Scotsman NME1850 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 DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.High Pressure Cut Out Switch : A manual resetswitch sensi

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

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

ELECTRICAL SEQUENCERefer the wiring diagram as needed.The following description applies to either one ofthe two ice making systems. They operateindepe

OPERATION: WaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, splits into twoseparate lines, flows to a straine

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

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, remove thebi

5. Clean each air cooled condenser. Use a vacuumcleaner or coil cleaner if needed. Do NOT use a wirebrush.A. Remove top panel.C. Pull fan motor assemb

In some areas the water supply to the ice makerwill have a great deal of minerals in it, and that willresult in an evaporator and auger becomingcoated

FOR THE INSTALLERThe FME2400 and theNME1850 are designed to fitthe following Scotsman storagebins:B90 and extensions (with bin top KBT18)BH800 no bin

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

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

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

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

WATER RESERVOIR1. Shut off water supply.2. Remove front panel.3. Remove reservoir cover.4. Disconnect water inlet tube from reservoir inletfitting.5.

REMOVAL AND REPLACEMENT: Bearing And BreakerNote: Removal of the auger, water seal,evaporator and gear motor must begin at the topof the assembly.To R

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 gear motor/evaporator assembly will haveto be exposed.2.

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

REMOVAL AND REPLACEMENT: GearmotorCOVER &OUTPUT GEARASSEMBLYCENTRIFUGALSWITCHAUGER DRIVE MOTORROTOR BEARINGSEALWATER SHEDSEALNote: There are two g

Installation Limitations:This ice system is designed to be installed indoors,in a controlled environment:Min MaxAir Temperature 500F 1000FWater Tempe

REMOVAL AND REPLACEMENTLOCATINGPINSCAP SCREWSFANMOTORWIRERemoving Condenser Fan Motor Assembly1. Remove the top panel.2. Unplug the two fan motor wire

Removal and Replacement: Refrigeration SystemALLENWRENCHTorque Stemto 6-8 ft. lb..Torque Cap to8-12 ft. lb..ACCESSVALVETorque Cap to7-12 ft. lb..

WARNINGThese procedures require the machine to beconnected to the power supply. The voltages ofthe electronic circuit are very low, but HIGHERVOLTAGE

FOR THE INSTALLERLocation:After uncrating and inspection, the unit is ready forinstallation. It is important that the machine beinstalled in a locatio

FOR THE INSTALLER: LocationALLOW ROOMFOR AIRCIRCULATIONAND SERVICEACCESSDO NOT STACK ANYTHING INFRONT OF THE MACHINE(S)NME1850 & FME2400January 19

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

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 and side service panels.2. Check that the styrofoam shipping blocks havebeen removed.3. Inspect the i