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(Amended by Ord. No. 187,719, Eff. 1/23/23.)
Chapter 35 of the 2022 California Building Code to the extent it adopts and amends NFPA 20 is adopted by reference and the following Los Angeles Municipal Code subsections are added to read as follows:
6.4.5.3.1. Where the Fire Department inlet connection does not serve the entire building, the portion served shall be suitably identified.
9.1.5. Water supplies from the following sources shall be permitted:
1. A public waterworks system where pressure and flow rate are adequate;
2. Automatic fire pumps connected to an approved water source in accordance with NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection.
94.2020.4.1. Test Required. When required by the Fire Department, 2 1/2 inch (63.5 mm) pressure regulator hose valves installed on standpipe outlets shall be tested for proper operation at a flow of 300 g.p.m. with a minimum residual pressure of 125 psi in the presence of a representative of the Fire Department.
94.2020.4.4. Drain. The test openings shall drain to a minimum 3 inch (76.2 mm) drain line constructed and installed as required for fire sprinkler drains. The drains shall not discharge where they may cause damage. Where available, drains shall terminate to the fire water storage tank. When test openings are located below tank elevation alternate means for testing and drainage shall be provided as needed.
11.2.3. Flushing the System Riser. Water shall flow from the topmost outlet of each riser until the system is clear of debris.
11.2.3.1. Roof Outlets. Standpipe risers going through the last floor of the building, through a floor under a roof, or adjacent to a roof shall be designed so that they can be flushed through outlets located on roof.
11.2.3.2. Flow. All standpipes shall be flushed individually through the roof, or in the absence of roof outlets, through the topmost outlet at a residual pressure of at least 65 psi. The flow for Class I and Class III standpipes shall be at least 500 g.p.m through each riser.
(Amended by Ord. No. 187,719, Eff. 1/23/23.)
3.16.11. Fire Department Connections. Fire Department connections shall not be connected to on suction side of the pump.
(Amended by Ord. No. 187,719, Eff. 1/23/23.)
Chapter 35 of the 2022 California Building Code to the extent it adopts and amends NFPA 24 is adopted by reference.
(Amended by Ord. No. 187,719, Eff. 1/23/23.)
Chapter 35 of the 2022 California Building Code to the extent it adopts and amends NFPA 22 is adopted by reference.
1. One or more water tanks shall be installed to serve the fire sprinklers and standpipes in a high-rise building. No tanks shall serve more than one building, however, one water service may supply tanks for more than one building, structure or tower.
2. The tank shall be supplied from the City water main via an automatic fill line. The auto-fill system shall be sized to replenish the water in the tank at a rate equal to, or greater than, the required fire pump capacity. The auto-fill lines shall be a minimum of two inches in diameter and shall not exceed a maximum of four inlets into the tank. The auto-fill system bypass shall be provided around all fill lines with a shut off valve that is normally closed. Means shall be provided to flow test the automatic fill valves individually and collectively. A minimum 2 inches tank auxiliary drain valve shall be required for all water storage tanks to accommodate testing.
3. The capacity of the tank shall be based on the required standpipe demand capacity for the duration as specified in Table 19.2.3.1.2 of NFPA 13 or the requirements in Section 403.3.3 of the 2022 California Building Code, whichever is greater.
(Amended by Ord. No. 187,719, Eff. 1/23/23.)
Appendices B, D, H, I, and J of the 2022 California Plumbing Code are adopted by reference. Appendices C, E, F, G, K, L, M, and N of the 2022 California Plumbing Code are not adopted, and Appendix A of the 2022 California Plumbing Code is adopted by reference with the following amendment:
A 104.1. Residual Pressures. Decide what is the desirable minimum residual pressure that shall be maintained at the highest fixture in the supply system. The available residual pressure shall be not less than 15 psi (103 kPa). Where fixtures, fixture fittings or both are installed that require residual pressure exceeding 15 psi (103 kPa), that minimum residual pressure shall be provided.
(Amended by Ord. No. 182,848, Eff. 1/3/14.)
Division
1 Administration
2 Definitions
3 General Requirements
4 Ventilation Air
5 Exhaust Systems
6 Duct Systems
7 Combustion Air
8 Chimneys and Vents
9 Installation of Specific Appliances
10 Boilers and Pressure Vessels
11 Refrigeration
12 Hydronics
13 Fuel Gas Piping
14 Process Piping
15 Solar Energy Systems
16 Stationary Power Plants
17 Referenced Standards
18 Appendices
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