Control system for ice making apparatuses

Details Control system for ice making apparatuses Control system for ice making apparatuses

1991-03-08

1992-02-25

Wayner, William E.

Refrigeration

Automatic control

By congealed removable product condition

62233, F25C 100

Patent

active

050902105

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. The control system of the invention also permits the apparatus to start ice making cycles under sensor malfunction that has occurred prior to the start up of the apparatus by storing a set of standard reference time data needed to the start up, thereby allowing the apparatus to provide ice irrespective of sensor conditions.

REFERENCES:
patent: 3850005 (1974-11-01), Sayles
patent: 3977851 (1976-08-01), Toya
patent: 4665710 (1987-05-01), Kyzer et al.

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