In short, low voltage in the common areas. Heat detector in each unit connected to the LV system.
Smokes in each bedroom and outside of each bedroom interconnected within the unit only.
I am not even sure of the legality of the town requiring the building to be upgraded from battery to ac smokes. I know in existing one, two and three family buildings battery smokes in the units are acceptable untill a renovation.
[This message has been edited by Electricmanscott (edited 05-08-2005).]
