Winiamando Inc.

Young Wan Kim

Dong Sik Jin

Seok Kyun Kim

Soon Gon Kim

Disclosed herein is an apparatus for controlling the capacity of an air conditioner and a control method using the same. The capacity control apparatus is configured in such a fashion that a 3-way or 4-way direction-switching member and a low-pressure equalizing solenoid valve are provided at a refrigerant path of the air conditioner having a pair of first and second compressors, so that the compression capacity of the air conditioner is adjusted into three stages of 100%, 60%, and 40% using the first and second compressors, enabling easy variable-capacity operation. This has the effect of considerably reducing energy consumption and of preventing wear of the first and second compressors via a rapid compensation of a pressure unbalance between both the compressors. As a result, under any operating condition, it is possible to prevent a liquid backflow phenomenon from occurring when starting operation of the compressors, resulting in an improvement in the reliability and operation efficiency of the compressors.

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Cheonan-si, South Korea

Young Wan Kim