| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operation performance during a partial load lighter than a predetermined load.SOLUTION: In a refrigerator of the present invention, a plurality of use-side heat exchangers (20) and (21) are connected in series. Furthermore, a plurality of refrigerant systems (80RR and 80RF) and (80LR and 80LF) each including a compressor (30) are connected to the respective use-side heat exchangers (20) and (21). A control circuit (61) exerts an efficiency control so that the compressor (30) operates with high efficiency in a partial load state at a time of a partial load lighter than a predetermined load. This control circuit (61) distributes the operating refrigerant systems (80RR) and (80LR) that are a part of all the refrigerant systems (80LF to 80RR) connected to the plurality of use-side heat exchangers (20 and 21) into the refrigerant system (80RR) connected to the use-side heat exchanger (20) and the refrigerant system (80LR) connected to the use-side heat exchanger (21).</p> |
