由于市场上有许多空气处理机组提供大量预制模块化组件，这些组件几乎可以按任何顺序排列，典型的指定工程师在布置这些组件时有相当大的自由度。设计师可能会对气流顺序的最佳部件位置感到困惑。我们应该在冷却盘管的上游还是下游使用送风机？相对于其他部件，我应该在哪里找到过滤器组和加湿器分散网格？使用单风机双风管布置，其中一台风机通过两个单独的风管（热风管和冷风管）输送空气是否安全？对于我的应用来说，合适的送风温度是多少？本文将讨论这些问题和其他问题。引用:佛罗里达州奥兰多2020年冬季会议论文

With many air-handling units on the market offering numerous pre-engineered modular components that can be arranged in virtually anyorder, the typical specifying engineer has considerable latitude when arranging those components. The designer may be confused about theoptimum component location in order of airflow. Should we use a supply fan upstream or downstream of the cooling coil? Where should Ilocate filter banks and a humidifier dispersion grid with respect to the other components? Is it safe to use a single-fan dual-duct arrangementin which a fan delivers air down two separate ducts, hot and cold? What is the proper supply air temperature for my application? These andother questions are addressed in this paper.