| 摘要 |
PURPOSE:To keep the function of compressors and the high ability of a freezing cycle by controlling the operational frequency of compressors by a inverter device to constitute the compressors into a capacity variable structure and detecting the discharge pressure of the freezing cycle by means of a pressure sensor thereby to perform the operation control. CONSTITUTION:The air conditioner is provided with a freezing cycle 12 for circulating a coolant in an outdoor unit 10 and an indoor unit 11. Compressors 13a and 13b are driven by being controlled in the operational frequency, and are constituted in a capacity variable structure. A pressure sensor 28 is provided on the discharge side of each of the compressors 13a and 13b, for example, on the downstream side of the joined part of a discharge pipe. The coolant discharge pressure is detected by the pressures sensor 28, and the detected pressure is sent to a controller 26 or a blower controlling controller. Thus, the operational control of an outdoor blower 29 is preformed by the controller 26. Therefore, the air flow rate adjustment of an outdoor blower 29 is carried out in an optimum manner in accordance with the capacity variable operation of the compressors Thus, it is possible to maintain the function of the compressor and to keep the high capacity of the freezing cycle. |
