| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-air conditioner capable of preventing shortage of an oil level of a compressor in defrosting operation. SOLUTION: This multi-air conditioner has an outdoor machine unit 10 having the compressor 11 compressing a refrigerant, and a plurality of indoor machine units 20 having an indoor heat exchanger 21, and outputs a control command for controlling output of the compressor 11 of the outdoor machine unit 10 from the respective indoor machine units 20, and has a control part for performing the defrosting operation for heating an outdoor heat exchanger 13 provided in the outdoor machine unit 10. The control part performs refrigerant recovery operation for recovering the refrigerant gathered in the outdoor heat exchanger 13 provided in an outdoor machine to the compressor 11 when starting the defrosting operation. COPYRIGHT: (C)2008,JPO&INPIT
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