Tag: Controlled Released Technologies

Water in Ductwork, NOT TODAY!

Have you heard the following things listed OVER & OVER again in regards to your HVAC unit?

“No one wants any sort of strain on their HVAC unit. Strain that could cause many problems that are an extra cost to you. Such as:

-Higher energy bill
-Frequent maintenance on your HVAC unit
-HVAC replacement

There are many ways to keep your HVAC unit stress free. Below are just a few basic steps you can take to keep your HVAC system stress free. Very easy stuff, and they each only take a few moments of your time.

-Keep vents clear
-Keep those coils clean
-Change out the air filters regularly”

BUT, one thing that goes unmentioned quite often is the ductwork. Of course it would. Out of sight, out of mind, right?

Did you know, ductwork carries the warmth in the winter and holds the cool air in the summer. Without proper ductwork insulation, the temperature of the air being carried could be lost while transferring from the HVAC unit to the vents in your home. Ductwork can also play a major role in your energy bill. Even the Department of Energy claims so.

So, you see how important ductwork is. What if just a little bit of water entered your ductwork from the HVAC system? It’s just a little water. No biggie, right? Actually, YES! Even the smallest water droplet is a huge deal! To name a few, it can cause the following:

-Rust out metal ductwork
-Breeding ground for mold, mildew, and bacteria
-Decrease Indoor Air Quality greatly
-Water damage
-Degradation & De-lamination

Although, water in the ductwork can cause many problems. Your health alone should be enough reason to want to get your ductwork checked out. Exposure to mold can lead to allergies, infections, rashes, even alzheimer’s. The list just goes on and on.

When water gets in the insulation in your ductwork, those water droplets fly through your airstream. These water droplets create a breeding ground for mold & mildew. Water droplets will wreak havoc on the insulation in the ductwork causing degradation & de-lamination. Not only would this be tearing your insulation apart to later be replaced (more bucks from your pocket) but that delaminated insulation would be freely roaming the air in your home (remember you & your family are breathing this).

Why worry about water in your ductwork causing this step ladder of issues when there is a solution?

For the new home-owner, why not be preventative & go ahead and protect yourself?

Ductile is a coating that protects the HVAC ductwork from degradation and insulation de-lamination. Ductile locks down fiberglass particles that would enter the air stream. Hallelujah!
No stress of your insulation breaking down & no worries about your health. Did you hear that, NO STRESS!


Contact us for more information on Ductile. Shandi or Candice will be more than happy to give you some information. 800-766-9057 or if you’re like me and prefer email reach out to sales@cleanac.com or custserv@cleanac.com

Technical Corner: Is Bigger Really Better? (Part 2)

Those who have read Part 1 of “Is Bigger Really Better” know that when it comes to air conditioner sizing, bigger is not necessarily better. But there are areas where bigger is better when it comes to preventative maintenance.Take the area of the condensate collection pan for example. Collection pans get dirty and produce odors. In some cases they are a breeding ground for bacteria, fungus, and other microbes.There is no question that these areas are among the dirtiest, if not the most offensive, areas of the air handler. Water overflowing comes about from fouling so bad that the collection pan drain line becomes solidly plugged, preventing water from flowing out naturally.Before the mid-1980s, all that could be done was to add tablets to the condensate pan to attempt to address the problem. Tablets dissolved quickly. Even those that purported not to dissolve quickly (a small weighted red box), an analysis of the active ingredient showed its’ solubility rate was 1.5 grams per liter of water. This would be how much would dissolve in one liter (about a quart) of water.

These type products, considered the best at the time, were used with varying results. It was not uncommon to see literally dozens of these boxes in an air handler, all with fungi and other microbes growing around them.

If the products were that good and they were not consistent, then there must be something we didn’t know as to why. One reason might have been that the water flow was much higher than the tablet could effectively treat. We checked a small fan-coil unit in Florida and found that this smaller unit flowed 1-1⁄2 gallons of water per day or about 6 liters of water.

Now if 1.5 grams of the tablet dissolved in 1 liter of water, then 6 liters would take up 9 grams with one day’s flow of water. But the tablets weighed 3⁄4 ounce or 21 grams. At its 50% active ingredient level, that meant the tablet contained only 10.5 grams of actives. So, in a little over a day, there would be nothing there to work with.

Most engineers and professionals need products they can rely upon, and HVAC maintenance people demand the same. It is irritating to have to make an emergency call to a unit to handle an overflow, or having complaints on odors, and other service related matters.

In 1986 our company made a major breakthrough in this area. This was the development of the first true controlled-release condensate pan treatment. Unlike old treatments used without consistent results for decades, PanGuard and Algae Guard makes a remarkable leap forward. They slowly release ingredients over a 3 to 6 months period of time. This lays on the table what every manager wants: consistency and predictability of results.

Time after time, it works. No surprises and no extra labor. In fact, since the products are only placed in the condensate pan when filters are changed, there is no extra work involved.

To obtain this optimum performance, we determined the condensate flow of water from each tonnage of air conditioning unit. Next we oversized Algae Guard and PanGuard to insure that no matter what conditions would occur, the products always work.

Because upsets seem to occur when one least expects them, we went that extra step by being conservative in our controlled release products: they were engineered to handle all the water from a certain tonnage of air conditioner when that unit was running 24 hours per day, 7 days per week, at a relative humidity of 100%. No other manufacturer of condensate collection treatment products engineers a product to these high standards. With these products, failure is not an option!

Our EPA registered Algae Guard product contains 32% active ingredients as shown on its box label. Users are encouraged to check our box label with other timed-released products to see the difference quality engineering makes.

There is only one other polymer-based product on the market similar to ours; it uses our old 1986 polymer matrix.

Good, but in 2007 after years of further research and development, we upgraded our system by synthesizing a brand new timed-released molecule that is much sturdier, and more efficient at the controlled release of working ingredients. This coupled with our 32% active ingredients in the case of Algae Guard increases its desirability over a 20% active, lower performance polymer molecule.

In this case, bigger is better. Upgrading our products continuously insures our customers only get the latest in technology as we develop it.

CRT Time Released Products

Lynn Burkhart is the founder and president of Controlled Release Technologies, Inc. located in Shelby, North Carolina. More information about the company, and its products, can be found at http://www.cleanac.com and by calling (800) 766-9057.

Technical Corner: Is Bigger Really Better? Pt.1

When it comes to many things air conditioning systems, bigger is not always better. Take the sizing of an air handler for instance.

Many instances have been uncovered where architects and mechanical engineering firms oversized the air handler. For example, where the conditions called for a 50 ton unit, 75 tons or higher was installed. Bigger must be better was the supposed reasoning.

Unfortunately, this mistake costs the building owners over 20 million dollars in the end and nationwide infamy. Why?

Air handlers not only must provide adequate cooling, but also reduce the amount of moisture or humidity of the inside air. When the units were started up, cooling was almost immediate. However, the cooling capacity of the units was so large that the unit was able to come on only for a few minutes before it shut off again.

As a result, little moisture was removed and the humidity levels remained high. In Florida, where high humidity is a fact of everyday life, moisture removal is vital. Normally in air conditioners where the air moisture condenses upon cooling coils (similar to the condensation on the outside of a glass of water you may drink in a restaurant), and moisture in the air is removed.

What is known by all indoor air quality professionals is that humidity levels over 60% are conducive to fungal (mold) growth. In this Florida case above, moisture was not removed ever from the air. A building occupant, after the new building was condemned and occupants evacuated, stated “It was either hot and damp or cold and damp in the building. But it was always damp.”

Owners were confronted with bulldozing down the marble enclosed building and re-­‐building it from scratch, or trying to repair the existing building.

There are other areas however where bigger is better. Handling mold issues in the HVAC condensate collection pan is one of them. My next blog will address this important factor.

Please do not hesitate to leave your comments or testimonials below.

Lynn Burkhart is the founder and president of Controlled Release Technologies, Inc. located in Shelby, North Carolina. More information about the company, and its products, can be found at http://www.cleanac.com and by calling (800) 766-9057.