The increasing concern with the environmental impact of hydroflurocarbon (HFC) refrigerants, and emergence of stringent environmental regulations have prompted a re-emergence of carbon dioxide (CO2) based refrigeration systems. CO2 refrigerant is used as a working fluid in many climate control systems such as commercial refrigeration, residential air conditioning, hot water pumps, vending machines etc.
However due to its physical properties, CO2 based refrigeration systems require much higher pressures compared to conventional systems. The higher operating pressure and broad temperature fluctuations require that all the system components, including piping need to be designed and manufactured accordingly. The most common application for CO2 refrigerants is in transcritical refrigeration systems.
Transcritical CO2 refrigeration systems require up to 37% less energy than a state-of-the-art R404A system and as a result provide significant energy efficiency savings when installed. Due to the increased operating pressures of such systems, the Kembla ECO XS system utilises the highest quality manufacturing techniques of copper tube manufacturing and high strength copper alloy materials to produce a piping system optimised for use with transcritical CO2 refrigeration systems.