What happens to a refrigeration system if its efficiency is reduced due to oil build-up?

When a refrigeration system experiences a reduction in efficiency due to oil build-up, one significant consequence is that it may require more frequent maintenance. Oil build-up can inhibit the flow of refrigerant and impede the heat exchange process, leading to increased strain on the system components. As the system struggles to operate effectively, technicians may need to inspect and service the system more often to address the issues caused by this reduced efficiency. This can include oil reclamation, cleaning components, or even replacing parts that have been negatively affected by the build-up.

Other options do not align with the expected outcomes of oil build-up. For instance, the system would not operate at a higher capacity; instead, it would likely struggle to maintain its required capacity. Additionally, it is unlikely to consume less power, as a less efficient system typically draws more energy to achieve the same cooling effect. Finally, oil build-up does not lead to lower refrigerant costs; in fact, managing the consequences of reduced efficiency often results in increased operational costs.