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How Central AC Works and How to Keep Cool All Season Long

by Blake Wiltshire | May 26, 2020 | Residential Cooling, Residential HVAC, Residential Services | 0 Comments

Summer is the perfect time for backyard barbecues, going for a swim at the pool, or taking a weekend getaway to the lake. When your air conditioner is running at 100 percent, summer is a breeze. If your AC isn't performing its best, the summer heat can quickly turn into your worst enemy.

What's the key to keeping your AC up and running? First, you need to know how the system works. With some basic AC know how, you can better understand what your AC needs to have a long, efficient life.

Once you understand how the system works, all the AC tips you've read online—and hopefully, here on our blog—make sense. Best of all, if you run into any trouble along the way, or suspect you need professional help, we can help.

air conditioning unit in summer

How Your Central AC System Works

Most residential AC systems are pretty straightforward. They have a thermostat to control the temperature in your home, an air handler to circulate air throughout your home, and an air conditioning system to cool the air as it circulates through your home.

Thermostat

You're probably familiar with your home's thermostat. It actively measures the temperature within your home. In cooling mode, when the registered temperature is higher than the set temperature, the thermostat tells the system to turn on the AC and cool the home.

Circulating the air

Your central AC air handler is responsible for circulating cool air throughout your home. The air handler sucks in air through the return vents in your house. Next, the air passes through the air conditioning system and cools the air. Once cooled, the air handler blows the air through the vents in your home to lower air temperature in your house. Finally, when the thermostat measures that the temperature of the air in the house is cold enough, it tells the air handler to turn off.

Cooling the air

The air conditioning system is responsible for cooling the air as the air handler circulates it throughout your home. As a refrigeration system, the air conditioner actually removes the heat from the air in your home to make it feel colder. Air conditioners have three main components: a condenser, evaporator, and compressor.

As air passes through the air conditioning system, it passes through copper tubing that contains a refrigerant. This refrigerant removes heat from the air passing through the system. The compressor helps release the heat extracted by the refrigerant as the cooled air moves back through the air handler and into your house.

Simple Tips for Maintaining Your AC

AC repairs can be inconvenient, expensive, and as luck would have it, tend to happen on the hottest day of the year. Here are a few basic tips you can use to help keep your AC in tip-top, efficient shape for the long haul.

1. Be smart with your windows and doors. The hotter the air in your house, the harder your AC has to work. Open windows and doors leak hot air from the outside into your house. During hot summer days, limit how often you come in and out of your house. Also, identify and seal leaky windows in your house.

2. Inspect and change your air filter regularly. Your central AC system needs to circulate air freely throughout your house to operate efficiently. As the air handler sucks in air from your house, it also sucks in dirt, hair, dust, and other debris. Over time, these materials clog the air filter, which causes more wear on the system as it has to work harder to circulate air through the dirty filter.

3. Let the condenser breathe. Are there a lot of plants and leaves around your air conditioner's outside unit? The condenser needs to expel air from the system freely. If plants are growing around the condenser or if it's covered in leaves, clear them away so the unit can operate efficiently.

4.Allow air to flow freely through your home. For your air conditioner to operate at its optimal efficiency, the air handler needs to circulate through your home. You may think that closing vents and closing doors will help save money on your utility bills. In reality, it makes your air conditioner work harder as it tries to circulate air through closed vents and areas.

Don't Forget to Schedule Regular AC System Maintenance

Need help maintaining your air conditioning system? The AC experts at Althoff Industries are just a phone call or click away. Give us a call at 815-455-7000 or fill out a contact form.

 

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