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3.1
KEYSWITCH
The Keyswitch is used to enable or disable the three control buttons. SOUND ALARM,
MUTE and RESET. The key can only be removed in the control disabled position, with
the key inserted and turned clockwise the controls are enabled.
3.0
OPERATING CONTROLS
The key switch and three buttons on the front of the CIE allows the user and engineer to
access the CIE different operation functions.
The sounder mute push button is used to silence the system sounders and
the internal buzzer during a fault condition. When the mute button is pressed
during a fire activation the system sounders will be silenced but the internal
buzzer will sound continuously until the reset button is pressed. The mute
button is also used to silence the system sounders when the SOUND
ALARM button has been pressed. If the mute button is pressed during fault
condition the internal buzzer will cease to sound continuously and will only
bleep once every 5 seconds. Labelled on the PCB as S2 Mute.
MUTE
The reset button is used to reset and initialize the CIE after a fire activation or
from powering up. After a fire activation before the reset button can be
pressed the mute button must first be pressed, otherwise no reset will take
place. If reset button is pressed with or without a fault condition present the
CIE will re-initialize, illuminating all external LED's along with sounding the
internal buzzer for 3 seconds. The auxiliary supply to the zone terminals is
removed during the initialization period, resetting any smoke heads
connected to the zone inputs. Labelled on the PCB as S3 RESET.
RESET
The SOUND ALARM button is used to activate the sounder circuits, and can
be used to evacuate the building, resound or test the sounders. Labelled on
the PCB as S1 EVAC.
SOUND
ALARM
3.2
CONTROL BUTTONS
A constant tone from the buzzer will indicate either :
1. General Fault
2. Muted Fire Alarm
A rapid on / off tone indicates a fire activation
3.3
INTERNAL BUZZER
Constant
Fast Beep
4.7
MANUAL CALL POINTS
Call points should be sited with the following considerations, the rules below are mandatory.
1, On all escape routes.
2, On landings of stairways.
3, Near final exits to the open air.
4, Nobody has to travel 30 metres to reach a call point.
5, Call Points must be 1.4 metres above the floor and be free from obstruction.
4.10
SOUNDERS
Sufficient sounders should be installed so as to ensure alarm audibility in all areas of the building /
location ensuring a fast and full evacuation. Two sounder outputs are provided on the CIE (Control
Indicator Equipment) allowing the connection of two independent sounder circuits, see BS 5839
Part1:1988 section 9.4 for detailed information.
1. Sufficient sounders should be installed to ensure sufficient dB levels around the premises
to aid a complete evacuation, even in the event of a failure of one of the sounder circuits.
7 5dB should be provided at the bed head of a sleeping person (With al doors closed). 65 dB
should be provided in all other working areas or 5 dB above any noise the re-occur for more
that 30 seconds.
2. The minimum sound levels must be produced in all parts of the building / location. This
includes restricted area's that are infrequently visited, such as service ducts, store rooms,
toilets or lift shaft motor rooms etc.
3. All sounders in a building should be of similar type, do not mix electronic sounders with bells.
4.6
AUTOMATIC 'POINT' DETECTORS
There are four common types of automatic 'point' detectors installed to aid the detection of fires
within a residential / commercial building.
Ionisation and Photoelectronic Devices
detect the
products of combustion (smoke).
Rate of Rise and fixed Temperature Devices
detect changes
in temperature (heat).
Optical smoke Devices
are used for, slow burning smouldering fires, ie for
escape routes and corridors, wood or cardboard stores, do not use in steamy, dusty or smoky
areas such as kitchens and bathrooms etc.
Ionisation Smoke Devices
are used for fast burning,
high energy fires, ie for petrochemical or solvent stores, electrical switch rooms.
Heat Devices
are used when the environment is subject to constant levels of smoke or dirt, ie loading bays,
boiler rooms, kitchens, laundries and plant rooms.
Fixed Temperature Heat Devices
are used
where high ambient temperatures exist, or in areas where sudden changes in temperature may
occur, ie near large windows or heat producing processes.
Rate of Rise Devices
have fixed
temperature operation, but also looks for sudden rises in temperature giving faster reaction than
standard fixed temperature detector. Sufficient detection devices should be installed to provide
adequate protection coverage.
4.8
REMOTE INDICATOR MODULE
Remote Indicator Modules can be used to remotely indicate the state of an automatic detection
device. i.e. there may be 10 rooms on a single corridor, if a single detection device were to alarm
each room would haft to be inspected, which would take valuable time. A remote indicator module
can be placed outside each room to quickly guide a correct response.
4.9
AUXILIARY RELAY
The Auxiliary relay terminals can be used as a voltage free interface between the FIRETRAX
FT1BS / FT2BS CIE. To such devices as magnetic fire door holding devices and communicating
devices to be connected to a phone line. The Auxiliary relay should be considered as a low
current switch, and should not be connected directly to magnetic door holders and should only be
used to switch a larger switching relay.
VI40.1 Created 05/11/2001 Issue 1.3
