Fire alarm panel & velux kf120

[marc8]

Hi poult12
no there are 2 AOV's one in the protected stairwell all levels,
2nd is in a cupboard just off the hallways to flats each level own door.
My explanation in words may not be the easiest to understand

 

[tazz]

Automatic opening vents, or windows in this case....All depends on building layout, if you have a fully open staircase, its pointless zoning them. If there are fire doors to each floor, sealing the levels, then zoning maybe be a decision to take...Its more for the indication than anything, if you see one zone light, second floor you know its contained, if there are 3 or 4 zones lite, its a raging inferno.

 

[marc8]

Hi tazz

both are AOV on drawing but one in protected stairwell, other on landings with door per floor. are you thinking of zoning the protected stairwell at same time, or would you open this regardless of location of fire, this was my thought open both AOV panels regardless of what zone & only the door on level of activation (cupboard door of level)

 

[tazz]

Are the doors on each floor opening to vent shafts..?

 

[marc8]

Hi tazz
that's it vent shaft on each floor sorry got there in the end my explanation I am afraid

 

[tazz]

Then this is pointless zoning them, unless you can zone each door.....How many extraction doors are there over the 3 floors..?

 

[Harni]

Hi Marc,
so just want to clarify, are you saying you have a smoke shaft with a AOV at the top of it then on each floor, a door opening into the shaft?
if so, I've got lots of sites on one particular contract with this set up and they have a controller on each floor in the shaft to control that door and a panel somewhere (usually top floor riser cupboard) to control the AOV. One I/O unit next to each controller and the rest is just programming which if you fit a advanced, kentec or Morley, will be easy.
Just remember it's a non blocked riser so you need a detector within 1.5m of each door.

 

[marc8]

Hi harni
exactly the above, the other AOV is just in the protected stairwell.

 

[marc8]

Hi harni
what is the controller you are using if you don't mind me asking for the doors

 

[tazz]

Harni, sounds like there is 1 velux control panel for all doors, and another for top of staircase roof.

 

[marc8]

Tazz exactly

 

[tazz]

Are there fire doors separating the staircase to each floor level, which lead to the extraction doors.?

 

[Harni]

AH I see. Ok
the ones we do, the doors are already installed so we just come along and add the IOs and go from there. Most of the door controllers are made by envirovent or SE controls and we just connect up to them.
if all of it is controlled off of 1 velux vent, I'm not sure how you would go about opening 1 door

 

[marc8]

Hi harni
what about control from the fire alarm panel

 

[Harni]

It's all dependant on the AOV panel.
if it's just a global evac style input then I can't see how you could do the doors individually. There may be some sort of programming you can set up with the velux panel but I can't seem to find a manual for it!
setting up the fire alarm side is easy but it's all dependant on how the velux panel functions