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<br />B. NOZZLES <br /> <br />The Models NL-A, NL-R, NL-UB, NLS-A, NLS-R, and NLS-UB can be used with <br />the PCL-240 system in the same applications' as outlined in the Technical <br />Manual. <br /> <br />The following changes have been made in nozzle placement requirements for <br />the PCL-240: <br /> <br />1. The Model NL-P can be used only in duct applications as outlined in the <br />Technical Manual. <br /> <br />2. The Model NL-A must be used to protect the plenum section of the hood as <br />described in the Technical Manual. The Model NL-P may not be used in <br />plenum applications with the PCL-240 system. <br /> <br />3. A new nozzle has been developed for use in duct applications with the <br />PCL-240 system. This is the Model NL-D3 (tip #765), which must be used in <br />place of the Model NL-D in duct applications as outlined in the Technical <br />Manual. The NL-D3 has a 3 flow point rating. Although the NL.D also has a <br />3 flow point rating, it may not be used with the PCL-240 system. <br /> <br />MAXIMUM NOZZLE USAGE ON PCL.240 SYSTEM <br /> <br />Nozzle <br />NL-A1NLS-A <br /> <br />NL-P <br /> <br />Application <br /> <br />Appliance <br />Plenum <br />Plenum <br />Duct <br />Radiant Charbroiler <br />Upright Broiler <br />Duct <br />Duct <br /> <br />Maximum Number <br />8 <br />8 <br />May not be used <br />8 <br />8 <br />8 pairs <br />May not be used <br />2 <br /> <br />NL-RlNLS-R <br />N L-UB/N LS-UB <br />NL-D <br />NL-D3 <br /> <br />C. PIPING <br /> <br />The main supply line for the PCL-240 system is the run of re" pipe from the <br />cylinder to the hazard area. In general, this will be a straight line run using <br />tees to "branch" off the main. Limitations on main supply line piping are <br />shown in Table 1. <br /> <br />Table 1. Piping Limitations for PCL.240 <br /> <br /> MAX. MAX LENGTHS MIN. LENGTHS MAX. <br /> PIPE FLOW FEET FEET VERT. <br />Section DIAM. POINTS LINEAR EQUIV. LINEAR EQUIV. RISE <br />Main Supply '8" 8 50 75 3 7 12' <br />Line <br /> <br />See Figure 2. for acceptable configurations <br /> <br />ULEX 3830 ULCEX 812 <br />June 1, 1991 <br />