Hoshizaki FS-1022MLH-C service manual Removal and Replacement of Evaporator

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13)Move the control switch to the "ICE" position.

14)Plug the unit into the electrical outlet, then move the power switch to the "ON" position to start the automatic icemaking process.

15)Replace the front panel in its correct position.

5. Removal and Replacement of Evaporator

CAUTION

1.Always install a new drier every time the sealed refrigeration system is opened.

2.Do not replace the drier until after all other repair or replacement has been made. Install the new drier with the arrow on the drier in the direction of the refrigerant flow.

3.When brazing, protect the drier by using a wet cloth to prevent the drier from overheating. Do not allow the drier to exceed 250°F (121°C).

1)Remove the front panel, then move the power switch to the "OFF" position.

2)Move the control switch to the "DRAIN" position.

3)Move the power switch to the "ON" position.

4)Allow the water to drain from the evaporator.

5)Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet.

6)Remove the top and side panels.

7)Recover the refrigerant and store it in an approved container.

8)Remove the strap connecting the spout to the chute assembly, then remove the spout.

9)Disconnect the water hoses.

10)Remove the extruding head seal bolts. Using the cutter, lift out the auger assembly.

11)Remove the insulation and the expansion valve bulb on the suction line.

12)Disconnect the inlet and outlet tubing.

13)Remove the socket head cap screws and split lock washers securing the evaporator to the lower housing.

14)Lift off the evaporator.

15)Inspect the mechanical seal and O-ring prior to installing the new evaporator. The mechanical seal consists of two parts. One moves along with the auger, and the other is fixed on the lower housing. If the contact surfaces of these two parts are worn, cracked, or scratched, the mechanical seal may cause water leaks and should be replaced. Instructions for removing the mechanical seal and lower housing are located later in this procedure.

16)Make sure the lower mechanical seal is in place, then place the evaporator in position. Secure the evaporator to the lower housing using the socket head cap screws and split lock washers.

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Contents SRC-10H Hoshizaki AMERICA, INC Contents Page Unit Important Safety InformationSerious injury Indicates important information about the use and careFor SRC FS-1022MLH-C Specifications IcemakerSRC-10H Condensing UnitIcemaker FS-1022MLH-C II. General Information ConstructionCondensing Unit a SRC-10H Icemaking Unit Sequence Cycles and Shutdown Sequence of OperationDrain Cycle Shutdown Cycle Sequence Flow Chart Control Board Sequence Flow Chart FS-1022MLH-C/SRC-10HControl Board Control Board Control Board LayoutEnergized Components Min Max LED Lights and Audible Alarm SafetiesNo. of Beeps Type of Alarm Reset Options Every 5 sec Sequence StepSeconds 1.6 minutes Factory Default Controls and AdjustmentsS1 Dip Switch Setting Infrared Sensor Shutdown Delay S1 Dip Switch Setting Dispense Time S1 Dip Switch Setting Drain Timer IntervalBin Control S1 Dip Switch MechanicalBackup Shutdown DelayIII Wiring Diagrams High-Pressure Switch Control Low-Pressure SwitchSafety Low-Pressure Switch Manual Reset FS-1022MLH-C with SRC-10H Performance DataIce Production Check IV. Service DiagnosisDiagnostic Procedure Page Page Page Control Board Check 5VDC Page Infrared Sensor Check Bin Control CheckMechanical Backup Bin Control Check Page Float Switch Cleaning Float Switch Check and CleaningFloat Switch Check Page No Ice Production Possible Cause Startup Diagnostic ChartsNo Ice Production No Ice Production Possible Cause Shutdown Service for Refrigerant Lines Removal and Replacement of ComponentsEvacuation and Recharge R-404A Refrigerant RecoveryBrazing Component Important Notes for Component ReplacementEvaporator Assembly Components. See Fig Evaporator Assembly Upper Bearing Wear Check Removal and Replacement of CutterRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Page Removal and Replacement of Gear Motor 6b. Lower HousingPage Cleaning Procedure VI. Cleaning and MaintenanceCleaning and Sanitizing Instructions Cleaning SolutionFloat Switch Assembly Reservoir Cover Sanitizing Procedure Initial Sanitizing SolutionSanitizing Procedure Final Maintenance Frequency Area Task Maintenance ScheduleDrain the evaporator Preparing the Icemaker for Long StorageRemove the water from the icemaker water supply line
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