Please keep this user manual for future use. It will expire upon
publication of a revised issue. The latest version is available with your
distributor, dealer or at AF-X Systems BV.
User Manual AF-X Fireblocker Carbon Based Fire Extinguishers version 2.2
9
When working with the AF-X Fireblocker Carbon Series it is
prohibited
to:
-
open and/or dismantle extinguishing units;
-
by any means apply force to the units that could result in distortion, physical or mechanical
damage to the casing;
-
carry out welding activities in the vicinity of the AF-X Fireblocker extinguishing units;
-
smoke in the vicinity of the AF-X Fireblocker extinguishing units.
In case an extinguishing unit has fallen, it should be checked for damage to the activator’s electric
switch and/or other components. When damage and/or dysfunction cannot be ruled out with
certainty, the unit cannot be used and must be returned to the authorised AF-X distributor or
dealer.
Please see to it that all legal requirements, regulations and advice are adhered to. Pay attention to the
risks involved in working at height. Be careful of your footing and use reliable tools and proper personal
protective equipment. Should you have any queries, please consult your employer and/or qualified
consultancy agencies.
To avoid unnecessary exposure of occupants to the discharged extinguishant, factors such as the time
for egress and the risk to the occupants by the fire should be considered when determining the system
discharge time delay. Where national standards require other precautions, these should be
implemented
5.0 Design and installation of the fire extinguishing system
A standalone AF-X Fireblocker Carbon Series generator can be activated by means of a thermal circuit (e.g. an AF-
X bimetal switch that activates at 65 ºC, see annex 2).
The self-activation temperature of the compound is 350 ºC. The self-activation time of the electronically controlled
activation device is > 170 ºC. Please note that equipment used for heating or welding, and other sources of energy,
might provoke activation of the fire extinguishing generator if the self-activation temperature is reached.
The standard requirements for an aerosol fire extinguishing
system
with extinguishing generators are:
1.
The Fire Extinguishing Control Panel
FECP
(whether or not connected to a Fire Alarm System,
FAS
) which
connects, supplies power to, monitors and controls the various components of the extinguishing system.
2.
Detection equipment feeding the FECP with information on possible fire hazards.
3.
Alarm system giving acoustic or optical signals to warn or inform people present in the protected area about
the current situation.
4.
AF-X Fireblocker Carbon Series extinguishing units (generators) that, when activated by the FECP, discharge
the fire blocking aerosol into the protected area.
5.
Wiring and connectors connecting the various parts of the system. Often included in this group are alarm
enabling and disabling switches for manual intervention in the FECP controlled process.
5.1 The Fire extinguishing control panel (FECP)
There are many fire extinguishing systems on the market. When selecting your FECP it is important to consider the
local rules and regulation concerning fire extinguishing systems in general and aerosol fire extinguishing systems in
particular.
The extinguishing generators and other equipment must be fed with the required activation voltage and current.
Note that the extinguishing generators are activated by a heating element with 6,8 (±10%) Ohm resistance. The
required electric activation voltage is 12/24 Volt DC with 1,2 Ampère for not less than 1 seconds. A control or test
current of no more than 0,02 Ampère can be applied without activating the generator.
