SunSynk INNAGATOR - Page 36

Innagator | Technical Pack36
13. Mechanical Ventilation
Mechanicalventilationplaysacrucialroleinpost-rescenariostoensureproperaircirculationandremove
residual smoke and gases.
 Post-Fire Ventilation:Followingresuppression,itisessentialtoventilateandcleartheprotectedarea.
If the protected area does not have windows, mechanical exhaust devices should be installed to facilitate
ecientairexchangeandremovalofsmokeandpollutants.Mechanicalexhaustsystemsaidinrestoring
air quality and creating a safe environment for occupants.
 Exhaust Outlet Placement: The exhaust outlet should be positioned in the lower part of the protection
zonetoallowforeectiveextractionofsmokeandgases.Thisplacementtakesadvantageofthenatural
tendencyofsmoketorise,ensuringthatitisecientlyremovedfromtheprotectedarea.Moreover,the
exhaust outlet should lead directly outdoors to prevent recirculation of smoke or hazardous substances
back into the building.
 Ventilation Changes: To achieve adequate air quality and eliminate residual smoke and gases, the
protectedareashouldundergoasucientnumberofventilationchanges.Itisrecommendedthatthe
numberofventilationchangesperhourshouldnotbelessthanve.Thisfrequencyensuresarapid
exchange of air, promoting the removal of contaminants and facilitating the restoration of a safe and
habitable environment.
 Placement of Pressure Relief Port: The pressure relief port should be positioned at a minimum height
of two-thirds (2/3) of the clear indoor height in the protection zone. This strategic placement ensures
thatthereleasedpressureiseectivelyventedwhilemaintainingthestructuralintegrityoftheenclosure.
 Automatic Closure Mechanism: After the pressure relief event, the pressure relief port should be de-
signed to automatically close. This closure mechanism prevents the ingress of external factors, such as
smokeorre,intotheprotectedarea,andmaintainstheintegrityoftherecontainmentmeasures.
14. Gas Alarm Fire Control System
Composition of the Gas Alarm Fire Control System:
 Fire Alarm Host Machine:Locatedinthereprotectionwatchroom,itservesasthecentralcontrol
unit for the system.
 Gas Fire Control Panel and Manual/Automatic Switch: Installed at the main entrance and exit of each
protection zone, allowing manual or automatic control of the system.
 Intelligent Smoke Detectors and Temperature Detectors: Positioned in the room layer, ceiling layer,
andundertheoorwithinthegasprotectionzonetodetectreandchangesintemperature.
 Fire Alarm Bells and Audible/Visual Alarms: Located in the gas protection zone to alert occupants in
theeventofare.
 Emergency Start and Stop Buttons: Placed next to the doors outside the protection zone, enabling
immediateactivationordeactivationoftherecontrolsystem.
 Deated Indicator Light and Audible/Visual Alarm: Positioned above the door to indicate the activa-
tionoftherecontrolsystem.
Gas Extinguishing System Starting Modes:
 Automatic Startup:Whenaprobe(smokeortemperaturesense)detectsare,analarmbellsounds
asanearlywarning,andaccesscontrolisreleased.Ifbothsmokeandtemperatureprobesdetectare
simultaneously,asoundandlightalarminitiates.Airconditioning,newfans,andrevalvesareshuto,
andnon-repowersupplies,suchaslighting,arecuto.Afteradelayof30seconds,thecorresponding
activereextinguishingagentbottlegroupisactivated,drivingthepassivereextinguishingagentbottle
group(ifpresent),andreleasingthereextinguishingagent.
STRICTLY, PRIVATE AND CONFIDENTIAL