COOLING APPARATUS AND CONTROLLING METHOD THEREOF

摘要

The present invention relates to a refrigerator including: a carbonated water tank to store carbonated water; a water tank to store purified water; a carbon dioxide cylinder to store carbon dioxide; and a control unit to supply purified water to the carbonated water tank manufacturing the carbonated water by supplying the carbon dioxide to the carbonated water tank when the supply of purified water is finished. The control unit calculates an accumulated discharge time after the manufacture of the carbonated water based on the time in which the carbonated water is discharged, and re-supplying the carbon dioxide to the carbonated water tank when the accumulated discharge time of the carbonated water is above a predetermined first standard time. Therefore, the refrigerator is capable of selectively perform intake of purified water and carbonated water, and discharge carbonated water at a predetermined pressure by periodically supplying carbon dioxide to the carbonated water tank to store the carbonated water.