lactalis

Leclerc (35)

Transcritical CO₂ Remodeling

Leclerc (35)

Transcritical CO₂ Remodeling
lactalis

Issues

  • Complete renovation of the hypermarket’s sales floor and cold storage rooms, featuring a sustainable CO₂ solution to replace R404A

Solutions

2 transcritical CO₂ systems: Positive temperature: 246 kW + 246 kW; Negative temperature: 38 kW + 30 kW

  • 450 linear meters of positive-temperature refrigeration
  • 57 linear meters of negative-temperature refrigeration
  • 45 positive-temperature cold rooms
  • 3 negative-temperature cold rooms
  • 1 ice machine with a 2-metric-ton silo and conveyor for ice delivery
  • 1 water-to-water heat pump

Maintenance contract

Benefits

Decarbonization:

  • Choice of a natural refrigerant (CO₂)
  • 880 metric tons of CO₂ equivalent avoided per year

- 20% energy savings: 

  • Variable-speed operation on medium- and low-pressure compressors
  • Heat recovery used for domestic hot water and store heating

- Safety: 

  • Dual backup system: high-pressure valve, gas flash valve, and control panel
  • CO₂ detector in the machine room with indicator light, buzzer, and remote monitoring alert