Super cool/super freezing button
In the non-locking state, press and hold the super-cool /super-freezer button for 3 seconds to enter the
locked state and the lock buzzer will sound.
In the locked state, press and hold the super-cool /super-freezer button for 3 seconds to enter the unlocked
state and the unlocking buzzer will sound.
After 30 seconds of no button operation, it will automatically enter the locked state, and the external display board
with a music buzzer will sound the lock buzzer at the same time.
The alarm sound release operation can be carried out in the locked state, and all other key operations must be
carried out in the unlocked state.
If the operation is in the locked state, an error buzzer will be displayed.