retail

CO₂ Refrigeration for Central Warehouse of a Supermarket Chain | Friga-Bohn

High-capacity freezing and preservation for fresh and frozen products

Context & Challenge

In Burgos, a major supermarket chain set up a new logistics center designed to manage both fresh and frozen products. The challenge was to create a refrigeration system that could reliably freeze meat, fish, and vegetables, while also ensuring the long-term preservation of ice cream and other frozen goods.

The facility required two distinct systems:

  • A glycol chiller with air coolers for the fresh product storage.

  • A robust CO₂ system for the frozen storage areas.

To guarantee performance and capacity in the frozen section, the installer requested a solution capable of delivering nearly 400 kW of freezing power in a safe, energy-efficient, and reliable way.

The Friga-Bohn Solution

Friga-Bohn designed and delivered four subcritical CO₂ racks, tailored to the needs of the supermarket’s frozen storage. These racks were condensed through glycol, ensuring stability and efficiency under demanding conditions.

With a total refrigeration capacity of 382 kW, the racks were configured to handle the large-scale freezing requirements of the warehouse, while maintaining regulatory compliance and optimizing energy use.

This solution combined engineering expertise with adaptability, supporting both the supermarket’s supply chain and its sustainability objectives.


Key Specifications


  • 4 subcritical CO₂ racks for frozen storage

  • Total capacity: 382 kW

  • Condensation system: glycol-cooled for stability and efficiency

  • Applications: freezing of meat, fish, vegetables, and preservation of ice cream

  • Fresh storage: glycol chiller with air coolers for chilled products

Results & Benefits

  • High-capacity freezing: 382 kW of refrigeration ensures reliable storage of fresh and frozen products.

  • Dual system efficiency: glycol cooling for chilled goods + CO₂ racks for frozen storage.

  • Reliability & safety: robust subcritical CO₂ design adapted for industrial-scale operations.

  • Sustainability: natural refrigerant CO₂ helps reduce environmental impact.

  • Operational continuity: supports the supermarket chain’s logistics flow with secure preservation.

Discover More

At Friga-Bohn, we design refrigeration solutions to meet the real needs of retail logistics and cold storage. From CO₂ racks to glycol chillers and high-performance unit coolers, our equipment combines efficiency, reliability, and sustainability.

Planning a new logistics or storage facility?

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Cooling solutions, delivered with care

Cooling solutions, delivered with care

Cooling solutions, delivered with care