Hoshizaki KM-630MAF, KM-630MWF, KM-630MRF service manual Contents

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•Please review this manual. It should be read carefully before the icemaker is serviced or maintenance operations 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-630MAF (Air-cooled)

5

2.

KM-630MWF (Water-cooled)

6

3.

KM-630MRF (Remote air-cooled)

7

4.

CONDENSER UNIT, URC-6F

8

II. GENERAL INFORMATION

10

1.

CONSTRUCTION

10

 

[a] KM-630MAF (Air-cooled)

10

 

[b] KM-630MWF (Water-cooled)

11

 

[c] KM-630MRF (Remote air-cooled)

12

2.

CONTROLLER BOARD

13

 

[a] SOLID-STATE CONTROL

13

 

[b] CONTROLLER BOARD

13

 

[c] SEQUENCE

17

 

[d] CONTROLS AND ADJUSTMENTS

20

 

[e] CHECKING CONTROLLER BOARD

23

III. TECHNICAL INFORMATION

25

1.

WATER CIRCUIT AND REFRIGERANT CIRCUIT

25

 

[a] KM-630MAF (Air-cooled)

25

 

[b] KM-630MWF (Water-cooled)

26

 

[c] KM-630MRF (Remote air-cooled)

27

2.

WIRING DIAGRAMS

28

 

[a] KM-630MAF (Air-cooled) and KM-630MWF (Water-cooled)

28

 

[b] KM-630MRF (Remote air-cooled)

29

3.

TIMING CHART

30

4.

PERFORMANCE DATA

32

 

[a] KM-630MAF (Air-cooled)

32

 

[b] KM-630MWF (Water-cooled)

33

 

[c] KM-630MRF (Remote air-cooled)

34

IV. SERVICE DIAGNOSIS

35

1.

NO ICE PRODUCTION

35

2.

EVAPORATOR IS FROZEN UP

38

3.

LOW ICE PRODUCTION

38

4.

ABNORMAL ICE

39

5.

OTHERS

39

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Contents KM-630MAF KM-630MWF KM-630MRF Hoshizaki AMERICA, INC Contents Maintenance KM-630MAF SpecificationsKM-630MWF KM-630MRF Condenser Unit URC-6F Model URC-6F II. General Information Construction KM-630MWF KM-630MRF 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 Important Water Valve opening is limited to 6 minutes Sequence 1st Cycle2nd Cycle and after with pump drain 2nd Cycle and after with no pump drain OFF KM-630MRF Controls and AdjustmentsSetting Time Setting Frequency Checking the Controller Board Page III. Technical Information KM-630MWF KM-630MRF KM-630MAF and KM-630MWF Wiring DiagramsU1GMA0179608 From Defrost Cycle To Defrost Cycle Timing ChartTo Freeze Cycle From Freeze Cycle Performance Data KM-630MWF KM-630MRF Problem Possible Cause Remedy IV. Service Diagnosis No ICE ProductionController Board Problem Possible Cause Remedy LOW ICE Production Evaporator is Frozen UPOthers Abnormal ICEEvacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing Removal and Replacement of Compressor Important Page Removal and Replacement of Expansion Valve Removal and Replacement of DrierRemoval and Replacement of HOT GAS Valve and Line Valve Page Removal and Replacement of Evaporator Important Page Adjustment of Water Regulating Valve WATER-COOLED Model only 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. Maintenance and Cleaning InstructionsPage Cleaning Cleaning Procedure Page Sanitizing Procedure Following Cleaning Procedure Maintenance

KM-630MRF, KM-630MWF, KM-630MAF specifications

The Hoshizaki KM-630MWF, KM-630MAF, and KM-630MRF are advanced commercial ice machines designed to meet the needs of various businesses, including restaurants, bars, and cafes. Renowned for their efficiency, durability, and performance, these models showcase Hoshizaki's dedication to innovation in the foodservice industry.

One of the primary features of the Hoshizaki KM-630 series is the production of crescent-shaped ice. This type of ice is not only aesthetically pleasing but also known for its slow melting properties, making it ideal for keeping beverages cold without diluting them quickly. With a production capacity of up to 617 pounds of ice per day, these machines are built to handle high-demand scenarios efficiently.

The KM-630MWF model is equipped with a water-cooled condenser, making it suitable for environments where air-cooled units might face challenges due to high ambient temperatures. In contrast, the KM-630MAF features an air-cooled condenser which is advantageous for businesses looking to reduce water usage. The KM-630MRF variant utilizes a remote-cooled option, offering flexibility in installation and reducing heat and noise in the kitchen areas.

All three models are built with superior quality stainless steel, ensuring durability and resistance to rust and corrosion. They are designed to be easy to clean, featuring a smooth surface that minimizes dirt and bacteria buildup. Furthermore, Hoshizaki incorporates their advanced EverCheck alert system, providing operators with real-time performance notifications and ensuring reliable operation.

Energy efficiency is a crucial characteristic of the KM-630 series. These machines are designed to comply with industry standards, significantly reducing energy consumption and operating costs. Their highly efficient refrigeration system not only enhances ice production but also extends the lifespan of the machine.

In terms of ease of use, Hoshizaki has designed the KM-630 series to feature a user-friendly control panel. This panel allows for straightforward monitoring and modification of operations, ensuring operators can manage the machine effectively.

Overall, the Hoshizaki KM-630MWF, KM-630MAF, and KM-630MRF ice machines represent a blend of advanced technology, energy efficiency, and robust construction, making them an ideal choice for businesses that demand high-quality ice production. With their innovative features, these machines are poised to elevate the service capabilities of any establishment.
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