(A) All unmetered fire sprinkler systems without booster facilities or chemical additives must have a reduced pressure principle assembly check valve assembly as a minimum containment device.
(B) All unmetered fire sprinkler systems with a booster facility or chemical additives must have a reduced pressure principle detector assembly as a minimum containment device.
(1996 Code, § 52.77) (Ord. passed 8-4-2008)