ICE MACHINES Q-Model Service Manual

Electrical System Section 64. FREEZESEE SERIAL PLATE FOR VOLTAGEThe water pump starts after the 30-second pre-chill. An even flow ofwater is directed across theevaporator and into each cube cell,where it freezes.After six minutes the water inlet valveis locked out and can not addadditional water.When sufficient ice has formed, thewater flow (not the ice) contacts theice thickness probes. Afterapproximately 7 seconds of continualcontact, a harvest cycle is initiated.NOTE: The ice machine cannotinitiate a harvest cycle until a 6-minute freeze lock has expired.TB35L1HIGH PRESCUTOUTTB32ICE THICKNESS PROBEWATER LEVEL PROBENOT USED(64)(66)(55)(62)(63)BIN SWITCH (65)24135TRANS.1C1F1GFUSE (7A)LOW D.C.VOLTAGEPLUG(67)(66)(68)(69)(62)(20)(61)(60)(58)CLEAN LIGHTWATER LEVELTB37(59)(56)BIN SWITCH LIGHTHARVEST LIGHT/SAFETY LIMIT CODE LIGHTTOGGLE SWITCHICEINTERNAL WORKINGOFF VIEWCLEAN(21) (22)WATERVALVE(77)HARVESTSOLENOID(76)DUMP(57) SOLENOIDTB31 (98)(73)(80)(81)CONTACTORCOIL(99)WATERPUMPTERMINATES ATPIN CONNECTION(74)(75)VIEW FOR WIRING6866676269L2 (N)TB30TB30TB30TB30(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)TB30SV1646-4Figure 6-4.Self-Contained — FreezeTable 6-4. Self-Contained Models4. Freeze (Until 7 Seconds of Water Contact with Ice Thickness Probe)Toggle SwitchICEBin SwitchClosedControl Board Relays#1 Water Pump Closed / ON#2 Water Fill Valve Cycles ON then OFF#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)Closed6-6 Part No. 80-1100-3