Hoshizaki KM-501MWH, KM-501MRH, KM-501MAH service manual Cleaning Procedure

Page 52

1.Cleaning Procedure

1)Dilute approximately 16 fl. oz. of the recommended cleaner Hoshizaki "Scale Away" or "LIME-A-WAY" (Economics Laboratory, Inc.) with 3 gal. of water.

2)Remove all ice from the evaporator and the storage bin.

Note: To remove cubes on the evaporator, turn off the power supply and turn it on after 3 minutes. The defrost cycle starts and the cubes will be removed from the evaporator.

3) Turn off the power supply.

 

4)

Remove the front panel and the base

 

 

cover, and then remove the insulation

 

 

panel by lifting up the panel slightly and

 

 

pulling it towards you.

 

5)

Remove one end of the pump tubing (see

 

 

Fig. 4). Drain the water tank. Replace the

Fig. 4

 

pump tubing in its correct position.

6)In bad or severe water conditions, clean the float switch assembly as described below. Otherwise, continue to step 7.

a.Remove the float switch assembly from the mounting bracket and remove the rubber boot from the bottom of the assembly.

b.Remove the retainer rod from the bottom of the float switch assembly, then remove the float. Be careful not to bend the retainer rod excessively when removing it.

c.Wipe down the float switch assembly's housing, shaft, float, and retainer rod with cleaning solution. Wipe the inside of the rubber boot with cleaning solution.

d.Reassemble the float switch assembly and replace it and the rubber boot in their correct positions.

7)Pour the cleaning solution into the water tank.

8)Fully open the cleaning valve on the left side wall of the machine compartment.

9)Move the control switch on the control box to the "WASH" position.

10)Replace the insulation panel and the front panel in their correct positions.

11)Turn on the power supply, and start the washing process.

12)Turn off the power supply after 30 minutes.

13)Remove the front panel.

14)Remove one end of the pump tubing. Drain the water tank. Replace the pump tubing in its correct position.

15)Move the control switch to the "ICE" position.

16)Close the cleaning valve.

Note: The icemaker will not operate unless the cleaning valve is completely closed.

17)Replace the front panel in its correct position.

18)Turn on the power supply to fill the water tank with water.

19)Turn off the power supply after 3 minutes.

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Contents KM-501MAH KM-501MWH KM-501MRH Hoshizaki AMERICA, INC Contents Page Specifications Icemaker KM-501MAH air-cooledKM-501MWH water-cooled Water Cooled CondenserKM-501MRH remote air-cooled Condensing Unit URC-6FSpecifications II. General Information Construction KM-501MWH water-cooled KM-501MRH remote air-cooled Sequence of Operation Cycle Steps Harvest Cycle Freeze Cycle One Minute Control Board Control Board Layout Control Products E Control BoardControl Board Features Maximum Water Supply Period 6 minutesLED Lights and Audible Alarm Safeties Controls and Adjustments Default Dip Switch SettingsHarvest Timer dip switch 1 Pump-Out Frequency Control dip switch 5 Control Board Check Procedure Control Board ReplacementKM-501MAH air-cooled KM-501MWH water-cooled KM-501MRH remote air-cooled Wiring Diagrams KM-501MAH air-cooled and KM-501MWH water-cooledPsig Timing Chart Page Performance Data 245488 482 IV. Service Diagnosis Minute KM Diagnostic Procedure Diagnostic Charts No Ice ProductionProblem Possible Cause Remedy Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Abnormal Ice Low Ice ProductionOther Problem Possible Cause Remedy Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-404ARemoval and Replacement of Compressor BrazingRemoval and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of Hot Gas Valve and Line ValveRemoval and Replacement of Evaporator Adjustment of Water Regulating Valve Water-Cooled Model Only Adjustment Screw CW Higher CCW Lower Top View Removal and Replacement of Thermistor Removal and Replacement of Inlet Water Valve Removal and Replacement of Fan MotorRemoval and Replacement of Pump Motor Removal and Replacement of Spray Tubes VI. Cleaning and Maintenance Instructions Cleaning and Sanitizing ProceduresCleaning Procedure Sanitizing Procedure Following Cleaning Procedure MaintenanceStainless Steel Exterior Preparing the Icemaker for Long Storage Storage Bin and ScoopAir Filters air-cooled models only Condenser air-cooled and remote air-cooled models only
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KM-501MAH, KM-501MWH, KM-501MRH specifications

The Hoshizaki KM-501MWH, KM-501MAH, and KM-501MRH are standout models in the commercial ice machine market, known for their robust performance and innovative technologies. These machines are specially designed to meet the diverse needs of restaurants, bars, and other food service establishments that require a reliable source of high-quality ice.

One of the defining features of the KM-501 series is their high production capacity. Each model can produce up to 500 pounds of ice per day, ensuring that even the busiest establishments can keep up with demand. The ice produced is crystal-clear, with a unique crescent shape that not only looks appealing but also melts slowly, making it ideal for drinks and food presentations.

The KM-501MWH model is equipped with advanced technology that ensures energy efficiency and reduced water usage. It features a powerful compressor and a highly efficient evaporator, which work together to minimize energy consumption while maximizing output. This makes it an environmentally friendly choice, reducing operational costs for businesses.

The KM-501MAH model stands out with its air-cooled condenser system, which allows for optimal performance without the need for extensive cooling water lines. This makes the installation process easier and reduces complexity, enabling businesses to set up their ice machine with minimal hassle. Furthermore, it features a self-cleaning mode that simplifies maintenance, contributing to consistent ice quality over time.

On the other hand, the KM-501MRH is designed for rugged environments. It is constructed with high-quality materials that enhance durability and longevity, making it suitable for outdoor applications or establishments located in warmer climates. The stainless-steel design not only contributes to the machine's robustness but also ensures easy cleaning and resistance to rust and corrosion.

Another key characteristic of the Hoshizaki KM-501 models is their user-friendly control panel. These machines come with intuitive controls that allow operators to easily adjust settings and monitor performance. This feature is particularly useful for staff in busy kitchens, enabling them to focus on service without constant checks on ice production.

Overall, the Hoshizaki KM-501MWH, KM-501MAH, and KM-501MRH offer excellent performance, energy efficiency, and user-friendliness. Their combination of innovative technologies, durable design, and high output capacity make them exceptional choices for any establishment in need of reliable ice production. Whether for a bustling restaurant or a bar serving up cocktails, these machines deliver ice that consistently meets high standards.