35
SAFETY FUNCTIONS
This unit has the safety functions shown below. Even if under the safety operation, there is no blink of
display or indicator and no alarm buzzer operation.
Safety Situation
Safety
operation
Over-heat protection
(refrigerator only)
The refrigerator temperature is
higher than about 28
o
C.
The defrost heater is off to avoid the
temperature rise.
Over-cool protection
(refrigerator only)
The refrigerator temperature is
lower than about 0
o
C.
The compressor for refrigerator is off to
avoid the temperature descent.
Auto-return
There is no key pressing for 90
seconds in the setting mode.
The setting mode is returned to the
temperature display mode.
Key lock
The key lock is ON (L1).
The change of temperature setting is
disable.
