| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve a heat exchanging efficiency of a heat exchanger of an outdoor unit by arranging a drain output passage for outputting drain from an indoor unit along a heat exchanging means and scatterably providing the output drain by the exchanging means. SOLUTION: First, refrigerant compressed by a compressor of an outdoor unit 20 is cooled by a heat exchanger 22, and sent to an indoor unit 30 via connecting refrigerant piping 40. Then, the refrigerant from the unit 20 is pressure reduced by a pressure reducing unit in the unit 30, heat exchanged by an evaporator, and then again sent to the unit 20 via the piping 40. At this time, when the refrigerant is heat exchanged by the evaporator, drain is generated via the evaporator, and led to drip to the exchanger 22 via the piping 40 and a drain output passage 24. Accordingly, the refrigerant of the exchanger 22 is cooled by a wind from the blower and a heat of vaporization of the drain dripping from the passage 24. Thus, the heat exchanging efficiency of the exchanger can be improved.</p> |
