ICE MACHINES Q-Model Service Manual

Electrical System Section 66. HARVESTSEE SERIAL PLATE FOR VOLTAGEThe harvest valve(s) remains open,allowing refrigerant gas to warm theevaporator. This causes the cubes toslide, as a sheet, off the evaporatorand into the storage bin.The sliding sheet of cubes swings thewater curtain out, opening the binswitch. This momentary opening andclosing of the bin switch terminatesthe Harvest Cycle and returns the icemachine to the Freeze Cycle (steps3-4).TB35L1HIGH PRESCUTOUTTB32ICE THICKNESS PROBEWATER LEVEL PROBENOT USED(55)24135TRANS.1C1F1GFUSE (7A)LOW D.C.VOLTAGEPLUG(20)(61)(60)(58)CLEAN LIGHTWATER LEVELTB37(59)(56)(21) (22)WATERVALVE(77)HARVESTSOLENOID(76)DUMP(57) SOLENOIDTB31 (98)(73)(80)(81)CONTACTORCOIL(99)WATERPUMPTERMINATES ATPIN CONNECTION(74)(75)L2 (N)TB30TB30TB30TB30(62)BIN SWITCH LIGHT(64)(66)(63)BIN SWITCH (65)(67)(66)(68)(69)(62)HARVEST LIGHT/SAFETY LIMIT CODE LIGHTTOGGLE SWITCHICEINTERNAL WORKINGOFF VIEWCLEANVIEW FOR WIRING6866676269(49)CONTACTORCONTACTS*OVERLOADRCCOMPRESSOR(47)SRUN CAPACITORR R(46) (50)TB30TB35(42)L1TB33(51)(48)(52)(85) (86)(53)TB34PTCR(45)FAN CYCLE CONTROLRUN CAPACITOR**FAN MOTOR(AIR COOLED ONLY)TB30SV1646-6Table 6-6. Self-Contained ModelsFigure 6-6. Self-Contained — Harvest6. Harvest (Until Bin Switch Activation)Toggle SwitchICEBin SwitchClosedControl Board Relays#1 Water Pump Open / OFF#2 Water Fill Valve Open / OFF#3 Harvest Solenoid Closed / ON#4 Water Dump Valve Open / OFF#5 Contactor Coil Closed / ONCompressorONCondenser Fan MotorONSafety Controls (Which could stop ice machine operation)High Pressure Cut-OutClosedMain Fuse (On Control Board)Closed6-8 Part No. 80-1100-3