精密空调能够充分满足机房环境条件要求的机房专用精密空调机（也称恒温恒湿空调）是在近30年中逐渐发展起来的一个新机种。早期的机房使用舒适性空调机时，常常出现由于环境温湿度参数控制不当而造成机房设备运行不稳定，数据传输受干扰，出现静电等问题。
精密空调在运行过程中经常因局部控制故障，出现冷热抵消的现象，能源浪费严重。
Once the locally controlling system is out of control, subsequently emerging cold and hot offset will bring about severe energy waste.
应用于工业厂房和数据中心的精密空调为保证高要求的人工环境，能源消耗相当惊人。
To guarantee the high standard environment, application of precised air conditioning for industrial plants results in large amounts of energy wasted on the cold and heat offset.
数据中心使用空调(精密空调和冷水空调机)、冷却设备、冷却塔、节热器等冷却系统。
Data centers use cooling systems such as air conditioners (CRAC and CRAH), chillers, cooling towers, economizers, and others.
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