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The Science Of Air Conditioning

November 28, 2022 | Blog

Are you interested in purchasing a new AC unit but feel overwhelmed by all the different options available? At KCA Services, we’re always happy to guide you toward the most reliable home appliances! We pride ourselves on our reputation as a well-known and well-respected heating, cooling and air purification company since 1973.

Our technicians are professional, efficient and dedicated to providing you with the customer service you deserve. Don’t hesitate to reach out to us if you’re looking for an expert opinion on high-quality AC units! Read on to learn more about the inner workings of an air conditioner and its components, or chat with one of our friendly team members at any time!

Parts And Pieces Of An AC Unit

Wondering what components are essential in an air conditioning system? Here are some of the major and minor parts and pieces:

Major Parts

Evaporator Coil

The first major piece is the evaporator coil.This is the part of the system that holds liquid refrigerant. This coil converts refrigerant into gas and extracts heat and humidity from the air. This part is often attached to either your furnace or is located on the inside of your air handler.


The second major piece is the condenser, which works in tandem with the evaporator coil. These two parts work together to convert the evaporated refrigerant back into a liquid and release heat outside. This is the part of your unit that you see situated outside your home, usually on the side of the house.


The third piece is the compressor. This part is what pressurizes the refrigerant in the system under pressure to concentrate and heat up the chemicals. This is a vital and often more expensive part of your unit.

Minor Parts


Also known as the fan, this component pushes the air through your ductwork and circulates cooled air throughout your home as well as pull warm air in for re-cooling. Although this is listed as a minor part, it plays a large role in the way your system cools your home.

Air Filters

Filters collect allergens, dust and other airborne contaminants to protect your respiratory health and improve your indoor air quality. It’s important to remember to have these changed frequently to ensure your system is performing at its highest. Clogged air filters can cause poor indoor air quality and increase the risk for damage to occur to your system.


Your thermostat is a device that monitors your indoor temperatures and signals your AC unit to turn on and off. With a thermostat, you’re able to set your desired indoor air temperature and your system will work to retain that temperature for you. This is an important aspect of your AC unit as it is the part that you are in the most control of!


Refrigerant chemicals are vital to air conditioning units. A refrigerant’s job is to travel through all of the different parts of your air conditioner while changing from a low-pressure gas to a high-pressure liquid. As it’s doing this, it extracts heat from the air inside your home and transfers it outside!

How Does Air Conditioning Work?

Need an example of a typical AC cycle? No problem! Most air conditioning units follow these four steps:

Step 1- Your thermostat recognizes that your house is too hot and turns your AC unit on.
Step 2- The refrigerant inside your evaporator coil begins to absorb the heat inside and cool the air down.
Step 3- Your fan circulates the cool air through your home’s ductwork.
Step 4- The heat trapped in your refrigerant is funneled outside.

AC Installations At KCA Services

When it comes to saving you the big bucks, you can count on our business to provide you with excellent home services at affordable rates! At KCA Services, we value your peace of mind and your bank account, which means we don’t do hidden extra fees when you’re looking to have a new AC unit installed. You can enjoy even more benefits when you join our Shield of Protection Plan, which includes guaranteed appointments within 48 hours of your service request, two free precision tune-ups and so much more!

Contact Your Boerne AC Team!

Are you ready to schedule your AC installation appointment and enjoy cleaner, cooler air? Here at KCA Services, our mission is to provide you with high-quality home services that allow you and your family to feel comfortable year-round! If you’re looking for AC repairs, replacements, or assistance with any other air purification issues, our trustworthy team members are here for you. Feel free to contact us through our website by setting up an appointment, or give us a call today!


Why Choose Us?

KCA Services demonstrates excellence by holding ourselves to a higher standard.

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What Our Customers Say

Amazing Team!

Both Joseph and Josh were amazing in getting my heating system working again. It took some time with pieces and parts but they were persistent and it finally worked! A great team both in the field and in the office. Appreciate the warranty support. You couldn’t ask for more

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KCA did a great job for us. They were prompt and professional when they came to bid. Started and ended the project on time with excellent craftsmanship. Highly recommend KCA!!

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Very impressed with this company. Courteous, professional, and maintained a clean work area while cleaning our ducts. The two gentlemen that came out to do the work represented their company very well!. I would highly recommend this company.

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