多联空调机组控制系统是将变频模块、变频压缩机和制冷系统有机集成一体的控制单元，其技术核心是变频控制模块。
The control system of multi-connected air-condition unit is the control unit which combines a variable frequency module, a variable frequency motor of compressor and a system of refrigeration.
对客车空调机组制冷量测试中出现的问题作了分析，提出了解决问题的办法。
In this paper, problems appearing in the test of refrigerating quantity of passenger car air conditioner sets are analysed, and measures for solving the problems are put forward.
本文通过列车运行试验并用热力学和流体力学的方法研究了KLD40型空调机组冷凝风量以及制冷量等性能变化。
The performance of the KLD40 air-conditioning unit by the test and the methods of thermodynamics and hydrodynamic were researched.
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