| 摘要 |
PROBLEM TO BE SOLVED: To satisfactorily level the oil surface of refrigerating machine oil contained in a plurality of compressors inexpensively and highly reliably. SOLUTION: In the air conditiones 10, a plurality of outdoor machines 11A, 11B, 11C are including a compressor 20 are connected in parallel with an indoor machine, and one refrigerant circuit includes a plurality of compressors, and further these compressors are communicated with each other through uniform oil pipes 30 which can transport residual oil in each compressor, discharge bypass valves 31, 32 or 33 and a capillary tube 36 are provided on a discharge piping 29 of the compressor of each outdoor machine, and bypass pipings 34A, 34B or 34C each to be connected with a pressure container of each compressor are branchedly provided.
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