4)Close the low-side valve and high-side valve on the gauge manifold.

5)Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. See the rating label inside the icemaker for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 (latest edition) be used.

6)A liquid charge is required for charging an R-404A system (to prevent fractionation). Place the service cylinder on the scales: if the service cylinder is not equipped with a dip tube, invert the service cylinder, then place it on the scales. Open the high-side valve on the gauge manifold.

7)Allow the system to charge with liquid until the proper charge weight is met.

8)If necessary, add any remaining charge to the system through the low-side.

NOTICE! To prevent compressor damage, use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low-side access valve with the icemaker running.

9)Close the high and low-side gauge manifold valves, then disconnect the gauge manifold hoses.

10)Cap the access valves to prevent a possible leak.

B.Important Notes for Component Replacement

NOTICE

When replacing a component listed below, see the notes to help ensure proper operation.

Component

Notes

Compressor

Install a new drier, start capacitor, and start relay.

Expansion Valve

• Install a new drier.

 

• Attach the expansion valve bulb to the suction line in the same location as the previous

 

bulb.

 

• The bulb should be between the 10 and 2 o'clock positions on the tube.

 

• Secure the bulb with the clamp and holder, then insulate it.

 

 

Upper and

• Inspect the upper bearing for wear. See "V.B.1. Upper Bearing Wear Check." Replace if

Lower Bearings

necessary.

 

• When replacing the upper bearing it is advised to also change the lower bearing at the

 

same time.

 

 

Evaporator

• Install a new drier.

 

• Inspect the mechanical seal and O-ring prior to installing the new evaporator. If worn,

 

cracked, or scratched, the mechanical seal should also be replaced.

 

 

Gear Motor

Install a new gear motor capacitor.

 

 

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Hoshizaki DCM 300BAH(-OS) service manual Important Notes for Component Replacement
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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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