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    wingtatso's Avatar
    wingtatso Posts: 2, Reputation: 1
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    #1

    Aug 7, 2012, 10:05 PM
    Why install fire and smoke damper
    What is the situation which need to install fire and smoke damper for transfer air duct?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Aug 9, 2012, 09:49 PM
    This was answered before. It is to prevent the spread of fire and smoke between communicating units.
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