Moisture and contaminants can enter the refrigeration system from which of the following sources?

Moisture and contaminants can infiltrate a refrigeration system from various sources, each of which plays a significant role in compromising the integrity and efficiency of the system.

When considering system leaks, they create pathways for external air to enter the closed-loop refrigeration cycle, which may carry moisture and particulates along with it. Even minute leaks can lead to significant issues over time, as they allow water vapor and contaminants to accumulate in the refrigerant, adversely affecting system operation.

Poor service practices are another crucial factor. Inadequate maintenance or improper servicing techniques can introduce contaminants into the system. For instance, if components are not cleaned properly before installation, or if non-approved refrigerants are used during servicing, it can result in contamination that impairs performance.

Contaminated oil or refrigerant directly impacts the efficiency and reliability of the refrigeration system. If either of these fluids is not clean or is of substandard quality, it can introduce moisture and debris, leading to corrosion, freezing, or blocked passages within the system.

Given that each of these factors—system leaks, poor service practices, and contaminated fluids—can independently or collectively contribute to the presence of moisture and contaminants in the refrigeration system, the comprehensive answer that encompasses all these sources is indeed that moisture and