Abstract: A flow-type ice manufacturing machine includes substantially vertical ice making panels and equipped with a cooling pipe secured on the back of the ice making panels for cooling circulating water that flows on the ice making surfaces. The ice manufacturing machine comprises an ice storage chamber for storing ice, the chamber having a front door, a machinery room for accommodating a condensation unit, the machinery room mounted on the upper front end of the ice storage chamber, and an ice making portion mounted behind the machinery room, so that the ice produced drops into the ice storage chamber and heaps deeply in the chamber, thereby preventing the ice from spilling from the door when it is opened or forcing the door to open unexpectedly.

Abstract: An ice making apparatus includes a refrigeration means having ice making chambers and repeats ice making cycles that involve refrigeration processes to freeze water supplied in the ice making chambers and ice releasing processes to release the ice. These processes are controlled by means of sensors which measure thermal conditions of the apparatus such as condensation temperature and condensation pressure of a refrigerant, and the temperature of the refrigeration means. The control system stores and updates the times required for refrigeration process and ice releasing process under normal sensor conditions and, based on these data, permits the apparatus to make ice even under sensor malfunction that occurred during an ice making cycle.