Component Description, Air Cooled Model Shown | Ice-O-Matic MFI

Component Description

MFI Series

Component Description

●Control Box: Contains the electrical controls that operate the machine.

●High Pressure Cut Out Switch: An auto-reset switch sensing the high side refrigeration pressure. It will shut the machine off if the discharge pressure exceeds 450 psig.

●Low Pressure Cut Out Switch: An auto-reset switch sensing the low side refrigeration pressure. It will disconnect power to the circuit board and shut down the machine if the low pressure falls too low.

●Evaporator: A vertical stainless steel tube, refrigerated and water filled. Utilizes a stainless steel auger.

●Compressor: The refrigerant vapor pump.

●Water Reservoir: Float operated, it maintains the water level in the evaporator at a constant level, and it also contains the water level sensor.

●Water Level Sensor: Senses if there is water in the reservoir to make ice out of. Will shut the ice machine off if there is no water in the reservoir.

●Ice Discharge Chute: Directs the ice produced by the evaporator into the storage bin.

●Ice Level Sensor: An “electronic eye”, it senses the presence of ice in the bottom of the discharge chute.

●Gear Motor: An oil filled, speed reduction gearbox, driving the auger.

●Drain Tube: When uncapped and lowered, drains the evaporator.

●Condenser: Air or water cooled, where the heat removed in ice making is discharged.

●Expansion Valve: The refrigerant metering device.

Air Cooled Model Shown

Control Box

Condenser

Expansion Valve

	Water Reservoir

High
Pressure
Cut Out	Drain Tube
	Drain Tube

Compressor

Gear Motor

Ice Discharge Chute

Ice Level Sensor

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Ice-O-Matic installation manual Component Description, Air Cooled Model Shown, MFI Series, Page

Contents

SERVICE AND INSTALLATION MANUAL MFI Series Ice-O-Matic11100 East 45th Ave Denver, ColoradoPage MFI Series IntroductionKeep this manual for future reference Page Table Of Contents Table of ContentsMFI Series Page Freight Claim Procedure Inspect PromptlyVisible Loss or Damage Concealed Loss or Damage MFI Series WarrantyPage For the Installer Installation GuidelinesElectrical Specifications Adjustments MFI Series For The InstallerPage Ice Machine Specifications Bin ApplicationFor the Installer MFI Series Location Storage BinIce machine Water Limitations For the Installer MFI SeriesAllow 6 “Clearance for Air Circulation Page For the Plumber Water InletWATER COOLED MODELS AIR COOLED MODELS For the Electrician Electrical ConnectionsWater Cooled Models Air Cooled Models Final Check List For the InstallerMFI Series Page Start Up Pre-StartInspectionStart Up MFI Series Component Description Air Cooled Model ShownMFI Series Page MFI Series Component DescriptionPotential Relay The compressor start relay Page MFI Series Component DescriptionPage Ice Sweep Bearing Breaker/Divider Auger To Reset Electrical SequenceElectrical Sequence Shut Down Operation Water Water SystemMFI Series Page High Pressure Cut Out- Automatic Reset Low Pressure Cut Out- Automatic ResetOperation Performance Typical Low Side Pressure Sanitizing and Cleaning ICE MAKING SYSTEM In place cleaningscheduled at a minimum of twice a year KEEP OUT OF THE REACH OF CHILDREN Bearing Maintenance Bearing MaintenanceNote Left Hand Threads MFI Series Sensor Maintenance Bin Control SensorWater Sensor MFI Series Maintenance Air Cooled Clean the air cooled condenserMFI Series Page Auger Maintenance 1. Disconnect electrical power to the ice machineAuger 2. Turn off the water supply to the ice machine Service Diagnosis SymptomPossible Cause Probable Correction Service Diagnosis SymptomMFI Series Possible Cause Control System Diagnostics 4.High pressure cut out checkMFI Series Page R&R- Water Reservoir, Bin Control Water ReservoirBin Controls Ice Level Sensors MFI Series To Remove the Breaker Bearing Assembly R&R-Bearingand BreakerMFI Series Page R&R-Auger To Remove the AugerMFI Series Page R&R-WaterSeal To Remove the Water SealRemoval of the Water Seal To Replace the Water Seal R&R-Evaporator To Replace the EvaporatorTo Reassemble the Evaporator and Auger MFI Series To Remove and Repair the Gear Motor Assembly R&R-GearMotorTo Check the Gear Motor To Inspect the Gear Motor To Remove the Condenser Fan Motor Assembly R&R-FanBlade and MotorMFI Series Page Refrigeration System Service ServiceRefrigeration Instructions for Liquid Charging R404A MFI0500 Wiring Diagram Wiring Diagram MFI0500 Air, MFI0500 WaterMFI Series Page MFI Series MFI0800 Wiring DiagramPage MFI0805/1255 Wiring Diagram Wiring Diagram MFI0805, MFI1255 AirMFI Series Page MFI1256 Wiring Diagram Wiring Diagram MFI1256 AirMFI Series Page Service History What to Do Before Calling for ServiceMFI Series Page