Hoshizaki KM-630MRF, KM-630MAF, KM-630MWF service manual Checking the Controller Board

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5) Freeze Timer

CAUTION

Adjust to proper specification, or the unit may not operate correctly.

Two new dip switches numbered 9 and 10 have been added to the improved “E” board to better prevent possible freeze ups. These settings come factory set to the default setting of 60 min. (OFF, OFF). Check the adjustment chart published in the Tech Specs for proper settings. If the old board does not have these two dip switches, (only 8 in- stead of 10), leave setting as OFF, OFF.

SETTING

 

TIME

Dip Switch

Dip Switch

 

No. 9

 

No. 10

 

OFF

 

OFF

60 min.

ON

 

OFF

70 min.

OFF

 

ON

50 min.

ON

 

ON

60 min.

6) Bin Control

CAUTION

When the ambient temperature is below 45°F, the Bin Control Thermostat operates to stop the icemaker even if the Ice Storage Bin is empty. When the Thermostat is set in the prohibited range, the icemaker operates continuously even if the Ice Storage Bin is filled with ice. Setting in the prohibited range might cause severe damage to the icemaker resulting in failure.

No adjustment is required under normal use, as the Bin Control is factory-adjusted. Adjust it, if necessary, so that the icemaker stops automatically within 10 seconds after ice contacts the Bin Control Thermostat Bulb.

[e] CHECKING THE CONTROLLER BOARD

1)Visually check the sequence with the icemaker operating.

2)Visually check the Controller Board by using the following procedures.

(i)Adjust the Defrost Timer to minimum position. Disconnect the Thermistor from the Controller Board.

Connect a 1.5 kW - 3.5 kW resistor to the Connector K3 (pins #1 and #2), and energize the unit.

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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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