| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of performing optimum air-conditioning control and suppressing loss of power consumption or the like appropriately by carrying out appropriate condition determination of required cooling capacity in the air conditioner having a refrigerating system equipped with two compression mechanisms of fixed displacement and variable displacement types. SOLUTION: The air conditioner having the fixed displacement type first compression mechanism and the variable displacement type second compression mechanism independent of each other in the refrigerating cycle is provided with a second compression mechanism displacement control means, a compression mechanism operation switching control means, a refrigerant evaporator, a condenser, a blower for blowing air to the evaporator, an evaporator temperature detecting means, and an evaporator target temperature computing means. When the refrigerating cycle is operated only by the first compression mechanism, the detected temperature Teva by the evaporator temperature detecting means, the computed temperature Toff by the evaporator target temperature computing means, and a predetermined value A are referred to, and when Teva-Toff≥A is satisfied, both compression mechanisms are simultaneously operated. COPYRIGHT: (C)2005,JPO&NCIPI |
