Emerson Series 386 User Manual

381333–230 C50 Hanover Road, Florham Park, New Jersey 07932–1591 USAFor sales or service call 1 800 800–2726 (ASCO) www.ascopower.comASCO POWER TECHNO

SECTION 4 ADJUSTMENTS4 --- 1Sensor AdjustmentsVo ltage and frequency se nsor pickup and dropout pointsare factory set as specified on the Wiring Diagr

SECTION 5 OPTIONAL FEATURES5 --- 1MOTOR LOAD TRANSFERInphase monitoring logic controls transfer and retransferof motor loads, so that inrush currents

INDEXPrinted in U.S.A.Copyright --- ASCO Power Technologies, L.P. 2007Aauxili ary circuits, 1–2Bbarriers, 1–2Ccablelugs, 1–1preparation, 1–1spacers, 1

Catalog Number IdentificationTypical ASCO 386 catalog no. for solid neutral, 3 pole, 150 amp, 480 V, N–ATS in Type 1 enclosure:D 386 A 3 150 N 1 CPhas

Catalog Number IdentificationTypical ASCO 386 catalog no. for solid neutral, 3 pole, 230 amp, 480 V, N–ATS in Type 1 enclosure:D 386 A 3 230 N 1 CPhas

SECTION 1 INSTALLATION1 --- 1ASCO 386 Non–Automatic Transfer Switches are factorywired and tested. Installation requires skid removal thensecuring the

INSTALLATION (continued)1 --- 2Functional TestThe Functional Test consists of three checks: manualoperation, voltage checks, and electrical operation.

INSTALLATION (continued)1 --- 3Functional Test (continued)2–VoltageChecksFirst check nameplate on the transfer switch for ratedvoltage. It should be t

SECTION 2SEQUENCE OF OPERATION2 --- 1Controller Code 1Refer to Section 5, Optional Accessories for additional control functions.Refer to Wiring Diagra

SECTION 3TESTING & SERVICE3 --- 1PREVENTIVE MAINTENANCEReasonable care in preventive maintenance will insurehigh reliability and long life f or th

TESTING & SERVICE(continued)3 --- 2MANUAL LOAD TRANSFERThis procedure will manually transfer the load if theController is disconnected.Do not manu