ICE MACHINES Q-Model Service Manual

Section 6Electrical SystemFreeze SequenceSEE SERIAL PLATE FOR VOLTAGE3. PRE-CHILLL1L2 (N)To pre-chill the evaporator, thecompressor runs for 30 seconds priorto water flow.TB35HIGH PRESCUTOUTTB32(55)2(61)(60)(20)(21) (22)WATERVALVE(77)The water fill valve remains on untilthe water level sensor closes forthree continuous seconds.ICE THICKNESS PROBEWATER LEVEL PROBENOT USED4135TRANS.1C1F1GFUSE (7A)LOW D.C.VOLTAGEPLUG(58)(57)CLEAN LIGHTWATER LEVELTB31TB37(59)HARVESTSOLENOID(56)(73)(76)DUMPSOLENOID(98)(80)(81)CONTACTORCOIL(99)WATERPUMPTERMINATES ATPIN CONNECTION(74)(75)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)Table 6-3. Self-Contained ModelsFAN CYCLE CONTROLRUN CAPACITOR**FAN MOTOR(AIR COOLED ONLY)Figure 6-3. Self-Contained — Pre-Chill3. Pre-Chill (30 Seconds)Toggle SwitchICEBin SwitchClosedControl Board Relays#1 Water Pump Open / OFF#2 Water Fill Valve Closed / ON#3 Harvest Solenoid Open / OFF#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)ClosedTB30SV1646-3Part No. 80-1100-3 6-5