How to wire a magnetic door hold on smoke alarm circuit?

[alarm man]

Do you use this site often?

now and again,depends on the ban..:goofy:

 

[alarm man]

tho really mx,id see exactly what the clients want,they may want a sytem that covers the flats and communal areas,not knowing the layout of the buiding tho it sounds a nice place to live,they may want an addressable system with sounder bases etc,that will involve a subby for programming etc but plenty sparks and small fire co's will be able to help you out,its an earner as you will be wiring it etc

 

[lauriehurman]

Well it's not appropriate for a £3.5M St John's Wood flat but for us domestiques;
Kidde sell a "surface pattress complete with 8A relay" which I have used to trigger emergency lighting.
IIRC it has normally open and normally closed outputs. Cheap and very easy to fit, it just goes underneath the mains smoke/heat detector.
Hope that helps someone.
Laurie

 

[sparkydude]

If the flats are £3.5million each a full addressable fire alarm linked to the landlords panel will most definteley be what they are looking for , nobody in a 3.5mill flat is wanting to have to try and locate a fire by actually looking they want to see it on a display screen LoL.

You will be governed by the designers on this one and i am more than certain the fire officer will want his two pennies worth aswell, and building control probably .

Ask for a full Spec and go from there.


Nick

 

[tazz]

Building control will mostly request only communial areas be covered. indiviual flats will usually have indipendent mains powered smokes. As alarm man has stated a covential panel will be fine using a zone per floor (ie 2 floors 2 zones) after 4 floors possibly easy to then look a addressable. Other solutions are to use 230v door retainers and interface with with a relay. Domestic Part 6 detection would not generally be used unless the building was classed as a house coversion, so part 1 would stand in this situation.

 

[alarm man]

in hindsight if these flats are worth 3.5 mill each,say theres 10 thats over 35 mill worth of property,id want a full addressable system,a good one at that by a national fire company,cause and effects etc not to rely on domestic smoke detectors,im sure the insurance companies will have their say too..

 

[tazz]

Weather a council block of flats or 35 million private block of flats building control will have the final say.
From a design point of view, an addressable system would aid any futher additions to the project