| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability and stability and simplify a construction by calculating the decided value of the temperature of an outdoor air conditioner for starting a defrosting operation depending on the kind of a refrigerant sealed in a refrigerating cycle and starting the defrosting operation based on the decided value. SOLUTION: The type of a refrigerant is inputted and set by a refrigerant type setting device 38, a decided value for deciding to start a defrosting operation depending on the type of the refrigerant is calculated by a calculator 39 and the defrosting operation is started based the decided value. As the refrigerant type setting device 38, a dip switch or a dial switch to be set by a service man or a remote controller or the like which can be changed by a user are exemplified. As described above, the type of the refrigerant is decided and the decided value of the liquid side temperature of an outdoor heat exchanger 5 is changed so that the defrosting can be performed in an optimum manner. Further, the sealed refrigerant is decided and the decided value is changed to a proper value, so that one kind of product can meet various kinds of refrigerants. |
