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L' <br />Emu <br />VSFC Site Installation Examples Wiring Notes for Example Site Wiring Diagrams (ref. Figure 10 - Figure 13) <br />STP <br />Sealing compou <br />IMPORTANT: ends of power <br />and transducer cable outer <br />jackets must be submerged Packing <br />in sealing compound. <br />Power cable <br />vsfc\vsfc28.eps (to T1, T2, T3, and <br />ground in VSFC) <br />Customer supplied <br />sealoff and 3/4-14 NPT <br />nipple <br />Transducer cable <br />(to J7 and ground in VSFC) <br />Figure 14. Sealing I.S. Barrier and Power Cable jacket ends at STP <br />ALBefore applying power to the VSFC unit, you must check the resistance between the terminals on <br />TB2. Resistances between terminals must be within the ranges shown in Table 8. <br />Table 8.- Motor Wiring Resistance limits <br />TB2 Terminals <br />Resistance <br />T1 -T2 <br />2 - 5 ohms <br />T2 - T3 <br />2 - 5 ohms <br />T1 -T3 <br />2 - 5 ohms <br />T1, T2, T3 to ground <br />Infinite (at least 1 Megohm) <br />NOTE: It is possible to wire the pump so that it runs in reverse. To verify correct rotation: <br />1. Install a pressure gauge in the STP's line test port. <br />2. Ensure that the pump inlet is submerged in product. <br />3. Close the ball valve to the product line. <br />4. Disconnect the transducer input from the VSFC. <br />5. Turn on the pump. With the pump running at shutoff (no flow), the pressure should be 28 to 32 psi. <br />6. If pressure is much lower, reverse any two of the motor wires at the TB2 terminal and retest the pressure. <br />7. If reversing the two motor wires doesn't work, check for blockage at the pump inlet. <br />24 <br />