Hoshizaki KM-320MAH, KM-320MWH service manual Controls and Adjustments

Page 16

4. Controls and Adjustments

The dip switch is factory-adjusted to the following positions:

Dip Switch No.

1

2

3

4

5

6

7

8

9

10

 

 

 

 

 

 

 

 

 

 

 

KM-320MAH

OFF

OFF

OFF

ON

ON

ON

OFF

OFF

OFF

OFF

 

 

 

 

 

 

 

 

 

 

 

KM-320MWH

OFF

OFF

OFF

ON

ON

ON

OFF

OFF

OFF

OFF

 

 

 

 

 

 

 

 

 

 

 

Switch Nos. 1 and 2:

Used for adjustment of the defrost timer.

The defrost timer starts counting when the thermistor reads a certain temperature at the evaporator outlet.

Switch Nos. 3 and 4:

Used for adjustment of the drain timer.

When a freeze cycle is completed, the pump motor stops, and the icemaker resumes operation in 2 seconds. Then the pump motor drains the water tank for the time determined by the drain timer. The drain timer also determines the time to restrain completion of a defrost cycle, i.e. the minimum defrost time.

Switch Nos. 5 and 6:

Used for adjustment of the drain counter.

The pump motor drains the water tank at the frequency determined by the drain counter.

Switch Nos. 7 and 8:

Used only for checking the controller board. Usually set in OFF position.

Switch Nos. 9 and 10:

Used for adjustment of freeze timer. The freeze timer determines maximum freeze cycle time. Upon termination of freeze timer, machine initiates the harvest cycle. After 2 consecutive timer terminations, machine will shut down, possibly indicating a problem.

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Contents KM-320MAH KM-320MWH Hoshizaki AMERICA, INC Contents Page Specifications KM-320MAH air-cooled Approximate Storage Capacity Electric & Water ConsumptionKM-320MWH water-cooled Water Cooled CondenserII. General Information Construction KM-320MAH air-cooledKM-320MWH water-cooled Features of Control Products E Controller Board Controller BoardSolid-State Control Controller BoardHigh Temperature Safety 127 ± 7F 53 ± 4C LED Control 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 Defrost Control Drain Timer Freeze Timer Checking the Controller BoardPage KM-320MAH KM-320MWH Wiring Diagram KM-320MAH, KM-320MWHTiming Chart Page Performance Data 117352 IV. Service Diagnosis No Ice Production Problem Possible Cause RemedyProblem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Problem Possible Cause Remedy Abnormal Ice Low Ice ProductionOther Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-404ABrazing Removal and Replacement of Compressor Removal and Replacement of Drier Removal and Replacement of Expansion ValveRemoval and Replacement of Hot Gas Valve and Line Valve Removal and Replacement of Evaporator Removal and Replacement of Thermistor Removal and Replacement of Fan Motor Removal and Replacement of Water ValveRemoval and Replacement of Pump Motor Removal and Replacement of Spray TubesPage Adjustment Of Water Regulating Valve Water-Cooled Model Only VI. Cleaning and Maintenance Instructions Preparing the Icemaker for Long StoragePage Cleaning and Sanitizing Instructions Cleaning Procedure Sanitizing Procedure Following Cleaning Procedure Maintenance Stainless Steel ExteriorStorage Bin and Scoop Condenser except water-cooled model
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KM-320MWH, KM-320MAH specifications

Hoshizaki, a leading manufacturer in the food service equipment sector, offers a diverse range of ice-making machines that excel in efficiency, durability, and innovative technology. Among the notable models are the Hoshizaki MWH KM-515MAH, MWH(-M), MRH KM-901MAH, MRH KM-600MAH, KM-650MAH, and KM-320MAH. Each model brings unique features designed to meet varying commercial ice production needs.

The Hoshizaki MWH KM-515MAH is particularly recognized for its high ice production capacity, generating up to 515 pounds of ice per day. This model incorporates advanced technology that ensures consistent ice quality and purity. The MWH(-M) variant often includes modifications to suit specific operational environments, ensuring reliability in diverse settings.

Similarly, the MRH KM-901MAH stands out with its ability to produce a staggering 901 pounds of ice per day, making it ideal for high-volume establishments. This model is equipped with Hoshizaki's unique "cubelet" technology, producing a soft, chewable ice perfect for beverages. It also features a robust stainless steel construction, enhancing its durability and resistance to corrosion.

The MRH KM-600MAH offers 600 pounds of daily ice output, while the KM-650MAH enhances that capacity to 650 pounds. Both machines prioritize energy efficiency and come with built-in energy-saving modes. These models feature advanced ice sensing technology that monitors production levels to optimize energy consumption and reduce waste.

On the other hand, the KM-320MAH is designed for smaller establishments, with a daily ice production rate of 320 pounds. Despite its smaller footprint, it maintains high production efficiency and is equipped with features like a built-in storage bin, saving space while ensuring a reliable ice supply.

Across these models, Hoshizaki employs various technologies, including air-cooled and water-cooled systems, offering flexibility depending on installation requirements. The ice machines are designed with user-friendly controls and features like self-cleaning capabilities, making maintenance straightforward and less time-consuming.

In summary, Hoshizaki's ice machines, including the MWH KM-515MAH, MRH KM-901MAH, and others, deliver exceptional ice production, durability, and efficiency tailored to meet the demands of any commercial kitchen or service establishment. With a commitment to quality, Hoshizaki continues to be a trusted choice for businesses needing reliable ice-making solutions.