Notification Programming - Mixed Use Floor

[designer82]

Working on a commercial building, 4 floors. Each floor is roughly 8,500 sq.ft.
2nd floor was previously only business, now it’s split into business & R-4 Residential.
The R-4 Residential space has a bunch of sleeping rooms with a shared common corridor and common living rm./kitchen.
I added a bunch of smoke/co detectors in the R-4 space for the sleeping units.
There’s a question regarding alarming. Initially I had noted to program it such that: Any initiation device within a sleeping room alarms only the sleeping room and sends supervisory signal. But now the architect is saying this is actually a “dwelling unit” since there’s a shared kitchen/living rm.
Would it make more sense to program to alarm the entire R-4 space if initiation of any device in any of the sleeping rooms?
Or stick with alarming just the affected sleeping room?

Also, initiation of a common device in R-4 area (common corridor/living/kitchen)… would it make more sense to alarm just the R-4 area in that case or whole building?

Thank you

 

[Elect117]

Working on a commercial building, 4 floors. Each floor is roughly 8,500 sq.ft.
2nd floor was previously only business, now it’s split into business & R-4 Residential.
The R-4 Residential space has a bunch of sleeping rooms with a shared common corridor and common living rm./kitchen.
I added a bunch of smoke/co detectors in the R-4 space for the sleeping units.
There’s a question regarding alarming. Initially I had noted to program it such that: Any initiation device within a sleeping room alarms only the sleeping room and sends supervisory signal. But now the architect is saying this is actually a “dwelling unit” since there’s a shared kitchen/living rm.
Would it make more sense to program to alarm the entire R-4 space if initiation of any device in any of the sleeping rooms?
Or stick with alarming just the affected sleeping room?

Also, initiation of a common device in R-4 area (common corridor/living/kitchen)… would it make more sense to alarm just the R-4 area in that case or whole building?

Thank you

Honestly sounds like a question better suited to the local fire inspector or building inspector. I would say the initiation device should trigger the whole floor since it is shared space kitchen. I think it is NFPA 101 9.6.2.10.7.2 & 9.6.2.10.9 .

There might be other things in NFPA 101 or local codes.