velux window opening when heat detector goes off

[Engineer54]

e54 many supermarkets and shopping centres have auto vents to release the smoke,im sure of the exact regs surrounding it but its a very common set up

Perhaps that's why most of them burn down then , when they have a decent fire ...lol!!!

 

[alarm man]

10 bob engineer 54 10 bob lad, im with ya ,

cheeky young scamp,:wink_smile:

 

[Engineer54]

cheeky young scamp,:wink_smile:

Well i suppose it's better than being called a 9 bob Engineer 54!!! lol!!

 

[alarm man]

Perhaps that's why most of them burn down then , when they have a decent fire ...lol!!!

nah its the cheap cardboard buildings they build now,they dont build things to last like the old days

 

[alarm man]

Well i suppose it's better than being called a 9 bob Engineer 54!!! lol!!

id love to be called an engineer,but im just a plain old spark who does alarms

 

[Darkwood]

theres nothing wrong with fitting a relay mod in series with a sounder circuit,the loop will still be monitored,or you could fit the eol in the relay if its the last device,many fire manufactures make them for such use.

Yes as i said if its designed for use with F/A systems there isnt a problem and as long as it forms part of the monitored circuit which , ive seen faults arise before where a standard 24v dc relay has spiked the electronic, i wasnt teaching you to suck eggs here as i do see you are well aware and educated in this area but to the newby joe blogs he could mis-interpret what you said. No offense meant

 

[Engineer54]

id love to be called an engineer,but im just a plain old spark who does alarms

There's nothing PLAIN about a good solid sparks Alarm Man! lol!!

 

[alarm man]

Yes as i said if its designed for use with F/A systems there isnt a problem and as long as it forms part of the monitored circuit which , ive seen faults arise before where a standard 24v dc relay has spiked the electronic, i wasnt teaching you to suck eggs here as i do see you are well aware and educated in this area but to the newby joe blogs he could mis-interpret what you said. No offense meant

non taken mate,i know what you mean about a bog standard relay on the loop,the coil could put a fault on the loop,you could get round that with a couple of diodes but i would never put anything other than a properly defined fire relay on to any loop so yes i do agree with you..:love:

 

[Darkwood]

Yes quite correct, but that situation applies only to sealed stairways that have been classified as emergency escape routes, and fulfills all the criteria. ie, ...fire rated landing doors, landing doors must open onto the stairwell, doors must not allow substantial air flow past them when closed, all doors to be mechanically held closed (sprung/hydraulic door closers) Stairwell must not contain any flammable material etc etc...


These types of stairwells have a forced air supply to open roof vents, to a give positive air pressure within the stairwell that also helps to keep landing doors closed. All such systems can be over ridden by any fireman's control point...

Yes its all ringing bells (pun intended) also there was restrictions on hallway/stairwell furniture in that pictures etc werent allowed if flammable, but can understand reasons for it.

 

[IQ Electrical]

This thread illustrates perfectly the need for a Fire Risk Assessment-anyone here can tell you how to get a Velux to open in fire conditions but to decide whether this is actually needed or indeeed safe is a different kettle of fish and one that requires careful thought!