Coil Cleaning Made Easy. Clean Evaporator and Condenser Coils Faster and Easier!

If you are a commercial or industrial contractor or facility manager and are looking for the fastest, easiest way to clean your commercial HVAC coils, then you've come to the right place. If not, then stick around, and we'll try to teach you about cleaning evaporator coils and cleaning condenser coils to maintain system efficiency and longevity.

Air conditioners "coils" like evaporator coils and condenser coils are the primary method for heat exchange, whether that be removing heat from the air (cooling) or pushing heat back into the air (heating).

Generally, an air conditioning system has two sets of coils, condenser coils, and evaporator coils. These coils are usually made of copper tubes with aluminum fins, which aids in the heat exchange process. The evaporator coil, or indoor coil, is often described as the "cold" coil and works by absorbing heat from the indoor air blown over by the air handler's fan. The condenser coil or outdoor coil is the "warm" coil as it rejects the heat as a fan blows outside air over the surface. Keeping these coils clean is an essential part of your HVAC system running at top efficiency and increasing its life. Goodway has a variety of coil cleaning solutions to clean both the condenser coils and evaporator coils quickly and easily.

Coils - they're everywhere

Coils are found in HVAC and refrigeration equipment, including those used in supermarkets and restaurants. It is not uncommon to find hundreds of "through-the-wall" PTAC fan coil units in a hotel, dormitory, or apartment building. As the air moving over the coils contains dust, dirt, pollen, moisture, and other contaminants, the coils get dirty and become less efficient. In addition, the evaporator coil and its condensate pan can become fouled with pollen, mold spores, and other biological contaminants that can have adverse effects on indoor air quality. If not maintained, the moisture around the evaporator coil can become a breeding ground for bacteria and mold.

Dirty Coils Waste Energy and Cost Money

A coil fouled with dirt and grime cannot supply proper heat transfer and results in greater energy consumption. Equipment operating with dirty coils can use up to 37% more energy than those with clean coils. Additionally, a dirty system’s cooling capacity can be reduced by as much as 30%. Dirty coils increase operating pressure and temperatures that break down the compressor’s lubricant and result in equipment failure. A failed compressor means no cooling and costly repair.

Coil Cleaning Frequency

A coil cleaning program should be instituted when the coils are new, clean and should be performed with a frequency to prevent deterioration of the coils. This can be as often as four times a year (monthly cleaning is reported in some areas). If they do not already exist, install easy-to-open panels to gain access to the coils. This will make the job much easier and, consequently, more likely to be done when coil cleaning is necessary.

How to Clean Coils

If the coil is contaminated with light dust or dirt not adhered to the fins, blowing low-pressure compressed air across the fins or using a soft bristle brush may be sufficient. Applying plain water or mild detergent solution to the surface, allowing it to sit for a short time, then rinsing is employed in some cases. More aggressive deposits call for the use of stronger cleaning solutions or solvents as required.

Coils can be steam cleaned but require extra care. Steam must be applied at low pressure, and the stream kept parallel to the fins to prevent folding the fins over.

Another popular coil cleaning method employs a garden-type pump sprayer to apply foaming chemicals to the coil surfaces. The foam is allowed to dwell on the surface to saturate the fins. The foam is then vacuumed up, and the process is repeated. Finally, the coil is rinsed with clean water from a hose.

Perhaps the most popular cleaning method used in recent years is using pressure washers to clean coils. Pressure cleaning coils may increase airborne Macromolecular Organic Dust (MOD), which must be contained in the area being cleaned. Pressure cleaning should be done in the opposite direction of airflow through the coil. A cleaning solution can be applied before the pressure rinse using the built-in chemical injection system on the pressure washer or a hand sprayer. Care must be taken when using a pressure washer to avoid damaging the fins on the tubes. Water leaving the coil should be free of particulate.

If it is not, repeat the process. Goodway offers a complete line of CoilPro coil cleaning machines. The Model CC-140 is a self-contained two-wheeled cart with its own built-in water and chemical tanks that can operate on building power or an integrated rechargeable battery. It can carry 5 gallons of water or can be connected to the building water supply for continuous operation. It supplies a water stream at up to 140 PSI at 1 GPM using one of four available spray nozzles. The onboard battery and water/chemical tanks allow for use anywhere. Additional models include the CC-600 AC-powered unit, which delivers up to 600 PSI at 1.6 GPM for thicker coils, and the CC-100 backpack coil cleaner unit for extreme portability. Maintenance professionals have enthusiastically received these products, and they represent the first true real breakthrough developments in coil cleaning in a long time.

Coil Cleaning Chemicals

There are many acid and alkaline-based cleaners available to clean coils. These chemicals clean by creating a chemical reaction between the cleaner and the coil surface. This damages the coils by causing metal loss over time. Acid and alkaline-based chemicals carry with them an inherent danger to personnel and equipment.

The foaming properties of many coil cleaning formulations float debris out of the coil body and rinsed away.

While some chemicals are advertised as "no-rinse," many believe that all chemicals should be thoroughly rinsed from the surface to prevent coil damage.

To clean coils, Goodway offers CoilShine, a biodegradable, expanding foam coil cleaner detergent specifically formulated for use with the CoilPro. This is a non-acidic, non-fuming solution that can be safely washed down drains.

Don't Forget the Condensate Pan

The air drawn across a cooling coil contains water vapor that condenses and collects in a pan under the coil called a condensate pan. The pan is connected to a drain line to keep the pan from overflowing and causing damage to the air handler or other building structures. As it is generally wet, microorganisms can form colonies in the condensate pan. Cleaning the condensate pan and checking for proper drainage is an important part of the coil cleaning process.

To help prevent the growth of these organisms, the pan should be treated between cleanings with a biocide. Goodway's PanCare is one example. PanCare is formulated to prevent the build-up of slime and harmful bacteria in condensate pans. It kills 99% of Legionella Pheumophilia and Salmonella Typhi Bacteria. It also contains a rust inhibitor and an acid rain neutralizer and will work for up to 3 months on a 3 to 5-ton system.

coil cleaner

Backpack CoilPro Coil Cleaner

The Goodway CC-100 Backpack CoilPro makes your job easier. The unique battery-powered coil cleaner is the solution for all your mobile and hard-to-reach coil cleaning applications. Spray bottles and pump sprayers are not effective in penetrating most coil beds. In addition, many “coil cleaner” chemicals can actually damage the coils or create noxious fumes. After much customer input, our engineers have redesigned our unique coil cleaning system, containing all of the features needed in a truly mobile package!

Features:

  • Deep cycle 12 V rechargeable battery
  • Integrated 5-gallon water tank
  • Integrated 3-quart chemical tank

Backpack CoilPro with Dolly

The Goodway CC-100-D Dolly mounted CoilPro makes your job easier. This unique battery-powered coil cleaner is the solution for all your mobile and hard-to-reach coil cleaning applications. Spray bottles and pump sprayers are not effective in penetrating most coil beds. In addition, many “coil cleaner” chemicals can actually damage the coils or create noxious fumes.

Features:

  • Wheel and Dolly Assembly
  • Deep cycle 12 V rechargeable battery
  • Integrated 5-gallon water tank
  • Integrated 3-quart chemical tank
hvac condenser coil cleaner

CoilPro Self Contained Coil Cleaning System

The Goodway CC-140 CoilPro Battery Powered Coil Cleaner is the solution for your coil cleaning applications. Spray bottles and pump sprayers are not effective in penetrating most coil beds. In addition, many “coil cleaner” chemicals can actually damage the coils or create noxious fumes. This unique coil cleaning system is most efficient with our non-fuming CoilShine, environmentally friendly expanding foam detergent.

Features:

  • Integrated water tank
  • Integrated soap container
  • 12 V rechargeable battery
hvac evaporator coil cleaner

CoilPro CC-140 with CoilVac

The total coil cleaning system! Sames as CC-140 but with CoilVac Dry HEPA Vacuum mounted on a dolly, including filters, stainless steel tank, 6' vinyl crush-proof hose, two-piece 36" wand, 19" flexible extension wand, 3" dual bristle dusting brush, 3" long bristle dusting brush, 5" blower/bulk pickup nozzle, four-piece 29" flat wand with crevice tool tip and 6" flat brush, CoilVac mounting bracket, and tool bin. The CC-140 is designed to be flexible. The unit can be used for just about any coil cleaning application. It can operate on AC power or its integrated rechargeable battery.

Features:

  • Integrated water tank
  • Integrated soap container
  • 12 V rechargeable battery
thick condenser coil cleaner

CoilPro CC-400 Hi-Flow.

The CC-400 hi-flow coil cleaner is purpose-built to clean thick, dirty condenser coils up to 8" thick. This unit provides the best of both worlds for cleaning coils. There is plenty of water (3 GPM) and plenty of power (400 SPI), all without damaging sensitive fins. 

Features:

  • Convenient 120V power connection
  • Lightweight and portable
  • Chemical injection
  • Optional wands
commercial hvac coil cleaner

CoilPro Coil Cleaner

For washing those thick, hard-to-reach coils, turn to the CC-600 High Flow CoilPro Coil Cleaner. With an output water pressure of 300 or 600 PSI at 1.6 GPM, this unit delivers the cleaning force necessary to penetrate thick coil beds. When used with CoilShine, our environmentally friendly, non-fuming, expanding foam detergent, it will give you the cleanest coils possible. The CC-600 is designed to be used on large multiple-pass coil beds. It operates on AC power. The unit can connect to a 3/4" water line for continuous operation or draw from its own 5-gallon tanks. The operator applies a thick layer of CoilShine, Goodway's expanding foam detergent, using the custom foaming nozzle.

Features:

  • Integrated 5-gallon water tank
  • Integrated 5-gallon chemical tank
  • Chemical control valve
PTAC hvac coil cleaner

CoilPro Cleaner with CoilVac

The CC-600-KIT is the same as CC-600 CoilPro. It includes a CoilVac Dry HEPA Vacuum so the operator can first vacuum heavy debris from the coil before applying chemicals and spraying it down with the CoilPro. Both the CoilPro CC-600 and CoilVac operate on AC power. The CC-600 can connect to a 3/4" water line for continuous operation or draw from its own 5-gallon tanks. The operator applies a thick layer of CoilShine, Goodway’s expanding foam detergent, using the custom foaming nozzle.

Features:

  • Integrated 5-gallon water tank
  • Integrated 5-gallon chemical tank
  • Chemical control valve

What our Customers Say

Anthony Rizzica, Senior Engineer at Yeshiva University's In New York, N, when asked about the performance of the CoilPro,

"We actually cleaned the coils so well that we gained almost 50 to 60 tons worth of cooling last summer and saved around $75,000.00 to $80,000.00. If I had to put a return on investment on it, I would say for every 25 to 50 coils that we clean; the machine pays for itself".

When asked what other savings does Anthony see using the CoilPro,
"Well, labor hours are a saving - it only takes one man to operate. It's convenient. What used to take us a week, we now do in two or three days."

When asked to compare the CoilPro to conventional pressure washers,

"It’s more portable, and it’s definitely lighter in weight. I like the tanks that hold the chemical and water – there’s no hose involved. The battery pack is a great saver, too. We don’t have to worry about cords being plugged in, people tripping, hazards and all. Safety is always a concern around here."