Danfoss has won the 2004 AHR Expo Innovation Award in the refrigeration category for its TN hermetic compressor for CO2. The Innovation Awards, jointly sponsored by ASHRAE and ARI, are designed to encourage innovation and recognise significant developments. The compact TN compressor constitutes an environmentally friendly, sustainable alternative to CFCs, HCFCs and HFCs. It has a capacity of 0.5-1.2 kW for an evaporating temperature of -10°C and a gas cooler outlet temperature of 35°C in a transcritical CO2 cycle in 32°C ambient. Its applications include hot-water heat pumps, bottle coolers, vending machines and display cabinets.