How does moisture affect a refrigerant system?

How does moisture affect a refrigerant system?

• A. Moisture can form acids and cause corrosion, oil breakdown, and compressor damage.
• B. Moisture can improve lubrication and efficiency.
• C. Moisture has no effect on refrigerant quality.
• D. Moisture will cause the refrigerant to evaporate faster.

Answer: (A)

Moisture in a refrigerant system is dangerous because it reacts with the refrigerant and the lubricating oil to form acids. These acids attack metals (like copper) and degrade the oil, causing corrosion, sludge formation, and compressor damage over time. That’s why proper evacuation and dehydration during service are essential. Moisture doesn’t help lubrication or efficiency, it doesn’t just dissipate on its own, and it doesn’t make the refrigerant evaporate faster; it creates harmful chemical reactions that degrade performance and can lead to failure.

Moisture in a refrigerant system is dangerous because it reacts with the refrigerant and the lubricating oil to form acids. These acids attack metals (like copper) and degrade the oil, causing corrosion, sludge formation, and compressor damage over time. That’s why proper evacuation and dehydration during service are essential. Moisture doesn’t help lubrication or efficiency, it doesn’t just dissipate on its own, and it doesn’t make the refrigerant evaporate faster; it creates harmful chemical reactions that degrade performance and can lead to failure.