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FM 200 Nozzle location

FM 200 Nozzle location

FM 200 Nozzle location

(OP)
Hello Guys,

Good day!

We have a scenario in which I would like to hear a comment or an opinion from you guys.

The thing is, in the Manufacturer's Manual, it is mentioned that the nozzle should be atleast 300mm max. from the ceiling. In our current site condition, it is not possible since we have very deep beam closely located on each other. The room height is 4.5m, the beam depth is 800mm, the maximum protected height is 2.5m.

Based on these scenario, they leave us with no choice but to provide the nozzle 150mm from the beam soffit. Therefore, the total height of the nozzle from the ceiling slab is 950mm.

My question is that, since the nozzle is around 950mm below the ceiling slab, the FM200 agent will discharge also at this height. What will be now the effect of this on the room condition? particularly the mixing of agent & air.

Is it correct to assume that the mixing of agent & air will occur only at the nozzle height and below. and there will be no complete agent & air mixture above the nozzle height since the density of the agent is heavier than the air.


Hope to hear your insights regarding this matter.


Thank you and have a wonderful day ahead.


Regards,

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