(1)
An automatic sprinkler system shall be equipped with waterflow detecting devices and, if an annunciator is required by Article 3.2.4.8., shall be installed so that each device serves
(a)
not more than one storey, and
(b)
an area on each storey that is not more than the system area limits as specified in NFPA 13, “Standard for the Installation of Sprinkler Systems.”
(2)
Waterflow detecting devices required by Sentence (1) shall be connected to the fire alarm system so that, upon its actuation, an alert signal or an alarm signal is initiated.
(3)
The actuation of each waterflow detecting device required by Sentence (1) shall be indicated separately on the fire alarm system annunciator.