Hoshizaki KM-1300MWH, KM-1300MAH, KM-1300MRH service manual Contents

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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-1300MAH(Air-cooled)

5

2a KM-1300MWH(Water-cooled) Serial No. L00001F to M10155C

6

2b KM-1300MWH (Water-cooled) Serial No. M10156D

7

3.

KM-1300MRH (Remote air-cooled)

8

4.

CONDENSING UNIT, URC-12F

9

II. GENERAL INFORMATION

11

1. CONSTRUCTION

11

 

[a] KM-1300MAH(Air-cooled)

11

 

[b] KM-1300MWH(Water-cooled)

12

 

[c] KM-1300MRH (Remote air-cooled)

13

2. CONTROLLER BOARD

14

 

[a] SOLID-STATE CONTROL

14

 

[b] CONTROLLER BOARD

14

 

[c] SEQUENCE

18

 

[d] CONTROLS AND ADJUSTMENTS

21

 

[e] CHECKING CONTROLLER BOARD

24

III. TECHNICAL INFORMATION

26

1.

WATER CIRCUIT AND REFRIGERANT CIRCUIT

26

 

[a] KM-1300MAH (Air-cooled)

26

 

[b] KM-1300MWH (Water-cooled)

27

 

[c] KM-1300MRH (Remote air-cooled)

28

2.

WIRING DIAGRAMS

29

 

[a] KM-1300MAH(Air-cooled) and KM-1300MWH (Water-cooled)

29

 

[b] KM-1300MRH (Remote air-cooled)

30

3.

TIMING CHART

31

4.

PERFORMANCE DATA

33

 

[a] KM-1300MAH (Air-cooled)

33

 

[b] KM-1300MWH (Water-cooled) Serial No. L00001F to M10155C

34

 

[c] KM-1300MWH (Water-cooled) Serial No. M10156D

35

 

[d] KM-1300MRH (Remote air-cooled)

36

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Contents KM-1300MAH KM-1300MWH KM-1300MRH Hoshizaki AMERICA, INC Contents Maintenance KM-1300MAH Air-cooled Specifications2a. KM-1300MWH Water-cooled 2b. KM-1300MWH Water-cooled Serial No. M10156D KM-1300MRH Remote air-cooled Condensing Unit URC-12F Specifications Model URC-12F II. General Information Construction KM-1300MWH Water-cooled KM-1300MRH Remote air-cooled 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 HOS-001A Board Sequence 1st Cycle 2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain Controls and Adjustments Setting Time Setting Frequency Checking the Controller Board Page III. Technical Information KM-1300MWH Water-cooled KM-1300MRH Remote air-cooled KM-1300MAH Air-cooled and KM-1300MWH Water-cooled Wiring DiagramsCut-out 412 ±21.3 Psig Cut-in 327±21.3 Psig Timing Chart Page Performance Data Serial # L00001F to M10155C KM-1300MWH Water-cooled Serial # M10156D KM-1300MRH Remote air-cooled Problem Possible Cause Remedy IV. Service Diagnosis No ICE ProductionController Board Problem Possible Cause Remedy LOW ICE Production Evaporator is Frozen UPOthers Abnormal ICEService for Refrigerant Lines Refrigerant RecoveryEvacuation and Recharge R-404A Brazing 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 Page Page Removal and Replacement of Thermistor Important 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. Maintenance and Cleaning InstructionsPage Cleaning Cleaning Procedure Sanitizing Procedure Following Cleaning Procedure Page Maintenance
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