System maintenance and energy efficiency

Energy-efficient refrigeration systems and heat pumps are not just a question of the latest compressors, fans or refrigerants; the issue stands and falls with the maintenance of the systems.

The picture below shows an evaporator of an industrial process cooling system where we have installed a sound enclosure. After removing the protective grilles in front of the evaporator, we found it to be completely dirty. Practically no air was passing through the evaporator fins and the system was constantly running at its limit in order to generate any cooling capacity at all. This not only has a negative effect on the cooling capacity, but also results in higher power consumption (current).


The picture next to it shows the evaporator after cleaning, with the evaporator fins once again air-permeable.

Important: the evaporator fins must be cleaned against the direction of air flow (blowing out). We must warn against mechanical cleaning with a broom or a high-pressure cleaner from the outside, as this only leads to the dirt accumulating between the fins and thus the dirt only being relocated.​