• Welcome to The Building Code Forum

    Your premier resource for building code knowledge.

    This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.

    Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.

    Ready to upgrade? Log in and upgrade now.

Mag hold opens

Tim Cannon

Member
Joined
Aug 13, 2013
Messages
23
Location
Virginia Beach, Va.
If I am reading the code right the Glynn Johnson 280 is OK to use on corridor doors; but not on corridor to open areas. Going on that assumtion I have recommened to the architect that he use wall hold opens. He is refusing to change it so I told them we will supply the units but will not install into the open areas. They have a few in corridors but they also have 2 leading into a large open dining area. Am I correct in the code on these units?
 
What code and edition are you under?

Are all these rated doors?

Not sure why you think you cannot use a door holder on any of the doors?

As long as they meet the release criteria should be good to go

You can ask the door guru;;

Just hit the highlighted name for email

I Dig Hardware / I Hate Hardware » About Me
 
The way it reads is mag HO need to be tied into the alarm system , then it makes an exemption for the 280. But, it clearly says it is not good going into open areas. Maybe Lori can help...
 
Oh one of those;;

SensaGuard

Would have to see any limitations from the manufacture

I could see if they are in a large room with high ceiling going into a corridor

But not in a corridor going into a large room

Do not have 72 in front of me
 
I looked into the use of a Sensaguard before, in relation to the requirement for monitored smoke detectors. The discussion, including the answer from NFPA on the NFPA 72 requirements, is here: http://www.thebuildingcodeforum.com/forum/door-hardware-forum-sponsored-ingersoll-rand-security-technologies/8636-door-holder-stand-alone-smoke-detector.html

What is it about the open areas that is an issue? If you give me a code reference I'll check it out.

Here are a couple more magnetic holders for you:

I Dig Hardware / I Hate Hardware » WW: No power? No problem!

I Dig Hardware / I Hate Hardware » Mag Holder Extensions
 
Is there anything from the manufacture as far as where they can be located, say into relationship to a ceiling??

I could see if they are installed on the room side, where say the ceiling is 18 feet above the detector. More than likely if a fire starts in that room, the door will not close.

Verses a spot detector that would be required to be mounted on the ceiling normally
 
Charles, it looks like I got my info from you. See your posting Lori referenced. Maybe I interpreted it wrong. Where it says ' Exception; not for open area protection'. As this is for a corridor into a large dining area, I figured that since it was going into an open area it would not qualify.
 
what they mean by not for open area protection, is that they cannot be subsituted for smoke detectors. If a fire alarm system was being designed for a large room with smoke detectors through out it, the Glynn Johnson 280 cannot be counted as far as coverage in that room.

I still wonder if the manufacture has more specs out there as far as how they should be installed, besides how to mount and wire them??????

Just like a smoke detecor has requiements on how to install and where they can be located on a wall or ceiling, I am thinking maybe these do also??

But it maybe like the doors with a fusible link on the closure, maybe they do not!, and the building burns down and the door is still open!
 
Back
Top