We have a 3-story building using machine roomless elevators (MRL).
I have an inspector asking for a smoke detector at the top of an elevator shaft even though there is no sprinkler at the top of the shaft.
There are roomless machine rooms on the first/ground floor lowest level. We installed smoke detectors in each of these roomless machine rooms putting the smoke/heat detector as close to the object it is protecting. There is no ceiling for these.
The inspector says he wants the smoke at the top of the shaft because of the machine room at the bottom floor and says the smoke will rise and we need the detector at the top of the shaft.
I wrote him a book report that NFPA 72 allows for smoke detectors to be installed close the object they are protecting.
There is a sprinkler in the pit and we have a heat next to it within 24 inches. I really think that the heat in the pit should generate a recall to the alternate level and they have us shunt tripping it?
Some details on the equipment location: the machinery is on the lowest-level inside the shaft. It is accessible by a man door from the side of the shaft.
Because of the machine being inside the shaft, is a smoke detector required at the top of the shaft?
The inspector is asking for the smoke detectors at the top of the shaft because the Machine room is in the shaft at the 1st floor. He says there is no ceiling in the machine room so he wants the smoke detector at the top of the shaft.
Thanks in advance.
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