Which is the most energy efficient solution within the Liebert XD product family?
This depends a lot on site specific conditions. In general, cooling solutions that take the cooling fluid closer to the heat load are more efficient. Therefore, a Closed architecture solution is typically more energy efficient than an open architecture solution. However, a solution using the Pumped Refrigerant technology is more energy efficient than a solution using water based technology. The reason for this is that the phase changing of the fluid that takes place with the pumped refrigerant allows the fans in the evaporator modules and the circulating pumps to be smaller.
