NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
9/20
5. OPERATION
5.1 NORMAL
When the thermostat knob is on (OFF) position it means that:
the compressor is off;
all
Leds
are
off;
the electronic board is powered ( 220-240V 50Hz ! ! ! ).
Warning: the electronic board is powered with a 220-240V 50Hz voltage even if the thermostat
knob is on (OFF) position. Therefore, disconnect the appliance from the electric power before
operating with the electronic board.
Rotating clockwise the thermostat knob the regulation is in a range of -16 °C and -24 °C and the green ON/OFF
led lights.
In NOFROST freezers, the humidity inside the freezer compartment accumulates on the evaporator battery
thanks to the air circulation, thus preventing the formation of frost on food.
During normal operation time the electronic board powers the compressor
(3)
and the fan
(24)
circuits.
The operation time which corresponds to the interval between the following defrosting lasts about 19 hours with
normal opening of the door ( it can last up to 72 hours if the door is never opened ! ).
The arrows in the picture indicate the current path.
