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Notes on system
installation
The power-up of the control panel and
commissioning of the system is done by
the Servicing organisation.
Installation requirements
It is recommended that the installer follow the general
requirements of
BS5839:Part 1:2002 , which is the code of
practice relating to fire detection and alarm systems for buildings.
The installer must follow the relevant parts of BS7671 : 1992
Requirements for Electrical installations, 17th edition of
IEE wiring
regulations
if installation is in the United Kingdom, UK.
Second fix installation
To prevent the possibility of damage or dirt degrading the
performance or appearance of the products, the installation of
the panel should be delayed until all major building work in the
area is complete.
"
The installation of all outstanding parts and
panel the panel power up is usually carried out during
system commissioning.
Fixture and fittings
It is the installer's responsibility to provide adequate fixtures and
fittings for the type of construction surface onto which a product
is to be mounted, whilst utilising the fixing points on the product.
As an aid to this decision, the weight and overall size of each full
assembly together with implications on cable entries and routing
should be taken into consideration.
"
All these procedures assume that the cable,
gland, steel box (BESA box) and other related
accessories are provided by the installer.
As fitted drawings
The installer should acquire site specific information from the
interested parties, for details on the location of products for
installation. The acquired information together with this guide and
the relevant standards should be used to assist the work.
Each product assembly can be identified from its package label.
The contents of all packages should be checked for any
discrepancies.
Cable type and routing
Appropriate attention must be given to ensure the correct cable
type is installed in accordance with 'as fitted drawings', site
specific information and recommendations of
BS5839 Part 1 :
2002 . The cables must be installed using cable manufacturers
recommended fixing and accessories.
Fire sensor cover
Each fire sensor may be supplied with a plastic dust cover. The
cover must be fitted to prevent dust and dirt from the building
work contaminating the fire sensor.
Earth continuity
All earth connection points should be clean to provide a good
electrical conductivity path. To maintain the earth
continuity: all earth leads and fittings
provided should be
installed. The loop cable screen must be continued through
each system device on the loop circuit, whether the earth is
connected to the device or not.
"
Do not use any part of building structure for
earthing.
Some of the system products having metal enclosure with zinc
coating around the cable termination points, the coating
provides a good electrical conductivity path for cable earth
termination. The zinc coating on metal enclosures should not be
damaged. Any damage will expose bare metal, which can
corrode and make a poor earth connection.
Power supply
The power to the system is derived from the mains and battery
supplies. Before removal of the electronic module from the panel
or disconnection of any cable from the board ensure both mains
and battery supplies are disconnected.
Mains supply
Mains supply to any fire alarm control and indicating equipment
must be via an unswitched 5A fused spur unit. A disconnect
device must be provided to disconnect both poles and must have
a minimum gap of 3mm. The disconnect device should be
available as part of the building installation and must be easily
accessible after installation is complete.
&
All mains powered equipment must be earthed.
Devices
Always install new devices on the loop circuit. Never use devices
that have been previously installed on the loop circuit of another
system.
Local Manual Call Point
To comply with the requirements of EN54-2 : 1997 a manual call
point must be installed near the control panel. The call point
when activated must be set up to sound all alarms without delay.
"
Failure to install and configure a local manual
call point in the manner described above when delays are
set up on the system will result in the panel not
complying to EN54- 2 : 1997.
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SenTRI ONE System