CO₂LD Subline System and NOVA Evaporators for a Food Production Facility in Gennevilliers

Context & Challenge

Located in the Paris region (Gennevilliers), this food production facility required a refrigeration system capable of supplying both cold storage rooms and production workshops, each needing precise and stable temperature control.

The challenge was to design a dual water-loop system that could manage different temperature ranges while ensuring high energy efficiency, continuous 24/7 reliability, and flexibility for future system expansion.

The Friga-Bohn Solution

Friga-Bohn designed and commissioned a custom installation built around two independent MPG water loops:

• MPG -10°C / -5°C supplying the cold storage rooms.
  
  
• MPG +5°C / +10°C supplying the production workshops.
  
  

At the core of the system is the CO₂LD Subline, a 70 kW transcritical CO₂ central unit equipped with three BITZER compressors. The installation uses Danfoss electronic controls to ensure stable, efficient regulation, with condensation operated directly on the low-temperature loop (-10°C / -5°C) for maximum energy performance.

To guarantee uniform and dependable cooling in the frozen chambers, Friga-Bohn installed NOVA CO₂ unit coolers, engineered for low-temperature applications requiring high reliability and precise thermal stability.

Key Components

• CO₂LD Subline — 70 kW transcritical central unit with 3 BITZER compressors and Danfoss control.
  
  
• NOVA CO₂ unit coolers — high-efficiency evaporators for frozen storage rooms.
  
  
• Dual MPG water-loop system — optimized distribution for separate temperature circuits serving both storage and production zones.
  
  

Results & Benefits

• Dual-circuit operation: precise and independent control for storage and production processes.
  
  
• Energy optimization: efficient heat exchange via a high-performance water-loop architecture.
  
  
• Operational reliability: stable performance ensured by BITZER compression and Danfoss regulation.
  
  
• Natural refrigerant: CO₂ system reducing environmental footprint and long-term emissions.
  
  
• Future-ready modular design: scalable configuration supporting future plant expansions.
  
  

Discover More

At Friga-Bohn, we deliver cooling solutions with care — designed to meet the real needs of the food production and cold storage industries. From CO₂LD Subline systems and NOVA evaporators to gas coolers, glycol-cooled solutions, and hybrid technologies, our products combine long-lasting performance, reliability, and energy efficiency.

Planning a food processing or cold storage project? Contact our experts or explore our complete product portfolio.