Hoshizaki DKM-500BAH service manual Removal and Replacement of Condenser

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6)Remove the pop rivets securing the evaporator, then lift out the evaporator.

7)Install the new evaporator.

8)Install the new drier.

9)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.

10)Evacuate the system, and charge it with refrigerant. See the nameplate for the required refrigerant charge.

11)Replace the removed parts in the reverse order of which they were removed.

12)Replace the evaporator insulation panels and the outer panels in their correct positions.

13)Turn on the power supply.

H.Removal and Replacement of Condenser

1)Turn off the power supply.

2)Remove the panels, including the rear panel next to the condenser. Be sure to disconnect the dispense switch connector from the control box when removing the front panel.

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

4)Disconnect the fan motor wiring harness from the back of the control box. Remove the four bolts securing the fan motor assembly to the floor of the machine, then remove the assembly.

5)Disconnect the condenser inlet and outlet piping.

6)Remove the screws securing the condenser assembly, then remove the assembly.

7)Remove the shroud from the old condenser and attach it to the new condenser.

8)Install the new condenser.

9)Install the new drier.

10)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.

11)Evacuate the system, and charge it with refrigerant. See the nameplate for the required refrigerant charge.

12)Replace the removed parts in the reverse order of which they were removed.

13)Replace the panels in their correct positions.

14)Turn on the power supply.

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Image 37 Contents
DKM-500BAH Hoshizaki AMERICA, INC Contents Page DKM-500BAH SpecificationsDKM-500BAH II. General Information ConstructionSequence of Operation Cycle DKM-500BAH Sequence Flow Chart and Component OperationControl Board Control Board Layout Control Products E Control BoardControl Board High Temperature Safety Harvest Backup Timer and Freeze TimerLow Water Safety Maximum Water Supply Period 6 minutesPM, SR, DV LED Lights and Audible Alarm SafetiesDefault Dip Switch Settings Controls and AdjustmentsHarvest Control Thermistor Pump-Out Timer dip switch 3 Harvest Timer dip switch 1Freeze Timer dip switch 9 Pump-Out Frequency Control dip switch 5Bin Control Control Board Check Procedure Bin Control TroubleshootingMachine Will Not Start Machine Will Not Shut OffControl Board Replacement SwitchesControl Switch Service SwitchWash CirculateDKM-500BAH Wiring Diagram Timing Chart Page 110 Performance DataIV. Service Diagnosis Minute Diagnostic Procedure Ice Making Diagnostic ChartsNo Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Abnormal Ice Low Ice ProductionDispensing OtherProblem Possible Cause Remedy Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404A Brazing Removal and Replacement of CompressorRemoval and Replacement of Drier Removal and Replacement of Hot Gas Valve Removal and Replacement of Expansion ValveRemoval and Replacement of Evaporator Removal and Replacement of Condenser Removal and Replacement of Fan Motor Removal and Replacement of ThermistorRemoval and Replacement of Pump Motor Removal and Replacement of Inlet Water ValveRemoval and Replacement of Gear Motor Removal and Replacement of Spray TubesRemoval and Replacement of Solenoid Removal and Replacement of Dispense SwitchCleaning Instructions VI. Cleaning and Maintenance InstructionsCleaning Procedure Icemaker Sanitizing Procedure Icemaker Sanitizing Procedure Bin Cleaning Procedure BinPreparing the Icemaker for Long Storage Maintenance InstructionsExterior Panels Air Filters