STULZ WPAmini chillers
 

STULZ, one of the world's leading solution providers of energy efficient temperature and humidity management technology, has launched a WPAmini chiller with integrated free cooling. It has been designed specifically for data centres with low cooling requirements and industrial chilling.

The compact chiller will deliver a cooling capacity up to 160 kW in a very small space. The chillers are operated with two redundant refrigerant circuits to increase operational reliability. Both circuits are controlled on the basis of the required cooling capacity, so that the respective circuit is activated with maximum efficiency when minimal cooling is needed. The WPAmini is equipped with maximum size aluminum microchannel condensers and four scroll compressors, which are activated and deactivated in stages, in line with the current heat load. The compressor operating time can be reduced to a minimum using the optional free cooling facility, which will considerably reduce power consumption, and operating costs. Three operating modes are available in total: DX mode, free cooling mode and mixed mode. In mixed mode, cooling capacity is generated by means of simultaneous free cooling and compressor cooling. This means that significant energy savings can be achieved even at moderate outdoor temperatures.

 

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