Chapter 2: Installation and assembly
16 LaserSense HSSD-2 Aspirating Smoke Detector Installers Handbook
• The unit should not be placed in close proximity to any equipment expected to
generate high Radio Frequency levels (such as radio alarms) or units
generating high levels of electrical energy (such as large electric motors or
generators).
• Ensure that when the detector is fitted to the wall there is enough space on
the right-hand side to allow removal and replacement of the filter element.
Table 1 contains a list of procedural guidelines for installation of the detector.
Table 1: Procedural guidelines
Do Don’t
• Ensure that the ClassiFire alarm factor is
appropriately set.
• Ensure that the power and signal cables
are correctly connected before powering
up by use of cable identifiers or electrical
continuity checks. Incorrect connection
could damage the detector.
• Ensure that cable of an appropriate
approved type is used for interconnection.
• Place sampling points so that the detector
will be able to detect smoke at the earliest
opportunity.
• Ensure that the detector exhaust is in an
area with the same atmospheric pressure
as the sample pipes, either by placing the
detector physically in the protected area
or by leading a pipe from the detector
exhaust to the protected area.
• Ensure that the environment of the
protected area is within the environmental
operating parameters of the detector.
• Close unused pipe inlet ports on the
detector to ensure optimal operation.
• Set the appropriate ClassiFire alarm
factor for the area to be detected.
• Set the detector Address Switches
correctly when used in a network.
• Drop the detector.
• Install detectors in damp or exposed
areas.
• Remove or connect boards when the
detector is powered up.
• Connect internal 0 volt terminals to local
earth.
• Attempt to re-use dust filter cartridges
once removed.
• Attempt to adjust or alter detector settings
other than via the user-programmable
functions. Any attempts to adjust the laser
potentiometer are detectable and will void
the warranty on the product.
• Place the detector near high power RF
sources.
• Place the detector so close to other
equipment that there is insufficient room to
access and change the dust separator.
• Use sampling pipe of less than 1 inch
(27 mm) outside diameter without a
suitable 1-inch (27-mm) pipe adapter. It is
important that there are no leaks where
the pipe connects to the detector.
• Use excessive force when fitting sampling
pipes as this may damage the detector.
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