{"id":34746,"date":"2026-03-31T17:30:10","date_gmt":"2026-03-31T09:30:10","guid":{"rendered":"https:\/\/soeteck.com\/?p=34746"},"modified":"2026-04-08T09:28:42","modified_gmt":"2026-04-08T01:28:42","slug":"retrofit-to-a-liquid-cooled-data-center","status":"publish","type":"post","link":"https:\/\/soeteck.com\/pt\/news-and-insights\/blogs\/retrofit-to-a-liquid-cooled-data-center\/","title":{"rendered":"\u00c9 poss\u00edvel readaptar um centro de dados refrigerado a ar para um centro de dados refrigerado a l\u00edquido?"},"content":{"rendered":"\n

If you\u2019re a data center operator, you\u2019ve probably asked yourself the big question: Can I retrofit my existing air cooled data center to use liquid cooling and become a functional liquid cooled data center<\/a><\/strong>? The short answer is yes\u2014but making it work takes careful planning, checking hardware compatibility, and aligning the retrofit with your business goals.<\/p>\n\n\n\n

In this guide, I\u2019ll walk you through everything you need to know about switching from air to liquid cooling, from feasibility checks to step-by-step methods and cost considerations.<\/p>\n\n\n\n

Is Retrofitting an Air Cooled Data Center to Liquid Cooling Feasible?<\/h2>\n\n\n\n

The first thing every operator wants to know is whether retrofitting is even possible\u2014and the answer is almost always yes, with a few caveats. More than 60% of data centers around the world still use traditional air cooling, and most of these can be retrofitted to become a liquid cooled data center with the right approach. Feasibility really comes down to three core factors, which I\u2019ll break down in detail below:<\/p>\n\n\n\n

1. Existing Data Center Infrastructure & Layout<\/h3>\n\n\n\n

Your facility\u2019s physical layout and structural capacity are make-or-break when transitioning to liquid cooling. Liquid cooling systems\u2014whether cold plate, immersion, or hybrid\u2014need space for coolant distribution units (CDUs), piping, and heat exchangers, all essential components of a functional system. Here\u2019s what you need to keep in mind:<\/p>\n\n\n\n

Liquid cooling components\u2014especially immersion tanks and CDUs\u2014are heavier than traditional air cooling gear. Most modern data centers have raised floors designed to handle extra weight, but older facilities might need structural upgrades to meet GB 50370 building load standards, a key requirement for safe operation.<\/p>\n\n\n\n

You will need to route coolant piping to each rack; this may involve modifying existing cable trays or cutting new openings in the raised flooring\u2014all of which are critical steps in upgrading to a liquid cooled data center.Open-loop systems may also require extra space for water treatment equipment, while closed-loop systems offer more flexibility in routing for your facility.<\/p>\n\n\n\n

Heat rejection units often need to be mounted on roofs or exterior walls, so you\u2019ll need to confirm structural compatibility and make sure you\u2019re following local building codes\u2014critical steps to ensure safe operation.<\/p>\n\n\n\n

2. Hardware Compatibility<\/h3>\n\n\n\n

Industry experts unanimously agree that when retrofitting existing facilities into a liquid cooled data center, hardware compatibility is often the greatest obstacle encountered.Traditional air cooled servers are built with heat sinks and fans optimized for airflow, so they may need modifications to work with liquid cooling systems. Here\u2019s what to check:<\/p>\n\n\n\n

Roughly 80% of in-service air-cooled servers need their heat sinks replaced with liquid-compatible cold plates to support direct liquid cooling, a common cooling method. Some newer servers are \u201cliquid-ready,\u201d though, so you might not need a full hardware replacement for those when building your facility.<\/p>\n\n\n\n

Right now, there are no universal standards for liquid cooling equipment interfaces\u2014things like quick-connect fittings and pipe sizes. This can cause compatibility issues if you mix components from different vendors, which can delay your retrofit. Working with a single vendor or using standardized parts can help avoid this problem.<\/p>\n\n\n\n

Liquid cooling adds pumps, sensors, and valves, all of which need to be compatible with your existing IT infrastructure\u2019s grounding and electromagnetic systems. Make sure you\u2019re following GB 50057 and GB 50231 standards here to ensure reliable operation.<\/p>\n\n\n\n

3. Budget & ROI Expectations<\/h3>\n\n\n\n

Retrofitting to a liquid cooled data center isn\u2019t cheap, but it pays off in the long run with lower energy costs and higher density\u2014key benefits of this upgrade. A typical retrofit for a medium-sized data center costs 30-40% of the original facility investment, but payback periods usually range from 2-5 years\u2014depending on energy prices and how dense your workloads are. You\u2019ll need to balance upfront costs (hardware, installation, labor) against long-term operational savings from lower PUE and less maintenance.<\/p>\n\n\n

\n
\"Liquid<\/figure>\n<\/div>\n\n\n

Common Retrofit Methods for Air-to-Liquid Cooling<\/h2>\n\n\n\n

There is no one-size-fits-all solution for converting an air cooled data center into a liquid cooled data center\u2014the specific choice depends on your workload density, budget, and existing infrastructure. Below are the three most common methods, ranked from lowest to highest complexity, all designed to help you build an effective system:<\/p>\n\n\n\n

1. Hybrid Liquid-Air Cooling<\/h3>\n\n\n\n

Hybrid systems combine liquid cooling for high-density racks with your existing air cooling for lower-density areas, making them perfect for gradual retrofits. This approach minimizes risk and downtime because you can target only the racks that are struggling with heat\u2014like AI or GPU clusters\u2014while easing into the full cooling setup.<\/p>\n\n\n\n

Install cold plates or rear door heat exchangers on your high-density racks, while keeping your CRAC\/CRAH units for the rest of the facility. The liquid system handles most of the heat from critical servers, while air cooling keeps ambient temperatures in check\u2014creating a balanced transition. This method requires minimal structural changes and can be rolled out in phases, making it ideal for operators new to liquid cooling technology.<\/p>\n\n\n\n

Best for: Data centers with mixed workload densities, limited upfront budget, or legacy hardware that can\u2019t be fully replaced\u2014all looking to transition without full-scale disruption.<\/p>\n\n\n\n

2. Cold Plate Liquid Cooling<\/h3>\n\n\n\n

Cold plate liquid cooling is the most popular retrofit option because it works with most existing server racks and delivers big PUE improvements\u2014 a top priority for any modern data center. It involves mounting cold plates directly to server CPUs and GPUs, which transfer heat to a liquid coolant circulating through a closed loop, the backbone of many cooling systems.<\/p>\n\n\n\n

Here\u2019s a step-by-step breakdown of how to retrofit with cold plate systems:<\/p>\n\n\n\n

    \n
  1. Assess your rack density and heat load to figure out how many cold plates you need.<\/li>\n\n\n\n
  2. Install a CDU (Coolant Distribution Unit) to regulate coolant temperature and flow\u2014critical for maintaining a stable system.<\/li>\n\n\n\n
  3. Run piping from the CDU to each rack\u2014usually under the raised floor\u2014to connect all components.<\/li>\n\n\n\n
  4. Replace server heat sinks with cold plates and connect them to the piping system, a key step in the conversion process.<\/li>\n\n\n\n
  5. Add leak detection sensors and insulation to prevent condensation\u2014this is critical for complying with GB 50174-2017 standards and ensuring safe operation.<\/li>\n<\/ol>\n\n\n\n

    Best for: High-density racks (15-40kW per rack), data centers looking to get their PUE down to 1.2-1.3, and operators who want to keep their existing servers while building an efficient system.<\/p>\n\n\n\n

    3. Immersion Liquid Cooling<\/h3>\n\n\n\n

    Immersion cooling\u2014where servers are fully submerged in dielectric fluid\u2014is the most effective method for extreme heat loads (40kW+ per rack), but it\u2019s also the most complex to retrofit. It requires major changes to your rack design and facility layout, making it a more intensive transition.<\/p>\n\n\n\n

    Key retrofit requirements for immersion cooling:<\/p>\n\n\n\n

      \n
    • Replace standard racks with waterproof immersion tanks that fit your server dimensions\u2014 a core component of an immersion-based system.<\/li>\n\n\n\n
    • Install fluid circulation and heat exchange systems\u2014like heat exchangers to transfer heat from the dielectric fluid to water\u2014essential for a functional setup.<\/li>\n\n\n\n
    • Modify server hardware to remove fans and ensure compatibility with dielectric fluids (most air-cooled servers need custom tweaks here).<\/li>\n\n\n\n
    • Add fire safety systems\u2014dielectric fluids are non-flammable, but you still need to comply with GB 50016 building fire codes to keep your facility safe.<\/li>\n<\/ul>\n\n\n\n

      Best for: Hyperscale data centers, AI\/HPC facilities, or operators planning a full infrastructure upgrade alongside their cooling retrofit.<\/p>\n\n\n\n

      \t\t
      \n\t\t\t