Scotsman NME1854R Wartungshandbuch

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

FOR THE ELECTRICIANCONFORM TO ALL APPLICABLE CODESConnect electrical power to the wires in thejunction box at the rear of the machine.Check the namepl

NME1854R & FME2404RJanuary 2000Page 11FOR THE INSTALLER: Completed InstallationINSULATEDPRECHARGEDREFRIGERANTTUBINGA typical installation should g

FOR THE INSTALLER: Final Check List1. Is the ice system installedindoors in a location where the airand water temperatures arecontrolled, and where th

START UPPre-Start Inspection1. Remove the front, left, and right side servicepanels.2. Check that any shipping blocks have beenremoved.3. Inspect the

NME1854R & FME2404RJanuary 2000Page 14COMPONENT DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.High Pressure Cut

OPERATION: WaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, divides into two inletlines to each water reservo

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

There are 7 indicator lights on the control board:·WTR-OK (Water OK). Green. Normal =Glowing. Glows when there is water in thereservoir.·PWR-OK (Power

SYSTEM INFORMATIONNME1854R & FME2404RJanuary 2000Page 18Information @ 90oF. air and 70oF. Water:Typical Suction Pressure·35 PSIGTypical Discharge

OPERATION: RefrigerationAt the compressor, refrigerant is compressed intoa high temperature gas. The discharge line directsthis gas to the condenser.

FOR THE INSTALLERThese machines are designed to fitthe following Scotsman storagebins:·B90 and extensions, with bin topKBT18.·BH800 no bin top needed.

OPERATION: RefrigerationLow Condensing TemperatureThe refrigeration system under low condenser airtemperatures is much the same as it is underhigher t

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

NME1854R & FME2404RJanuary 2000Page 221. The bin control uses devices that sense light,therefore they must be kept clean enough so thatthey can “s

BEARING MAINTENANCEThe top bearing in the breaker should also bechecked at least two times per year.Check the breaker bearing by:·removing the ice chu

AUGER MAINTENANCEIn some areas the water supply to the Ice Machinewill have a great deal of minerals in it, and that willresult in an evaporator and a

NME1854R & FME2404RJanuary 2000Page 25SERVICE DIAGNOSIS: ConditionSymptom Possible Cause Probable CorrectionNo ice is made, nothing operates Unit

NME1854R & FME2404RJanuary 2000Page 26SERVICE DIAGNOSIS:Symptom Possible Cause Probable CorrectionUnit makes ice, but very slowly High discharge p

CONTROL SYSTEM DIAGNOSTICSThe control system consists of:·Control Board·Water Sensor·Ice Sensors·High Pressure Cut Out·Low Pressure Cut OutIf the unit

WATER RESERVOIR1. Shut off the water supply to the Ice Machine.2. Remove front panel and reservoir cover.3. Disconnect water inlet tube from reservoir

REMOVAL AND REPLACEMENT: Bearing And BreakerNote: Removal of the auger, water seal, evaporatorand gear motor must begin at the top of theassembly.To R

NME1854R & FME2404RJanuary 2000Page 3REMOTE CONDENSER SPECIFICATIONSOther Required Items:RTE25 Precharged line set, 25’, R-404A - 2 required.Or: R

NME1854R & FME2404RJanuary 2000Page 30Note that the auger has very sharp edges.To Remove the Auger:Turn off the water to the machine, and unclip t

To Remove the Water Seal:(Assuming all steps to remove the auger havebeen performed.)1. The gear motor/evaporator assembly will haveto be exposed (if

NME1854R & FME2404RJanuary 2000Page 32Shut off the water supply before beginning.To Replace the Evaporator:(Assuming all the steps for removal of

NME1854R & FME2404RJanuary 2000Page 33REMOVAL AND REPLACEMENT: Gear motor AssemblyNote: There are two gear motors in each unit.To Remove and Repai

REFRIGERATION SYSTEM SERVICENME1854R & FME2404RJanuary 2000Page 34General: This ice machine uses R-404A refrigerantand polyolester oil. Do NOT use

What to Do Before Calling for ServiceIf the machine is off, not makingice:1. Check the water supply to theice machine. The machine isdesigned to shut

FOR THE INSTALLERInstallation Limitations:This ice system is designed to be installed indoors,in a controlled environment:Min MaxAir Temperature 500F

Remote Condenser LocationUse the following for planning the placement ofthe condenser relative to the ice machineLocation Limits - condenser location

FOR THE INSTALLER: Remote CondenserLocationSelect the best available location, protecting thecondenser from extremes of dirt, dust, and sun.Meet all a

Note: The couplings on the sets of prechargedlines must be installed properly to prevent leaking.Carefully follow the instructions:Initial Connections

NME1854R & FME2404RJanuary 2000Page 8FOR THE INSTALLER: LocationREMOTECONDENSEREXCESSPRECHARGEDTUBING INSIDEBUILDINGICE MACHINESERVICEACCESSSERVIC

FOR THE PLUMBERCONFORM TO ALL APPLICABLE CODESWater InletConnect the ice machine to coldpotable water. Use 3/8" O.D. coppertubing, and connect to