Scotsman FME804R Service Manual

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 the electrical power to the unit to the wiresin the junction box at the rear of the machine.

NME654R & FME804RJanuary 2000Page 11FOR THE INSTALLER: Completed InstallationROOFCUT-AWAYINSULATEDPRECHARGEDREFRIGERANTTUBINGA typical installatio

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

INITIAL START UPPre-Start Inspection1. Remove the front, left, and right side servicepanels.2. Check that any styrofoam shipping blocks havebeen remov

COMPONENT DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.High Pressure Cut Out: An automatic resetswitch sensing the

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

OPERATION: WaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, goes to the waterreservoir which it enters throug

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

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

FOR THE INSTALLERThese machines are designed to fit thefollowing Scotsman storage bins:·SB480 and extensions (with bin topKBT18)·HTB555 or BH550 using

OPERATION: RefrigerationPUMP DOWNDuring the pump down cycle (usually initiated bythe circuit board de-energizing the liquid line valve)the discharge g

CLEANING & SANITIZINGA 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 thebin

BEARING MAINTENANCEThe bearing in the breaker should also be checkedat least two times per year.A. Check the bearing by:·removing the ice chute cover·

AUGER AND OTHER MAINTENANCEIn some areas the water supply to the icemaker willhave a great deal of minerals in it, and that willresult in an evaporato

NME654R & FME804RJanuary 2000Page 25OPERATING CHARACTERISTICSTypical Low Side Pressure·28 - 32 PSIGTypical Discharge Side Pressure·240 PSIG, will

NME654R & FME804RJanuary 2000Page 26SERVICE DIAGNOSIS:Symptom Possible Cause Probable CorrectionNo ice is made, nothing operates Unit off due to n

NME654R & FME804RJanuary 2000Page 27No ice, auger motor is turning Compressor contactor coil is open Check / replace contactorCompressor will not

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 icemaker.2. Remove front panel and reservoir cover.3. To remove float only, disconnect water inletc

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

REMOVAL AND REPLACEMENT: Bearing And BreakerNote: Removal of the auger, water seal, evaporatorand gearmotor must begin at the top of theassembly.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 pulled away f

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

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

NME654R & FME804RJanuary 2000Page 35CHARGINGCYLINDER orSCALERECEIVERSERVICE PORTREFRIGERATION SERVICEGeneral Information:Work on the refrigeration

NME654R & FME804RJanuary 2000Page 4REMOTE CONDENSER SPECIFICATIONSRTE25 Precharged line set, 25’, R-404ARTE40. Precharged line set, 40’, R-404AICE

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

FOR THE INSTALLER: Remote CondenserLocationLimited to a 40 foot or a 25 foot length ofprecharged refrigerant tubing connecting the icemachine to the r

Initial Connections:1. Remove the protector caps and plugs. Wipe theseats and threaded surfaces with a clean cloth tobe certain that no foreign matter

NME654R & FME804RJanuary 2000Page 8FOR THE INSTALLER: LocationTYPICAL INSTALLATIONREMOTECONDENSEREXCESSPRECHARGEDTUBING INSIDEBUILDINGIce MachineS

FOR THE PLUMBERCONFORM TO ALL APPLICABLE CODESWater InletThe recommended water supply iscold water. Use 3/8" O.D. coppertubing, connect to the 3/