Lightstream Freecool



Kaltra expands chilled water plant at multi-tenant commercial centre

September 4, 2018


With the expansion of its premises, a large commercial centre located in Marseille needed to increase the capacity of its chilled water plant to meet the growing demand for chilled water production. Opened in 2014, Les Terrasses du Port occupies the area of more than 60,000 square meters and is a home to around 200 stores, restaurants, and food courts.


The existing system was operating with large-capacity water-cooled chillers plants that supplied chilled water to the building’s tenants. It adopted a primary-secondary pumping system and a total of six chillers with a combined capacity of 4800kW. To cover the demand, Kaltra offered 2 additional water-cooled chillers each producing 170 cubic meters per hour of chilled water. The supplied chillers feature dual water-cooled condensers and two refrigerant circuits filled with R134a gas. Together with chillers, Kaltra proposed its space-saving Mistral series dry coolers equipped with high-performance axial fans and cutting-edge heat exchangers with the small diameter, oval tubes.


With the new chillers and dry coolers provided by Kaltra, the average cooling plant efficiency improved from 5.70 to 5.95 at peak cooling load – based on the data from the energy audit which has been completed after the plant modernization.


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 chillers, precision air conditioners, IT cooling systems, including room-, rack- and row-based solutions, and energy management solutions. It also designs and manufactures air-cooled condensers, dry 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 aluminum 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


Please reload


Please reload


Please reload

  • facebook-aaaaaa
  • linkedin-aaaaaa
  • twitter-aaaaaa
  • googleplus-aaaaaa

Kaltra Innovativtechnik GmbH

Max-Reger-Str. 44
90571 Schwaig

+49(0)911 715 32021

VAT: DE300943964

Kaltra is a customer-focused developer and supplier of reliable, energy efficient thermal management equipment and solutions.


From the professionalism of our research and development engineers to the wide experience of our service team, we are dedicated to delivering you the best service possible.

Read more

© 2014-2019 Kaltra. All rights reserved.