Hitachi R-V550PD Instruction Manual page 7

Touch the button
for start Quick Freezing
operation, lamp light
is on.
Touch the button
for start Energy Saving
operation, until lamp light
is on.
Touch the button
for 5 seconds
("Lock" light is on)
Touching
Touch the button again
for stop Quick Freezing
operation, until lamp light
is off.
There is not sound when
touching any button
(disactive door alarm sound).
Touch the button again
for stop Energy Saving
operation, until lamp light
is off.
To stop this function,
t ouch the button
for 5 seconds again
("Lock" light is off)
Touching
Touching