Tag: evaporator coil

Your HVAC Coils Need a Strong Cleaning – Here’s Why

You just ate an amazing dinner! Perhaps a mouthwatering steak, garlic mashed potatoes, and whatever fixings are your favorite. Now that your stomach is completely full and happy, it’s time to clean up the kitchen. Imagine all the food that just sat on your plate and in the pots and pans.

Photo: Creative Commons
Photo: Creative Commons

Now imagine that instead of using soap and water to clean all of the dishes, you just simply rinse the dishes with just water. Would you consider those dishes clean? 

Next, imagine that you just finished up a day of working outside in the hot sun. You’re ready to go inside, take a shower and relax for the rest of the night. You go inside and take a shower with just water. Would you consider yourself clean? 

It’s normal to actually wash our dishes with soap to get them clean, and it’s normal to wash ourselves with soap each day.

So what’s the norm for A/C coils? It’s normal that coils be cleaned, not just rinsed, at least once a year! According to energystar.gov, you should get a maintenance checkup on your A/C system every year. And that checkup should include cleaning the evaporator and condenser coils. As Energy Star states:

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.

If someone suggests just rinsing off your coils, they are cutting corners. Remember, the norm is to use a coil cleaner to clean your coil and then rinse off the coil cleaner. 

Just like you use soap in the shower and soap on your dishes, you should be sure that your coils are cleaned with a coil cleaner each year and not just water

Remember, dirty coils can increase energy usage by 30%! But clean coils save you money.

What are your thoughts on coil cleaning? Do you rinse coils with just water or do you use a cleaner? What type of coil cleaner do you use? Our Powder Kegs powdered coil cleaner is inexpensive, easy to transport and easy to use.

Tips from The Girls: Consequences Of NOT Receiving Maintenance

As a preventive maintenance manufacturer of HVAC products, we continually preach to our customers the importance of having maintenance done regularly. But, let’s switch gears for a moment!

What would be the results of neglecting this maintenance?

Dirty Air Filter

A dirty air filter can cause all sort of problems in the system’s performance. A dirty air filter decreases the power the engine needs to run efficiently. If left neglected, the dirty air filter will began to leak dust and sand into your engine causing bad seals, oil leaks, and oil burning.

If you were to go for a run, with your hand over your mouth and with your nose pinched shut, how far would you go? Engines need air too.

Dirty AC Coils

Just like with a dirty air filter, dirty coils can be devastating to your system as well. With dirty coils left unmaintained, they are unable to provide proper heat transfer. Ultimately, causing your a/c unit to use more energy. More energy means higher utility costs.

Negative effects on indoor air quality is a result as well. As the coil stays moistened with condensation – germs and bacteria are born, which are then released into the air you are breathing.

The aluminum fins of the coil makes it easy for dirt, dust, and debris to stick causing blockages and in return affecting the overall performance and efficiency of your A/C.

AC Blowers
Typically, a AC blower is protected by the filter. An AC system circulates air through the building duct work via blower fan. If not maintained, the blower fans can get clogged down by dirt, leaks, and even rodents. These issues cause horrible air quality and health concerns in buildings.

Money talks LOUDLY when you get into replacing these parts of your system. While, a new filter is a small price to pay to keep your HVAC system maintained at only 10 dollars each, a blower or coil replacement can be a bit pricey. On average a person would pay $475-$675 in purchasing a new ac blower and could spend anywhere from $1300 to $1500 on a coil replacement.

These reasons and among others are why we stress the importance of preventive maintenance. Save yourself the time, money, health, and a lot of headache. Maintain your equipment!

chasnewChasity Walker, Publicity Manager 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

Technical Corner: “Did You Know – HVAC Corrosion”

Corrosion is found everywhere. Structures such as bridges, buildings, radio towers, and marine vessels all experience it. Corrosion results in billions of dollars per year worth of damage, and potential hazards to human life.

Studies on corrosion over the past centuries have been numerous. The National Association of Corrosion Engineers have for decades been deeply involved in how corrosion occurs and under what circumstances.

One major area of corrosion many are too familiar with occurs in the HVAC field. In this area corrosion can take many forms and affect many areas. For example, a critical area of concern is often what a person doesn’t see.

Chilled water systems often corrode, causing metal deterioration and pitting on the inside of water piping, and inside condenser tubes in the chiller unit itself. Costs for retubing a chilled water condenser is expensive and time consuming. For this reason, one would be foolish not to monitor the corrosion in this closed system.
Another area frequently attacked by corrosion are evaporator coils and outside condenser coils. Typically, corrosion of these coil types results in aluminum corrosion or whitish aluminum oxide deposits being seen.

Costs each year are huge. One major manufacturer of PTAC (packaged terminal air conditioners) lost over 8 million dollars in just one year due to warrantee replacements due to corrosion. Although the vast majority of corrosion related issues are located in coastal regions, corrosion also affect inland units as well. It is not uncommon for AC units in Illinois or other midwestern states to experience other types of corrosion.

Suffice it to say, in no cases I have run into over the past few decades were owners pleased with the prospect of replacing their units. Even the smaller PTAC units have replacement costs exceeding $1,200 or more each.

Not much for big business to handle when looked at as a single unit, but when one considers that many hotels have upwards of 300 – 400 units, you can see over $500,000 being spent. Not too many firms can withstand this type of expenditure every few years.
There are many ways to handle and prevent corrosion. The easiest way is to prevent it from happening in the first place.

In part 2 of this blog, we will address solutions to a few of these corrosion types.

lynnLynn 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.