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Have you ever wondered how your air conditioner works?

9/15/2014

10 Comments

 
The heat and humidity in Florida makes our air conditioners pretty much a necessity, but how exactly do they work? Air conditioners work the same way as refrigerators. They just cool a much larger space. A heater is pretty easy to understand because heat is fairly easy to generate, but how does one create cold? An air conditioner doesn't really generate cold; it uses a chemical, usually Freon, to transfer heat from the indoor air to the outside. Freon is used because it easily converts from a gas to a liquid and back.

An air conditioner has three main parts, a compressor, a condenser, and an evaporator. The compressor and the condenser are usually located outside, and the evaporator is located inside. The Freon arrives at the compressor as a cool, low-pressure gas. The compressor compresses, or squeezes, the gas turning it into a hot, high-pressure gas. This gas then flows to the condenser.

The condenser is the part that has metal fins all around. These fins help the heat dissipate quickly, and a fan blows it away. When the Freon leaves the condenser, it is much cooler and has changed from a gas to a liquid.

The liquid Freon enters the evaporator through a very tiny hole. This causes the Freon's pressure to drop, and it begins to change into a gas and evaporate taking heat from the air around it. By the time the Freon leaves the evaporator, it is, once again, a cool, low-pressure gas ready to start the trip again.

The evaporator also has metal fins and a fan. The fan blows the inside air across the fins, and the heat is removed from the air. The air is much cooler and is then blown throughout the house via the duct work. 

This process repeats again and again until the desired temperature is reached. 



10 Comments
Air Purifier for Smoke link
4/20/2015 01:11:01 am

This is good to use an air purifier if you are suffering from the dust problems and germs. The air purifier can help you in cleaning the air at maximum percentage.

Reply
Luckyman link
5/23/2015 12:59:18 pm

I have a Honeywell room heater this allergen remover would be a dream and benefit my whole family as my husband & son has really bad allergies and our dog has severe allergies where she needs shots and meds. I know Honeywell is a good name. What a wonderful giveaway!!!

Reply
192.168.254.254 link
11/9/2020 11:21:50 pm

Good artcile, but it would be better if in future you can share more about this subject. Keep posting

Reply
Hvac link
5/10/2022 03:17:36 pm

An air conditioner works using a thermodynamic cycle called the refrigeration cycle. It does this by changing the pressure and state of the refrigerant to absorb or release heat.

Reply
Owens Heating and Air link
8/19/2022 01:53:45 pm

You guys are doing a great job.

Reply
Peoria Boilers link
9/17/2022 10:58:42 pm

Hi thanks for sharing this.

Reply
callsmoothsailing link
10/26/2022 05:47:21 am

I agree. Air conditioners circulate and filter air, removing pollutants and mold from the air. This is especially important for people who suffer from allergies and asthma because it minimizes the irritants that trigger an attack.

Reply
Iris Smith link
12/6/2022 01:00:40 am

Thank you for mentioning that the condenser includes metal fins that aid in heat dissipation and that a fan blows it away. The air conditioner in my father's bedroom is not blowing cool air. I'll locate a professional air conditioning system to inspect the condenser.

Reply
HVAC Contractor in Houston link
1/2/2025 01:23:41 am


Understanding how your air conditioner works is key to maintaining its efficiency. At Ace Comfort Air Conditioning & Heating in Houston, we believe it's essential to keep your air conditioner running at its best, especially in the warm months.

As you described, air conditioners operate by transferring heat from the indoor air to the outside using a chemical called Freon. The compressor, condenser, and evaporator each play a vital role in this process. Ensuring that all components are functioning properly is crucial for maintaining a comfortable home environment.

Regular maintenance and inspections are essential to keep your air conditioner running efficiently, preventing breakdowns when you need it most. Contact Ace Comfort Air Conditioning & Heating to schedule an expert check-up and keep your system performing at its peak, especially as the weather heats up.

Reply
Air Pro Master link
1/29/2025 01:44:09 am

Thanks for sharing this fascinating explanation of how air conditioners work! At Air Pro Master Air Conditioning Repair & Installation in Las Vegas, we’re all about helping homeowners enjoy a cool and comfortable home year-round.

When it comes to air conditioning installation, understanding the system’s core components—like the compressor, condenser, and evaporator—highlights just how essential it is to have expert technicians handle the job. Proper installation ensures your system operates efficiently, maintains optimal airflow, and effectively cools your space without unnecessary energy waste.

We take pride in guiding our clients through selecting the right system and installing it with precision to maximize comfort and energy savings. Your post is a great reminder of the science behind staying cool, and we’re here to make that process seamless for homeowners in Las Vegas. Stay cool and comfortable!

Reply



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    My name is Phil Mullin. I am a licensed HVAC contractor in the state of Florida. I live in Holiday with my wife and three of my children. My oldest daughter lives in Winter Haven with her husband, and they have given me four beautiful grandchildren.

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