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C <br />VSFC Description and Component Locations VSFC Unit PC Boards <br />Non-I.S. wiring (VSFC power, pump power, barrier/pressure input, and com) wiring/conduit must enter the power <br />side of the unit only. <br />A <br />Grounding <br />lug __ <br />si s2 <br />A911A99AIl 99999AA0 <br />p0C0 sWi <br />vo <br />❑ ❑ ❑ O O <br />❑ ❑ ❑ O <br />Logic board <br />T1 T2T3 <br />MOTOR I <br />Non -Intrinsically -safe wiring <br />AC POO WERR OUTPUT <br />A <br />INPUT DS <br />side for power, pump, <br />Power board <br />\ <br />barrier/pressure input, <br />(bottom) <br />OGrounding <br />and com wiring/conduit <br />stud <br />QWARNING! <br />' Dangerous voltages present on <br />® power board while the D5 <br />LED <br />is lit. Wait until LED dims <br />J4 ®® 8 <br />before reaching into unit. <br />VSFC main <br />board (top) <br />• <br />Mod <br />\ Intrinsically -safe (I.S.) wiring <br />compartment for sensor -related <br />wiring/conduit only. <br />"s'`\"'`"°Mb ( Shown with cover removed) <br />JS ®® J7 ®® J8 ®® <br />Dt <br />S1 SW2 SW3 <br />❑ ❑ ❑ O O <br />❑ ❑ ❑ O <br />Logic board <br />T1 T2T3 <br />MOTOR I <br />(middle) <br />AC POO WERR OUTPUT <br />A <br />INPUT DS <br />o <br />Power board <br />\ <br />(bottom) <br />OGrounding <br />stud <br />QWARNING! <br />' Dangerous voltages present on <br />® power board while the D5 <br />LED <br />is lit. Wait until LED dims <br />before reaching into unit. <br />Figure 3. VSFC Board Locations <br />7 <br />