本主题涵盖了在施工过程中作为暖通空调系统的一部分安装的阻尼器的相关信息。Volume control dampers can be installed inside a duct or as part of a register or diffuser. They are adjustable devices that control the volume of air provided to a specific location within a structure. Smoke and fire dampers are installed inside a duct located in a firewall. They are automated devices that close to prevent the spread of fire.