| 摘要 |
PURPOSE:To contrive to operate the compressor related to the utilizing coil side under efficient condition by a method wherein a compressor mechanism is divided into two systems, the intaking side of one side system is connected to a gas pipe side and the intaking side of the other side system is connected to an indoor unit. CONSTITUTION:A compressor mechanism 1 is provided in parallel with two compressors 1A, 1B of which each discharging side is connected collectively to the high pressure side port of an open/close valve 3D, and the intaking side of the one side compressor 1A is connected to the intake side port of an open/ close valve 3S. An open/close valve 16 is interposed at intermediate position between the compressor 1A and 1B. In above structure, a heat source side soil 2 is acted as an evaporator, further, the open/close valve 3S is opened and the open/close valve 3D is closed according to the requirement for an operational control. In case that the heat source side coil 2 is acted as the evaporator, the open/close valve 16 is closed, then the coolant sucking from the heat source side coil 2 and the coolant sucking from the utilizing side coil 9 are respectively performed partially by the compressor 1A and the compressor 1B.
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