Air Conditioning Group

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The Air Conditioning Group is the largest in the HEVAC Association and comprises companies that manufacture, supply or install air conditioning equipment or systems.

F Gas Support guidance documentation published - 5/1/2015

Changing F Gas use and bans 

More Guidance is now available on detailed implementation of the new 2014 Regulations following publication by DEFRA of 30 updated F Gas Support Guidance notes

In addition ACRIB has published two notes: Calculating CO2 equivalents and Guidance on the use of R404A - available here.

The DEFRA F Gas Support detailed guides for users, contractors and suppliers cover the following topics:

  • IS 1    Domestic Refrigeration
  • IS 2    Commercial Refrigeration
  • IS 3    Industrial Refrigeration
  • IS 4    Transport Refrigeration
  • IS 5    Stationary AC and Heat Pumps
  • IS 6    Mobile Air-Conditioning
  • IS 14   RACHP Contractors
  • IS 16  RACHP Manufacturers
  • IS 17   Producers, importers, exporters
  • IS 18   F-Gas Wholesalers
  • IS 19   Customer Screening
  • IS 20   Annual Reporting
  • IS 25   Understanding CO2 thresholds
  • IS 26   Summary of bans  
  • IS 27   Flammability issues
  • IS 28  HFC Phase Down Process
  • IS 29   Low GWP Alternatives
  • Training for Stationary RACHP and refrigerated transport

Download the F Gas Support Guides here 


NEW in Dec 2014 - Carbon Trust's ETL spreadsheet for Heat Pumps


HEVAC Guide to Good Practice: Air Handling Units - 1991  (Download)

Air handling units vary greatly in size, function and complexity.  Whether they be small or large, simple or complex, there are certain points to observe and pitfalls to avoid.  It is the aim of this publication to guide the reader towards good practice, so that when the unit is installed it will perform in accordance with expectations.

The components most commonly utilised within air handling units are dealt with individually and for each heading there has been gathered a list of do’s and don’ts distilled from many years of experience.  Fans though are not covered specifically since there is a separate HEVAC ‘Fan Application Guide’ which should be referred to.

With such an immense variety within the scope of air handling units the topics cannot be completely comprehensive, however, the major and most important aspects are fully covered.