| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten time required for the defrosting operation of an evaporator 17. <P>SOLUTION: During defrosting operation, a discharge refrigerant from a compressor 14 flows in a high temperature state into an accumulator 18, and a liquid refrigerant in the accumulator 18 can be made high in temperature compared with a normal operation time. The liquid refrigerant thereby flows into the evaporator 17 via an auxiliary pressure reducer 31 to defrost the evaporator 17. Only when an outside air temperature is higher than a predetermined temperature T2 (Yes in step S30), an electric outdoor fan 17a is operated (step S40), and outside air blasted from the electric outdoor fan 17a can absorb heat from the evaporator 17. Consequently, outside air assists in defrosting the evaporator 17. <P>COPYRIGHT: (C)2008,JPO&INPIT |
