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Low global warming refrigerant for screw chillers and heat pumps

The challenge of climate change
Customers look to Carrier to develop sustainable solutions for refrigerants, especially given climate change considerations. For decades, the industry relied on chlorofluorocarbon (CFC) chemicals as refrigerants due to their energy efficiency, safety and economic benefits. In the 1970s and 1980s, scientists began to observe that CFCs contributed to the depletion of the Earth’s stratospheric ozone layer that blocks harmful ultraviolet radiation from the sun. This led to an international accord to phase out ozone-depleting substances. Carrier did not wait for international mandates to move. Carrier introduced the first commercial and residential air conditioning systems using non-ozone-depleting refrigerants in 1994 and have since led the industry away from ozone-depleting substances.

Carrier always committed to the lowest ecological footprint

The refrigerant charge and energy consumption are the two main contributors to the carbon footprint of chillers and heat pumps, a fact recognized by Carrier in its research & development investments well before the topic hit the headlines.

  • High performance design: The impact of the machines on global warming is mainly due to the primary energy used for their operation. Carrier designs products that achieve optimized energy performance throughout the year and limit the indirect release of CO2 associated with the consumption of electricity. From the design stage, Carrier works on optimizing its manufacturing process to produce highly reliable products. A limited number of welding joints avoids possible leaks at the source. All Carrier machines are tested in special booths to ensure they are leak-proof.
  • Minimized refrigerant charge:   By 2006, Carrier became the first company to introduce the all-aluminium microchannel heat exchanger (MCHE) technology in the commercial air conditioning industry. Since 2011, a new generation of microchannel is available: Novation® Microchannel. 
  • Life cycle approach: Carrier products are extensively tested and maintained to a very high level, thanks to an extended service offering to ensure the best performance during the entire life cycle of the equipment.

Carrier at the forefront of innovative technology:

Carrier has been working over the past years on selecting the right refrigerant for the future and has now taken the lead in introducing the next generation of refrigerants on screw units. Carrier is now ready to offer a range of new customized solutions using a refrigerant with zero impact on the ozone layer and nearly zero global warming potential: HFO-R1234ze.

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