以节能的方式符合ANSI/ASHRAE标准62-1999的挑战，导致一些暖通空调从业人员得出结论，在航站楼使用专用的外部空气系统和合理冷却提供了最佳解决方案。尽管这些系统在大多数应用中都非常可行，但它们的安装成本可能高于长期以来一直青睐的它们打算替代的全空气可变风量（VAV）系统。因此，使用空气-水系统解决通风和非设计湿度问题存在阻力。本文将探讨将循环配电系统与灭火系统相结合的可能性，以减轻与安装空调相关的第一成本损失- 水系统。这一概念在19世纪末首次使用，并在20世纪70年代进一步发展，在许多情况下，它可能有助于使空气-水系统首先在成本上与所有空气VAV系统具有竞争力。需要探讨的具体问题包括遵守规范和标准、成本影响和设计考虑。单位:双引用:研讨会论文，佐治亚州亚特兰大，2001年

The challenge of conforming to ANSI/ASHRAE Standard 62-1999 in an energy-efficient manner has led some HVAC practitioners to the conclusion that using dedicated outside air systems in conjunction with sensible cooling at terminal units offers the best solution. Although these systems are very feasible in most applications, they may have a higher installation cost than the long-favored all-air variable air volume (VAV) systems they are intended to replace. Thus, there is resistance to the use of air-water systems to solve ventilation and off-design humidity problems. This paper will explore the potential for integrating hydronic distribution systems with fire suppression systems in an effort to mitigate the first-cost penalty associated with the installation of air-water systems. This concept, which was first used in the late 19th century and further developed in the 1970s, may have a place in helping to make air-water systems first-cost competitive with all-air VAV systems in many cases. Specific issues to be explored will include code and standards compliance, cost implications, and design considerations.Units: Dual