A direct expansion (DX) cooling solution is a refrigeration system that cools air by direct expansion of a refrigerant.  

Nexpand DX solutions prove to be more energy efficient when the heat load of the containment is below 100kW. This means that DX deployments are to be expected in small or medium size containment solutions where the heat densities per rack are not too high, commonly around 5kW per rack. 

Chilled water (CW) cooling solutions rely on a central chiller to circulate chilled water through a heat exchanger. The chilled water will absorb heat from the warm air via the heat exchanger to cool down the ambient air. 

CW solutions offer higher cooling capacities to face the most demanding applications, these prove to be more energy efficient when the heat load of the containment goes beyond 100kW. Applications such as high performance computing, artificial intelligence, gaming or crypto mining are commonly demanding this need. 

• A perfect integration of passive cooling technology (doors, roof and airflow management packages) and active coolers; 
• Nexpand is the best in class airflow management to improve airflow paths, to prevent hotspots
• Supports both hot and cold containment configurations;
• Room independent solution. No raised floor or false ceiling required;
• Often a more flexible and scalable solution, as the data center’s needs change or grow. 

A integrated IT infrastructure solution (standalone cabinets) designed to provide datacenter functionality at a scale suitable for edge computing or specific tasks. The perfect solution to bring data and application processing closer to users. 

• Refrigeration provided by row-based coolers;
• Heat density per cabinet shall be < 5kW;
• Room independent solution. No raised floor or false ceiling required;
• Suitable for small deployments of one to four cabinets with one or two coolers. Commonly seen in SMEs (small and medium-sized enterprises);