Each model is available in a free-cooling configuration to allow low and average outdoor temperatures to cool the water year-round, achieving up to 90% energy savings, depending on the external temperature and the data center's heat load. The Liebert HPC has been designed to provide maximum energy savings and operate in tropical climates up to 52°C.
The new generation features an updated design with extensive surfaces that maximize the already high performance of previous versions. The Liebert HPC-M is designed to operate with high-temperature incoming water – up to 26°C – and integrate with the Emerson Network Power Smart Aisle architecture. The entire family has been designed using the latest technology and new software, ensuring consistent and measurable energy savings to deliver the highest ESEER and IPLV levels. A new generation of compressors, optimized for part-load operation, new heat exchangers designed for R134a refrigerant, and an innovative electronic expansion valve (EEV) are just some of the advanced technological features incorporated into the new Liebert HPC-M to improve operational efficiency and ensure optimal performance.
Thanks to the evolution of control algorithms implemented by Emerson Network Power, all Liebert HPC models can continuously control the fan capacitors, adapting their speed to operating conditions and controlling the machinery with constant power. Thanks to EC-fan technology, which provides maximum efficiency from minimum to maximum speed, noise levels are reduced and energy efficiency is increased.
In addition, the unit can be equipped with reverse pumps to adjust the water circuit flow rate.
The Liebert HPC-M includes a specific algorithm created for data center applications, such as Fast Start Ramp, a function that immediately restarts the chiller as soon as power is restored (for example, from the grid to a genset), ensuring business continuity.
