Scotsman NSE650 Manual de servicio

INTRODUCTIONTo the owner or user: The service manual you arereading is intended to provide you, and themaintenance or service technician, with theinfo

COMPONENT DESCRIPTIONEvaporator: A refrigerated vertical tube filled withwater and containing a water seal and auger.Auger: A solid stainless steel

ELECTRICAL SEQUENCERefer the wiring diagram as needed.If the machine is switched off at the master switch,but is otherwise ready to go, switching the

OPERATION: WaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, goes to a strainerand then to the water reservoir

OPERATION: RefrigerationBeginning at the compressor, the refrigerant iscompressed into a high temperature gas. Thedischarge line directs this gas to

TECHNICAL CHARACTERISTICSTypical Low Side Pressure••32 - 34 PSIG, less in cooler ambients, greater in hot ambientsTypical Discharge Pressure••200 - 2

MAINTENANCE AND CLEANINGA Scotsman Ice System represents a sizable investment of time and money in any company’s business. Inorder to receive the bes

1. The bin control uses devices that sense light,therefore they must be kept clean enough so thatthey can "see". At least twice a year, remo

In some areas, the water supply to the ice makerwill contain a high concentration of minerals, andthat will result in an evaporator and augerbecoming

SERVICE DIAGNOSIS: Condition - No Ice Being ProducedSTATUS: NOTHING OPERATESA. Check: Voltage to the unit, restore it if there is none. Compare to the

SERVICE DIAGNOSIS: Condition - No Ice Being ProducedSTATUS: NOTHING OPERATESG. Check: The gear motor, if it will not run, the compressor will not run.

FOR THE INSTALLERInstallation Limitations:This ice system is designed to be installed indoors,in a controlled environment:Min. Max.Air Temperature 50

STATUS: GEARMOTOR OPERATES, COMPRESSOR DOES NOTA. Check the compressor relay.The relay is on the circuit board, if it does not supply power to the con

SERVICE DIAGNOSIS: Condition - Low Ice ProductionSTATUS: EVERYTHING IS OPERATINGA. Check the air cooled condenser for dirt. Clean as required. Check

WATER RESERVOIR1. Shut off the water supply to the icemaker.2. Remove front panel and reservoir cover.3. Disconnect water inlet line from float valve.

REMOVAL AND REPLACEMENT: Bearing And BreakerNote: Removal of the auger, water seal,evaporator and gearmotor must begin at the top ofthe assembly.To Re

To Remove the Auger:Turn off the water to the machine, and unclip theevaporator drain hose, pull it down and drain theevaporator into the bin or a con

To Remove the WaterSeal: (Assuming all steps toremove the auger havebeen performed.)1. Thegearmotor/evaporatorassembly will have tobe exposed.2. Remov

To Replace the Evaporator:(Assuming all the steps for removal of the thrustbearing, breaker, auger, and water seal have beenperformed.)1. Recover the

ICE SWEEPAUGEREVAPORATORBREAKERBEARINGWATERSEALRETAININGRINGDRIP PANGASKETWATER SHEDGEARMOTORASSEMBLYSEAL(S)O-RINGCAP SCREWO-RINGWATERSHEDLIP SEALBREA

To Remove and Repair the GearmotorAssembly:(Assuming that the procedures through removal ofthe water seal have been performed.)1. Remove the electrica

REFRIGERATION SERVICE: R-404ATHIS ICE MACHINE USES R-404A (HP62)REFRIGERANT AND POLYOLESTERCOMPRESSOR OIL.DO NOT USE MINERAL OIL IN THISREFRIGERATION

LocationAfter uncrating the machine, and inspecting it forfreight damage, the unit is ready for installation. It is important that the machine be inst

REFRIGERATION SERVICEGeneral Information:Work on the refrigeration system should only bedone when it is certain that the system needsrepair. ••Refrain

CIRCUIT BOARD TESTINGINSTRUCTIONS FOR USING TESTER (Optional,order part no. A33942-001)(These instructions assume that the unit will not run,and prior

CIRCUIT BOARD TESTINGWater Level1. Unplug “water sen” connector from controlboard.2. Plug “water sen” connector from Scotsmantester into circuit boa

FOR THE PLUMBERCONFORM TO ALL APPLICABLE CODESWater InletAir Cooled Models: The recommendedwater supply is clean, cold water. Use3/8" O.D. coppe

FOR THE ELECTRICIANCONFORM TO ALL APPLICABLE CODESThe electrical power to the unit is supplied throughthe junction box at the rear of the machine.Chec

FOR THE INSTALLERFinal Check List1. Is the ice system installed indoors in a locationwhere the air and water temperatures arecontrolled, and where the

START UPPre-Start Inspection1. Remove the front panels.2. Check that the styrofoam shipping blocks havebeen removed.3. Inspect the interior of the ma

COMPONENT DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.High Pressure Cut Out Switch: A manual resetswitch sensing

COMPONENT DESCRIPTION: Control BoxContactor: A definite purpose contactorconnecting the compressor and the remotecondenser fan motor to the power su