Ice-O-Matic MFI Series, Component Description, Potential Relay The compressor start relay

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MFI Series

Component Description

●Contactor: A definite purpose contactor connecting the compressor and the fan motor to the power supply.

●Circuit Board: Controls the operation of the ice machine using input from the sensors and pressure controls. Switches loads on and off thru relays. (Reference Photo Below)

●Potential Relay: The compressor start relay.

●Mode (ON/OFF) Switch: Manual control for the machine.

Control Board

Water OK Light

Power Light

Service Light

Freeze Light

Bin Full Light

LED1

Compressor Relay

LED3

Auger Relay

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Contents Ice-O-Matic SERVICE AND INSTALLATION MANUAL MFI Series11100 East 45th Ave Denver, ColoradoPage Introduction MFI SeriesKeep this manual for future reference PageTable of Contents Table Of ContentsMFI Series PageInspect Promptly Freight Claim ProcedureVisible Loss or Damage Concealed Loss or DamagePage WarrantyMFI Series Installation Guidelines For the InstallerElectrical Specifications AdjustmentsPage For The InstallerMFI Series Bin Application Ice Machine SpecificationsFor the Installer MFI SeriesStorage Bin LocationIce machine Water LimitationsMFI Series For the InstallerAllow 6 “Clearance for Air Circulation PageWater Inlet For the PlumberWATER COOLED MODELS AIR COOLED MODELSElectrical Connections For the ElectricianWater Cooled Models Air Cooled ModelsFor the Installer Final Check ListMFI Series PagePre-StartInspection Start UpStart Up MFI SeriesAir Cooled Model Shown Component DescriptionMFI Series PageComponent Description MFI SeriesPotential Relay The compressor start relay PageComponent Description MFI SeriesPage Ice Sweep Bearing Breaker/Divider AugerElectrical Sequence To ResetElectrical Sequence Shut DownWater System Operation WaterMFI Series PageLow Pressure Cut Out- Automatic Reset High Pressure Cut Out- Automatic ResetOperation Performance Typical Low Side PressureICE MAKING SYSTEM In place cleaning Sanitizing and Cleaningscheduled at a minimum of twice a year KEEP OUT OF THE REACH OF CHILDRENBearing Maintenance Bearing MaintenanceNote Left Hand Threads MFI SeriesBin Control Sensor Sensor MaintenanceWater Sensor MFI SeriesClean the air cooled condenser Maintenance Air CooledMFI Series Page1. Disconnect electrical power to the ice machine Auger MaintenanceAuger 2. Turn off the water supply to the ice machineSymptom Service DiagnosisPossible Cause Probable CorrectionSymptom Service DiagnosisMFI Series Possible Cause4.High pressure cut out check Control System DiagnosticsMFI Series PageWater Reservoir R&R- Water Reservoir, Bin ControlBin Controls Ice Level Sensors MFI SeriesR&R-Bearingand Breaker To Remove the Breaker Bearing AssemblyMFI Series PageTo Remove the Auger R&R-AugerMFI Series PageTo Remove the Water Seal R&R-WaterSealRemoval of the Water Seal To Replace the Water SealTo Replace the Evaporator R&R-EvaporatorTo Reassemble the Evaporator and Auger MFI SeriesR&R-GearMotor To Remove and Repair the Gear Motor AssemblyTo Check the Gear Motor To Inspect the Gear MotorR&R-FanBlade and Motor To Remove the Condenser Fan Motor AssemblyMFI Series PageService Refrigeration System ServiceRefrigeration Instructions for Liquid Charging R404AWiring Diagram MFI0500 Air, MFI0500 Water MFI0500 Wiring DiagramMFI Series PagePage MFI0800 Wiring DiagramMFI Series Wiring Diagram MFI0805, MFI1255 Air MFI0805/1255 Wiring DiagramMFI Series PageWiring Diagram MFI1256 Air MFI1256 Wiring DiagramMFI Series PageWhat to Do Before Calling for Service Service HistoryMFI Series Page