Airflow Of A Evaporator Coil In A Attic Hvac Unit

The evaporator coil is the part of your ac system that actually cools the air before it is blown into your home.

Airflow of a evaporator coil in a attic hvac unit. R 22 is so expensive in fact that most hvac professionals would advise replacing the entire unit not just the evaporator coil if you have a refrigerant leak anywhere in the system. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. The evaporator coil can be a magnet for dust debris and other contaminants this is because it is installed within the airstream of your hvac system. Well mainly it s a way to save space.

It s critical to have your evaporator coil inspected annually and most dyi ers are more than capable of cleaning the external surfaces facing the duct airflow. The external surfaces of the evaporator coil that face the airflow in the duct are accessible and cleaning is generally within the skill level of most do it yourselfers. So if your evaporator coil has sprung a leak and your unit uses r 22 it could get very expensive to replace the coil and then recharge your unit with more r 22. In fact the evaporator coil often fails due to issues with the condenser coil.

Most homeowners never actually see the evaporator coil because it is covered by a metal case that is usually in an indoor closet or attic. However if dust or dirt contamination is so extensive that the inside coil surfaces are affected too schedule a more extensive heavy duty cleaning procedure with your hvac. The condenser coil on the outside unit is just as important as the evaporator coil on the indoor unit. So why put an hvac system up in the attic at all.

As the condenser fan spins it attempts to draw air across the condenser coil and through to the evaporator coil.