Chapter 2: Installation and assembly
LaserSense HSSD-2 Aspirating Smoke Detector Installers Handbook 15
Antistatic precautions
This system contains static-sensitive components. Always ground yourself with a
proper wrist strap before handling any circuits.
Caution: When handling any electric components or printed circuit boards,
antistatic precautions must be followed. Failure to do so may result in component
damage.
Static discharge can be reduced by adhering to the following guidelines:
• Always use conductive or antistatic containers for transportation and storage,
if returning any item.
• Wear a wrist strap while handling devices and ensure that a good ground is
maintained throughout the installation process.
• Never subject a static sensitive device to sliding movement over an
ungrounded surface and avoid any direct contact with the pins or
connections.
• Avoid placing sensitive devices onto plastic or vinyl surfaces.
• Minimise the handling of sensitive devices and Printed Circuit Boards (PCBs).
General installation guidelines
The following is a brief set of guidelines on installing detectors:
• It is recommended that system design and installation is carried out by
suitably experienced and trained personnel.
• The detector should normally be mounted at a level where there is easy
access to the unit for configuration and programming.
• Unused sampling pipe inlets must be left closed.
• The exhaust air from the unit must not be impeded in any way. If the unit is
mounted in a different air pressure from where the air is being sampled (for
example an air duct), then a pipe must be routed from the exhaust port back
to the same air pressure zone as the sampling holes.
• All signal cables must be screened and must be of a suitable type. The
specific type of cable will normally depend on the local fire regulations.
• The unit must not be placed in areas where either the temperature or humidity
is outside the specified operating range.
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