Coil cleaning should be done as part of a routine maintenance visit by a Trane Comfort Specialist. Before your specialist arrives take care to remove any flowers, bushes, weed or grass that has potential to get inside the unit and remember foliage should be at least 2 feet away from the unit. You can expect your specialist to perform the following steps for Disconnect power to the air conditioner: A Trane Comfort Specialist will look for the shutoff box outside near the unit. there is not shutoff box, you will need to show the specialist where the circuit breaker is located to turn the power off there. Remove outer case: Depending how the outer case of access panels are attached, your specialist will need either a screw or nut driver to do this. Remove top of air conditioner: Some air conditioners are constructed with the fan assembly attached to the top. conditioner is constructed this way, your specialist will be careful

not to stretch or damage any wires. Clean and lubricate assembly: Your specialist will clean any dirt off the fan blades and use a shop vacuum to clean dirt off the fan motor and shaft. If the motor requires any lubrication, a small amount will be applied to each of its lubrication ports. Clean A/C coils: Dirt will be whisked away from the surface of the coils with a broom. Spray trapped dirt away from coils: After covering any exposed wires or motors with plastic, your specialist using either water or a biodegradable foaming cleaner will spray cleaner soak for 10 to 15 minutes on the coils. Remove cleaner: Spraying rinse water from the inside, your specialist will remove the cleaner and any dirt away from the air Inspect coil fins for damage: Using a special comb, your specialist can straighten any bent coil fins. Reassemble the air conditioner: Your specialist will reassemble your air conditioner now that your coils are clean.

The coil, also known as an evaporator coil or an indoor coil, is the unsung hero of any home heating or cooling system. transfer, is one of the most important factors in achieving heating and cooling efficiencies that keep your home comfortable all year long. An evaporator coil is located indoors and is either installed with your furnace or as part of your air handler. Inside the coil, the refrigerant evaporates as it absorbs heat from the indoor air thatThe coil essentially serves as a “heat exchanger,” working with your heating system in the winter and your cooling system THE DIFFERENCE OF A TRANE COMFORT™ COIL Each Trane  is designed to provide your family with outstanding comfort all year round. we strive to bring you the highest quality and performance through innovative technology and precision engineering. So when you choose the right comfort coil perfectly matched for your Trane system, you can be sure you’ll enjoy the benefits of the best home comfort system

Like all of the components in our high-quality home comfort systems, each coil goes through rigorous testing to guarantee the greatest durability and protection against refrigerant leaks. We test each coil with pressurized helium to 325 pounds per square inch. how to fix home ac blower motor to detect a leak as small as .10 ounces per year. air conditioning unit with ice on itA small amount, welow airflow from ac unit know, but because any leak will lower your system’s efficiency, anyDurability means your home will be comfortable now and for years to come. A dirty indoor coil lowers the efficiency and performance of yourTo keep your system operating at design performance, have your coil cleaned regularly.

Indoor coils are often dirty because they’re usually so difficult to access. But Trane Comfort™ coils are designed to slide out on the integrated rail system for easy cleaning. Because the insulation is encased the cabinet can be wiped down, making the job much easier for your dealer, and a clean coil will yield higher performance and cleaner air in your home.Coil corrosion is an expensive problem in the HVAC industry, leading to coil replacement or entire system replacement. Corrosion results in failure, and is responsible for about 40% of equipment failures in industrial applications, according to CED Engineering.In 2015, subscribers who read this article also: Purchased CoilShine Coil Cleaning SolutionPurchased CoilShine Mold & Mildew InhibitorDownloaded HVAC “Spring Cleaning” ChecklistsAs the authors of an article in Reliable Plant explain, coil corrosion comes in the form of either pitting or formicary deterioration. Corrosion may occur as quickly as a few weeks after an installation or it may take up to four years to present itself.

Pitting corrosion is most often caused by exposure to fluoride or chloride. Fluoride is present in municipal water supplies, while chloride is found in a variety of products including snow melt, detergents, cleaners, carpeting and fabrics. Pitting occurs when chloride or fluoride ions are transported to the metal via condensate. The ions attack the metal, forming pits that form pinholes, causing the coils to leak refrigerant.Formicary corrosion is typically caused by exposure to acetic or formic acids. These acids are present in a host of household products including cleaning solvents, insulation, adhesives, paints, plywood and many other materials. This type of corrosion is not always immediately visible and sometimes presents itself as black or blue-gray deposits. Formicary corrosion creates tunnels within the tubing that result in pinholes forming in the coils, again often leading to a refrigerant leak.Facilities located in more corrosive environments including near saltwater or in industrial sites are particularly prone to experiencing coil corrosion.

Other environments that may contribute to a higher amount of corrosive materials being expelled include areas around pools, laundry facilities, water treatment plants, sewers and high traffic areas. In such highly corrosive areas, coils have been known to fail in less than one year, according to CED Engineering.A potential cause of coil corrosion is Chinese drywall, also known as odorous wallboard. Chinese drywall is also hazardous to your health. According to an article in G3 Environmental & Industrial Hygiene, an environmental and industrial hygiene service company, the drywall was imported from China from 2004 to 2007 and installed in both residential and commercial buildings. The drywall emits sulfur compounds, which corrode metal, including air conditioning coils.The Centers for Disease Control and Prevention confirms that exposure to Chinese drywall can cause certain health problems such as irritated eyes and skin, respiratory problems and headaches. Exposure to this type of drywall can also exacerbate asthma symptoms.

You can identify the drywall by looking at the back. It should contain a label with the words: “Made in China,” “China,” or “Knauf.” Some Chinese drywall is not marked. In that case, metal corrosion including in plumbing, electrical, and natural gas lines, combined with a rotten egg odor may signify a Chinese drywall installationTo combat the problem of coil corrosion, coil manufacturers are applying coatings prior to production. In addition, there are companies offering aftermarket coatings. In a brochure, Aeris Technologies Ltd., a manufacturer of aftermarket coil-protection coatings, explains that the consequences of coil corrosion can include reduced efficiency, unattractive surface deterioration and equipment failure.Additionally, reduced heat rejection may occur, resulting in an increasing compressor temperature and lower cooling capacity, which in turn increases the power usage. Lower cooling capacity means the compressor doesn’t cycle as intended, which means increased power consumption.

As systems work harder they become more stressed, experience more breakdowns and have higher maintenance costs. A lower cooling capacity may also mean occupants aren’t very comfortable, resulting in loss of business or productivity. Preventing coil corrosion is much more effective and cheaper than replacing coils or the entire system.There are basically four types of coil coating materials: polyurethanes, epoxies, fluoropolymers and silanes, according to Reliable Plant. Choose carefully as the wrong coating, especially with aftermarket products, can reduce heat transfer and result in more expensive operating costs. An aftermarket application may affect the manufacturer’s specifications.Thinner coatings have better heat transfer while thicker coatings restrict heat transfer. Hydrophobicity, or how effectively water drains from the coil, can affect heat transfer. Water buildup may also cause mold or mildew growth. The advantages of the four types of coatings differ as to how they resist scratching and corrosion;

and heat transfer abilities.Polyurethane is inexpensive, flexible and thin, but it’s not as long-lasting as other coating options. Epoxy is cheap, but it’s usually a thicker coating and can’t be applied in the field; the coils must usually be shipped to a factory for professional application. Fluoropolymers are highly resistant to acids and solvents, and are inexpensive, but the sprays generally adhere poorly and their effectiveness wanes quickly.Silanes form a thin coating that affects heat transfer very little and they typically last longer than other coatings. But they’re more expensive and proper application is best done by a professional and usually off-site. Each coating type has varying toxicity levels. Technicians applying the coating should wear equipment as specified by OSHA and an appropriate breathing apparatus.Whether coated or not, continuing maintenance of coils is the primary way to combat the effects of corrosion. Twice annual cleaning with an alkaline coil cleaner or ph balanced coil cleaner will clear away any accumulated deposits, keeping coils safe from corrosion but also positively impacting the efficiency of your system.