Hoshizaki DKM-500BAH service manual

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III. Technical Information

19

A. Water Circuit and Refrigeration Circuit

19

B. Wiring Diagram

20

C. Timing Chart

21

D. Performance Data

23

IV. Service Diagnosis

24

A. 10-Minute Diagnostic Procedure

24

B. Diagnostic Charts

25

1. Ice Making

25

a) No Ice Production

25

b) Evaporator is Frozen Up

28

c) Low Ice Production

29

d) Abnormal Ice

29

e) Other

30

2. Dispensing

30

V. Removal and Replacement of Components

32

A. Service for Refrigerant Lines

32

1. Refrigerant Recovery

32

2. Evacuation and Recharge (R-404A)

32

B. Brazing

33

C. Removal and Replacement of Compressor

33

D. Removal and Replacement of Drier

34

E. Removal and Replacement of Expansion Valve

35

F. Removal and Replacement of Hot Gas Valve

35

G. Removal and Replacement of Evaporator

36

H. Removal and Replacement of Condenser

37

I. Removal and Replacement of Thermistor

38

J. Removal and Replacement of Fan Motor

38

K. Removal and Replacement of Inlet Water Valve

39

L. Removal and Replacement of Pump Motor

39

M. Removal and Replacement of Spray Tubes

40

N. Removal and Replacement of Gear Motor

40

O. Removal and Replacement of Dispense Switch

41

P. Removal and Replacement of Solenoid

41

VI. Cleaning and Maintenance Instructions

42

A. Cleaning Instructions

42

1. Cleaning Procedure – Icemaker

42

2. Sanitizing Procedure – Icemaker

43

3. Cleaning Procedure – Bin

44

4. Sanitizing Procedure – Bin

44

B. Maintenance Instructions

45

1. Exterior Panels

45

2. Air Filters

45

3. Condenser

45

C. Preparing the Icemaker for Long Storage

45

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Contents DKM-500BAH Hoshizaki AMERICA, INC Contents Page Specifications DKM-500BAHII. General Information Construction DKM-500BAHSequence of Operation DKM-500BAH Sequence Flow Chart and Component Operation CycleControl Board Control Board Layout Control Products E Control BoardControl Board Harvest Backup Timer and Freeze Timer High Temperature SafetyLow Water Safety Maximum Water Supply Period 6 minutesLED Lights and Audible Alarm Safeties PM, SR, DVDefault Dip Switch Settings Controls and AdjustmentsHarvest Control Thermistor Harvest Timer dip switch 1 Pump-Out Timer dip switch 3Freeze Timer dip switch 9 Pump-Out Frequency Control dip switch 5Bin Control Bin Control Troubleshooting Control Board Check ProcedureMachine Will Not Start Machine Will Not Shut OffSwitches Control Board ReplacementControl Switch Service SwitchCirculate WashDKM-500BAH Wiring Diagram Timing Chart Page Performance Data 110IV. Service Diagnosis Minute Diagnostic Procedure Ice Making Diagnostic ChartsNo Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Low Ice Production Abnormal IceOther DispensingProblem Possible Cause Remedy Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-404ARemoval and Replacement of Compressor BrazingRemoval and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of Hot Gas ValveRemoval and Replacement of Evaporator Removal and Replacement of Condenser Removal and Replacement of Thermistor Removal and Replacement of Fan MotorRemoval and Replacement of Inlet Water Valve Removal and Replacement of Pump MotorRemoval and Replacement of Spray Tubes Removal and Replacement of Gear MotorRemoval and Replacement of Dispense Switch Removal and Replacement of SolenoidCleaning Instructions VI. Cleaning and Maintenance InstructionsCleaning Procedure Icemaker Sanitizing Procedure Icemaker Cleaning Procedure Bin Sanitizing Procedure BinMaintenance Instructions Preparing the Icemaker for Long StorageExterior Panels Air Filters

DKM-500BAH specifications

The Hoshizaki DKM-500BAH is a high-performing ice maker renowned in the food service industry for its reliability and efficiency. This unit excels in producing crescent-style ice, which is highly sought after for its ability to chill beverages effectively while minimizing dilution. The Hoshizaki reputation for quality is well-reflected in the DKM-500BAH, making it a popular choice in restaurants, bars, and other establishments that demand high ice production capacity.

One of the standout features of the DKM-500BAH is its impressive ice production capability. This model has the capacity to produce up to 500 pounds of ice per day, ensuring that businesses with high-volume demands can meet their needs without interruption. The unit operates on a refrigerant system designed for optimal energy efficiency, which can lower operating costs and contribute to sustainability goals.

The DKM-500BAH utilizes advanced technology, including Hoshizaki's patented ice-making mechanism. This system features a stainless steel evaporator that enhances durability and ice quality. The crescent-shaped ice it produces has a slower melt rate, making it perfect for restaurants and bars that focus on customer experience. Additionally, the unit is equipped with a cycle control that ensures ice is produced consistently.

Another critical aspect of the DKM-500BAH is its user-friendly design. It features a front-facing control panel that allows for easy monitoring and adjustment of settings. A built-in diagnostics system alerts users to potential issues, enabling prompt maintenance and reducing downtime. The removable air filter is another convenience, making it simple to clean and maintain the unit’s efficiency.

Moreover, the construction of the DKM-500BAH is noteworthy. It features a corrosion-resistant stainless steel exterior that ensures longevity and maintains hygiene standards. The unit also has an insulated storage bin that holds up to 250 pounds of ice, making it an efficient solution for busy settings.

In summary, the Hoshizaki DKM-500BAH is a robust ice maker that combines high production capacity, advanced technology, and user-friendly features. Its build quality and efficient performance position it as a leader in the commercial ice-making market, making it an ideal investment for establishments requiring reliable ice supply.