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galvanized) pipe is permitted. Fire sprinkler riser check valves shall be <br /> approved by the City and Fire Prevention Bureau. <br /> <br /> CHAPTER 3-System Components - amended <br /> <br /> Section 3-1.1 Valves and Drains is amended: <br /> <br /> Section 3-1.1 Exception No. 1 (a) amended to read: <br /> <br /> (a) To a Underwriters Laboratory (UL) listed Central Station Service <br /> Delete (b) and (c). <br /> <br /> CHAPTER 3-System Components - amended <br /> <br /> Section 3-3 Piping is amended: <br /> <br />Section 3-3 is amended to delete all references to ferrous metal pipe. <br />Ferrous metal pipe is not permitted. <br /> <br />Section 3-6 Alarms is amended to read: <br /> <br />Local water flow alarms shall be provided on all sprinkler systems. Water <br />flow alarms and valve tamper shall be connected to an Underwriters <br />Laboratory (UL) listed Central Station Service under the following <br />conditions: <br /> <br />(a) All buildings with eight (8) or more units or, <br /> <br />(b) When there are four (4) or more buildings per complex or, <br />(c) When there are more than sixty-four (64) units per complex. <br />CHAPTER 4-System Design - amended <br /> <br />Section 4-1.2.1. Number of The of Design Sprinklers and Water <br />Demand is amended to read: <br /> <br />The number of design sprinklers shall be as follows: <br /> <br />(a) Standard for One (1) to Four (4) Dwelling Units. <br /> <br />The number of design sprinklers shall include all sprinklers within a <br />compartment to a maximum of three (3) fire sprinklers based on the <br /> <br /> 27 <br /> <br /> <br />