ICE Series

Refrigeration System

Thermostatic Expansion Valve (Continued)

A dual evaporator machine will have one TXV for each evaporator. If one TXV sticks open and the other is operating normally, the suction pressure will be higher than normal and both evaporators will build thick ice. It is recommended that both valves be replace if one sticks open.

If one TXV sticks closed and one is operating normally, the suction pressure will be normal or low but the evaporator with the defective valve will be starved (thick ice at the bottom and thin ice at the top).

Evaporator

As water is circulated over the front of the evaporator, liquid refrigerant is circulated through the tubing attached to the back of the evaporator. As the liquid refrigerant in the tubing vaporizes, it absorbs heat from the water causing the water to freeze. The evaporator should be completely flooded throughout most of the freeze cycle. A flooded evaporator will build ice evenly across the evaporator. A starved evaporator will have uneven ice formation. Most problems with ice formation or harvesting are not related to a defective evaporator, use the Troubleshooting Trees in section C for additional help.

Refrigerant enters the evaporator through the bottom tube and exits through the top tube. On models ICE800, 1000, 1800 and 2100 the refrigerant line at the TXV outlet splits into two feeder tubes. This split occurs at the distributor, which is a fitting that is soldered to the TXV. One feeder tube from the distributor feeds the top of the evaporator; the other tube feeds the bottom of the evaporator. The evaporator tubes run parallel, in opposite directions, along the back of the evaporator creating a dual pass.

If the evaporator is flooded but not building ice evenly, it is possible the evaporator has coil separation. Evaporator coil separation is the separation of the refrigerant tubing from the back of the evaporator plate. This is very rare but occasionally occurs.

To confirm coil separation, remove and check the back of the evaporator. If the coil is separated, the evaporator must be replaced. If the outlet(s) of the evaporator is not frosted, the problem is not with coil separation (Refer to the troubleshooting trees, section C).

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Ice-O-Matic ICE0250 Series installation manual Thermostatic Expansion Valve, Evaporator
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ICE0250 Series specifications

The Ice-O-Matic ICE0250 Series is a high-performance, modular ice maker that has been designed specifically to meet the needs of commercial establishments. Known for its durability and efficiency, this series is ideal for restaurants, bars, and hotels requiring a consistent supply of quality ice. The unit produces up to 250 pounds of clear, cube ice per day, making it an excellent choice for businesses with moderate ice demands.

One of the standout features of the ICE0250 Series is its energy efficiency. The ice maker is designed with a focus on reducing energy consumption, enabling business owners to save on operational costs while still providing ample ice for their customers. The unit is ENERGY STAR certified, reflecting its compliance with energy efficiency guidelines set by the U.S. Environmental Protection Agency (EPA).

The ICE0250 model also incorporates a unique air filtration system that helps ensure an uninterrupted ice production cycle. This technology minimizes the impact of airborne dust and contaminants, which can significantly affect the quality and hygiene of the ice produced. The unit's heavy-duty construction is designed to withstand the rigors of commercial use, providing long-lasting performance.

Another key characteristic of the ICE0250 Series is its compact design, which allows it to fit seamlessly into various commercial kitchen settings. Despite its smaller footprint, the unit does not compromise on ice production capabilities. Additionally, its user-friendly controls simplify operation, making it easy for staff to manage the ice-making process effectively.

Maintenance is also straightforward with the Ice-O-Matic ICE0250 Series. It features a self-cleaning function that automatically flushes the system, helping to maintain optimal performance while reducing the frequency and complexity of manual cleanings. This feature can save valuable time for busy kitchen staff.

In conclusion, the Ice-O-Matic ICE0250 Series stands out as an efficient, durable, and reliable ice maker for commercial applications. With its energy-saving technologies, robust construction, and ease of maintenance, this ice maker is a top choice for businesses looking to deliver ice in a consistent and hygienic manner. Whether for serving refreshing beverages or creating exquisite culinary presentations, the ICE0250 ensures that ice production remains effortless and efficient.
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