ESCO Air Conditioning Practice Exam 2025 - Free AC Certification Practice Questions and Study Guide

Question: 1 / 400

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

It causes excessive noise

It decreases the efficiency of the condenser

It can damage the compressor

Avoiding liquid slugging in a compressor is crucial primarily because it can cause significant damage to the compressor. Liquid slugging occurs when liquid refrigerant enters the compressor's cylinder, which is designed to compress vapor only. This can lead to a few different types of damage, including mechanical failure due to the incompressibility of liquid compared to gas, resulting in situations such as broken pistons or damaged cylinder walls. The stress caused by liquid slugging can ultimately lead to compressor failure, which requires costly repairs or replacements.

While excessive noise, decreased efficiency of the condenser, and increased refrigerant levels may be concerns in air conditioning systems, they are not the primary reasons to avoid liquid slugging in a compressor. The risk of compressor damage is the most critical outcome to consider when discussing the importance of preventing liquid slugging.

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It increases refrigerant levels

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