ON and the current
refrigerator or freezer temperature is
displayed.
Note:
Key lock can be set any time when the current refrigerator or freezer temperature is displayed.
DEFROSTING OF FREEZER
Table 3 below shows the procedure for defrosting of freezer or stopping the freezer operation.
Table 3
Operation
Key operated
Indication after operation
1
Select freezer (FREEZ.) by
pressing display select key.
REF.
FREEZ.
The current freezer temperature
is displayed.
2 Press the set key.
SET
The current set value is displayed
and the second digit of the tempera-
ture display flashes.
3
Set to -00 by using digit shift key
and numerical value shift key.
Pressing the key leads blink of the
first digit of the temperature display.
Pressing the key shifts up the figure
of the current digit.
4 Press the set key.
SET
The value is stored in memory and
the current freezer temperature and
dF are displayed alternately.
(starting of defrosting)
5 Check the defrosting is finished.
6
Set the freezer temperature by the
procedure 6 through 9 in Table 1
and start the freezer operation.
