14X-5-504.6.7 Group R-4.

A fire alarm system must be provided throughout existing buildings of Group R-4 occupancy.

14X-5-504.7 Voice communication systems.

Voice communication systems must be installed in existing high-rise buildings in accordance with Sections 14X-5-504.7.1 through 14X-5-504.7.2. The two-way communication system may be combined with the one-way system where approved by the fire code official.

Exceptions:

1.   Buildings of Group R-2 occupancy equipped throughout with an automatic sprinkler system.

2.   Buildings of Group E or I occupancy equipped with a fire alarm system as required by Section 504.6.

14X-5-504.7.1 One-way voice communication system.

A selective one-way voice communication system must allow communication from the fire command center to the following areas:

1.   Elevators.

2.   Elevator lobbies.

3.   Exit stairways, with at least one speaker on every fifth floor.

4.   Office areas exceeding 5,000 square feet (465 m2).

5.   In corridors at intervals not to exceed 75 feet (22.9 m).

6.   At doors to exit stairway enclosures.

Exception: Buildings of Group R-2 occupancy with an occupant notification system installed prior to January 1, 2005 that was accepted by the fire code official.

14X-5-504.7.2 Two-way voice communication system.

A two-way voice communication system must allow two-way voice communication between the fire command center and stations located in every exit stairway at least every fifth floor.

Exception: A building of Group R-2 occupancy, other than a dormitory, that does not exceed 15 stories above grade plane and contains 60 or fewer dwelling units.

(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 25)

14X-5-504.8 Single- and multiple-station smoke alarms.

Single-and multiple-station smoke alarms must be provided in existing Group I-1 and R occupancies in accordance with Sections 14X-5-504.8.1 through 14X-5-504.8.4.