New homes being built are using materials that can cause leaks in your evaporator coil. Chemicals on and in materials, such as wood, carpet, and paint can create a chemical reaction with your evaporator coil which leads to a leak, causing you to replace your evaporator coil sooner than anyone would expect. HVAC technicians have isolated the problem, HVAC manufacturers have verified an appropriate solution and have begun the distribution of new evaporator coils that won’t have the same chemical reaction leaks, yet work just like the original evaporator coils.

How Your Evaporator Coil Works

Your evaporator coil is made out of copper lines that run through metal fins controlling the temperature of the air passing over it. Refrigerant travels inside of the evaporator coil at very low temperatures and absorbs the heat out of the air moving through your air conditioning ductwork and home. The evaporator coil controls the temperature you feel inside your home, and when it’s not operating properly, you will not be comfortable inside your home.

How VOC’s Affect the Copper Evaporator Coil

Newer homes have been built with materials that contain VOC’s (volatile organic compounds) and when mixed with oxygen and water on copper, formicary corrosion is created that deteriorates copper. Where are all of these located? That would be directly on your evaporator coil. Here’s how it happens. Condensation is produced on your evaporator coil, then oxygen and VOC’s are transferred through your air conditioning ductwork and over your evaporator coil. This combination leads to formicary corrosion, which looks like tiny green spots, directly on the copper in your evaporator coil, causing deterioration of the copper pipes, leading to leaks. The only way to fix the leak is to patch the leak by brazing it, or by replacing the whole coil itself.

Aluminum Coils Solve the Corrosion Problem

So what did HVAC manufacturers do to fix the problem? They found another metal that can absorb heat using refrigerant just like copper but isn’t affected by formicary corrosion. The solution turned out to be aluminum. Instead of using copper inside of evaporator coils, HVAC technicians are now installing aluminum evaporator coils with copper used at the ends allowing the evaporator coil to be brazed in place properly. So if formicary corrosion is affecting your evaporator coil, and you make the decision to replace it, ensure that your new evaporator coil is aluminum.

Getting Rid of VOC’s

Integrity Comfort Solutions also suggests installing equipment that will rid your home of the VOC’s that are traveling through your air. Two methods that are often suggested is the installation of an ultraviolet (UV) light. A UV light not only burns off the VOC’s but also burns off 99.99% of airborne contaminants that travel through the air conditioning ductwork and into the air handler. Method number 2 is installing a media filtration system that can catch more dust, dirt, hair, and additional contaminants, plus the media filter only has to be changed once every six months.

Integrity Comfort Solutions has the information, tools, and highly trained HVAC technicians who take pride in their work to ensure your home is cooling properly, and safely. Everyone here at Integrity Comfort Solutions understands what it’s like to have an improperly functioning air conditioning system in Houston Texas. We have the capabilities of getting your system back up and cooling your home in no time. If you are currently being affected by formicary corrosion on your evaporator coil, please give us a call us at (281) 346-3095 and we can send one of our skilled HVAC technicians out today.