An electrical circuit feeds a makeup air unit designated as MUA 1 via a 3/4-inch conduit containing three number 10 conductors and a ground wire, labeled as HSEW-[31,33,35]G-#10'S, 3/4"C. The feed connects into a fused disconnect or starter equipped with an auxiliary seal or interlock labeled FPEN. The layout shows conduit routing originating from a wall line with grid intersections.
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