What is the normal temperature drop across an A-Coil?

The normal temperature drop across an A-Coil, which is a type of evaporator coil used in air conditioning systems, typically ranges from 15 to 22 degrees Fahrenheit. This temperature drop occurs as the refrigerant absorbs heat from the air flowing over the coil, leading to a reduction in air temperature that can be delivered into the conditioned space.

This range indicates that the system is effectively removing heat and dehumidifying the air, which is crucial for both comfort and efficiency in HVAC operations. A temperature drop that falls within this range suggests that the evaporator coil is functioning properly and that the refrigerant is circulating as intended, allowing the system to maintain the desired indoor temperature effectively. An understanding of this normal range is vital for technicians in diagnosing performance issues in air conditioning systems.