What effect does a clogged pleated media filter have on an evaporator system?

What effect does a clogged pleated media filter have on an evaporator system?

• A. Higher suction pressure at the compressor
• B. No effect on suction pressure
• C. Low suction pressure at the compressor
• D. Normal suction pressure

Answer: (C)

A clogged pleated media filter significantly restricts airflow within the evaporator system. When airflow is reduced, the evaporator coil does not receive enough air to facilitate proper heat exchange. This leads to a drop in the temperature of the coil and ultimately causes the pressure of the refrigerant in the evaporator to decrease. As the refrigerant absorbs less heat, it cannot vaporize adequately, which results in lower suction pressure at the compressor. Maintaining appropriate airflow is essential for the efficient operation of refrigeration systems. As a consequence of reduced airflow due to a clogged filter, the compressor operates under conditions that are less than optimal, which can further lead to issues such as compressor overheating or even potential failure. Understanding this relationship between airflow, temperature, and pressure is critical for anyone working within HVAC systems.

A clogged pleated media filter significantly restricts airflow within the evaporator system. When airflow is reduced, the evaporator coil does not receive enough air to facilitate proper heat exchange. This leads to a drop in the temperature of the coil and ultimately causes the pressure of the refrigerant in the evaporator to decrease. As the refrigerant absorbs less heat, it cannot vaporize adequately, which results in lower suction pressure at the compressor.

Maintaining appropriate airflow is essential for the efficient operation of refrigeration systems. As a consequence of reduced airflow due to a clogged filter, the compressor operates under conditions that are less than optimal, which can further lead to issues such as compressor overheating or even potential failure. Understanding this relationship between airflow, temperature, and pressure is critical for anyone working within HVAC systems.