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4 <br />12.00" (30.48 cm) <br />MANHOLE <br />GRADE —It - <br />CONTROL * <br />MODULE <br />irs.'!—I I <br />* <br />* I11 <br />III <br />III <br />WELL CAP <br />DRY WELL <br />.75 " (1.91 cm) <br />RIGID CONDUIT <br />.� VAPOR SENSOR* <br />WIRING INSTRUCTIONS <br />Install four each 18 AWG wires in 1/2 " conduit from X76 console. <br />Connect wires to vapor sensor control module as follows: <br />120 VAC hot — "H" <br />Neutral — "N" <br />Ground — "G" <br />Signal return — Terminal no. 1 <br />Signal hot — Terminal no. 2 <br />*Components supplied with sensor. <br />HYDROCARBON VAPOR QI I N <br />SENSOR FOR DRAWING NO. REV. <br />WELL MONITORING <br />X76C33 0 <br />15 <br />