Hoshizaki KML-200MWE, KML-200MAE service manual Refrigerant Recovery, Evacuation and Recharge

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V. REMOVAL AND REPLACEMENT OF COMPONENTS

1. SERVICE FOR REFRIGERANT LINES

[a] REFRIGERANT RECOVERY

The icemaker unit is provided with two Refrigerant Access Valves on the low-side and high-side lines. Recover the refrigerant from the Access Valves and store it in an ap- proved container. Do not discharge the refrigerant into the atmosphere.

[b]EVACUATION AND RECHARGE

1)Attach Charging Hoses, a Service Manifold and a Vacuum Pump to the system. For models with the Line Valve, be sure to connect Charging Hoses to both high-side and low-side lines, or the high-side line cannot be evacuated because of the Line Valve.

2)Turn on the Vacuum Pump.

3)Allow the Vacuum Pump to pull down to a 29.9" Hg vacuum. Evacuating period depends on pump capacity.

4)Close the Low-side Valve and High-side Valve on the Service Manifold.

5)Disconnect the Vacuum Pump, and attach a Refrigerant Service Cylinder to the Low- side line. Remember to loosen the connection, and purge the air from the Hose. See the Nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard No. 700-88 be used.

6)Open the Low-side Valve. Do not invert the Service Cylinder. A liquid charge will damage the Compressor.

7)Turn on the icemaker when charging speed gets slow. Turn off the icemaker when the Low-side Gauge shows approximately 0 PSIG. Do not run the icemaker at negative pressures. Close the Low-side Valve when the Service Cylinder gets empty.

8)Repeat the above steps 4) through 7), if necessary, until the required amount of refrigerant has entered the system.

9)Close the two Refrigerant Access Valves, and disconnect the Hoses and Service Manifold.

10) Cap the Access Valves to prevent a possible leak.

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Contents KML-200MAE KML-200MWE Foreword Contents Refrigerant Recovery Evacuation and Recharge Specifications 1. KML-200MAE KML-200MWE KML-200MAE II. General Information ConstructionKML-200MWE Controller Board SOLID-STATE ControlController Board Page Alpine C/Alpine Board Important Water Valve opening is limited to 6 minutes Sequence 1st Cycle2nd Cycle and after with pump drain Line Valve2nd Cycle and after with no pump drain OFF KML-200MWE Controls and Adjustments Alpine/Alpine C BoardSetting Time Setting Frequency Checking Controller Board Test Program of Controller Board Switches Control SwitchService Switch III. Technical Information KML-200MWE KML-200MAE, KML-200MWE Wiring DiagramsIf Float Sw. is OFF Timing ChartTo Freeze Cycle From Freeze Cycle Performance Data Heat of Rejection from Condenser Problem Possible Cause Remedy IV. Service Diagnosis No ICE ProductionController Board Clean LOW ICE Production Evaporator is Frozen UPOthers Abnormal ICEEvacuation and Recharge Refrigerant RecoveryBrazing Removal and Replacement of Compressor ImportantPage 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 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 Tube Page Page Cleaning Page Sanitizing Procedure Following Cleaning Procedure Maintenance

KML-200MWE, KML-200MAE specifications

The Hoshizaki KML-200MWE and KML-200MAE are commercial ice machines renowned for their high performance and reliability in the foodservice industry. Both models are designed to meet the needs of businesses that require a consistent supply of ice for various applications, including restaurants, bars, and hotels.

One of the standout features of the KML-200MWE and KML-200MAE is their ability to produce high volumes of crisp, clear ice. These machines utilize a combination of advanced refrigeration technology and a unique ice-making process that ensures a rapid ice production rate while maintaining energy efficiency. The modular design allows for easy integration into existing setups, making them an ideal choice for operators looking to expand their ice supply without a complete equipment overhaul.

The KML-200MWE features a built-in water-cooled condenser, allowing for operation in environments where air-cooled systems may not be viable. This feature is particularly useful in warm climates or kitchens with limited ventilation, as it ensures that the machine operates efficiently, regardless of external temperatures. In contrast, the KML-200MAE incorporates an air-cooled condenser, making it a more flexible option for operators who prioritize energy savings and ease of maintenance.

Both models utilize a unique fluorinated refrigerant, which not only enhances their cooling efficiency but also aligns with modern environmental standards. The internal components are constructed from high-quality stainless steel, ensuring durability and resistance to corrosion. Moreover, their easy-to-access design simplifies maintenance routines, enabling operators to keep the machines running smoothly with minimal downtime.

Another key feature of the KML-200MWE and KML-200MAE is their ice storage capacity. With an ample bin size, these machines can store a significant amount of ice, reducing the need for frequent refills and making them ideal for busy establishments. Additionally, they are equipped with automatic ice level controls, which help maintain optimal ice quantities while preventing overflow.

Hoshizaki ice machines are also recognized for their innovative air filtration systems, which improve the quality of the ice produced. This ensures that the ice is not only abundant but also free from any contaminants, meeting the high standards of hygiene expected in the food industry.

In summary, the Hoshizaki KML-200MWE and KML-200MAE are exemplary models that blend technology, efficiency, and durability. Their advanced features make them suitable for various commercial applications, providing operators with reliable performance and peace of mind. Whether choosing the water-cooled or air-cooled variant, businesses can expect a high-quality product that enhances their ice production capabilities.
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