| 摘要 |
PROBLEM TO BE SOLVED: To correctly measure a refrigerant filling amount without depending on the amount of refrigerant accumulated in a gas-liquid separator, in a refrigerating device comprising a refrigerant circuit having the gas-liquid separator, and capable of measuring the filling amount of refrigerant circulated in the refrigerant circuit. SOLUTION: This refrigerant circuit 15 is provided with liquid level detecting circuits 60, 70 detecting the amount of refrigerant accumulated in the gas-liquid separator 33. In an operation for measuring the refrigerant filling amount while circulating the refrigerant in the refrigerant circuit 15, the refrigerant filling amount in the refrigerant circuit 15 as a whole is measured while considering the refrigerant amount in the gas-liquid separator 33 detected by the liquid level detecting circuits 60, 70. COPYRIGHT: (C)2007,JPO&INPIT
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