| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning device capable of contriving the oil balance among each outdoor unit even in the case when a compressor has a low-pressure container. SOLUTION: In an air conditioning device in which a plurality of outdoor units are connected with a plurality of indoor units by the same system of refrigerant piping, a plurality of the outdoor units 1 are provided with a compressor 11 having a low-pressure container 100, a pressurizing line 103 guiding the delivery pressure of this compressor into its own low-pressure container and an oil discharging line 107 discharging the oil inside the low-pressure container pressurized by this pressurizing line, and each oil discharging line 107 is connected with a balancing pipe 109 through a bypass valve 105. This device is provided with a controlling means successively giving and receiving the oil inside the low-pressure container 100 among each outdoor unit 1 in the one- to-one relationship through this balancing pipe 109 to balance the quantity of oil among all outdoor units 1. |
