AOV/ Automatic opening vents are used to remove dangerous smoke from buildings which could be caused from a fire outbreak. A single zone system can usually be found in communal stair escapes with an automatic velux style window at the top, these are both linked to the main call point/control panel and activate upon a fire alarm activation.


You can also have multi zone systems, which can comprise of several products from Dampers, chain drivers, louvers, em-vents and multiple panels. These are more complicated systems and we would recommend a full fire strategy to determine a design.

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