What is the consequence of not flushing a new part after removing its seals?

Not flushing a new part after removing its seals can lead to a risk of contamination, which can negatively impact the performance and longevity of the HVAC system. When seals are removed, debris, dirt, or moisture can enter the system from the surrounding environment or from the part itself. This contamination can disrupt the efficiency of the refrigerant cycle, cause chemical reactions, and lead to system failures over time.

Contaminants, such as solid particles or oils, can impede the smooth operation of components like compressors and expansion devices, resulting in reduced efficiency, higher energy costs, and potential damage to the system. Therefore, performing a proper flushing procedure to cleanse the new part before installation is essential to ensure that the system operates correctly and reliably.