Electrolux 180 Welder User Manual


 
After turning on air-o-defrost
To defrost frozen products you simply place them into the perforated
containers, make a small hole in the product using the supplied “hand drill”
insert the core temperature probe, close the door, set target temperature and
leave the rest to air-o-defrost.
The thawing process involves the sensor in the probe monitoring the
product temperature, when it registers a big difference between the cabinet
temperature and core temperature the thawing process is activated.
The temperature inside the cabinet will increase via the steam generator in
steps up to +15 °C. first +7, then +10, +12 and finally +15 °C where it will
stabilise.
During the thawing mode the internal fan is on high speed with a constant
input of steam, which as it comes into contact with the frozen food
condensates back to water thus ensuring the food surface is always
very moist.
Note that the surface temperature of the food never exceeds +5 °C, this is
due to the physics of the reaction of the coldness coming from within the food
mass and passing through the foods surface. The opposite happens when
cooking food in that the temperature from the cooking appliance is penetrating
through the surface into the food mass.
Once the temperature of the food has reached 3 °C from your target
temperature then the refrigeration cycle will start and pull down the cabinet
temperature to +7 °C and stay at this temperature until the target temperature
has been reached and stabilised for 5 minutes.
The air-o-defrost cabinet will now pull down to +3 °C, the steam input will stop
and the fan speed reduce to a gentle air flow.
At approx. 40 minutes intervals the steam will input for a few seconds, this is
to keep the food product in a very moist environment.
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