EDEKA Zurheide Düsseldorf

2 x CO2 solution ROXSTA 2.0

Application

EDEKA Zurheide Feine Kost (Düsseldorf) – of the retail outlet: 12,000 m2

  • Cooling of the refrigeration cabinets (MT-storage racks, MT- & LT-counters) & Cold storages (meat, sausages, dairy produce, LT)
  • 178 Cooling points: 45 m service counters / 63 m self-service counters / 22 m substructure cooling / 111 m chiller storage racks with glass doors / 80 m chiller enclosure with glass doors / 43 m LT-cabinets with glass doors / 13 m Jumbo LT-areas plus 2 head sections / 5 units Ice maker each 550 kg
Refrigeration specialist

Kehrein & Kubanek Kälte- und Klimatechnik GmbH (Moers)

Technology in use

2 x ROXSTA2.0

  • Refrigerant: CO2 (R 744)
  • MT: 140 kW (t0 -8/tGK 36°C) – 4 Bock-compressors (1 compressor with frequency converter)
  • LT Booster: 33 kW (t0 -32/tGK 8°C) – 3 Bock-compressors (1 compressor with frequency converter)
Special features
  • Heat recovery COOL2HEATbasic for water heating & supporting heating installations: max. 135 kW (30/45°C)
  • Parallel compression
  • Cooling of goods / natural cooling of the market space
  • Gas cooler bypass / gas cooler heat pump / gas cooler partial area shut-off
  • Suction gas heat exchanger for each suction pressure stage
  • Frequency converter for each suction pressure stage (parallel compressor, MT, LT)
  • Electronic suction throttle
Control

Wurm control electronics FRIGOLINK HCO2-G4: Compound, medium pressure and high pressure valves, gas cooler control with bypass switching, heat recover unit (COOL2HEATbasic) and all cooling points.