| 摘要 |
Disclosed herein is a method of controlling a linear expansion valve of a cooling cycle apparatus. The method comprises a first step of calculating a target opening level value according to suction overheat level of compressors (51a, 51b) to control a linear expansion valve (58) based on the calculated target opening level value, and a second step of calculating a new target opening level value according to the suction overheat level of the compressors (51a, 51b) and discharge temperature of the compressors (51a, 51b) to control the linear expansion valve (58) based on the calculated new target opening level value. Consequently, the discharge temperature of the compressors (51a, 51b) is prevented from being excessively increased, and therefore, the compressors (51a, 51b) are prevented from being overheated and damaged, and reliability of the cooling cycle apparatus is improved. |
