Hoshizaki Essential Service Manual for Icemakers - KM-2400SRH3

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Please review this manual. It should be read carefully before the icemaker is serviced or maintenance operations are performed. Only qualified service technicians should service and maintain the icemaker. This manual should be made available to the technician prior to service or maintenance.

 

CONTENTS

 

 

 

PAGE

I. SPECIFICATIONS

5

1.

KM-2400SRF3, KM-2400SRH3 (Remote air-cooled, 3 phase)

5

2.

CONDENSING UNIT, URC-24F

6

II. GENERAL INFORMATION

8

1.

CONSTRUCTION

8

2.

CONTROLLER BOARD

9

 

[a] SOLID-STATE CONTROL

9

 

[b] CONTROLLER BOARD

9

 

[c] SEQUENCE

14

 

[d] CONTROLS AND ADJUSTMENTS

17

 

[e] CHECKING THE CONTROLLER BOARD

20

III. TECHNICAL INFORMATION

22

1.

WATER CIRCUIT AND REFRIGERANT CIRCUIT

22

2.

WIRING DIAGRAM

23

3.

TIMING CHART

24

4.

PERFORMANCE DATA

26

IV. SERVICE DIAGNOSIS

27

1.

NO ICE PRODUCTION

27

2.

EVAPORATOR IS FROZEN UP

30

3.

LOW ICE PRODUCTION

31

4.

ABNORMAL ICE

31

5.

OTHERS

31

V. REMOVAL AND REPLACEMENT OF COMPONENTS

32

1.

SERVICE FOR REFRIGERANT LINES

32

 

[a] REFRIGERANT RECOVERY

32

 

[b] EVACUATION AND RECHARGE

32

2. BRAZING

33

3. REMOVAL AND REPLACEMENT OF COMPRESSOR

34

4. REMOVAL AND REPLACEMENT OF DRIER

35

5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE

36

6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE

 

 

AND LINE VALVE

37

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Contents Stackable Crescent Cuber Hoshizaki AMERICA, INC Contents Maintenance Specifications Condensing UNIT, URC-24F Specifications Model URC-24F II. General Information Construction Controller Board Features of Control Products E Controller BoardController Board SOLID-STATE ControlPage Freeze Cycle Beep every 3 sec. = High Evaporator Temperature 127 FMinute Fill Cycle Harvest CycleControl Products HOSHIZAKI001 Board Control Products HOS-001A Board Sequence 1st Cycle Important Water Valve opening is limited to 6 minutes 2nd Cycle and after with pump drain2nd Cycle and after with no pump drain OFF Controls and AdjustmentsSetting Time Setting Frequency Checking the Controller Board Page III. Technical Information Wiring Diagram Timing Chart Page Performance Data Problem Possible Cause Remedy IV. Service Diagnosis No ICE ProductionController Board Problem Possible Cause Remedy Thermistor Evaporator is Frozen UPLOW ICE Production Abnormal ICEOthers Evacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing Removal and Replacement of Compressor Important Removal and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of HOT GAS Valve and Line Valve Removal and Replacement of Evaporator Important Page Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Pump Motor Removal and Replacement of Water ValveRemoval and Replacement of Spray Tubes Preparing the Icemaker for Long Storage VI. Cleaning and Maintenance Instructions ImportantPage Cleaning Procedure Cleaning Procedure Page Sanitizing Procedure Following Cleaning Procedure Maintenance