Manitowoc MARINE MODEL S1800 Service Manual

Also see for MARINE MODEL S1800: Manual Use and care manual Installation, use & care manual Installation, use & care manual

Contents

Manitowoc MARINE MODEL S1800 Service Manual Manual pdf 40 page image

Electrical System Section 66-2 Part Number 80-1634-3Wiring Diagram Sequence ofOperationSELF-CONTAINED MODELSInitial Start-Up or Start-Up AfterAutomatic Shut-Off1. WATER PURGEBefore the compressor starts, thewater pump and water dumpsolenoid are energized for 45seconds to purge old water from theice machine. This ensures that theice-making cycle starts with freshwater.The harvest valve(s) is alsoenergized during the water purge. Inthe case of an initial refrigerationstart-up or auto shut-off, it stays onfor an additional5 seconds (50 seconds total).The air compressor energizes for thelast 10 seconds of the cycle.Self-Contained — Water PurgeTable 6-1. Self-Contained Models1. Water Purge (45 Seconds)Toggle Switch ICEBin Switch ClosedControl Board Relays#1 Water Pump ON#2 Harvest Valve (Left) ON#3 Harvest Valve (Right) ON (When Used)#4 Air Compressor 35 sec. OFF / 10 sec. ON#5 Water Inlet Valve OFF#6 Water Dump Valve ON#7 Contactor Coil Open / OFF#7A Compressor OFF#7B Condenser Fan Motor OFFSafety Controls (Which could stop ice machine operation)High Pressure Cut-Out ClosedMain Fuse (On Control Board) ClosedSV3137-2(89) (55)(88)HighPressureCutoutControl BoardL1Ground(2)(6)(5)(1)(7)(4)L2 or NWater ValveHarvest Valve(20) (21)(22)(61)Dump ValveWater Pump(60)(76) (81)(75)(77)(80)(57) (98)(58)(59)(42)Ice ThicknessProbeWater Level ProbeTrans.Fuse (7a)L2Terminates atPin Connection(99)Contactor Coil(56)Air Compressor(26)(25)Low DCVoltagePlugBin SwitchCleanOFFICE(2)(1)(6)(8)(9) (74)CompressorRun Capacitor(Red)(Yellow)Fan MotorPTCR(45)(46)(50)(51) (85)Overload(Black)(86)Fan CycleControlL1ContactorContactsRun Capacitor