CO2

The right CO2solution for every need

Our ROXSTA CO2 Booster Rack Series offers sustainable cooling solutions for discounters, small and large supermarkets, hypermarkets, logistics centers, food processing, as well as industrial and process cooling.

Complementing this, the COOLSHIFT CO2 Chiller & Heatpump Series ensures efficient air conditioning and heating for buildings, supports district heating networks, and provides reliable cooling for servers and process applications.

ROXSTA – CO2 Booster Rack Units

ROXSTAmicro

Capacities up to 4 kW
Application

Plug & Play MT and LT units and cold rooms

Capacities

(t0 MT -7 °C / t0 LT -30 °C / tGC 32 °C)

Medium temperature 0.9…4.0 kW

Low temperature 0.5…2.2 kW

Details

Solution for retrofitting / expansion

Air cooled version: gas cooler / heater combination for food retail / commercial kitchens / ice making possible

Water cooled version: plate heat exchanger for combination with water chillers / dry coolers possible

Design pressure

90 bar suction line (MT/LT)

90 bar medium pressure

120 bar high pressure
ROXSTAair

Capacities up to 20 kW
Application

Individual cooling points / small stores

MT cabinets open: up to 13 m / closed: up to 25 m

Capacities

(t0 MT -5 °C / tGC 38 °C)

Medium temperature 11…20 kW

Details

Condensing unit for MT applications

1 transcritical compressor with frequency converter

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

Design pressure

45/80 bar suction line

45/80 bar medium pressure

120 bar high pressure
ROXSTAcube mini

Capacities up to 50 kW
Application

Discounters /organic shops /retail up to 1,000 m²

MT cabinets open: up to 25 m / closed: up to 50 m

1-2 LT cold rooms

Capacitiesa

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 12…50 kW

Low temperature 0…10 kW

Details

Trans- & subcritical application

2 MT / 0-1 LT – different versions for capacity control

Indoor & outdoor installation

Noise reduction 10 / 15 dBA

Heat recovery integrated or stand-alone

Receiver volume 80 L

Design pressure

30/60 bar suction line (LT)

45/60 bar suction line (MT)

45/60 bar medium pressure

120/130 bar high pressure
ROXSTAcube

Capacities up to 70 kW
Application

Discounters / supermarkets up to 1,200 m²

MT cabinets open: up to 60 m / closed: up to 120 m

LT shelf / island up to 10 m & 1-2 LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 12…70 kW

Low temperature 0…20 kW

Details

Trans- & subcritical application

3 MT / 0-2 LT – different versions for capacity control

Indoor & outdoor installation

Noise reduction 10 / 15 dBA

Heat recovery with bypass

Receiver volume 80 L

Design pressure

30 bar suction line (LT)

45 bar suction line (MT)

45/60 bar medium pressure

120/130 bar high pressure
ROXSTAcube mini S

Capacities up to 90 kW
Application

Discounters / organic shops / retail up to 1,000 m²

MT cabinets open: up to 25 m / closed: up to 50 m

1-2 LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 15…90 kW

Low temperature 0…17 kW

Details

Trans- & subcritical application

1 IT* & 2 MT (LSPM*) / 0-1 LT (ME*) – IQ module

Capacity control – CRII (MT/IT*) / Inverter* (LT)

Active oil management – TECO2mulator

TECO2nditioner

Receiver volume 84 L

Indoor & outdoor* installation

Mounted safety valves incl. blow off line*

Efficiency – Parallel compressor / LSPM motor / Ejector*

Heat recovery stand-alone*

* optional

Design pressure

30/60 bar suction line (LT)

45/60 bar suction line (MT)

60 bar medium pressure

120/130 bar high pressure
ROXSTAcube pro

Capacities up to 100 kW
Application

Discounters / supermarkets up to 1,200 m²

MT cabinets open: up to 60 m / closed: up to 120 m

LT shelf / island up to 10 m & 1-2 LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 3…100 kW

Low temperature 0…32 kW

Details

Trans- & subcritical application

2-3 MT / 0-3 LT – different versions for capacity control

TECO2nditioner

HP & MP backup valves

Heat recovery including bypass

Parallel compression

Receiver volume 165 L

Indoor & outdoor installation

Separable frame (optional)

Design pressure

30/60 bar suction line (LT)

45/60 bar suction line (MT)

45/60 bar medium pressure

120/130 bar high pressure
ROXSTAsmart

Capacities up to 200 kW
Application

Supermarkets up to 2,500 m²

MT cabinets open: up to 75 m / closed: up to 150 m

LT shelf / island up to 25 m & LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 28…200kW

Low temperature 0…65 kW

Details

Trans- & subcritical application

3-4 MT (LSPM) / 0-3 LT – different versions for capacity control

EVALIFT 2.0 & TECO2nditioner

Active oil management

Heat recovery including bypass

Mounted water pump

Parallel compression

Receiver volume 165 / 370 L

Housing for indoor & outdoor installation

Design pressure

30/60 bar suction line (LT)

45/60 bar suction line (MT)

45/60/80 bar medium pressure

120/130 bar high pressure
ROXSTA 2.0

Capacities up to 320 kW
Application

Supermarkets up to 5,000 m²

MT cabinets open: up to 200 m / closed: up to 400 m

LT shelf / island up to 100 m & LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 36…320 kW

Low temperature 0…240 kW

Details

Trans- & subcritical application

3-6 MT (LSPM) / 0-5 LT – different variants for capacity control

Seperable intermediate pressure station

Heat recovery / heat pump

Parallel compression / TEKO patent EVALIFT

Receiver volume 250 / 420 L

Housing for outdoor installation

Design pressure

30 bar suction line (LT)

45/60 bar suction line (MT)

45/60/80 bar medium pressure

120 bar high pressure
ROXSTA G6

Capacities up to 640 kW
Application

Hypermarkets / Cash&Carry up to 10,000 m²

MT cabinets open: up to 300 m / closed: up to 600 m

LT shelf / island up to 150 m & LT cold rooms

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 207…640 kW

Low temperature 0…590 kW

Details

Trans- & subcritical application

3-7 MT (LSPM) / 0-6 LT – different versions for capacity control

6 cylinder compressors

Heat recovery including bypass

Parallel compression / EVALIFT / Ejector

Receiver volume 250 / (2x)420 L

Housing for outdoor installation

Design pressure

30/60 bar suction line (LT)

45/60 bar suction line (MT)

45/60/80 bar medium pressure

120/130 bar high pressure
ROXSTAindustrial

Capacities up to 960 kW
Application

Industry, food production and logistics

MT or MT and LT with heat recovery system / heat pump / climate control function

Custom-made technology – absolute flexibility

Capacities

(t0 MT -5 °C / t0 LT -30 °C / tGC 38 °C)

Medium temperature 360…960 kW

Low temperature 0…590 kW

Details

Trans- & subcritical application

4-10 MT (LSPM) / 0-6 LT – different versions for capacity control

Heat recovery / Heat pump & AC function

Parallel compression / EVALIFT / Ejector

Receiver volume 250 / (2x)420 L

Flexible, customised technology – e.g. additional gas cooler subcooling or suction levels (MT2/LT2)

Housing for outdoor installation

Design pressure

30 bar suction line (LT)

45 bar suction line (MT)

45/60/80 bar medium pressure

120/130 bar high pressure

COOLSHIFT – CO2 Chillers & Heat Pumps

COOLSHIFT M / L / XL

CO2 Chiller & Heat Pump
Application

Building air conditioning & heating

Industrial & process cooling

Data centers & server cooling

Local & district heating networks

Details

CO2 chiller: air- or water-cooled

CO2 heat pump: air/water, water/water, or air/air

Sizes M / L / XL

Capacities

COOLSHIFT M: Cooling up to 180 kW / Heating up to 300 kW

COOLSHIFT L: Cooling up to 450 kW / Heating up to 600 kW

COOLSHIFT XL: Cooling up to 1,5 MW / Heating up to 2 MW

Equipment

Low-pressure ejectors

Low-pressure oil system with refrigerant separator

Efficient compressors (optional LSPM)

Capacity control via inverter or cylinder deactivation

Brazed plate heat exchangers

Refrigerant receiver

Active oil management (optional)

Heat recovery (optional)

Weather & soundproof housing (optional)

Control systems: Wurm / Carel

Efficiency

Simultaneous cooling & heating

Up to 8 K ejector lift – reduced compressor consumption

High supply temperatures in heat pump mode up to 90°C

Optimal efficiency at low return water temperatures

Climate- & environmentally friendly

Pressure Levels

90 bar low pressure

130 bar high pressure