An introduction to HFC Phase Down

Over the next 15 years the HVAC-R Industry is set to see major changes to legislation which will see banning of refrigerants in some applications. These changes will bring new challenges to the industry to help move towards a greener environment by lowering global impacts that some refrigerants have on the environment.

From the 1st of January 2015 R22 Refrigerant was banned in the UK as it is classed as a ODS (Ozone Depleting substance). Any units which are still using this gas cannot be serviced or maintained which is why the industry is seeing many units which utilise this gas being replaced. It is not illegal to run units that run on R22, and there are many building operators who remain unaware that these systems may require immediate replacement if it requires any works to be carried out on the system such as maintenance or degassing.


The next generation of  Refridgerant- What should be considered

  • Safety
  • Energy Efficiency
  • Natural Resource Efficiency
  • Global Warming Potential
  • ODP (Ozone depletion potential
  • Affordability


The current market offers units which utilise R410A which currently replaces R22. The launch of R32 has been slowly introduced from early 2017 as it has a lower global impact than R410A.

  • R32 is 6% more energy efficient than R410A in a 4kw system
  • Smaller charges mean that heat exchangers and other components can be smaller, making equipment more compact (18% smaller when compared with 4kw system using R410A)
  • R32 is a single component refrigerant which means it can be reused and recycled, unlike R410A


To Conclude

R22 is slowing being phased out due to its ban in the UK. The preferred gas over R410A is R32 which is slowly being introduced into the Air Conditioning, Heat pump and Refrigeration industry. End users will have to adapt to using the next generation of gases available to reduce the environmental impact. The introduction of the new R32 will bring challenges to the industry, however all manufacturers are working hard to ensure that installers are ready, providing clear information on the new refrigerant and offering training on its safe handling. Advice will be available from manufactures to consultants and end users to be sure that informed choices are made when designing and selecting HVAC-R Systems over the next 10-15 years.


Click the link below to find out how to identify which refrigerant is in your system.

link here