2020 Sterling Water Temperature Control Unit. Model: TC131, SN: 50H0082, .75 HP motor, Design Press PSI 150, Max Work Press 150 PSI, 1 in. cooling water in, 1/2 in. cooling water out, 1 3/4 in. threaded to and from process. w/ disconnect switch. 480V, 3 Phase, 60 Hz. Overall Dimensions: 34 in. deep x 14 in. wide x 46 in. tall.