| 摘要 |
PROBLEM TO BE SOLVED: To provide a coolant leakage detecting method and a refrigerating cycle device facilitating attachment of a sensor, and capable of carrying out accurate coolant leakage detection in regard to a refrigerating cycle device. SOLUTION: A step is provided for calculating a coolant amount in a liquid pool from a coolant liquid level position in the liquid pool of a refrigerating cycle circulating a coolant by connecting a compressor, a condenser, the liquid pool, an expanding means, and an evaporator by a piping. A step is provided for judging if there is coolant leakage by comparing a coolant amount associated with a condensation temperature and an evaporation temperature of the refrigerating cycle during normal operation, and the newly calculated coolant amount. A step is provided for discriminating whether it is within a certain time after compressor activation when calculating the coolant amount in the liquid pool. If it is discriminated that the certain time has passed after the compressor activation, the coolant amount is calculated by the coolant liquid level position to judge if there is coolant leakage. COPYRIGHT: (C)2008,JPO&INPIT |
