Hoshizaki KML "F" SERIES Mechanical BIN Control, Proximity Switch, Explanation of Operation

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4. MECHANICAL BIN CONTROL

(THESE INSTRUCTIONS NOT APPLICABLE TO MODELS WITH THERMOSTAT)

[a]PROXIMITY SWITCH

1)This machine uses a lever-actuated proximity switch (hereafter called “mechanical bin control”) to control the ice level in the storage bin.

[b]EXPLANATION OF OPERATION

1)The startup and shutdown of the ice machine is controlled via the controller board. Dip Switch number seven must be in the ON position for the controller board to re- ceive input from the bin control.

(i)The controller board receives a resistance value input via the red K4 connector from the bin control. A resistor wire harness is connected from the bin control to the controller board.

(ii)When the bin control is activated in the bin full position (pushed to the right), a

15.8KΩ signal will be sent to the control board to shut down the unit.

(iii) When the bin control is in the normal position (bin is not full), a 7.9 KΩ reading is sent to the control board to continue operation.

2)During operation, the controller board will only shut down the machine if a 15.8 KΩ signal is received from the bin control during the first 5 minutes of the freeze cycle.

(i)If ice pushes the lever to the right after the first five minutes of the freeze cycle, the controller board will allow the machine to complete the freeze cycle and the following harvest cycle before shutting down the machine. This will prevent incomplete batches of ice from forming on the evaporator.

(ii)If the sensor detects ice within ½ inch of the face and energizes the bin control relay during the harvest cycle, the controller board will allow the machine to complete the harvest cycle before shutting down the machine. This will ensure that all ice has been removed from the evaporator before shutting the machine down.

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Contents KML F Series KML H Series Hoshizaki AMERICA, INC Contents Wiring Diagrams Removal and Replacement of FAN Motor KML-250MAH SpecificationsKML-250MWH KML-350MAF KML-350MWF KML-350MAH KML-350MWH Beginning serial #L00001J, ending Serial #M20060C KML-350MWH Beginning serial #M30061E KML-450MAF KML-450MWF KML-450MAH KML-450MWH Beginning Serial #L00001D, ending Serial #M10530B KML-450MWH Beginning Serial #M20531D KML-600MAF KML-600MWF KML-600MRF KML-600MAH KML-600MWH Beginning Serial #L00001D, ending Serial #M10115C KML-600MWH Beginning Serial # M10121E KML-600MRH Condenser Unit URC-7F Specifications URC-7F KML-250MAH, KML-350MAF, KML-350MAH, KML-450MAF, KML-450MAH II. General Information ConstructionKML-250MWH, KML-350MWF, KML-350MWH, KML-450MWF, KML-450MWH KML-600MAF, KML-600MAH KML-600MWF, KML-600MWH KML-600MRF, KML-600MRH SOLID-STATE Control Controller BoardController Board For machines with thermostat, there is no connection on K4Page Minute Fill Cycle Beep every 3 sec. = High Evaporator Temperature 127 FHarvest Cycle Freeze 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 Controls and Adjustments For Models with ThermostatFor Models with Mechanical BIN Control Page Setting Time Models with Thermostat Checking the Controller Board Models with Mechanical BIN ControlSwitches Control SwitchService Switch Mechanical BIN Control Proximity SwitchThese Instructions not Applicable to Models with Thermostat Explanation of OperationTroubleshooting Mechanical BIN Control only Water Circuit and Refrigerant Circuit III. Technical InformationPage KML-600MRF, KML-600MRH Wiring Diagrams KML-250MWH Pressure Switch KML-350MWF KML-350MAFKML-350MWH Beginning Serial #M40081G Beginning Serial #M20291G KML-350MAHKML-450MAF and KML-450MWF KML-450MWH Pressure Switch KML-450MWH Beginning Serial #M30711G Beginning Serial #M22771G KML-600MWF KML-600MAFKML 600MRFPage Page Beginning Serial #M20331E Beginning Serial #M20141F KML-600MRHControls and Adjustments Timing ChartWash Performance Data KML-250MWH KML-350MAF KML-350MWF KML-350MAH KML-350MWH Serial #L00001J through M20060C KML-350MWH Beginning Serial #M30061E KML-450MAF KML-450MWF KML-450MAH KML-450MWH Serial #L00001D through M10530B KML-450MWH Beginning Serial #M20531D KML-600MAF KML-600MWF KML-600MRF KML-600MAH KML-600MWH Serial #L00001D through Serial #M10115C KML-600MWH Beginning Serial #M10121E KML-600MRH Problem Possible Cause Remedy IV. Service Diagnosis 1. no ICE ProductionController Board Clean LOW ICE Production Evaporator is Frozen UPOthers Abnormal ICEService for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404ABrazing 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 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 Water Valve Removal and Replacement of Spray Tubes Removal and Replacement of Pump MotorPreparing the Icemaker for Long Storage VI. Maintenance and Cleaning InstructionsPage Cleaning Procedure Page Sanitizing Procedure Following Cleaning Procedure Maintenance

KML "F" SERIES, KML "H" SERIES specifications

The Hoshizaki KML "H" Series and KML "F" Series are state-of-the-art commercial ice machines designed to meet the diverse needs of the foodservice industry. Renowned for their reliability, efficiency, and innovative technology, these ice machines are perfect for restaurants, bars, and hotels seeking high-quality ice production.

The KML "H" Series focuses on producing crescent cubed ice, a preferred choice for many establishments due to its slow melting rate and ability to chill beverages effectively. One of the main features of the "H" Series is the ice-making process, which utilizes advanced technology to ensure a quick production cycle. The machines come with a variety of capacities to suit different business sizes, ranging from small-scale operations to large commercial needs.

The KML "F" Series, on the other hand, is designed to produce flaky ice, which is ideal for display in seafood and salad bars. This series stands out with its unique ice texture, perfect for preserving freshness and enhancing presentation. The "F" Series also boasts high production rates, ensuring a continuous supply of ice even during peak hours.

Both series come equipped with Hoshizaki's exclusive Cascade Ice Making System, which enhances water flow and improves efficiency, leading to lower energy consumption. This is complemented by an exterior that is easy to clean and maintain, reducing labor costs associated with upkeep.

Key characteristics of the KML Series include durable stainless-steel construction, providing longevity and resistance to corrosion. Moreover, both series feature a self-diagnostic control system that alerts users to potential issues before they become significant problems, thereby minimizing downtime.

In addition to their robust design and performance, they also incorporate environmental considerations. Hoshizaki machines are engineered to operate using refrigerants that have a lower impact on the ozone layer, making them compliant with global environmental standards.

Overall, the Hoshizaki KML "H" Series and KML "F" Series stand out in the competitive landscape of commercial ice machines, combining innovative technology, exceptional durability, and user-friendly features to provide a reliable ice-making solution for various foodservice applications.
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