Equipment and capacity
Installed units, system types, rated cooling output and the spaces served help establish the inspection scope.
01
The inspection, explained
TM44 is the recognised approach used to assess the energy performance of air-conditioning systems. The assessment looks at the equipment you have, how it is controlled and whether its operation suits the building. It is an energy inspection, separate from routine servicing.
02
What the assessor reviews
Controls and settings
Operating schedules, temperature settings and control arrangements help explain how cooling is used.
Building use
Occupancy and the activities in each area provide context for the assessment.
Opportunities to improve
The report records findings and recommendations that can inform your next maintenance or energy review.
03
Is your building in scope?
In England, systems with a combined effective rated output of more than 12kW generally require an inspection. Several smaller units under the same control can count together. An equipment schedule is useful; a count of indoor units alone may not establish the cooling capacity.
04
What you receive
Your completed assessment sets out the systems reviewed, the findings and recommendations. The report is lodged on the official register. Keep it with your building records and use the inspection date when planning the next assessment.
05
What it does not replace
Routine maintenance
Servicing, cleaning, repairs and fault finding remain separate tasks.
Refrigerant obligations
F-gas checks and refrigerant records are separate from this energy inspection.
Other building assessments
An EPC or another building survey does not replace a required air-conditioning inspection.
06
Not sure what is installed?
Start with your postcode and what you know. Equipment photographs, model references, a maintenance schedule or a previous report can help establish the scope before booking.
For the official requirements, read the government guide to air-conditioning inspections ↗.