Hoshizaki HR24A service manual Service Menu Access

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b)Clearing High and Low Temperature Alarms To clear an alarm, follow the steps below.

1)Press the "-" button for 3 sec. to enter the alarm menu. "EnS" is displayed.

2)Press the "-" or "+" button twice. After pressing the "-" or "+" button the first time, "LS" is displayed. After pressing the "-" or "+" button the second time, "rLS" is displayed.

3)Once "rLS" is displayed, press the "P" button.

4)Using the "-" or "+" button, set the display to "149."

5)Press the "P" button. The display flashes "----" for 4 sec. The alarm and display module are now deleted and clear. The control board returns to normal operation.

Note: If the cabinet temperature is out of acceptable range, the procedures above only change the alarm icon from flashing to steady for 15 minutes. Once the temperature is in acceptable range, the alarm clears from the display module and deleted from memory.

H.Service Menu

The service menu chart is provided to give information on the operation parameters of this appliance. NOTICE! Do not adjust. Adjustments outside of the factory default settings could adversely affect safety, performance, component life, and warranty coverage.

Note: If the display module panel is locked, press and hold the "-" button and the power button until "UnL" appears briefly on the display module.

a) Service Menu Access

(1)Enter Service Menu

1.Make sure the appliance is plugged into the electrical outlet and power is on.

2.Press and hold the "-" and "+" buttons until "PA" is displayed.

3.Press the "P" button. "0" is displayed. Using the "-" button, set the display to "-19." This is the service menu password.

(2)Service Menu List

4.Press the "P" button, "PA" is displayed. Press and hold the "-" and "+" buttons until "SP" is displayed. "SP" is the first level of the service menu. "SP" is working setpoint.

5.To view the setting value, press the "P" button. To adjust the setting value, press the

"-" or "+" button. To return to the service menu list, press the "P" button. This saves the new value and returns you to the service menu list.

6.Press the "-" or "+" button to scroll through the service menu list. Press the "P" button to view the selected setting value. Press the "P" button again to save the changes and return to the service menu list.

(3)Exit Service Menu

7.Press the "-" and "+" buttons for 4 sec. to exit the service menu or do not operate the display for 60 sec. Display automatically switches back to normal operating mode and saves changes after 60 sec. of inactivity.

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Contents HR24A Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Specifications Electrical and Refrigerant Data Storage Capacity and DimensionsStorage Capacity Dimensions Unit mmII. General Information Construction HR24ASequence of Operation Sequence Cycles and ShutdownCool Down Restart EvapFM and Defrost icons are onHR24A Sequence Flow Chart Sequence Flow ChartControl Board and Display Module Control Board Layout Display Module LayoutCabinet Temperature Default SettingsDisplay Module Icons Control Panel LockoutAlarm Safeties High and Low Temperature Alarm Values AH or ALService Menu Service Menu AccessService Menu Chart Page AL alarm sensor. Do not adjust Fan operation with door closed 247 Address not used Baud Rate not used Parity not used III. Technical Data Refrigeration Circuit Wiring Diagram IV. Service Diagnosis Diagnostic ProcedurePage Energy Saving Mode Control Board Check Startup and Cool DownDefrost Thermistor Check Diagnostic Chart Appliance Not CoolingEvaporator is Frozen Up Defrost Fails to Start or TerminateReplacement of Components Service for Refrigerant LinesRefrigerant Recovery Brazing Evacuation and Recharge R-134aImportant Notes for Component Replacement Door Reversal Cleaning MaintenanceVII. Preparing the Appliance for Periods of Non-Use VIII. Disposal
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HR24A specifications

The Hoshizaki HR24A is an advanced refrigeration unit designed to meet the cooling needs of commercial kitchens and food storage facilities. Known for its reliability and efficiency, this model showcases several innovative features that set it apart in the competitive market of commercial refrigeration.

One of the standout characteristics of the Hoshizaki HR24A is its robust construction. Built with a durable stainless steel exterior, it not only adds aesthetic appeal but also ensures longevity and resistance to corrosion and wear. The interior is designed for easy cleaning, with rounded corners that minimize the buildup of grime and food particles.

The HR24A offers an impressive storage capacity, making it ideal for establishments with high-volume food storage requirements. With a temperature range typically between 33°F and 38°F, the unit maintains optimal conditions for preserving perishables such as meats, dairy, and vegetables. This precision in temperature control is essential for maintaining food safety and quality.

One of the key technologies integrated into the Hoshizaki HR24A is its advanced refrigeration system. Utilizing a highly efficient compressor and a fan-assisted cooling feature, the unit ensures rapid temperature recovery even in busy kitchen environments. This is crucial during peak hours when door openings are frequent, as it helps maintain consistent internal temperatures.

Energy efficiency is another hallmark of the HR24A. It is designed with environmentally friendly refrigerants and complies with Energy Star standards, which can lead to significant cost savings over time through reduced electricity consumption. This commitment to environmental responsibility makes it an attractive option for eco-conscious businesses.

In terms of user-friendliness, the HR24A is equipped with digital controls and adjustable shelving, allowing for customized organization according to specific storage needs. The LED lighting inside the unit provides excellent visibility, making it easy to locate items quickly, which is particularly beneficial during busy service periods.

Overall, the Hoshizaki HR24A combines durability, efficiency, and functionality, making it an exceptional choice for anyone seeking a reliable refrigeration solution in a commercial kitchen setting. Whether used in restaurants, hotels, or catering businesses, its impressive features and state-of-the-art technology continue to meet the demanding requirements of the foodservice industry.