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本节介绍加热、通风和空气
空调（HVAC）系统，并讨论其特点和
自动控制系统的部件。交叉引用
这些章节提供了更详细的信息。
正确设计的HVAC控制系统可以提供
舒适的居住环境，优化能源成本
和消费，提高员工生产力，促进
高效制造，火灾时控制烟雾，
支持计算机和电信运营
设备控制对于正确操作
应在设计早期考虑该系统
尽可能地处理。
正确应用的自动控制可确保
设计的HVAC系统将保持舒适
环境和经济表现在广泛的
操作条件。自动控制调节HVAC
响应室内外变化的系统输出
保持办公室一般舒适条件的条件
并提供狭窄的温度和湿度限制
在产品质量要求的生产区域。

This section describes heating, ventilating, and air conditioning (HVAC) systems and discusses characteristics and components of automatic control systems. Cross-references are made to sections that provide more detailed information. A correctly designed HVAC control system can provide a comfortable environment for occupants, optimize energy cost and consumption, improve employee productivity, facilitate efficient manufacturing, control smoke in the event of a fire, and support the operation of computer and telecommunications equipment. Controls are essential to the proper operation of the system and should be considered as early in the design process as possible. Properly applied automatic controls ensure that a correctly designed HVAC system will maintain a comfortable environment and perform economically under a wide range of operating conditions. Automatic controls regulate HVAC system output in response to varying indoor and outdoor conditions to maintain general comfort conditions in office areas and provide narrow temperature and humidity limits where required in production areas for product quality.