
Technical Users Manual ARMANfire Cabinets FK-5-1-12 – TUMARFCABFK5EN – V1.1 – Date: 29/04/2020 Page 6 of 46
1.3 FUNCTION OF THE EXTINGUISHING SYSTEM
The ARMANfire System is designed as a fixed fire suppression system, where the extinguishing agent
is stored in a pressurised vessel with nitrogen at an operating pressure of 18 bar. The nitrogen acts
as the propulsion gas expelling the extinguishing agent, as well as compensation for natural micro
leakages over time. The valve of the vessel is maintained shut by external pressure coming from
the Easydetect sensor tube.
The Easydetect sensor tube is a linear thermal detector mounted inside a defined enclosure (LPCB
certified volumes of up to 2m3) covering all risks within it to ensure rapid fire detection. If a fire
occurs in the enclosure, the sensor tube that is pressurised with nitrogen, (18 bar internal pressure,
as in the pressurised vessel) bursts due to the continuous heat rise. After it occurs, the extinguishing
agent is discharged from the same hole that the fire has produced in the Easydetect sensor tube.
Enclosures may only be operated with a properly installed and fully functional
extinguishing system so to avoid fire propagation to adjacent enclosures in case of a
fire.
Notes to take into consideration regarding ARMANfire systems:
• Regular visual inspections of the vessel pressures on the pressure gauges ensure the system
function and operation outside the service intervals.
• The extinguishing agent is clean agent in gaseous form when discharged, FK-5-1-12, it is
colourless, odourless and electrically non-conductive. It is non-toxic and leave no residue
upon discharge.
• The main extinguishing mechanisms of clean agent is by removing enough heat from the
fire and interrupting the combustion chain reaction.
1.4 DIRECTIVES FOR USERS OF THE SYSTEM
1.4.1 INSTALLERS AND SERVICE PERSONNEL
There are two different useful ways to use this manual. First, following the index accurately step by
step (mainly when it is the first system to be installed and the personnel has no previous
experience) and secondly, as a reference book. In both cases, it is necessary the use of the
drawings provided with the system for accurate, project specific installation.
Intention of this manual is to give specific instructions for installation, maintenance, and testing
requirements for AIRfire systems and components. In any case is intended to accomplish any
requirements of the applicable and mandatory standards of design and installation of systems.
AIRfire systems may only be installed by specialist companies with the required
expertise, qualified personnel trained by the manufacturer AIRfire directly.
The installer of the extinguishing system is responsible for the layout, dimensioning of the fire
extinguishing system, as well as determining the suitability of the fire protection application, the
correct installation and labelling of the approved installed system.
•AIRfire recommends always the adoption of safe working practices in accordance with
current health legislation and safety procedures. It is recommended that personnel in
charge of installation and maintenance of the fire extinguishing system should be properly
trained in its safe use and should read the whole of this manual before initiating any of the
operations mentioned above.