You are viewing an archived code
Whenever any sprinkler system is installed under this code which has more than ten sprinklers, a local alarm system shall be connected to the sprinkler system. There shall be provided an alarm on each system which is wholly or partially wet, consisting of an alarm valve or a listed flow indicating device and necessary attachments; they shall be of a design which will initiate a water flow signal if there is a flow of water through them equal to the flow from one sprinkler head.
The alarm on a dry pipe system shall include an alarm attachment to each dry pipe valve. Where two or more dry pipe valves are in the same frost-proof enclosure, the same alarm may serve all dry pipe valves in each enclosure. The attachments for either wet or dry systems shall include a water motor gong or electric bell on the outside of the building above a fire department siamese connection and inside bells and other electrical equipment hereinafter described.
Alarm, dry pipe, pre-action, and deluge valves shall be fitted with an alarm bypass test connection for the electric alarm switch, water motor gong or both. This pipe connection shall be made on the water supply side of the valve and provided with a control valve and drain for the alarm piping.
Water motor gongs shall be located as near the alarm valves or dry pipe valves as possible; piping shall be galvanized or brass and shall be installed to drain. A sign shall be placed near the outside bell where readily visible and shall bear the following:
“SPRINKLER ALARM
WHEN BELL RINGS
CALL
FIRE OR POLICE DEPARTMENT”
Electrically operated alarm attachments shall be installed in accordance with NFPA 72-2013. Outside electric alarm devices shall be listed for outdoor use.
All water flow alarm devices on automatic sprinkler systems installed in open plan schools shall be interconnected to the city fire alarm system.
(Prior code § 91-37; Amend Coun. J. 10-30-96, p. 31216, § 1; Amend Coun. J. 9-6-17, p. 55278, Art. VII, § 26)