Patent ID: 7194868
Filing Date: 2007-03-27
Classification: F25B,F25C

Abstract:
1. A multiple ice making decision method for an automatic ice making machine, which alternately repeats an ice making step of cooling an ice making section where an evaporator constituting a refrigeration system by circulatively supplying a refrigerant to said evaporator, and producing lumps of ice by circulatively supplying ice making water, retained in an ice-making-water tank, to said ice making section, and a deicing step of separating said lumps of ice produced at said ice making section; and in which a first control unit for switching the ice making step to the deicing step when a float switch installed inside the ice-making-water tank detects that a water level in the ice-making-water tank drops to a defined water level is provided, said method being characterized in that the first control unit is provided with a first multiple ice making detection timer which is set to start a counting operation at a same time as the ice making step starts; and during the ice making step, when the float switch detects the defined water level before the first multiple ice making detection timer counts up a normal ice making time, the first control unit counts considering the ice making step as short ice making, and said first control unit is set in such a way that when said first control unit detects, a predetermined number of times, consecutive occurrence of the ice making step of short ice making, said first control unit decides that multiple ice making has occurred.