29 August 2018

STULZ has added chillers with a stepless capacity control (EC compressor) and an output from 20 to 100kW to its portfolio. 

The company says its CyberCool Indoor series has been specially engineered to precisely adapt to low or fluctuating heat loads.

With a maximised temperature range from 4º to 18°C at the chilled water outlet, the models in the new line-up are said to be suitable for a broad range of applications including data centres where, according to STULZ, they allow planners maximum freedom for individual project specifications and customer requirements.

A choice of three systems are available in the CyberCool Indoor range: air-cooled with external condenser, water-cooled, or the TCO-Leader. The latter features indirect free cooling and intelligent mode switching (compressor cooling, free cooling or mixed mode). 

All three systems can be equipped with on/off compressors or with new energy-saving EC compressors as standard. STULZ says the EC versions contain two complete, redundant refrigerant circuits and ensure high efficiency in partial load. It adds that the system reacts quickly to dynamic load fluctuations avoiding on/off cycling to guarantee an extended equipment life.