Hoshizaki KMD-410MAH, KMD-410MWH manual Water Regulating Valve WATER-COOLED Model only

Page 46

14) Turn on the power supply.

8. WATER REGULATING VALVE – WATER-COOLED MODEL ONLY

1)Turn off the power supply.

2)Remove the panels.

3)Close the condenser water supply line shut-off valve, then open the condenser water supply line drain valve.

4)Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve.

5)Open the water regulating valve by using a screwdriver to pry up on the spring retainer underneath the spring. While holding the valve open, blow out the condenser using the compressed air or carbon dioxide supply until water stops coming out.

6)Recover the refrigerant and store it in an approved container.

7)Disconnect the capillary tube at the condenser outlet.

8)Disconnect the flare-connections of the valve.

9)Remove the screws and the valve from the bracket.

10)Install the new valve.

11)Remove the drier, then place the new drier in position.

12)Braze all fittings while purging with nitrogen gas flowing at a pressure of 20 to 30 kPa..

13)Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of refrigerant to the system (if using an electronic leak detector), and then raise the pressure using nitrogen gas (970 kPa). DO NOT use R-404A as a mixture with pressurized air for leak testing.

14)Evacuate the system, and charge it with refrigerant. See the nameplate for the required refrigerant charge.

15)Connect the flare-connections.

16)Close the condenser water supply line drain valve, then open the condenser water supply line shut-off valve.

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Contents Page Page Contents Page Specifications KMD-410MAH air-cooledKMD-410MWH water-cooled Water Cooled CondenserII. General Information Construction KMD-410MAHKMD-410MWH Initial Harvest Cycle Sequence of OperationONE Minute Fill Cycle Freeze CycleNormal Harvest Cycle KMD-410MAH, 410MWH Control Board Control Board Layout High Temperature Safety Features Maximum Water Supply Period 6 minutesHarvest Backup Timer and Freeze Timer Low Water SafetyLED Lights and Audible Alarm Safeties Sequence of OperationControls and Adjustments Default Dip Switch Settings Harvest Timer S1 dip switch 1Drain Frequency Control S1 dip switch 5 Drain Timer S1 dip switch 3Water Saver Timer S1 dip switch 7 Pump-Out Pump Motor Delay S2 dip switch Freeze Timer S1 dip switch 9Factory Use S2 dip switch 5 Program Ver .5 or earlier Refill Counter S2 dip switch 3 Program Ver .1, Ver Anti-Slush Control S2 dip switch 6 Program Ver Control Board Check Procedure Control Board ReplacementHarvest Control Thermistor Float Switch Check Procedure Float SwitchCleaning Explanation of OperationBIN Control Check Procedure BIN ControlControl Switch SwitchesService Switch Page Wiring Diagram Magnetic contactor wiring depends on the contactor modelChart TimingPerformance Data 148440 IV. Service Diagnosis Minute Diagnostic Procedure Page Diagnostic Charts No ICE ProductionPage See II . d Control Board Check Procedure Evaporator is Frozen UP LOW ICE Production Abnormal ICEOther Removal and Replacement Service for Refrigerant Lines Refrigerant Leak Check Refrigerant RecoveryEvacuation, Vacuum Pump and Refrigerant Charge R404A Evacuation and RechargeBrazing Compressor Drier HOT GAS Valve Expansion Valve Evaporator Water Regulating Valve WATER-COOLED Model only Adjustment of Water Regulating Valve WATER-COOLED Model only FAN MotorPump Motor Drain VALVE, Cleaning Valve Water ValveWater Tank Float Switch BIN Control Switch Thermistor Control BOX Push Buttons Fuse Holder Control & Service SwitchFuse Control BoardRUN Capacitor Spray TUBE, Water Supply TUBE, Spray GuideStarter Start CapacitorTabs Hose Band Water Supply Tube Under Spray Tube VI. Cleaning and Maintenance Instructions Cleaning ProcedurePage Page Maintenance Sanitizing Procedure Following Cleaning ProcedureStorage BIN and Scoop Preparing the Icemaker for Long StorageStainless Steel Exterior AIR Filters AIR-COOLED Model onlyRemove the water from the icemaker water supply line Drain the water tank
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KMD-410MWH, KMD-410MAH specifications

The Hoshizaki KMD-410MWH and KMD-410MAH are premier ice makers, designed for commercial establishments that require high-efficiency ice production. These units stand out for their advanced features and technology that cater to the diverse needs of restaurants, bars, and hotels.

One of the primary features of the KMD-410 lineup is its impressive ice production capacity. With a production rate of up to 410 pounds of cube ice in a 24-hour period, each model ensures a steady supply of ice, which is essential for businesses with high demand. The ice produced is in the form of clear, hard cubes, ideal for beverage cooling, cocktail preparation, and food presentation.

Both models showcase the unique Hoshizaki ice-making system, which employs a direct cooling method. This technology uses individual stainless steel evaporators to produce ice, resulting in more uniform cubes and less waste. The stainless steel construction contributes to the durability of the units, making them suitable for rugged commercial environments.

Energy efficiency is another hallmark of the KMD-410MWH and KMD-410MAH. These machines are designed with an energy-saving mode that reduces power consumption without compromising ice production. This is critical for businesses looking to minimize operational costs while maintaining high standards of service.

User convenience is prioritized in these models through features like the easy-to-clean design. The internal components can be accessed quickly, allowing for simpler maintenance and sanitation processes. Additionally, the built-in cleaning cycle aids in maintaining ice purity and preventing bacterial growth, which is essential for food safety.

The KMD-410MAH also includes an advanced monitoring system with indicators for water usage and ice levels. This feature allows operators to keep track of performance and make necessary adjustments, ensuring that the ice maker operates at peak efficiency.

For installation flexibility, both models can be paired with various storage bins and dispensers, adapting to the layout of any establishment. Furthermore, they can be equipped with optional filtration systems that enhance water quality, further improving the taste and clarity of the ice produced.

In summary, the Hoshizaki KMD-410MWH and KMD-410MAH ice makers are exemplary choices for any business that demands high-quality, reliable ice production. Their robust features, energy-efficient operation, and user-friendly design make them indispensable assets in the hospitality and foodservice industries.
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