| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerant circulation apparatus capable of compensating a capacity by increasing a cooling capacity even when at least one of a plurality of blowers for distributing the air to an evaporator, fails, and the cooling capacity is lowered due to decrease of air volume. <P>SOLUTION: This refrigerant circulation apparatus includes a condenser-side refrigerant temperature control device 7 for controlling a temperature of a refrigerant supplied to a condenser 3. The condenser-side refrigerant temperature control device 7 controls an opening of a heat medium flow rate control valve 23 disposed on a heat medium pipe 25 so that a measurement value of a condenser refrigerant liquid temperature sensor 8 disposed on a refrigerant liquid pipe 4 of an outlet of the condenser 3 reaches a set temperature of a condenser-side external input temperature. Further, the condenser-side refrigerant temperature control device 7 lowers the set temperature of the condenser-side external input temperature, when a failure signal is input from a blower failure detecting unit 6, and controls the opening of the heat medium flow rate control valve 23 so that the measurement value of the condenser refrigerant liquid temperature sensor 8 reaches the set temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
