| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce errors in detection by controlling the degree of supercooling and a corresponding value based on the degree of supercooling as indexes to such values that allow easy determination of the adequacy of a refrigerant amount. <P>SOLUTION: This refrigerant amount determining method of the air conditioning device 1 determines at least one of an initial frequency of a compressor, an initial degree of superheating of a refrigerant, and an initial fan rotational number of a heat source side blower according to the outdoor temperature at the time as an initial target value from a map, detects an operation state amount that fluctuates according to the degree of supercooling of the refrigerant at an outlet of the heat source side heat exchanger or the fluctuation of the degree of supercooling while performing cooling operation and controlling at least one of the compressor, an expansion mechanism, and a user side blower to achieve the initial target value, creates a stable state where the degree of supercooling is a first prescribed value or more, or the operating state amount is a second prescribed value or more, and stores the frequency of the compressor, the degree of superheating, and the degree of supercooling of the refrigerant in the stable state. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
