Scotsman AFE325 - Manuals

User Operation The AFE325 is an automatic ice flaked machine.All it requires is cool air, clean water, a drain, andan adequate supply of electrical power. The user must regularly sanitize and clean themachine. Component Location & Function Evaporator. This is a vertical cylinder full of water an...

Component Location: Control Box Auger Delay Pressure Control: This pressure switch, connected to the low side of therefrigeration system, controls the auger drivemotor. On-Off switch: This toggle switch shuts off the machine. It is not a complete disconnect. Bin Thermostat: This thermostat turns the...

Refrigeration System Operation The AFE325 uses a forced draft air cooledcondenser, capillary tube and hermeticcompressor. The system uses R-134a as arefrigerant. High pressure, high temperaturerefrigerant is forced thru the condenser where itlooses enough heat to condense. The highpressure liquid re...

Water System Operation: The water system consists of a float valve andreservoir. The water level in the reservoir tank isthe same level as that inside the evaporator.Building water supply flows to the float valve andthe float valve opens to add water to the reservoiras water flows out to the evapora...

Mechanical Operation ELECTRICAL SEQUENCE There are two circuits in the AFE325: one is aseries circuit with several switches connected inseries to the compressor. The other is a parallelbranch of the series circuit, controlling the geardrive motor. • The series circuit begins at the terminal strip in...

Sanitation and Cleaning Maintenance:The water and ice making systems will need to beperiodically sanitized and de-mineralized. The aircooled condenser will also need to be kept clean.Detailed instructions are provided on page 14.Schedule the sanitation, cleaning andde-mineralization on a regular bas...

Maintenance and Cleaning In some areas, the water supply to the ice makerwill contain a high concentration of minerals, andthat will result in an evaporator and augerbecoming coated with these minerals, requiring amore frequent removal than twice per year. If indoubt about the condition of the evapo...

Maintenance: Air Cooled Condenser, Bearings 1. Disconnect electrical power. 2. Remove front louvered panel 3. Wipe the lint off the front of the condenser. Ifneeded, clean the interior of the condenser. 4. Use pressurized air to blow the lint from theinside of the condenser. A vacuum cleaner hosesho...

Maintenance: Component Inspection Auger. The auger is made of stainless steel. It has a polished surface that may be very shinny or dull.Allow the auger to dry, if mineral scale is found onthe auger’s surface, clean off the auger with icemachine cleaner and a scrubbing pad. Remove the water seal and...

Service Diagnosis Problem Possible Cause Probable Correction No ice, nothing is operating. Unit has no power. Restore power. If breaker or fusetripped, check for overloadedcircuit or short circuit. Master switch off Switch unit on. Determine whyswitch was off. No water (water safety switchopen) Rest...

Service Diagnosis PROBLEM POSSIBLE CAUSE PROBABLE CORRECTION Unusual noise Mineral scale in evaporator Clean water system with icemachine cleaner. Auger coupling dry Grease coupling Auger coupling worn Replace coupling and adapterstand. Bearings worn Replace bearings and water seal. Gearmotor loose ...

Removal and Replacement Water System The water system consists of the reservoir andinlet water valve. Reservoir. 1. Shut off the water supply. 2. Remove the top panel. 3. Remove the left side panel. 4. Drain the water reservoir and evaporator. 5. Disconnect inlet and outlet tubes from thereservoir. ...

Water Seal & Bottom Bearing Replacement: 1. Remove old rotating half from the auger. Cleanthe mounting area. 2. Place a bead of food grade sealant (such asScotsman part number 19-0529-01) onto theshoulder of the auger where the rotating half of thewater seal will be installed. 3. Wash the new se...

Refrigeration System This ice machine uses R-134a as the refrigerant.This refrigerant has no chlorine, and thereforerequires polyolester type refrigerant oil. This oilrequires specific service procedures. Service Recommendations: This ice machine has a sealed refrigerationsystem. It must not be tapp...

Gear Reducer Removal 1. Disconnect electrical power. 2. Shut off the water supply. 3. Remove the top, front and side panel. 4. Remove the control box cover. 5. Remove the centrifugal switch cover on the topof the auger drive motor. 6. Disconnect the electrical wires from thecentrifugal switch. 7. Dr...

Gear Reducer Rebuild 1. After the gear reducer has been removed, theinternal components may be inspected and/orreplaced. Remove all bolts holding the two casehalves together. 2. Tap against the roll pins at each end of the gearcases to split them. 3. Pry the case halves apart. 4. Check the internal ...

Motor Cover & Top Rotor Bearing Fan Stator Rotor First Gear Shaft Seals, 2 are used per shaft as shown Woodruff Key Spacer Washer, Use To Adjust Height of Gears to Avoid Rubbing Gear Reducer AFE325 August 1994 Page 23