Question

Why does ice not deposit in the freezer equipped with defrosting technique. explain

Answer 1

the mechanism of refrigerator involves heating the cooling element for the short period melting and Frost that has formed up on it and having drain through a collecting duct at the back of the unit the cycle is controlled by electric or electronic of the timer for every 6 to 12 hours of compressor operation it Run a defrost heater element for about 15 to a half hour the defrost heater having the typical power rating of 350 w to 600 w is mounted just below the evaporator coil and is protected from short circuits with fusible link older refrigerators run the timer continuously but to activate the deforest heater less often and thereby save energy contemporary designs run the timer only when the compressor motor. Run so if the refrigerator door is left closed the compressor and heating element will run less often the deforest heater circuit also includes a deforest thermostat that senses when the cooling element temperature has risen two 40? F or warmer inter putting the current flow in the element and preventing excessive heating of the freezer compartment the deforest timer is designed to run the compressor motor aur the deforest heater but not both at once inside the freezer dry air is circulated around the cabinet using one or more fans in a typical design the cold air from the freezer compartment is ducted to the Fresh Food compartment and circulated back into the freezer compartment air circulation helps sublimate any ice that may form on frozen items in the freezer compartment of the traditional cooling elements assembled with in the freezer liner auto deforest element are compact and separated from the main cabinet space allowing them to be heated for short period to dispose of any ice that has formed