| 摘要 |
PURPOSE:To control evaporation capacity, condensation capacity in response to an operating state of an indoor unit with low-cost specifications and to obtain a high reliability of a, compressor and a stable operating state of a system in a control of an outdoor heat exchanger. CONSTITUTION:A first path of a four-way valve 3 is connected to a discharge side of a compressor 2, a second path of the valve 3 is connected to a suction side of the compressor 2, a third path of the valve 3 is connected to a gas tube 16 through a first outdoor side two-way valve 21, and one of a first outdoor side heat exchanger 4 is connected to a fourth path of the valve 3 through a second outdoor side two-way valve 22. Further, it is connected to the third path of the valve 3 through a third outdoor side two-way valve 23, and one of a second outdoor side heat exchanger 5 is connected to the fourth path of the valve 3, and connected to a gas tube 16 through a fourth outdoor side two-way valve 24. |
