| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving indoor comfort by surely preventing the freezing of water flowing in a heat source-side heat exchanger while increasing a use range of the water flowing in the heat source-side heat exchanger. <P>SOLUTION: The air conditioner 50 includes a refrigerating cycle and a control device 20, and capable of performing a heating operation and a cooling operation. The refrigerating cycle includes a bypass circuit 6 communicating with a liquid pipe 14 at a liquid connection pipe side of a heat source-side electric expansion valve 5, and a low-pressure pipe 11 at a suction side of a liquid receiver 9. The bypass circuit 6 includes a bypass electric expansion valve 8. The control device 20 opens the bypass electric expansion valve 8 at starting a compressor in the heating operation, so that the pressure of the low-pressure pipe 11 is increased in comparison with the case that the bypass electric expansion valve 8 is not opened, and a temperature of a refrigerant flowing in the heat source-side heat exchanger 4 is controlled to be raised. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
