Direct Replacement Coil Restores Fresh Air Unit @ Hyatt House - Naples

HeatEX Technologies • April 23, 2026

Unit Model: Greenheck Model rve-35-36p

Project Overview:

The Hyatt House Hotel in Naples, FL experienced performance issues with a Greenheck Model RVE-35-36P fresh air unit due to a failing OEM coil. The original coil (pictured above) showed visible corrosion and was beginning to lose refrigerant, resulting in reduced efficiency and unreliable operation.

The Solution:

We supplied a direct replacement coil designed specifically to match the original Greenheck coil dimensions and performance requirements. Because this was truly a direct replacement, installation was straightforward and required no modifications to the fresh air unit.

This can be directly attributed to the HeatEX Technologies process. We came out to the job site to measure the coil and ensure connection locations on the replacement coil would fit correctly to the existing unit.

The Results:

With the new coil installed, the fresh air unit returned to proper operation, improving reliability and restoring system efficiency.

Eliminated refrigerant leakage issues
Restored system efficiency
Maintained original equipment performance
Reduced downtime during installation because of proper sizing
Extended the life of the fresh air unit

Why Direct Replacement Coils Matter

Replacing failed coils with direct OEM-fit replacements is one of the most effective ways to restore HVAC performance without replacing the entire unit. This approach minimizes downtime, reduces installation complexity, and ensures the system continues operating as designed.

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How AI is Reshaping the Future of HVAC

June 5, 2026

Increasing demand for AI, high performance computing, along with hyperscale data center expansion are creating a massive new market for HVAC. The shift is in cooling, as data center cooling is moving beyond incremental airflow optimization, and towards liquid cooling in order to support AI and its specific cooling needs. Because of this, the data center liquid cooling market is projected to expand from 6.6 billion dollars to 38.4 billion dollars by 2033. North America is the current hotspot for this investment as it hosts the largest concentration of AI training clusters globally. Historically, data centers have relied on air-based systems for their cooling, which includes CRAHs, chilled water systems, and precision cooling equipment. Because AI servers are now generating higher heat loads than previously (Modern AI racks can exceed 100 kW per rack compared to the traditional 5-15 kW loads of the past), facilities need heavier duty cooling, sparking the transition to liquid cooling solutions. This transition to liquid cooling is not removing HVAC systems and instead restructures their role within AI facilities. Removing building heat, maintaining environmental conditions, and supporting chilled water distribution systems are all issues that HVAC remains a critical solution to. As a result of this, specialized coils, such as the ones HeatEX produces are growing in demand along with cooling towers, heat exchangers, and other thermal regulation components necessary for dealing with high heat rejection requirements. This trend to support AI with Liquid cooling brings new challenges with infrastructure and compatibility for projects, as operators prioritize power usage effectiveness reduction and carbon footprint optimization. Ensuring coolant compatibility with diverse server architectures, leak prevention, and aligning cooling with rapidly advancing cycles are a few of these challenges. Operators are looking for companies that can specialize towards their plants and customize them to their need.