上海冷气机厂试制成功的新一代适用于新型空调列车用KLD—40PQ车顶单元式列车空调机组于今年八月十二日通过技术鉴定。鉴定会由上海市科委主持。该机组经样机性能试验、整车热工试验和装于上海—北京的13/14次及21/22次等特快列车上连续一年余的长期使用考核,证明可靠性好、自控程度高、制冷效果显著,深受用 Shanghai Air-Conditioner Factory successfully developed a new generation for the new air-conditioned train KLD-40PQ roof unit type train air-conditioning unit on August 12 this year, passed the technical appraisal. Identification will be hosted by the Shanghai Municipal Science and Technology Commission. The unit by the prototype performance test, vehicle thermal test and installed in Shanghai - Beijing 13/14 times and 21/22 times the other express train for more than a year of continuous use of the assessment, that the reliability is good, a high degree of automation, refrigeration Significant effect, well received