| 摘要 |
<p>PROBLEM TO BE SOLVED: To cool a freeze chamber or a cold storage chamber to low temperatures by using one evaporator by a method wherein a cooled chamber and a freeze chamber, separator and partitioned off, are cooled to low temperatures each independent of the other by an evaporator and, while the inside of the evaporator is in a state of transient pressure, the cold storage chamber is cooled by the control of the cooling cycle. SOLUTION: It is judged whether a cooled chamber 2 or a cold storage chamber 2a requires the cooling of operation and, when either the freeze chamber 2 or the cold storage chamber 2a requires the cooling, the refrigerating cycle of operation is started. Then after judging whether transient pressure inside an evaporator 11 is allowable or not, while the inside of the evaporator 11 is in a state of transient pressure, the cold storage chamber 2a is cooled by the control of the refrigerating cycle. When the inside of the evaporator 11 has been cleared of the transient pressure, either the freeze chamber 2 or the cold storage chamber 2a that requires freeze is cooled with precedence over the other by the control of the refrigerating cycle. This method enables cooling a freeze chamber 2 or a cold storage chamber 2a to low temperatures by using one evaporator 11.</p> |
