Tag: hvac coil cleaners and coatings

Product Spotlight: The Sludge from Air Handler #21760

Occasionally, potential clients request CRT’s assistance evaluating their HVAC maintenance needs. One such case occurred a few years ago at a large business facility experiencing a pan overflow.

When initially questioned, the building owner admitted that he had no on-site staff and contracted out all HVAC work “as-needed.” This was glaringly obvious upon entering AHU #21760. If you think this picture is disgusting, you can only imagine the smell. It has been said, if it looks like a duck and sounds like a duck, then it must be one. Well this smelled like the duck had died.

Further questioning revealed that it had been over a year since this unit was last inspected, and at that time tablets had been used to try and control dirt and grime buildup. Now this owner was facing a major overhaul of the unit, including water damage to surrounding structures. All this, just to save a few dollars.

At CRT, we developed our Timed Release Product Line to essentially eliminate leaks, clogs and overflows. By using the following products, condensate pans remain clean and deposit free, protecting buildings from costly water damages and maintenance expenditures.

PanGuard

PanGuard, an independently certified Green Product, is the original, timed-release polymer strip. PanGuard eliminates clogs and overflows due to deposit accumulation in HVAC condensate pans, and is engineered to meet the needs of individually sized units. Once a condensate drip pan has been cleaned, it remains clean for three to six months.

Algae Guard

Algae Guard is an EPA registered, timed-release polymer strip. Algae Guard eliminates clogs and overflows due to mold and fungus accumulation in HVAC condensate pans, and is engineered to meet the needs of individually sized units. Once a condensate drip pan has been cleaned, it remains clean for three to six months.

To learn more feel free to contact us, and please, share your AHU condensate pan horror stories and pictures in the response section below.

Controlled Release Technologies, Inc., a research, development and manufacturing firm based in Shelby, North Carolina.  CRT is an IFMA CSP, 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 (800) 766-9057.

From the Field: Dirty Sock Syndrome

Okay, it’s that time of year. For much of the U.S., the heating season began about a month and a half ago. Here in North Carolina, and more specifically my household, the heating season has only been around for about three weeks. Now don’t get me wrong, it’s been cold enough at night to run the heat, but during the day we find ourselves turning the AC back on – a common thing in the Southeast.

When the heat pump goes into defrost mode, or the HVAC unit is switched from heating for a brief time, then back to cooling, a condition known as “Dirty Sock Syndrome” can arise.  DSS is described as a musty, moldy, dirty sock odor coming from HVAC systems when they first start into cooling mode. DSS is caused by bacteria that attaches to, and grows on indoor evaporator coils. When the coils cool down and get damp, the bacteria release their gases all at one time into the air causing the unpleasant odor.

Some people have gone as far as to almost sell their homes because they couldn’t get rid of the smell. BUT HAVE NO FEAR! Here is a way for you to eliminate that smell and maintain a clean, healthy environment through a little preventive maintenance.

  1. Clean the coils at the end of the cooling season with Instant Powder Kegs. Cleaning the coils before the heating season will get rid of any contaminants such as dirt, biological buildup and other material.
  2. Sanitize the unit thoroughly. Use EPA-registered Fast Attack, an HVAC system sanitizer specifically designed for HVAC interiors. Iodine based sanitizers are an ideal choice, as iodine’s effectiveness has been well documented. Hospitals have used iodine to sanitize before surgery for the last 150 years for a reason!
  3. Protect the coil from fouling by using Green-Certified First Strike Micro Coat. Transform the coil into a “self-cleaning” coil, one that repels particles and keeps matter from adhering to the surface.
  4. Round off the procedure by adding a timed-release drain pan protectant. This will eliminate clogs and overflows that can occur once the cooling season starts back. Either Green-Certified PanGuard or EPA-Registered Algae Guard will work.

All of these products are safe and easy to use, requiring minimal PPE. By following these simple steps, it will ensure that when you start up your AC at the beginning of the cooling season, you aren’t left saying….“Ewww, THAT SMELL!”

James Brown, Application Specialist of Controlled Release Technologies, Inc., a research, development and manufacturing firm based in Shelby, North Carolina.  CRT is an IFMA CSP, 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 (800) 766-9057.


From The Field: A PM Lesson Learned The Hard Way

What happens when you drive your car too long without changing the oil? Hopefully everyone reading this realizes, eventually you’ll have to change the engine! I knew this since I started driving, and I knew that a little Preventive Maintenance goes a long way. However, sometimes I fail to use that knowledge in my everyday life.

While working production, I would try to finish jobs as quickly as possible, getting as much done as I could to make sure the boss was happy. I even went as far as to avoid doing any maintenance that might slow down my output. I was pushing work out the door as fast as I ever had, when POW, my machine broke. A problem that I thought would be a simple fix, soon turned into a two-week nightmare. Making matters worse, the work I had produced was failing quality specifications, as maintenance had been ignored and the machine was off by a tenth of an inch.

This put a massive amount of stress on me. I had my supervisor, his boss, and his boss’s boss complaining about downtime due to my “management by crisis” ways of doing things. Although I had always heard, “if ain’t broke, don’t fix it,” I now realized the error of my ways.

By ensuring the equipment was running properly, and not in need of repairs, I could have avoided this catastrophe. Adopting a Preventive Maintenance Plan is a simple step towards increasing efficiency and sustainability. Give me a call for some easy tips to create your preventive maintenance schedule.

Perhaps you have a Preventive Maintenance schedule of your own. If so, feel free to share it in the comments section below.

James Brown, Application Specialist of Controlled Release Technologies, Inc., a research, development and manufacturing firm based in Shelby, North Carolina. CRT is 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 (800) 766-9057.


Technical Corner: Corrosion of HVAC Units

Corrosion is arguably one of the major reasons for expensive HVAC replacement. It affects all HVAC systems regardless of geographical location, but tends to be even more of a factor for HVAC units located along the seacoast.

Corrosion takes place often unnoticed by the user until it is too late. Examples are many. Outside coils or condenser coils exposed to morning salt fog on coastlines often turn whitish. Over time, sometimes in as little as 18 months, these coils are corroded so severely that the coil fins literally fall off the internal copper tubing. This essentially makes the unit useless.

HVAC units around industrial type cities where sulfur oxides or nitrous oxides are more abundant also corrode from exposure to this type of atmosphere.

In seeking to retard the corrosion of outside condenser coils, many users elect to coat the coil fins, a normally very expensive procedure. Coating condenser fins in the past required the coil assembly to be freighted out to a vendor who specialized in applying an epoxy-based coating on the coils. After that, the coil was shipped back and had to be reinstalled. The initial cost of coating could run from several hundred to several thousands of dollars depending upon coil size. Coatings were often greater than 1 mil or 2 in thickness that increased operating costs of the unit due to the insulating effect of the coil coating.

Fortunately, there are more economic and easier ways to protect coils from corrosion. Weatherproof Coil Shield is a unique product developed by us and tested in an accelerated weathering chamber for 4,000 hours. In chambers such as this, the coil is subjected to 24 hours per day of alternating exposure to salt fog, industrial atmosphere such as NOx and Sox, and infrared light. Accelerated weathering chambers are used to determine the effects of long-term exposure to known corrosive factors in a short term.

Since Weatherproof Coil Shield can be applied by any maintenance person in ten to fifteen minutes, its use makes it ideal for corrosion proofing in-place any outside coil. The coil should be washed first to remove any dirt and residual corrosion, and then our product is sprayed onto the coil. Re-spraying is recommended to be done yearly.

Even interior cooling coils develop corrosion. For the most part, this is caused by aggressive coil cleaners which attack system metals. Condensate can also cause corrosion, as well as microbial buildup (fungus and bacteria) on the coil surfaces.

Besides plain corrosion, buildup of bacteria and fungi insulate the cooling or evaporator coil, making it less efficient.

Here, the solution is patented First Strike Micro Coat. As with Weatherproof Coil Shield, this product is easy to use, and lasts for a year or more.

First Strike not only handles corrosion, but help maintain efficiency, lowering monthly operating costs.

Here, the solution is patented First Strike Micro Coat. As with Weatherproof Coil Shield, this product is easy to use, and lasts for a year or more.

First Strike not only handles corrosion, but help maintain efficiency, lowering monthly operating costs.

Adding First Strike Microcoat to your preventive maintenance program is a wise decision, lowering monthly energy bill while helping to assist indoor air quality.

Please feel free to comment or share your experiences with us.

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.