| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning system providing an improved air conditioning feeling while actualizing continuous cooling operation in an allowable pressure range of a compressor. SOLUTION: The air conditioning system comprises a refrigerant circuit 3 having a compressor 5 for compressing refrigerant, an outdoor heat exchanger 7 for heat exchange with outdoor air fed via an outdoor fan 9, an expansion valve 11, and an indoor heat exchanger 13 for heat exchange with indoor air, an outdoor air temperature detector 27 for detecting an outdoor air temperature, an outdoor heat exchange temperature detector 29 for detecting high pressure associated with at least the discharge pressure of the compressor 5, and a low outdoor air cooling operation control means 31 for starting control operation when the outdoor air temperature is lower than a first predetermined temperature for a certain time. The low outdoor air cooling operation control means 31 consists of an outdoor fan control means 37 for reducing the rotating speed of the outdoor fan 9 when the high pressure is the first predetermined pressure or lower, and a compressor rotating speed control means 39 for increasing the lower-limit rotating speed of the compressor 5. COPYRIGHT: (C)2006,JPO&NCIPI |
