• CO2 condensing unit up to 20 kW
  • Individual cooling points / Small stores
  • 1 transcritical compressor with frequency converter
  • Solution for retrofitting / extension
  • Framework in corrosion category C3
  • Intermediate pressure container (20 L)
  • Control panel with electronic control
  • Flash gas heat exchanger
  • Installation variants:
    • Indoor installation with 2 EC radial fans
    • Outdoor installation with 2 EC axial fans 
  • Control systems – Wurm / Danfoss / Carel

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The TEKO ROXSTAair combines machine technology with condenser technology in a space-saving weatherproof housing. The unit is suitable for installation with smaller MT systems. 

Installation options
Save yourself a separate machine room. 

  • Indoor installation with 2 EC radial fans
  • Outdoor installation with 2 EC axial fans

Plug & Play – little assembly effort
The piping including HP and LP safety valves is located inside the housing. Only the liquid and suction lines need to be piped, which simplifies installation and saves time.

(t0 MT -5 °C / tGC 38 °C)

  • Medium temperature 11…20 kW
    1 transcritical CO2 compressor

Design pressure of the TEKO ROXSTAair

  • 45/80 bar suction line
  • 45/80 bar medium pressure
  • 120 bar high pressure

Sound data
54 dB(A) in 10 m (Sound measurements under laboratory conditions (airborne sound at 50 Hz). Despite careful control of the content, we do not assume any liability for the correctness and completeness of the data.)


1,575 x 965 x 1,630 mm

Refrigerant charge(s) lbs/kg


Capacity, kW/TR/BTU/hr

11-20kW MT (t0 MT -5 °C / tGC 38 °C)

Type, number compressors HP

MT 1 transcritical CO2 compressors

Type of controls

Wurm Systems / Danfoss / Carel

Oil separator


Discharge gas desuperheater, subcooling


Heat reclaim


VFD for compressors

Frequency converter

Type of piping


Ejectors, parallel compression



TÜV Süd according to Pressure Equipent Directive 2014/68/EU Annex III, Module D


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