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    1. Operations & Training

    NFSA Technical Tuesday: High Velocity Low Speed (HVLS) Fans

    June 7, 2011 - June 7, 2011
    HVLS fans first came to market in 1995 and since that time have become popular for ventilating large warehouse facilities. In 2007 Xl Gaps did a full scale fire test to see how these fans affected sprinkler operation. The test had poor results and a multiphase full-scale testing plan was implemented. Phase 1 of the testing was completed in 2008 and 2009. Phase 2 of the testing was completed in 2010.
    https://nfsa.org/cgi-bin/techtuesday.cgi?step=1

    HVLS fans first came to market in 1995 and since that time have become popular for ventilating large warehouse facilities. In 2007 Xl Gaps did a full scale fire test to see how these fans affected sprinkler operation. The test had poor results and a multiphase full-scale testing plan was implemented. Phase 1 of the testing was completed in 2008 and 2009. Phase 2 of the testing was completed in 2010. This seminar will address the test results of the phase 2 testing as well as strategies for installing HVlS fans in a manner in which they will not greatly affect the sprinkler system performance.

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