Patent ID: 8490421
Filing Date: 2013-07-23
Classification: F25B,F25D,Y02B

Abstract:
1. A method of controlling a refrigerator comprising a main body partitioned into a refrigerating chamber and a freezing chamber, a refrigerating chamber evaporator disposed in the refrigerating chamber, a freezing chamber evaporator disposed in the freezing chamber, a compressor that supplies refrigerant to the refrigerating chamber evaporator and the freezing chamber evaporator, and a 3-way valve that controls the refrigerant introduced from the compressor to the freezing chamber evaporator and the refrigerating chamber evaporator, the method comprising: checking temperatures of the refrigerating chamber and the freezing chamber, and operating the refrigerating chamber and the freezing chamber simultaneously; after operating the refrigerating chamber and the freezing chamber simultaneously, cooling the refrigerating chamber; after the cooling the refrigerating chamber, cooling the freezing chamber; and after the cooling the freezing chamber, recovering refrigerant from at least one of the refrigerating chamber evaporator or the freezing chamber evaporator.