| 摘要 |
PROBLEM TO BE SOLVED: To improve the evaporating function of a condenser in a heating operation for meeting low temperature in the winter season and a cold place so as to realize a comfortable heating, by avoiding the deterioration of a heating capacity resulting from the deterioration of the function of the condenser due to the fall of atmospheric air temperature, or the stop of the heating operation resulting from the adherence of frost to the condenser when the heating operation is carried out with an air conditioner. SOLUTION: A heat generating member for heating the condenser is provided in a refrigerant passage or inside/outside of the condenser. In a cooling operation, a refrigerant does not pass the refrigerant passage in which the heat generating member is provided, or the heat generating member is not used. A second-stage condenser is provided in the upstream of the condenser (first-stage condenser). The second-stage condenser and the first-stage condenser are arranged in parallel in the direction where a heat exchanging material passes, and arranged in such a manner that the heat exchanging material firstly passes the second-stage condenser and then passes the first-stage condenser. Heat taken by the heat exchanging material during a process in which the heat exchanging material passes the second-stage condenser is effectively transferred to the first-stage condenser. |
