10
●
Compressed nitrogen in the pressure cartridge
(4) when extinguishing is started
after opening the
electromagnetic valve
(5), the reduced pressure will be released and
the fire extinguisher will be pushed out of the tank. The extinguishing agent is then
directed through the open
electromagnetic valve
(6) and
the nozzle
(7) and dispersed
under pressure into the protected space.
●
The pressure switch
(8) is used to check the pressure in the pressure cartridges.
●
The bulit-in detectors
(9) are stored in the left rear part of the cabinet. It is a
combination of temperature and optical smoke detection. Air is slowly sucked into the
detectors by an
auxiliary fan
(10).
●
Backup battery Un
(11) is used to back up the system in the event of a power failure
or DC source failure. The battery capacity will fully cover the energy requirements of
the system during extinguishing for a maximum of 4 hours, however, the time is not
guaranteed throughout the life of the device due to the decreasing life of the batteries.
More in the category
Connecting and disconnecting backup batteries
●
The AC connector
(12) is used to connect the
DC source
(13) to the 230V AC
distribution network.
●
The control board
(14) concentrates and evaluates data from all inputs and sensors.
The operation of the entire system is then controlled based on the results.
●
The manual control and local signaling board
(15) is used for manual control,
control and detection of the system status. Unequivocal indication of device status
using LED elements on the front panel reports any current combination of device
functional states. More in the
Singaling chapter
.
●
The board of external inputs and outputs
(16) ensures the collection of signals from
external safety elements and the control of auxiliary devices of the system using
internal relays. At the same time, it enables the connection of 4 potential-free relay
outputs. More in the chapter Setting input/output devices.
Setting input/output
devices
.