Scotsman NME1250 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 DESCRIPTION: Control BoxContactor: A definite purpose contactorconnecting the compressor to the power supply.Circuit Board: Controlling th

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

ELECTRICAL SEQUENCE: "A" ModelsRefer the wiring diagram as needed.If the machine is switched off at the master switch,but is otherwise ready

OPERATIONWaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, goes to the waterreservoir which it enters through

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

CLEANING & SANITIZINGA Scotsman Ice System represents a sizable investment of time and money in any company’s business. Inorder to receive the be

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 installations the water supply to theicemaker will be so concentrated with dissolvedminerals, (such as calcium carbonate) that as iceis made,

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.

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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 compression fitting at

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 Water Seal: (Assuming all steps to remove the auger havebeen performed.)1. The gearmotor/evaporator assembly will have tobe exposed.2. R

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

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

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

Installation Limitations:This ice system is designed to be installed indoors,in a controlled environment:Min. Max.Air Temperature 500F 1000FWater Tem

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

Water Level1. Unplug “water sen” connector from controlboard.2. Plug “water sen” connector from Scotsmantester into circuit board.a. Move “water” sw

FOR THE INSTALLERLocationAfter uncrating and inspection, the unitis ready for installation. It is importantthat the machine be installed in alocation

FOR THE PLUMBERCONFORM TO ALL APPLICABLE CODESWater InletAir Cooled Models: The recommended watersupply is cold water. Use 3/8" O.D. copper tubi

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 INSTALLER: Final Check List1. Is the ice system installed indoors in alocation where the air and watertemperatures are controlled, and whereth

START UPPre-Start Inspection1. Remove the front, and left side service panels.2. Check that the styrofoam shipping blocks underthe gearmotor, on top

COMPONENT DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.Low Pressure Cut Out: "A" models only: Amanual