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A fire alarm system must be provided throughout existing buildings containing a Group R-1 occupancy.
Exceptions:
1. In existing structures of Type I construction, no fire alarm system is required in buildings with not more than four stories above grade plane.
2. In existing structures of Type II, III, IV, or V construction, no fire alarm system is required if not more than 25 persons sleep above the second floor.
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.
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.
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)
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.
Existing Group I-1 and R occupancies must be provided with smoke alarms in accordance with Section 907 of the Chicago Building Code. Interconnection and power sources must be in accordance with Sections 14X-5-504.8.2 and 14X-5-504.8.3, respectively.
Exceptions:
1. Where the code that was in effect at the time of construction required smoke alarms and smoke alarms complying with those requirements are already provided.
2. Where smoke alarms have been installed in occupancies that were not required to have them at the time of construction, additional smoke alarms are not required provided that the existing smoke alarms comply with requirements that were in effect at the time of installation.
3. Where smoke detectors connected to a fire alarm system have been installed as a substitute for smoke alarms and the system provides required occupant notification.
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