Just normal system sensor smokes.
Which generation were they? 2551, 2251, 2251B, or 2351B? The B501BH sounder base looks like this, and it almost looks like a regular B210LP.
Also, do the apartment units use residential smoke alarms or system smoke detectors? If they are system smoke detectors then they are probably mounted on sounder bases.
I just took a look, and section 907.2.9.1 exception 3 of the 2025 FCNY (amended IFC) allows fire alarm systems to be omitted from Group R-2 buildings that do not have interior corridors serving dwelling units. I couldn’t find any pictures of this building online, since it seems to have just recently been built.
Sounder bases are compliant for audible notification, but given that the building was just recently built, it would need to use the B200S series as opposed to the B501BH series, so they would be obviously visible. The only other possibility I can think of is that the fire alarm signal is delivered through speakers that look like regular paging speakers and that the apartments open directly to the stairwells, eliminating the need for strobes.
Ceiling mount devices exist and are quite common
Absolutely nothing, i checked everywhere.
Has the building fully opened yet? I couldn’t find any photos of the building online, only the building that was there before this building was built. The fire alarm system might not be fully installed, and the system is also not required if there are no interior corridors serving dwelling units.
Yep, its all open btw
Does it have any interior corridors serving the dwelling units, or do the dwelling units all open to the outside? A fire alarm system is not required if the dwelling units open directly to the outside and the building is sprinklered.
I wonder why that is. That seems like a safety issue.
That is specifically part of the IBC/IFC, section 907.2.9.1, exception 3. This is presumably because IBC section 708.1 requires walls between dwelling units to be separated by fire partitions, and that together with the sprinkler system is expected to adequately protect the dwelling unit and the means of egress long enough, since smoke alarms are still required. I think that exception was intended to be applied to smaller buildings (not 8-story buildings that are almost high-rises), but it is technically compliant.
NFPA 1 section 13.7.2.17.1, NFPA 101 section 30.3.4.1, and NFPA 5000 section 25.3.4.1 do not include this exception, although they do have an exception for buildings where each dwelling unit has its own independent exit. However, as far as I know, New York does not adopt any of these NFPA codes.
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This is a 8 floor, small apartment building, no, the dwelling units do not go outside, it doesnt have a corridor.
Are you saying the dwelling units open directly to the stairwell? Visual notification appliances are not required in stairwells, and the AHJ might allow audible appliances to be omitted from stairwells as well.
Also, what devices are installed inside the dwelling units? Are they smoke alarms or system smokes?
Oh no, the dwelling units do not go to the stairway directly, they have a corridor, the stairway has absolutely nothing. But the dwelling units have smoke alarms.
Since the 7002T is completely surface mounted and the 7001T is partially recessed in the wall, that must be a 7000T, which is completely recessed in the wall.
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Oh ok thanks for correcting me
That was a joke.
Oh I feel stupid:rofl:
Sorry about that
Now, you got a horn only unit lol!!
Thing looks worse than the 7002T that smoked one too many cigarettes.
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