| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an operation control method of a multiple chamber air conditioner capable of effectively recovering oil to an intake side and being appropriately operated without becoming short in capacity. <P>SOLUTION: In this multiple chamber air conditioner, main and sub oil separators 3a, 3b are disposed between a discharge pipe 1a of a compressor 1 and a four-way valve 2, the sub oil separator 3b is connected by an electromagnetic two-way valve 4 and a check valve 5, the main and sub oil separators 3a, 3b are connected to an intake pipe 1b of the compressor 1 via a capillary tube 6, discharge gas is made to flow in the main and sub oil separators 3a, 3b by opening the electromagnetic two-way valve 4 during start control of the compressor 1, and when the compressor discharge temperature exceeds a prescribed set value, the electromagnetic two-way valve 4 is closed and the discharge gas is made to flow into only the main oil separator 3a. During start control of the compressor 1, a refrigerant is made to flow into both the main and sub oil separators 3a, 3b so that the refrigerant and the oil are separated and the oil is recovered to the low pressure side, and a decrease of an oil level in the compressor 1 can be prevented. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
