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Thread: FSD help 101

  1. 01-10-2013, 08:46 AM #1
    Iceman_pdx
    Iceman_pdx is offline Regular Guest
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    FSD help 101

    Hello group,

    I'm on a job where I need help with the fire smoke dampers.wondering how these work, I'm new to the dampers. Power open, just wondering how these work. Know nothing!!!!! They have 2 sets of FSD Honeywell #ML4115 b 1008 and the other is a greenheck with tb2000 actuator. 2 different sets of dampers, have they already been replaced before. There having issues of them closing. Looking for a 101 on FSD. Thanks group
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  2. 01-10-2013, 01:12 PM #2
    duckman373's Avatar
    duckman373
    duckman373 is offline Professional Member
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    Typically, they close on power loss. Look for a toggle switch nearby, turn it off and they should close, turn it back on and they open.
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