There has been a lot of discussion about the best method of cleaning micro channel coils. However, in order to properly clean them, you must first gain a better understanding of them. Here's a quick overview of micro channel technology, as well as information on how to properly clean micro channel coils.
What are micro channel coils, and how do they work?
To put it another way, micro channel coils are made up of flat tubes with tiny channels or tunnels running throughout them. The refrigerant is transported through these tunnels. In contrast to this, traditional coils had only one larger tube, which was generally round, which carried the refrigerant and was therefore less efficient. The surface volume of a flat tube with multiple tunnels in it can be dramatically increased by operating it in this manner. This allows the system to operate at a significantly higher level of efficiency. Now, these coils are also made of aluminum, which provides some corrosion protection that is superior to that provided by copper or copper/aluminum alloys, as well as other materials. For more in-depth information on what micro channel coil technology is, visit the carrier's website by clicking on the link provided.
What is the most effective way to clean micro channel coils?
Proceed with caution. That is the most effective method. For starters, if you intend to use a coil cleaner chemical, make certain that it is neither too acidic nor too alkaline. Your best bets are a foaming coil cleaner like SpeedyFoam or, even better, Power Coil Clean from BBJ, which is pH neutral.
Second, if you intend to use pressurized water or a water/cleaner mixture, make certain that you are employing a specialized machine or nozzle for the task in question. When cleaning condenser units with thick micro channel coils (over 1 inch in diameter), a combination of medium water pressure and high water volume is the most effective combination for thick coils. Smaller micro channel coils (less than 1 inch in diameter) require less water volume, but at least 100 psi peak cleaning pressure is required. The application of direct spray pressure greater than 140 psi without the use of a specially designed spray pattern nozzle will result in the folding of your fins.
When cleaning evaporator coils, it is preferable to use a coil cleaner that uses as little water as possible while still providing 100 psi or more. It has a lot of cleaning power, but it won't overburden your condensate pans or pumps. The bottom line is that when it comes to cleaning micro channel coils, you should use the proper tool for the job in question. You want to make sure that your spray is directed directly onto the fins and that it is done in a fan pattern. Cleaning coils saves money because it increases the efficiency and longevity of the system. This isn't a hypothesis; it's a scientifically established fact.
According to him, "when using commercially available cleaners, always read and follow the directions carefully.""They typically state that the coils must be thoroughly rinsed to ensure that all detergent and debris has been removed."In addition, only use coil cleaners that are specifically designed for coils, he cautioned, because some coil cleaners that are not specifically designed for coils can be harsh and attack the copper or aluminum. According to Gurley, "the most important thing is to keep the coils clean.""If they are dirty, they will not be able to exchange heat properly."Cleaning coils, on the other hand, entails more than simply dumping water on them. Different cleaning methods should be used depending on the coil type, the type of debris, and the type of system in order to achieve the best results possible. Small-diameter copper tube coils are intended to provide many of the same advantages as micro channel tube, including their small size, light weight, low material costs, high heat transfer coefficients, and low refrigerant charge. Small-diameter copper tube coils are designed to provide many of the same advantages as aluminium micro channel tube, including their small size, light weight, low material costs, high heat transfer coefficients, and low refrigerant charge.
Maintaining the cleanliness of these coils is just as important as maintaining the cleanliness of aluminium micro channel tube, but the procedures are slightly different due to the difference in construction. For example, the tubes in round-tube plate-fin coils are round, contrary to the flat shape of the tubes in micro channel tube, which is indicated by the name.