(A) In order to comply with this subchapter, only ionization or photoelectric type detectors approved by a nationally recognized testing laboratory shall be installed.
(B) Smoke detectors shall be placed in accordance with the applicable N.F.P.A. standards. Detectors may be ceiling or wall-mounted, provided that if wall-mounted they shall be within 18 inches, but not closer than 12 inches of the ceiling.
(C) In a dwelling unit which contains a well-defined sleeping room separated from the other activity areas of the same unit, the detector shall be located in the corridor within the unit or interior area giving access to the rooms used for sleeping purposes. Where sleeping areas are separated and/or where a single smoke detector will not adequately service all sleeping areas, there shall be a smoke detector installed adjacent to each sleeping area. In a rooming unit, the detector shall be centrally located on the ceiling.
(D) In a dwelling containing two or more dwelling units or any rooming unit, in addition to the requirements for individual smoke detectors in each dwelling unit or rooming unit, detectors shall be placed in centrally located common areas so that smoke detectors will adequately service all sleeping areas.
(E) In multi-family residential dwellings containing four or more units, the smoke detectors installed in the common areas and storage areas shall be installed so that activation of one of the detectors in the common areas or storage areas shall cause all the detectors within the common areas or storage areas contained within exterior perimeter walls or separated by fire or party walls as applicable to be activated to alert.
(Prior Code, § 93.17) Penalty, see § 93.99