3.REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT

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.

Note: When replacing a Compressor with a defective winding, be sure to install the new Start Capacitor and Start Relay supplied with the replacement Compressor. Due to the ability of the POE oil in the compressor to absorb moisture quickly, the Compressor must not be opened more than 15 minutes for replacement or service. Do not mix lubricants of different compressors even if both are charged with R-404A, except when they use the same lubricant.

1)Turn off the power supply.

2)Remove the panels.

3)Recover the refrigerant and store it in an approved container.

4)Remove the Terminal Cover on the Compressor, and disconnect the Compressor Wiring.

5)Remove the Discharge and Suction Pipes using brazing equipment.

6)Remove the Hold-down Bolts, Washers and Rubber Grommets.

7)Slide and remove the Compressor. Unpack the new Compressor package. Install the new Compressor.

8)Attach the Rubber Grommets of the prior Compressor.

9)Sandpaper the Suction, Discharge and Process Pipes.

10)Place the Compressor in position, and secure it using the Bolts and Washers.

11)Remove plugs from the Suction, Discharge and Process Pipes.

12)Braze the Process, Suction and Discharge lines (Do not change this order), while purging with nitrogen gas flowing at the pressure 3-4 PSIG.

13)Install the new Filter Drier.

14)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.

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Hoshizaki KM-900MAF, KM-900MWF, KM-900MRF3 service manual Removal and Replacement of Compressor Important
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KM-900MAF, KM-900MRF3, KM-900MWF, KM-900MRF specifications

The Hoshizaki KM-900MRF3, KM-900MRF, KM-900MAF, and KM-900MWF are high-performance ice machines renowned for their efficiency, durability, and advanced technology. These models are designed to meet the needs of various industries, including restaurants, bars, and hotels, where ice production is critical for ensuring customer satisfaction.

One of the standout features of the KM-900 series is its high ice production capacity. Each model can produce an impressive amount of ice per day, making it suitable for high-demand environments. The KM-900MRF3 and KM-900MRF models are particularly noted for their ability to create crescent ice, which is known for its density and slow melting properties, ideal for beverages. On the other hand, the KM-900MAF and KM-900MWF models are designed to produce flake ice, which is perfect for display purposes and for use in food processing.

The KM-900 series uses a patented ice-making system that maximizes efficiency while minimizing energy consumption. These machines are equipped with powerful compressors and evaporators, ensuring quick and reliable ice production. Hoshizaki's commitment to energy efficiency is reflected in the low energy consumption rates of these machines, which are designed to operate quietly and with minimal environmental impact.

Moreover, each model features a durable stainless steel exterior, making them resistant to corrosion and easy to clean. This durability ensures that the machines maintain their high performance over time, even in demanding environments. The user-friendly control panel allows for easy operation and monitoring, while the built-in diagnostics can alert users to any potential issues, ensuring quick maintenance and minimal downtime.

The KM-900 series also prioritizes hygiene with its easy-to-clean design, including removable components and smooth surfaces that prevent bacterial growth. This is crucial for establishments that need to comply with health and safety regulations.

In summary, the Hoshizaki KM-900MRF3, KM-900MRF, KM-900MAF, and KM-900MWF models set the standard for commercial ice production. With their robust features, energy-efficient technology, and commitment to hygiene, these machines are an excellent investment for any business requiring high volumes of reliable ice. Their advanced design ensures that businesses can operate smoothly while providing customers with quality service.
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