Aanzuigrookmeldermodule
De aanzuigrookmeldermodule neemt via een aanzuigluchtfilter continu luchtmonsters uit het beschermde 19"-rack. De module is standaard voorzien van twee hoogst gevoelige rooksensoren, waarvan de aanspreekgevoeligheden zijn ingesteld en de die de luchtmonsters op het rookgehalte analyseren. De verschillende aanspreekgevoeligheden bieden de optie van voor- en hoofdalarm:
Zodra de eerste sensor rookdeeltjes detecteert, schakelt het systeem het vooralarm in. Op dit tijdstip kunnen stroomkringen automatisch uitgeschakeld worden, zodat de verdere uitbreiding van de brand bemoeilijkt wordt. Als de brand zich desondanks uitbreidt, detecteert ook de tweede sensor rookdeeltjes, wat het hoofdalarm activeert. De stuurelektronica van het systeem activeert tegelijk de Novec™ 1230 blusmodule.
MX 1230 extinguishing module
MX 1230 extinguishing module consists of a pressure-resistant metal container with the extinguishing agent FK 5-1-12, a release mechanism with a valve and a propellant gas cartridge, an extinguishing agent leakage monitor and the OneU extinguishing nozzle. During the extinguishing process the propellant gas cartridge is opened and the liquid extinguishing agent is released.
The special geometry of the nozzle ensures that the extinguishing agent is vaporized when exiting the nozzle enabling it to unfold its full extinguishing effect. The agent permeates through the rack and all installed devices and cable spaces. In ventilated IT racks, the central position of the nozzle on the front side of the device is also beneficial for the distribution of the extinguishing agent. The fire is extinguished quickly, without residues. MX 1230 module stores enough extinguishing agent to protect closed 19" racks with a maximum volume of up to 2.8 m3.
Power supply, control system, information
The power supply module, consisting of the power supply unit and rechargeable batteries for the emergency power supply, ensure uninterrupted operation for at least four hours. The detection and control electronics equipment permanently monitors the smoke sensors for proper functioning and possible contamination and automatically triggers the MX 1230 module in the event of a fire.
Optionally, the extinguishing module can be activated via an external manual release. Floating contacts are available for forwarding alarms and malfunctions, e.g. to a central process control or to a superordinate fire detection system installed in the building, as well as for power shutdowns. A two-line LCD display and six additional LEDs indicate the operating status of the OneU fire protection system. OneU fire protection systems can also be integrated in Ethernet networks to route messages via text message or email, and to display them on IP-enabled devices.
