Mantova, Italy

The new distribution center for Rossetto SpA was built in Mantova, Italy.

Enex has designed and supplied the refrigeration units for the almost 90.000 m3 building.

The distribution center has a total requirement of circa 2,0 MW for medium temperature use and 500 kW for low temperature. It is one of the biggest in Italy and it was installed by SCAR refrigeration (Milano).

Due to large size of evaporators for LT it was a specific request from the Ownership to limit to a minimum the electric energy consumption, also during defrosting.

Enex developed a new circuit design, the first example of hot gas defrost with total heat rejection in a transcritical system with CO₂, which was thoroughly tested before being installed at the customer’s site.

The results were beyond the expectations: extremely fast defrosting, low energy consumption, stable temperature in the refrigerated cold rooms, no thermal stress on the piping and on evaporators due to low operating temperatures and finally extreme reliability of the system.

The “warm gas” defrosting was not the only innovation of the system. Together with installer a series of control procedures were developed to further minimize the energy consumption and to manage properly the system.

All the solutions developed by Enex since 2014 to maximize efficiency were implemented:

  • Liquid ejector
  • Parallel compressors
  • Expansion energy recovery with ejectors
Number of units3
Number of compressors MT per unit6
Number of LT compressors per unit4
Number of auxiliary compressors per unit2
Total net capacity for each unit600 kW MT / 200 kW LT

The system installed is, still in 2022, the state-of-the-art refrigeration system, and more of these systems are under construction.


Vice Chairman Enex Industrial

  • Joined ENEX Technologies from EOS Refrigeration in 2023, where he was founder & CEO
  • More than 30 years’ experience in the Refrigeration sector as a managing director and then founder of a leading ammonia refrigeration OEM, generating more than 30% annual growth
  • Launched several innovative products focused on energy efficiency and environmental sustainability
  • Obtained an Engineering degree from UPC – Polytechnic University of Catalonia, Barcelona

CEO, Heat Exchangers, Enex Technologies

  • Based in Treviso, Italy
  • Joined Roen Est in 2020 as Chief Operating Officer
  • 20 years’ experience in operations, lean manufacturing, product commercialization and supply chain with Danfoss and Rivacold
  • Earned a degree in Engineering from the University of Saint Etienne in France

CEO, Commercial Refrigeration and Enex HVAC

  • Joined Enex Technologies from Carrier, where he was Managing Director, Commercial HVAC Europe
  • More than 20 years’ experience in the HVAC sector leading transformation, with a track record of significantly improving the financial performance of the businesses he leads
  • Earned a degree in Economics Business and Administration at Universidad Complutense
  • Completed programs at the University of Virginia’s Darden School of Business, and IESE Business School

Founder, COO and Honorary President, Enex Srl

  • Earned a Mechanical Engineering degree from Padova University
  • Based in Padernello (TV), Italy
  • Founded Enex Srl in 2004 to design and develop high efficiency refrigeration systems using natural refrigerants with low global warming potential, revolutionizing the industry
  • Authored 16 industry papers including two international peer-reviewed journals
  • Awarded 17 patents for technological innovations that continue to advance the efficient application of CO₂ refrigeration systems in all climates