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SECTION IV — SYSTEM DESIGN UL EX.3470 ULC CEx747 Page 4-43 4-1-06 REV 5 TANK AND CARTRIDGE REQUIREMENTS ACTUATION AND EXPELLANT GAS LINE REQUIREMENTS Once the hazard analysis is completed and the total nozzle flow This section contains the guidelines for installing the actuation and numbers are established,the quantity and size of agent tanks and expellant gas lines between the regulated release mechanism reg- cartridges needed to supply the nozzles with the proper volumes ulator, each regulated actuator regulator, and each agent tank. of agent at the proper flow rates can be determined.For cartridges These limitations should be considered when selecting the com- used in the regulated release mechanism, flow capacities, tank ponent mounting locations. quantities and sizes, and regulated release cartridge options are given in the table below. Actuation Gas Line—6 to 8*Tanks Maximum 8 Tank maximum reflects the utilization of 3 tank regulated actuators. Total Quantity and Regulated Release Flow Size of Cartridge Options 1.Use only 114 in. Schedule 40 black iron, hot-dipped galva- Numbers* Tanks Nitrogen Carbon Dioxide nized,chrome-plated, or stainless steel pipe and fittings. 1 — 5 (1) 1.5 Gallon LT-20-R 101-10 2.The actuation gas line piping is installed from the regulated 6-11 (1) 3.0 Gallon LT 30-R 101-20 release mechanism to each regulated actuator connected within the system. The total length of the actuation gas line 11 —16 (1) 1.5 Gallon Double 101-30 from the regulated release assembly to the regulated actuator (1)3.0 Gallon assembly(iss) must not exceed 20 ft. (6 m) when using an 16-22 (2) 3.0 Gallon Double 101-30" LT-20-R, an LT-30-R nitrogen cartridge, or a 101-10 or a ► When one or more regulated actuators are used, the following 101-20 carbon dioxide cartridge.See Figure 80. tank and cartridge combinations apply for each regulated actuator: Regulated Actuator Regulated Actuator Tank(s) Cartridge (1) 1.5 Galion LT-20-R or 101-10 (1) 3.0 Gallon LT-30-R or 101-20 (1) 1.5 Gallon and LTA-101-30 or 101-30**or (1) 3.0 Gallon double tank (2)3.0 Gallon LT-A-101-30 or 101-30** or double tank For exceptions to maximum flow numbers,see Distribution Piping Requirements for 1.5 gallon and 3.0 gallon systems in this Section. The 101-30 cartridge can not be used when(2)two 3.0 gallon tanks are manifolded together.) For higher total flow numbers(23 to 110), multiple cartridges and regulated actuators are required as shown in the System Selection Guide in Section IX—Appendix. REGULATED ACTUATOR ASSEMBLY EXPELLANT GAS LINES NOT INCLUDED IN ACTUATION GAS LINE LENGTH TOTALS - REGULATED ACTUATOR ASSEMBLY ACTUATION GAS LINE WITH AN L1=20-R, LT-30-R.101-10 OR 101-20 CARTRIDGE MAXIMUM LENGTH OF 20 FT(6 m), MAXIMUM NO.OF FITTINGS 9 REGULATED ACTUATOR ASSEMBLY "ANSUL AUTOMAN" REGULATED RELEASE ASSEMBLY ' FIGURE 80 000775 / 5 C9