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903.4 Fire Protection and Life Safety Systems, Sprinkler System Supervision and Alarms
and waterflow switches on all sprinkler systems shall be electrically supervised by a listed fire alarm control unit. Exceptions: Automatic sprinkler systems ...
903.4 Fire Protection and Life Safety Systems, Sprinkler System Supervision and Alarms
and waterflow switches on all sprinkler systems shall be electrically supervised by a listed fire alarm control unit. Exceptions: Automatic sprinkler systems ...