Before we explain what a TM44 Report is we should look at how air conditioning works.
- Warm air is pulled through a grille at the bottom of the machine.
- The air flows over chiller pipes through which a coolant fluid circulates. This part of the air con unit works just like the chiller cabinet in your refrigerator. It cools down the warm incoming air. A dehumidifier removes excess moisture.
- The air flows over a heating element (similar to the one in a fan heater). On a cold day, this part of the unit can be turned up so the air-con unit works as a heater.
- A fan at the top, blasts the air back through another grille into the room. If the heating element is turned down, the air re-entering the room is much cooler, so therefore cooling the room gradually.
- Meanwhile, coolant (a volatile liquid that evaporates easily) flows through the chiller pipes. As it does so, it picks up heat from the air blowing past the pipes and evaporates, turning from a cool liquid into a hotter gas. It carries this heat from inside the room to the outside of the building, where it releases its heat to the outside air. How? Same as in a refrigerator, the coolant flows through a compressor unit and some condensing pipes, which turn it back into a cool liquid ready to cycle round the loop again.
- What happens to the heat? In the unit outside the building, there are lots of metal plates that dissipate the heat to the atmosphere. An electric fan blows air past them to accelerate this process.
- Over time, the heat inside the building gradually pumps away into the outside air.
What is a TM44 Report
This report is accepted guidance for the UK which allows judgment on the efficiency of the air-conditioning units. The governments aim is net zero greenhouse gas emissions by 2050. This requires the continued reduction of carbon emissions from all buildings. The key role of this guidance is to support regular inspections to comply with the Energy Performance of Buildings Directive (EPBD).
The UK governments interpretation of embedding EPBD recognises 3 streams of certification, required by both the private and public sectors:
- DECs (Display Energy Certificates) – required by publicly-owned or funded buildings on an annual basis
- TM44 / Air Conditioning Inspections – required for all buildings with installed comfort cooling
- EPCs (Energy Performance Certificates) – required for both domestic and non-domestic new builds, majorly refurbished, sold or let out.
Do we need a TM44 report carried out on our property?
Air-conditioning systems vary widely in size. The TM44 report focuses on those that use refrigerants for cooling, and parts of other cooling methods such as, cooled decks, ceiling slabs or those using aquifers for cooling.
System of 12kW or more will require a TM44 report. This makes any building owner or manager with a system of that scale subject to TM44. It is important to note that this applies to single large-scale units with an output of 12kW and to individual units that together reach or exceed 12kW.
The legislation required that European members devise ‘measures to establish a regular inspection of air-conditioning systems of an effective rated output of more than 12 kW’. Fines are imposed by the UK government if your system has not had this reported. There is a requirement to have this report carried out every 5 years. It will be lodge on a public website so anyone can check and see if you have had this lodged, why not try it on a building you know to have more than 12KW. For example Madame Tussaud’s in London.
FFM are perfectly positioned within the UK to deliver these reports if it is required. We will also ensure that the report is lodged with central government to save you those potentially embarrassing moments. Contact us today so that it doesn’t get forgotten.