Swegon: can an existing CAV system be upgraded to VAV?

Only a very small proportion of the building stock increases annually from newbuilds. The majority of the building stock is made up of existing premises, many of which are currently energy-inefficient. In 30 years’ time, a large proportion of these buildings will still be standing, which means that achieving the current climate goals will require a major renovation drive. This applies equally to outdated solutions for ventilation, heating and comfort cooling, which hold high potential for improvement. With the right solutions, constant airflow systems (CAV) can easily be upgraded to variable airflow (VAV). In that way, both the building’s energy performance and the quality of its indoor climate can be improved, which, in turn, has positive impact on the building occupants.