| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat pump air conditioner of high cooling performance by effectively utilizing a heat storage tank used in defrosting, even in a cooling operation.SOLUTION: A heat pump air conditioner is composed of a heat storage tank 10 incorporating a storage heat exchanger 11 exchanging heat between a heat storage material 12 storing heat generated in a compressor 1 and a refrigerant in defrosting, a drain flow channel 15 for guiding the dehumidification water discharged from an indoor heat exchanger 5 in a cooling operation, to the heat storage tank 10, and a drain heat exchanger 16 exchanging heat between the dehumidification water from the drain flow channel and the heat storage material. Cooling performance can be improved by lowering a temperature of the compressor by cooling the heat stored in the heat storage material by utilizing the dehumidification water in the cooling operation.</p> |
