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Installing the System Manifolded Product Line PLLD Installation <br /> Important aw Seal the NPT threads only with a UL classified nontoxic pipe sealant suitable for the <br /> fuel involved. <br /> e LINE LEAK <br /> SENSOR <br /> OSWIFTCHECK <br /> ® VALVE <br /> e <br /> O <br /> B <br /> pumpsVtlpawN.ePS <br /> Figure 8. SwiftCheck Valve and Line Leak Sensor Installation <br /> Manifolded Product Line PLLD Installation <br /> TLS-350 or TLS-350R(Version 9/109 or later)software provides a feature that <br /> permits the use of the PLLD on product lines supplied by two tanks with two <br /> submersible pumps,up to a combined maximum of eight tanks and pumps. Please <br /> refer to the TLS-350 or TLS-350R Setup Manual(Manual No. 576013-62 or 576013- <br /> 880)for detailed instructions on selecting this option. <br /> Guidelines <br /> Review the guidelines below before you install the PLLD system.The primary tank <br /> has the lowest tank number in the manifolded set;therefore,the secondary tank is <br /> assigned the higher number. For additional parts you need when installing a <br /> manifolded PLLD system,see"Before You Begin"on page 3. <br /> ❑ At the secondary tank,you must provide for leak detection from the Non-vented <br /> Check Valve to the pump,because the PLLD system does not check this section of <br /> pipeline.The secondary tank may use a Mechanical LLD instead of secondary <br /> containment if desired; however,this will provide only 3.0 gph detection for the <br /> 576013-902,Revision G 23 <br />