Hochiki FB-1 - Manual (Page 5)

ESP FIREbeam – Installation Manual Page 5 of 19
 2011 Hochiki Europe (UK) Ltd
2-3-0-1340/ISS2/DEC11
1.2 Position
A roof is considered flat unless the height of the apex is greater then 0.6m. If the roof is flat the ESP FIREbeam
system can be placed anywhere under the roof between 0.3m and 0.6m below the roof, up to a maximum height of
40m from the floor. The ESP FIREbeam has a detection area of 7.5m either side of the beam. If the roof is
considered to have an apex, place the ESP FIREbeam system 0.3m to 0.6m down from the top of the apex, up to a
maximum height of 40m from the floor. The maximum protected area either side of the beam can be extended by
1% for every degree of roof pitch, see the example below:
NOTE: Careful design consideration should be made when positioning
beams and reflectors in environments that can be susceptible to
condensation i.e. warehouses near to water that have areas open
to the outside environment or that are exposed to quick extreme
changes in temperature. To assist with this problem that can affect
all beam detectors we produce an anti-fog kit comprising of a
specially coated reflector and lens cover. Individual reflectors are
also available. The standard ESP FIREbeam and range kits can be
supplied as anti-fog sets as a special order.