Tag: hvac coil coatings

Are you at the 2015 NADCA Annual Meeting?

NADCA conference meeting

Are you attending the NADCA conference right now in Marco Island, Florida? Be sure to visit us at Booth 320!

You can talk one-on-one with our President and Technical Advisor, Lynn Burkhart, or our Assistant Executive Director, Rachelle Cunningham. Tell Rachelle and Lynn that we sent you!

Also, be sure to check out our products. We’re a NADCA member and offer products for drip pan treatment, HVAC system sanitizing, coil cleaners, coil coatings, duct coatings and more. CRT products can extend the life of your HVAC system, increase energy efficiency and reduce maintenance costs.

Check us out! We look forward to seeing you.

Lights, Camera, Action: Evaporative Coil Protectant | First Strike Micro Coat


kristen1Kristen Bean, Assistant Marketing Director of Controlled Release Technologies, Inc., a research, development and manufacturing firm based in Shelby, North Carolina.  CRT is an IFMA CSP, an EnergyStar Partner and manufacturer of independently-certified Green products for HVAC maintenance. Since 1986, CRT has been creating leading edge HVAC maintenance products that have become industry standards, used in thousands of commercial buildings world-wide. CRT employees are members of BOMA, ASHRAE, ASHE and the American Chemical Society. www.cleanac.com

Product Spotlight: The Unseen, Often Ignored HVAC Problem that is Draining Your Wallet

During normal operation of an HVAC system, particles and contaminates enter through the air and build up on the coils. According to the Energy Star Maintenance Checklist, link.

“Dirty coils reduce the system’s ability to cool your home and cause the system to run longer, increasing energy costs and reducing the life of the equipment.” Constant cleaning of coils by personnel is expensive and time-consuming, and often results in a trade off. Either more money must be spent on preventive maintenance, or more will be spent on energy costs and replacement. For this reason, having dirty HVAC coils is seen as unavoidable.

For treatment, there are numerous coil cleaners including non-acidic, non-caustic and foaming. While all clean coils at different levels of effectiveness, they are only momentarily effective. Once the system starts back up, buildup begins until the next cleaning. For this reason, an effective plan includes applying a preventive product that deters contaminate accumulation.

At CRT, we have developed the following products to protect HVAC systems from unnecessary buildup. By using our Micro Coat Product Line, both condensate and evaporator coils can remain clean and buildup free, prolonging the time between cleanings and saving both time and money.

First Strike Micro Coat
First Strike Micro Coat is an independently GREEN certified coating designed to protect against unnecessary labor and costs. First Strike Micro Coat reduces recurrent deposit buildup on HVAC evaporator coils by providing a clear molecular layer, or micro coating, of protection. Once cleaned, evaporator coils remain clean up to one year or more.

Coil Shield
Coil Shield is a coating designed to protect condenser coils from corrosion. In high salt and industrial areas, corrosive elements are pulled into HVAC condensers. This causes the system to run inefficiently, and eventually leads to condenser replacement. Coil Shield provides a clear molecular layer, or micro coating, of protection that lasts up to one year or more.

Jonathan Dunagin, Marketing Director 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:How Professionals Work Smarter Not Harder on HVAC …. Part 2

Proper maintenance of HVAC air handlers helps the CFO or finance head, as well as occupants.   Saving money every month by getting the same amount of cooling for less money makes sense.  Certainly, if another provider of electricity came by the office and offered a 10% discount on electricity purchased by them, any owner would jump on the opportunity.

The reason why maintaining coils properly isn’t done is only because management does not realize the extent of funds they are currently wasting by cutting back on man-power for coil cleaning.  If it appears that it is too time-consuming, then other more technological methods developed over the past decade need to be looked at.

In our previous blog, we talked about how biofilms form on surfaces. Biofilms are interesting, mostly because they seldom are noticed and the average person is just unaware of them.

Indeed, they form on almost all surfaces and are not unique to HVAC interiors.

HVAC interiors offer something that most surfaces don’t see however, and that is a temperature controlled environment with moisture, darkness, and a constant supply of nutrients  from small particles in the air being pushed across the coils in amounts of millions of cubic feet each day.

We explained how technical studies by ASHRAE show coils within one year of cleaning are responsible for up to 20% or more increased energy costs than newly cleaned coils.  Since the HVAC energy use accounts for over 50% of a typical buildings electrical expenditures,  having clean coils would make for a much better bottom line in terms of energy usage.

But coil cleaning to remove the physical buildup of dirt and other contaminants may not make sense if manpower is on short supply, and it isn’t worth it, even with spending more energy dollars, to clean the coils often.   But there is a solution.

As most of you know, Controlled Release Technologies spends tens of thousands each year on research and development.  Since our founding in 1986 we have brought out more than a dozen innovative products that the marketplace had no access to prior to our development.  A major accomplishment was our development of First Strike MicroCoat ®.

First Strike MicroCoat ® keeps coils continuously clean for a year or more at a time without maintenance intervention or cleaning.   It was, and is today, a major breakthrough in technology.  We developed this product to handle concerns by many of our customers over odor control, and especially wasted energy they saw by using dirty insulated coils.

Another of your advantages with tis product is  it is water-based and  free of noxious petroleum products.   This makes it more environmentally se to use while at the same time being significantly more cost effective by removing extra labor for cleaning while decreasing your monthly energy bill.

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.

Technical Corner: How Professionals Work Smarter Not Harder on HVAC …. Part I

Maintaining HVAC air handlers to obtain low cost of operations can be quite time consuming and use up available man-hours.  Management allocation of labor has always been minimal over the past few decades, but now restraints on hiring have been even more noticeable.  The result?

Many departments have cut back on necessary coil cleaning, keeping water collection pans free of bacteria and other microbials, and in some cases choosing to put off changing air filters.   While on the surface these things seem okay to cut back on, the actual fact is they cause more problems than they solve.  Of course the cutbacks seem to provide the owner with more cash flow.  But this is surely not the case.

Cutting back on maintenance items as above costs management more money rather than less.


A recent ASHRAE Journal reported a study that was completed in New York on HVAC units that had been cleaned a year previous.  What they found was to some surprising; others in the HVAC field might have considered the ASHRAE findings intuitive or expected.

Several air handlers had their coils cleaned after a one-year period.  The study found that the clean coils exhibited an energy savings of up to 20% or more than those coils that had been cleaned only one year before.   For several air handlers, this amounts to wasted financial expenditures of tens of thousands per year.   Balance that against keeping the coils clean throughout the year and one can see that saving a few man-hours does not really compare to this kind of wasted money.

The main culprit is biofilms.   Biofilms are very thin layers, in most instances, of bacteria and other microbes.  They tend to be sticky.   They grow on any surface, and growth is enhanced by the presence of high moisture and nutrients.

Because they are sticky, when any dirt or organic matter bypasses the filter or comes through the filter, the matter impacts upon the biofilms and may stick to the film.   Since the overwhelming amount of surface area is the cooling and heating coils, particles that impact and stick on the biofilms on these surfaces insulates the coils even further.   It is known that biofilms alone provide the same insulating affect as 5 times that amount of scale.

This is why coils that are apparently “clean” are financial detriments.  Knowing this, is it really smart to cut back on spending an hour or so cleaning coils?

But that is really only the start of the issues.   We all know bacteria and fungus create VOC’s or odors.  In many cases, these can be quite obnoxious.   Most managers might believe that since the air handlers are out of sight of tenants, no one really cares if they are in fairly good health.   We know of one air handler right now in the North East whose tenants in the building (lawyers by the way) have been complaining of odors for quite a few months.

Not withstanding all of the above, there lies another problem, and that is equipment sustainability.  How does having a clean HVAC unit related to the expected lifespan of the unit?  Most air handlers may cost anywhere from $25,000 to well over $100,000 to replace.   In the vast majority of cases, the owner does not hear this news until the unit is within a few weeks or months of replacement.   This can come about by the management not periodically inspecting the units for corrosion and fouled coils.

In the next blog, handling the above in a realistic way that makes sense will be reviewed. Please feel free to comment, we love to hear from our readers.

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.