ESCO Air Conditioning Practice Exam

An oversized air-conditioning system can lead to which issue?

1. High refrigerant charge

2. Inefficient dehumidification of the conditioned space

3. Low airflow

4. Noisy compressor

The correct answer is: High refrigerant charge

An oversized air-conditioning system can lead to high refrigerant charge because when a system is too large for the space it is cooling, it tends to short cycle. Short cycling occurs when the system quickly reaches the set temperature and shuts off before properly dehumidifying the air. This leads to the refrigerant not being able to fully circulate and absorb heat, resulting in an accumulation of refrigerant in the system. This can cause issues such as decreased system efficiency, increased wear and tear on components, and potential damage to the compressor. Regarding the other options: - Inefficient dehumidification of the conditioned space is a common issue with oversized air-conditioning systems, but it is not the most immediate issue related to high refrigerant charge. - Low airflow can occur for various reasons but is not directly related to an oversized system. - A noisy compressor can also be a symptom of an oversized system, but it is not the specific issue caused by high refrigerant charge.