ESCO Air Conditioning Practice Exam

Why is it essential to avoid liquid slugging in a compressor?

1. It causes excessive noise

2. It decreases the efficiency of the condenser

3. It can damage the compressor

4. It increases refrigerant levels

The correct answer is: It causes excessive noise

Avoiding liquid slugging in a compressor is essential because it can cause significant damage to the compressor. When liquid refrigerant enters the compressor instead of vapor, it can cause hydrostatic lock, leading to increased pressure within the compressor. This increased pressure can damage internal components, such as valves, pistons, and motor windings. Additionally, the sudden impact of liquid refrigerant hitting the compressor can create excessive noise and vibrations, further contributing to potential compressor damage. Therefore, preventing liquid slugging is crucial to maintaining the compressor's functionality and longevity in an air conditioning system.