| 摘要 |
<P>PROBLEM TO BE SOLVED: To maintain the temperature of a radiation heat exchanger at a high temperature during a heating operation in which both warm-air heating and radiation heating are carried out. <P>SOLUTION: An air conditioner is provided with a refrigerant circuit having a compressor, an indoor heat exchanger, a radiation heat exchanger, a pressure reduction mechanism, and an outdoor heat exchanger. The indoor heat exchanger is disposed inside an indoor unit in such a manner as to face an indoor fan, and the radiation heat exchanger is disposed on the outer surface of the indoor unit. The air conditioner has a control means for increasing and decreasing the frequency of the compressor on the basis of the temperature difference between an indoor target temperature and the indoor temperature. In addition, the air conditioner is capable of: a warm-air heating operation in which a refrigerant is flushed through the indoor heat exchanger, without flushing the refrigerant through a radiation panel, to carry out warm-air heating; and a radiation heating operation in which the refrigerant is flushed through the indoor heat exchanger to carry out warm-air heating, and the refrigerant is flushed through the radiation panel to carry out radiation heating. The control means is characterized in that, during the warm-air heating operation and the radiation heating operation, the frequency of the compressor is increased or decreased at mutually different timings. <P>COPYRIGHT: (C)2012,JPO&INPIT |
