New Circulating Cooler with CO₂ Refrigerant

With the new Unichiller 250 CO₂, Huber Kältemaschinenbau presents another milestone in environmentally friendly refrigeration technology. The new chiller uses CO₂ as a refrigerant. CO₂ or carbon dioxide (also known as R744) is a natural component of air and has been proven in refrigeration since the 19th century. The colourless gas liquefied under pressure, has no ozone depletion potential (ODP = 0), and has a negligible greenhouse gas potential with a GWP = 1. If, for example, 1 kg of CO₂ enters the atmosphere through a leak in the refrigerating circuit, this is 3780 times less damaging than with the conventional refrigerant R404A. In addition, CO₂ is a so-called natural refrigerant which occurs in very large quantities in nature, i.e. it does not have to be generated with great energy expenditure. In addition, CO₂ is non-flammable, non-toxic and chemically inert.

The new Unichiller CO₂ is therefore a 100% environmentally friendly alternative to refrigerators with conventional synthetic refrigerants. The Unichiller is designed for working temperatures from -20 to +100°C, and offers a cooling capacity of 25 kW and a heating capacity of 12 kW. The circulation pump achieves a delivery rate of 220 l/min and 4.7 bar pressure. The cooler is equipped with the Pilot ONE touch-screen controller and therefore has numerous professional functions for demanding temperature control tasks.

Advantages at a glance:

• Proven Unichiller technology
• Environmentally friendly refrigeration technology
• Ozone depletion potential equal to zero (ODP = 0)
• Global warming potential negligible (GWP = 1)
• Very good energy efficiency
• Refrigerant non-flammable, non-toxic
• High operational safety
• Whisper-quiet operation (just 60 dB)
• Future-proof investment (not affected by the F-gas regulation)

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