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Bosch Building Technologies

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    How to Plan Location and Spacing of the Bosch Projected-beam Smoke Detectors

     More information for this can be found in the Application Guide for the Projected-beam Smoke Detectors (DS240/DS241 and D296/D297) on the Bosch website www.us.boschsecurity.com

    Location and Spacing
    The D296/D297 detectors allow a range of 30 ft to 350 ft (9 m to 106 m) and spacing up to
    60 ft (18.3 m). Space the detectors no more than 60 ft (18.3 m) between projected beams
    and no more than half the spacing between a projected beam and a sidewall . You can
    determine other spacing based on ceiling height, airflow characteristics, and response
    requirements. In some cases, mount the transmitter on one end wall and mount the receiver
    on the opposite wall. You can also mount the transmitter and receiver up to one-quarter of the
    spacing distance from the end walls.
    See the following figure:

    2018-06-07_09h22_31.pngQ - A common question we get is can the beams be crossed?

    A - The answer is yes.

     

    Version history
    Revision #:
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    Last update:
    ‎06-13-2018 04:17 PM
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