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-   -   Why install fire and smoke damper (https://www.askmehelpdesk.com/showthread.php?t=691664)

  • Aug 7, 2012, 10:05 PM
    wingtatso
    Why install fire and smoke damper
    What is the situation which need to install fire and smoke damper for transfer air duct?
  • Aug 9, 2012, 09:49 PM
    ma0641
    This was answered before. It is to prevent the spread of fire and smoke between communicating units.

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