| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning apparatus in which the so-called gas deficiency is prevented. SOLUTION: An air conditioning apparatus 30 is adapted such that an outdoor unit 1 equipped with a compressor 2 and an outdoor heat exchanger 3, and an indoor units 5a, 5b, and 5c equipped with indoor heat exchangers 6a, 6b, and 6c are connected with each other through an inter-unit piping 10, and one end of the outdoor heat exchanger is branched and connected with a discharge tube 7 and a suction tube 8 of a compressor, and the inter-unit piping includes a high pressure gas tube 11 connected to the discharge tube, a low pressure gas tube 12 connected to the suction tube, and a liquid tube 13 connected to the other end of the outdoor heat exchanger with one end of the indoor heat exchanger connected to the high pressure gas tube and the low pressure gas tube and with the other end of the same connected to the liquid tube. In the air conditioning apparatus 30 upon heating operation of all the indoor units refrigerant inflow prevention means 100 is connected to the low pressure gas tube 12 such that a refrigerant flows from the outdoor unit 1 to the indoor unit 5 through the low pressure gas tube 12 in a rest state. |
