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PUREtec™ refrigerants

The environmental excellence solution.
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The challenge raised by the European Union’s F-gas regulation means the entire industry must move to a new generation of refrigerants that will not only protect the ozone layer but also have a very low global warming impact. Carrier is facing this challenge and proposes PUREtec™ refrigerants:

  • A family of long-term refrigerant solutions
  • Selection of the HFO R-1234ze and R-1233zd for screw units. It offers a Global Warming Potential (GWP) index below 1 and is not impacted by the F-gas regulation
  • Zero Ozone Depletion Potential (ODP)
  • Energy efficiency gains of up to 5% when compared with units using R-134A
Refrigerant GWP categories

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Very high R-404A
High R-1334a, R-410A, R-407C, R-452A
Medium R32, R32/HFO blends, R-134a/HFO blends
Low HFO blends
Very low HFO blends
Ultra low R-744 (CO2), R-717 (NH3), R-290 (Propane)
HFO's: R-1234yf, R-1234ze, R-1233zd
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A complete HFO range of chillers and heat-pumps with an extended operating range: up to 85°C

AIR-COOLED
SCREW CHILLERS

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30KAVZE / 30KAVPZE
30XBZE / 30XBPZE

WATER-COOLED
SCREW CHILLERS

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30XW-PZE
30XW-VZE


WATER-SOURCED
SCREW HEAT-PUMPS

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30XWHPZE
30XWHVZE
61XWHZE
Carrier's PUREtec™ refrigerants extensive research program
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Approximately 320 refrigerants evaluated on:
  • Ozone Depletion Potential (ODP)
  • Global Warming Potential (GWP)
  • Toxicity
  • Flammability
  • Performances
  • Applied cost impact
  • Technology impact
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HFO R-1234ze, the best candidate to replace HFC-R134a for all screw units:
  • Limited impact on global warming GWP <1* (similar to natural substances: CO2 GWP=1)
  • Not affected by the F-gas 2014 phase down plan
  • Highly efficient: supporting low primary energy consumption
  • Extended operating envelope allowing new application opportunities
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Association of components:
  • New refrigerant and associated lubricant
  • All chillers’ subsystems components, including Carrier’s proprietary technology: compressors and heat exchangers to ensure proper and reliable operation
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  • Extensive run tests in Carrier’s laboratory for air and water-sourced screw chillers and heat-pumps
  • Notified bodies involved in the unit quality certification
  • Dedicated control algorithm to optimize machine operation

*Based on IPCC 5th assessment report (GWP 7 according to the 2010 assessment of the SAP of the Montreal protocol)