| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner mounting therein a heat exchanger for smoothly draining dew condensation water.SOLUTION: An air conditioner comprises a refrigeration cycle 27 in which a compressor 9, an outdoor heat exchanger 12, an expansion valve 16, and an indoor heat exchanger 17 are pipe-connected in series, and in which a refrigerant circulates. The outdoor heat exchanger 12 includes: fins 21 that have a plurality of vertical heat transfer pipe insertion holes 21a, and that are arranged in parallel; and heat transfer pipes 18 inserted into the respective heat transfer pipe insertion holes 21a. A hydrophilic treatment is performed on upper portions of the fines 21 and a water repellent treatment is performed on lower portions thereof. It is a lowest heat transfer pipe 18a that acts as an inlet of a refrigerant discharged from the compressor 9 to the outdoor heat exchanger 12 during a defrosting operation. |
