Hoshizaki DCM 300BAH(-OS) Removal and Replacement of Components, Service for Refrigerant Lines

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V. Removal and Replacement of Components

WARNING

•This icemaker should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire.

•Move the power switch to the "OFF" position and turn off the power supply to the icemaker before servicing. Lockout/Tagout to prevent the power from being turned back on inadvertently.

•CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the equipment is serviced. Make sure that none have fallen into the storage bin.

•Make sure all food zones in the icemaker and storage bin are clean after

the icemaker is serviced. For cleaning procedures, see "VI. Cleaning and Maintenance."

•When replacing evaporator assembly and water circuit components, make sure there are no water leaks after the repair is complete.

A.Service for Refrigerant Lines

WARNING

•Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA-certified service personnel.

•Always recover the refrigerant and store it in an approved container. Do not discharge the refrigerant into the atmosphere.

•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 (140 PSIG). DO NOT use R‑404A as a mixture with pressurized air for leak testing.

NOTICE

•Do not leave the system open for longer than 15 minutes when replacing or servicing parts. The Polyol Ester (POE) oils used in R-404A units can absorb moisture quickly. Therefore it is important to prevent moisture from entering the system when replacing or servicing parts.

•Always install a new drier every time the sealed refrigeration system is opened.

•Do not replace the drier until after all other repair or replacement has been made.

Install the new drier with the arrow on the drier in the direction of the refrigerant flow.

•When brazing, protect the drier by using a wet cloth to prevent the drier from overheating. Do not allow the drier to exceed 250°F (121°C).

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Contents DCM-300BAH-OS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Specifications Icemaker DCM-300BAH-OSII. General Information Construction IcemakerIcemaking Unit Sequence of Operation Sequence Cycles and ShutdownShutdown & Restart Sequence Flow ChartCycle Steps 12-Hr. Drain CycleControl Board Control Board DCM-PB Push Button Model Control BoardControl Board Layout K5 Connector DCM-OS Opti-Serve Model Control BoardLED Lights and Components Power Switch, Control Switch, and Dispense Mode SwitchPower Switch Control Switch Dispense Mode SwitchPage Wiring Diagrams DCM-300BAH-OS Performance Data Ice Production Check IV. Service DiagnosisDiagnostic Procedure Page Page Page Page Control Board Check 5VDC Output ChecksPage Opti-Serve Model ICE and AM LEDs are on K5 Pin #7 R wire Page Bin Control Check Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Startup Diagnostic ChartsNo Ice Production Fill CycleIce Purge Cycle ShutdownIce Dispense Opti-Serve Ice/Water DispenseIce Dispense Push Button Water Dispense Push Button3b. Ice Dispense Portion Opti-Serve OS Sensors3a. Ice Dispense Continuous 3c. Water DispenseRemoval and Replacement of Components Service for Refrigerant LinesEvacuation and Recharge R-404A Refrigerant RecoveryBrazing Important Notes for Component Replacement Evaporator Assembly Removal and Replacement of Extruding Head Upper Bearing Wear CheckRemoval and Replacement of Auger Removal and Replacement of EvaporatorPage 5b. Lower Housing Removal and Replacement of Gear Motor Dispense Auger and Agitator Dispense or Agitating MotorVI. Cleaning and Maintenance Cleaning and Sanitizing Instructions Water SystemSanitizing Solution Cleaning and Sanitizing Procedure Dispense ComponentsWater Dispense Nozzle Ice Dispense Spout Spout Cover Frequency Area Task MaintenanceMaintenance Schedule Preparing the Icemaker for Periods of Non-Use VII. Disposal

DCM 300BAH(-OS) specifications

The Hoshizaki DCM 300BAH(-OS) is a high-performance ice and water dispenser designed to meet the demands of various commercial environments. Known for its reliability and efficiency, this machine is widely used in restaurants, hotels, and catering services where a continuous supply of ice is essential.

One of the standout features of the DCM 300BAH(-OS) is its ability to produce crescent-shaped ice, which is favored in many settings for its hardness and slow-melting properties. This type of ice helps maintain the temperature of beverages longer without diluting them too quickly, making it ideal for mixed drinks and soft drinks alike.

Technology-wise, the Hoshizaki DCM 300BAH(-OS) integrates advanced refrigeration components that enhance energy efficiency. The machine is designed with a patented cooling system that reduces energy consumption while maintaining optimal ice production. Moreover, it is equipped with a highly efficient compressor that ensures quick recovery times even during peak usage.

One characteristic that sets this model apart is its space-saving design. With a footprint that allows for easy placement in tight quarters, it is particularly suited for establishments with limited counter space. The sleek and contemporary exterior also means it complements a variety of decor styles, making it a versatile addition to any commercial kitchen or bar.

The unit boasts a user-friendly interface, with easy-to-read indicators for ice and water levels, allowing staff to manage operations seamlessly. Additionally, the DCM 300BAH(-OS) features a self-cleaning cycle, which automates the sanitation process to ensure the utmost hygiene standards are maintained. This feature not only saves time but also enhances the longevity of the unit by reducing wear and tear.

Its durable construction is another strong point. Built from high-quality stainless steel, the DCM 300BAH(-OS) is resistant to corrosion and wear, ensuring it can withstand the rigors of daily use. Furthermore, Hoshizaki products are renowned for their reliability, and this model upholds that reputation, providing consistent performance with minimal downtime.

In summary, the Hoshizaki DCM 300BAH(-OS) stands out for its efficient ice production, innovative technology, space-saving design, user-friendly features, and robust durability, making it an ideal choice for any business that requires a reliable ice and water dispensing solution.
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