| 摘要 |
<p>In a refrigeration apparatus having a plurality of compressors, which are connected in parallel and are operated, in an outdoor unit, a compressor (inverter compressor) is started surely after the stoppage of operation. In the refrigeration apparatus in which the outdoor unit 100 includes two compressors of a first compressor 110 and a second compressor 120, which are connected in parallel with each other; an oil separator 111, 121 is provided on the discharge side of each of the compressors; a first oil separator 111 on the first compressor side is connected to a suction pipe 164 of the second compressor via first oil return piping 114 including a pressure reducing means 115, and a second oil separator 121 on the second compressor side is connected to a suction pipe 163 of the first compressor via second oil return piping 124 including a pressure reducing means 125; and the first compressor is an inverter compressor, and the second compressor is a constant-speed compressor, a solenoid valve 116 is connected in parallel with the pressure reducing means 115 of the first oil return piping 114, and before the restart of the first compressor (inverter compressor) 110, the solenoid valve 116 is turned on to cause the discharge side and the suction side to be approximately equalized.</p> |
