| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning apparatus in which a piping structure is simplified and the manufacturing cost of a solenoid valve kit is reduced. 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 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 optionally branched and connected to a discharge tube 7 and a suction tube 8, and the inter-unit piping includes a high pressure gas tube 11 connected with the discharge tube, a low pressure gas tube 12 connected with the suction tube, and a liquid tube 13 connected with the other end of the outdoor heat exchanger with one end of the indoor heat exchanger and with the other end connected with a liquid tube. In the air conditioning apparatus, reverse pressure happening prevention means 100 is connected such that reverse pressure is not applied to opening/closing valves 16a, 16b, 16c, to a high pressure gas tube 11 located on the side of the outdoor unit 1 from a cross point A of a gas branch tube 14a of an indoor unit 5a connected to a nearest portion of the outdoor unit and the high pressure gas tube 11. |
