Free cooling chiller

Kaltra modernizes Ultracompact II chiller to add a new free cooling system

Following the market success of Ultracompact II, Kaltra modernized its free cooling version. The revised free cooling system now includes double-regulating valves and a 3-way mixing valve for precise water temperature control in free cooling operation.

Optionally, new free cooling chillers can be supplied with hydronic modules, with single or twin inline pumps driven either by fixed-speed or inverter motors. Hydronic modules can be completed with buffer tanks and integrated safety devices, and mesh-type strainer.

The updated Ultracompact II Freecool model displays 10-percent higher seasonal energy efficiency and optimized performance in free cooling operation.

Furthermore, Ultracompact II Freecool was upgraded with new control software and delivers enhanced features and functions for improved energy management and system health monitoring.

The refrigerant charge was also reduced by 25% thanks to new microchannel condensers used in the chiller design.

Ultracompact II Freecool chillers are immediately available for orders.

Headquartered in Germany, Kaltra Innovativtechnik GmbH designs, develops, and manufactures air conditioning and refrigeration equipment and systems. The company offers air-cooled, water-cooled, and free cooling chillersprecision air conditionersIT cooling systems, including room-, rack- and row-based solutions, and energy management solutions. It also designs and manufactures air-cooled condensersdry coolers, and cooling units for special applications. Additionally, Kaltra offers microchannel heat exchangers for condenser, evaporator, and water cooling and heating applications, as well as aluminium coils for small cooling applications. All Kaltra products are engineered with the clear objective of improving energy efficiency and reducing total cost of ownership.

For more information on Kaltra and its products call +49 911 715-32021 or visit