Patent attributes
An air conditioner may include an indoor device and an outdoor device. The outdoor device may include a plurality of compressors, a plurality of bypass tubes respectively connected to the plurality of compressors, and a plurality of bypass valves respectively provided to the bypass tubes. When at least one of the plurality of compressors is stopped during operation of the air conditioner and the plurality of compressors, a bypass valve corresponding to the stopped compressor may be opened to equalize an internal pressure of the stopped compressor to facilitate a re-start of operation of the stopped compressor without adversely affecting overall performance of the air conditioner.