Evacuation and Recharge R-404A | Hoshizaki DCM-500BWH-OS specification

1)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.

2)Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.

3)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.

3.Evacuation and Recharge (R-404A)

1)Attach a vacuum pump to the system. Be sure to connect the charging hoses to both high and low-side access valves.

IMPORTANT

The vacuum level and vacuum pump may be the same as those for current refrigerants. However, the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for POE oils.

2)Turn on the vacuum pump. Open the service manifold valves. Never allow the oil in the vacuum pump to flow backwards.

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 high‑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)A liquid charge is recommended for charging an R-404A system. Invert the service cylinder and place it on scales. Open the high-side valve on the service 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. Use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low-side access port with the unit running.

9)Close the service manifold valves and disconnect the service manifold hoses.

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

DCM-500BWH-OS specifications

The Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS are advanced ice makers designed to meet the needs of busy commercial environments. Hoshizaki is a renowned manufacturer known for producing high-quality refrigeration and foodservice equipment, and their DCM series of ice makers exemplifies this commitment to excellence.

One of the main features of the DCM-500 series is its ability to produce a significant amount of ice, ideally suited for restaurants, bars, and hotels. With a production capacity of up to 500 pounds of nugget ice per day, these units provide an efficient solution for establishments that require a steady supply of ice.

The nugget ice produced by the DCM-500 series is not only soft and chewable but also retains the cold temperature longer, making it perfect for beverages. This appealing characteristic of nugget ice caters to growing customer preferences for premium ice options.

These models also incorporate advanced ice-making technology, ensuring consistent quality. The DCM-500BWH-OS and DCM-500BAH-OS variants feature a self-contained design that makes installation simple and efficient, providing enhanced portability that makes them versatile for different locations within a commercial space.

The DCM-500BWH and DCM-500BAH models are equipped with features like a built-in ice bin that allows for storage convenience. The ice bins have a substantial holding capacity, reducing the frequency of refills and improving overall operation efficiency.

Additionally, the DCM-500 series is designed with energy efficiency in mind. Integrated with modern refrigeration systems, these ice makers comply with energy-saving standards, helping to reduce operational costs. User-friendly controls allow for easy adjustment and monitoring, ensuring that operators can manage their ice production without hassle.

Moreover, the robust construction materials used in these models increase durability, making them suitable for high-demand environments. Features such as easy-to-clean surfaces and self-diagnostic systems further optimize maintenance, ensuring prolonged performance without significant downtime.

Overall, the Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS ice makers are excellent choices for businesses seeking reliable and high-capacity ice production. Their advanced features, energy efficiency, and user-friendly operation make them a valuable addition to any commercial kitchen or bar setup.