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-   -   Why install fire and smoke damper (https://www.askmehelpdesk.com/showthread.php?t=691665)

  • Aug 7, 2012, 10:08 PM
    wingtatso
    Why install fire and smoke damper
    What situation to install fire and smoke damper
  • Aug 8, 2012, 02:53 AM
    hvac1000
    To maintain the wall rating for fire.
    To work with a required smoke removal system.

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