Transcritical CO2 refrigeration systems combining MT and LT refrigeration in the one unit. Ideal for large store applications. Available for installation indoors or outdoors with sound-proofed cabin, and with on-board electric panel.
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The Arneg Booster Transcritical CO2 refrigeration systems has

  • MT capacity from 91 to 240kW (3-5 compressors)
  • LT capacity from 17 to 53kW (2-4 compressors)
  • Parallel compressor
  • Variable speed device on MT1, LT1 and parallel compressors
  • Heat recovery (up to 2)
  • Liquid receiver backup unit
  • Optional ejector

Arneg CO2 Solutions



Two Lenghts 4275 or 5250; W 1170; H 2200 (measurements of the soundproof closed version)

Refrigerant charge(s) lbs/kg

It depends on plant's dimension. Liquid receiver volume available upon request.

Capacity, kW/TR/BTU/hr

MT: from 91 to 240 kw @ -8°C; LT: from 17 to 53 kw @ -33°C

Type, number compressors HP

Semihermetic compressors: MT = from 3 to 5; LT = from 2 to 4

Type of controls

Carel, Danfoss, Dixell, Eliwell, RDM, Wurm, Eckelmann

Type oil separator


Discharge gas desuperheater, subcooling

Yes for both

Heat reclaim

Yes, up to 2

VFD for compressors

Yes, 1st MT compressor, 1st LT compressor, 1st parallel compressor

Type of piping

Copper K65, Copper R220, Stainless steel

Ejectors, Parallel compression

Yes for both





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