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ISD Flow Meter Installation Guide Installation Steps - Vacuum Assist System Above Shear Valve <br />Base of dispenser cabinet <br />Vapor return line from vacuum motor I <br />outlet (assist) or hose manifold (balanced) <br />I <br />1" NPT <br />f Mating fitting (customer supplied) <br />threaded pipe <br />5116 x 314" 1-11.5" NPT x 2" steel nipple <br />I hex bolts w/ <br />lock washers ([yp.j = c Flange with 1" NPT threaded inlet <br />d 0r i 9 (tYp•) <br />INLET Junction box <br />OR — i Inlet Filter (customer <br />supplied) <br />ISO Vapor E 6 , I <br />Flow Meter Inipple <br />I �� '4'. (ApRrox.) J JOR — _ e Outlet O-r_,__OUTLET _ End viewInstall wish arrow 1-11.5" NPT x <br />stamped in end Mating Fitting (customer supplied} <br />I pointing down '— - — - — - — - <br />Threaded pipe outlet option <br />I (see inlet detail above) TLLSS l to <br />CConsole <br />o <br />Top of Vapor return line Shear I <br />pedestal island valve installed as per —f <br />O�e x j — ` m — — — — — — — — — — — — — — - — local code requirements. <br />(, L7 <br />0 4 <br />0 ° <br />0 " — — — <br />0 A test port is required for I Q <br />)� X O _ introducing liquid during <br />!� O TP -201.4 dynamic Vapor return to tank I O <br />Q I backpressure test. �o <br />a1° n, oY <br />Figural. Example Vapor Flow Meter Installation Above Shear Valve <br />r� r� <br />I Y _ Black <br />To• <br />Smart Sensor i Seal -off I I From <br />Interface Module I I I ISO Flow Meter <br />Y Y Y + • White <br />Y f 4 Y <br />112" rigid <br />conduit t <br />Epoxy sealed connections in a <br />.v�v�,ePs weatherproof junction box <br />Figure 2. Field wiring Vapor Flow Meter - Observe Polarity <br />A <br />