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CO2 Applications
TrilliumSeries™ Condenser Bookmark and Share

The TrilliumSeries™ Condenser empowers transcritical CO2 applications throughout the United States.

There are many benefits of CO2 refrigeration systems including:

  • No regulatory liability or restrictions
  • No expensive future retrofits due to refrigerant phase out
  • Reduced system carbon footprint with global warming potential of “1” and ozone depleting potential of “0”
  • Low installed cost due to lower refrigerant prices and no refrigerant tax

With an estimated  2,885 European food retail stores using CO2 transcritical refrigeration systems, their application is constantly expanding to other countries including Canada and the Northern part of the United States. Energy efficient, economical refrigeration systems are normally limited to colder climates due to the limitations of air cooled gas coolers.

However, by using the TrilliumSeries™ Condenser’s unique adiabatic design, it is possible to eliminate their restrictions due to warmer climates and save additional energy in cooler ones.

TrilliumSeries™ Condenser Transcritical CO2 Benefits:

  • Lower Total Cost of Ownership
  • Reduced Compressor Work
  • High Efficiency VSEC Motors
  • No Water Treatment
  • Intelligent Controls
  • Lower Operating Pressure

On-Demand Adiabatic™ Pre-Cooler Mode


The critical point of CO2 is 85°F which means that the system is a condenser in subcritical mode when the high side is below 85°F and is a gas cooler in transcritical mode above 85°F.

Condenser Type Air Cooled TrilliumSeries™ Condenser
Summer Conditions 95°F Dry Bulb 95°F Dry Bulb/75°F Wet Bulb
Air Temp to the Condenser 95°F 78°F to 80°F
Gas Temperature 230°F in, 105°F out 176°F in, 87°F out
Gas Pressure 1,500 psi 1,100 psi


The TrilliumSeries™ Condenser allows energy efficient operation of CO2 transcritical systems throughout the U.S. by reducing the refrigerant temperature from 105°F to 87°F.

Using the TrilliumSeries™ Condenser drastically reduces your direct and indirect carbon emissions while making energy efficient designs possible in any climate!

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