| 摘要 |
PROBLEM TO BE SOLVED: To reduce detecting errors by correcting the determined amount of refrigerant. SOLUTION: This air conditioning system 1 performs refrigerant amount determining operation for determining the amount of refrigerant in a refrigerant circuit 10. It comprises a heat source unit 2, service units 3a-3c, expansion mechanisms V2, V9a-V9c, a first refrigerant gas pipe 52, a second refrigerant gas pipe 53, a refrigerant liquid pipe 51, change-over mechanisms 4a-4c, temperature detecting means T8, T12a-T12c, and a control part 8. The heat source unit has a compression means 21 for compressing refrigerant gas and a heat source side heat exchanger 22. The first refrigerant gas pipe is connected to the discharge side of the compression means. The change-over mechanisms are changeable over between a first condition and a second condition. The temperature detecting means are provided on the first refrigerant gas pipe for detecting the temperatures of refrigerant on the side of the first refrigerant gas pipe and outputting detected values for the temperatures of the refrigerant. The control part corrects the determined amount of the refrigerant determined in accordance with the detected values for the temperatures of the refrigerant by the refrigerant amount determining operation. COPYRIGHT: (C)2008,JPO&INPIT
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