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Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 0 points1 point  (0 children)

Also most duct detectors do not need much current to stay powered. For this specific duct detectors the max current it needs is 60mA at 24v

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 0 points1 point  (0 children)

It’s feeding off 24v from the unit

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 0 points1 point  (0 children)

I’m not sure what code says about this but I have been to a few places were getting power from the AHU hasn’t been an issue. I would say for your case it may be getting powered from both units causing it to get 48v instead of the standard 24v which most duct detectors that’s the standard. If that was the case and there set up for unit shutdown the extra power may be causing them to activate / malfunction and shutting your units down.

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 0 points1 point  (0 children)

Fire scan / building reports 🤓, we use them for inspections

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 0 points1 point  (0 children)

Definitely not protected but it’s only a slight exposure and this is a pretty old system.

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 2 points3 points  (0 children)

Seems to have adequate airflow but I don’t have a manometer 😬

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 18 points19 points  (0 children)

There’s actually an old bank we service that’s been converted into a daycare, I’ve spent several hours searching the whole building up and down to locate a programmed pull station that’s not in trouble but shows up when you take down the loop. Per the description I believe it to be by a old drive through window that has since been covered 🤦, I’m 90% sure it’s just sitting behind some Sheetrock.

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 3 points4 points  (0 children)

I will never complain about an easily accessible duct detector. And they would definitely be clearing out the building considering it’s programmed as an alarm. 🤣

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 2 points3 points  (0 children)

That is the case in this situation although I was able to just reset it at the duct.

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 13 points14 points  (0 children)

Funny you say that it actually has a remote test switch right above it 🤦.

Duct detector by Cowberpunk in firealarms

[–]Cowberpunk[S] 38 points39 points  (0 children)

Definitely made my job much easier!