This section will focus on water systems and HVAC systems, but many of the principles of qualification, maintenance, and operation of these systems can be applied to all plant systems.

本章节将专注于水系统和空调系统，但许多确认，维护，和操作这些系统的原则可以应用于所有车间系统。

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HVAC HVAC construction management for the use and maintenance is also of great significance.

暖通工程的施工管理对暖通空调的使用和保养也有着重要作用。

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Operating and maintenance experience for chilled water system, cooling water system, compressed air system, steam system and HVAC system.

具有冷冻水系统，压缩空气系统，冷却水系统，蒸汽系统，空调通风系统等系统的运行维护经验。

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Comfort Systems offers installation, maintenance, repair and replacement services for heating, ventilation, and air conditioning (HVAC) systems in the mechanical services industry.

FORBES: Comfort Systems Gains Momentum