347. In a residential occupancy for the elderly and a residential board and care occupancy designed in compliance with Sentence 18.104.22.168. of NBC 1995 am. Québec or 2005 am. Québec, a single-signal fire alarm and detection system must be connected to a fire department; the connection must be designed to ensure that, when the fire alarm is triggered, the fire department is alerted, in accordance with NBC 1995 am. Québec.