Air Conditioning Certificates

Why do you need an Air Con Inspection Report (TM44)?

It is now a legal requirement that regular air-conditioning inspections are carried out by an accredited energy assessor.

The aims of the inspection are to:

  • Provide building owners/operators with information about system performance
  • Identify opportunities to reduce your CO2 emissions and save energy and money

The inspection generates a report highlighting measures which will have the potential to save energy and money within a reasonable payback period. The reports are valid for five years, after which the system will require another inspection.


Which systems require inspection?

The regulations defines an Air conditioning system as “a combination of all the components required to provide a form of air treatment in which the temperature is controlled or can be lowered, and includes systems which combine such air treatment with the control of ventilation, humidity and air cleanliness”.  Process cooling systems are not covered by the regulation and are being adopted in two phases. The first phase applies to systems with a rated cooling capacity above 250 kW and the second phase for the remaining systems over 12 kW.

The cooling capacity of an air conditioning ‘system’ is defined as “the sum of all individual cooling units under the control of one building owner or operator”.


When will the Regulations apply?
  • First inspection of all existing systems over 250 kW cooling capacity was by 4 January 2009.
  • First inspection of all existing systems over 12 kW was by 4 January 2011.
  • New systems over 12 kW installed after January 2008 must be inspected within 5 years of being put into service.


Who can inspect air conditioning systems?

Air conditioning system inspections can only be completed by a qualified and accredited air conditioning system assessor. CSR Sustain’s CIBSE Level 4 Air Conditioning Inspectors are fully accredited to undertake your air conditioning system inspection. CSR Sustain are one of the first companies in the UK able to provide both simple and complex inspections.


For further details and information on Air Conditioning Certificates please contact us.

Manchester Office: 0161 762 5670