For your heating and cooling systems, installation of hvac uv light or ultraviolet light can help keep the evaporator coils and condensate pans of the system clean. Natural sunlight is responsible for cleaning the outdoor air. However, this natural process is not possible in most building structures. That is why the artificial HVAC UV light is created.
An HVAC UV light is usually placed directly inside the HVAC duct system, over the air conditioning coils. Another one is also placed inside the return duct, before the air handler unit. With the operation of the HVAC system, the HVAC UV light kills the bacteria and mould present in the air system. It inhibits as well the reproduction of other airborne microorganisms such as fungi, viruses and allergens.
How It Works
When the air enters the duct system, it passes by the UV light. Going by the HVAC light, the contaminants that came with the air are removed. For those that survived the first passing, eventually these air pollutants will be eliminated as they are continually exposed to the HVAC UV light rays while being transported throughout the system. This is particularly a fact in larger HVAC systems.
HVAC UV Light Filters
Some HVAC systems are installed with UV light filters and others, included in their system package. Before air reaches the HVAC fans, the heated or cooled air goes through the compartment of the UV light filter. Within the compartment, the UV lights are intermittently turned on and off. Together with the power of the light and the time it is turned on, certain percentage of airborne organisms are killed directly. If you are concerned with the quality of the airflow in your home, hire an HVAC contractor to install an HVAC UV light to your system.