Douglas Krantz - Technical Writer - Describing How It Works
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Do I Have to Connect All Fire Panels in a Building Together?

The codes books show the bare minimum needed to have a working fire alarm system. It's what can be gotten away with. The AHJ may have a better idea. Remember, code books are reference books, the AHJ or Fire Marshal represents the laws we have to obey.

Do I Have to Connect All Fire Panels in a Building Together?


Greetings Douglas,

What code requires that two fire panels in a building have to be connected together? I am trying to find it in the OBC, IBC, OFC, & NFPA72 and I am striking out..

Thank you, MF

Things to think about with this:

Single or Dual Fire Alarm Systems

The idea behind connecting two fire alarm panels together is to make a single fire alarm system out of two separate fire alarm systems. If one fire alarm system senses fire, then both systems sound the alarm.

Normally, if there's a fire, it would be nice if everyone in the building got the "Get Out of the Building" alarm. If the two fire alarm systems aren't connected together, some people won't be told to "Get Out" until the fire has progressed far enough to set off the second system. By that time, the fire will be moving fast.

If it's the Authority Having Jurisdiction (AHJ) that is requiring the two systems to be connected together, read:

https://www.douglaskrantz.com/SCWhoIsAHJ.html

This shows some insights on who is the AHJ, and what authority the AHJ has.

Douglas Krantz

facpdoug@douglaskrantz.com
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