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Central Air Conditioning - How It Works
1-800-Plumber +Air of Northwest Houston
Texas is no stranger to the heat. If you're living in a sizable, multi-story Northwest Houston home, it's going to take more than a couple of AC window units to keep cool. A strong central air conditioning system, like the kind installed by 1-800-Plumber +Air of Northwest Houston, is just what you need to stave off the heat.
To understand why you should install central air conditioning, you should also understand how it works. This guide will teach you about the primary components of a central air conditioning system, how they interact with one another, and what to look for in a system.
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The Parts of a Central Air Conditioning System
Each component of a central air conditioning system is crucial to its performance, as this section will illustrate.
Condensing units are set up outside of a home or business. Inside condensing units are the compressor, the condenser coils, and the fan motor.
The compressor is perhaps the most important part of your central air conditioning unit. It's responsible for the flow of refrigerant in your air conditioning system. We'll discuss the role of refrigerant further in the section, "How Central Air Conditioning Works."
Made of aluminum and copper, condenser coils are critical for the final part of the central air conditioning cycle. After hot air is absorbed through the evaporator coils, and the refrigerant becomes a liquid, it eventually re-enters a gaseous state before going out via the condenser coil, with assistance from the fan motor.
The fan motor is part of a central air conditioning unit that's easy to understand and impossible to do without. It's responsible for moving air inside your system, allowing your home to stay cool.
Many problems with central air conditioning are specifically problems with the fan motor. 1-800-Plumber +Air of Pearland provides expert, friendly, and affordable fan motor replacement, as well as other crucial HVAC services.
Evaporator coils are located inside. Specifically, they're part of your home's air handler or furnace, separate from the condensing units. The purpose of these coils is to absorb the heat from your home's air. This contrasts them with condenser coils, which are located outside and designed to release air.
How Central Air Conditioning Works
To understand how central air conditioning works, you need to understand the importance of heat. A central air conditioning unit can't just create cool air out of nothing. It needs to take warm air and manipulate it through its system and components to create a cooling effect throughout your home.
The Role of Refrigerant
Also known as coolant, refrigerant is as important to a central air conditioning system as blood is to our bodies. True to its name, refrigerants can get very cold. Some have freezing temperatures hundreds of degrees below zero. However, it needs heat in order to do its job.
As the compressor in the condensing unit pumps away, the cooling cycle can begin. Refrigerant enters through the evaporator coils. During this process, your furnace/air handler will release air via a fan across the coils. The temperature difference, with the air being much warmer than the coolant, warms up the coils.
The refrigerant is cooled by proxy. It morphs from a gaseous state to a liquid one as it absorbs heat from your home's air. The contact with the frosty refrigerant allows the air to cool down significantly.
Once the refrigerant has absorbed the heat, it needs a place to go. Condensing units are once again a vital part of this whole process.
The first stop for the refrigerant's return trip to the condensing unit is the compressor. This device adds pressure to the refrigerant, increasing its temperature in the process. It then goes back through the condenser coils.
The refrigerant's temperature increase is only temporary. After going through the compressor and the condenser coils, it's greeted by the condensing unit's fan.
As the fan runs, the air is expelled, which cools down the refrigerant inside the unit. It's an inverse of what happened inside. Instead of the cold refrigerant warming up, it's warm refrigerant cooling down.
This explains why you might've noticed a central air conditioning condensing unit blowing hot air. It should also give you a good idea of how hot refrigerant can get.
After the cooling process is completed, the refrigerant re-enters a gaseous state. The cycle can now begin again.
Although the condensing unit fan plays an important role in cooling down the refrigerant, it's not the only part.
Just as pressurizing the refrigerant warms it up, depressurizing it cools it back down. This is accomplished through metering devices.
Metering devices are positioned inside your home, ahead of the evaporator coils. These devices are simply holes for your pressurized refrigerant to go through. The pressure goes down and so does the refrigerant's temperature.
We've hopefully shown just how crucial refrigerant is for keeping your central air conditioning running and keeping your home cool. It's also most important to be aware of the risks associated with refrigerant.
A refrigerant leak is concerning for two big reasons. First, it means that your central air conditioning unit can't perform as it should. Secondly, it means you're at risk for health and safety issues caused by leaks.
Refrigerant Leak Causes
There's no singular culprit for refrigerant leaks. However, these are some of the most common reasons.
Poor Central Air Conditioning Installation
Inefficient installation practices could lead to refrigerant dripping out of your unit. At 1-800-Plumber +Air of Pearland, we can guarantee professional installation that leaves no room for error.
Central Air Conditioning Vibration
Vibrations can affect even properly installed central air conditioning systems and cause refrigerant to leak. Joints can start to loosen due to age and continued usage.
Damaged Line Set
The line set is what allows refrigerant to flow between the outside and inside of your home. If this is impacted, refrigerant meant to go between the condensing unit and air handler or furnace can end up leaking out.
Earlier in this guide, we mentioned that condenser coils are partially made of copper. These can be damaged via common household activities that release chemicals into the air. These activities include spraying air fresheners, household cleaners, and hairsprays. As the copper tubing protecting the coils is worn away, multiple leaks can occur.
Copper tubing can also become naturally worn down through years of pressurized refrigerant running through a central air conditioning unit.
Refrigerant Leak Health Risks
A refrigerant leak can cause numerous health problems. Seek medical attention right away if you've noticed any of the following symptoms in you or in any members of your household, including your pets.
Fluid buildup inside lungs
Difficulty thinking clearly
Irritated skin and/or eyes
Refrigerant has a very faint odor, and you might not see the leak happening. However, refrigerant poisoning does not discriminate. Your first priority needs to be receiving medical attention. Then, you should contact 1-800-Plumber +Air of Northwest Houston to resolve the leak and make your central air conditioning unit stronger than before.
Choosing Your Central Air Conditioning System
If you don't already own a central air conditioning system or are looking to revamp your existing system entirely, these are the two things you need to focus on the most.
Every household appliance, whether it's your refrigerator, washing machine and dryer, or central air conditioning system, needs to be energy efficient. This allows you to enjoy lowered energy bills and enjoy home comforts in a far more environmentally sound way. Look at a central air conditioning system's SEER (seasonal energy efficiency ratio) before buying.
The higher the rating, the better. Air conditioning SEERs need to be at least 13. You should also seek out systems with ENERGY STAR seals of approval, courtesy of the Environmental Protection Agency.
A top-of-the-line central air conditioning system goes further than just cooling your home. Modern systems come with features such as check lights reminding users to inspect filters, switches that automatically shut off the fan, and generally quiet operation.
A central air conditioning system will typically last for up to 20 years. If yours is approaching two decades, pay close attention to its performance. It's worth upgrading your system even if it's still mostly operating efficiently. There could be an even better system waiting for you.
Call the Central Air Conditioning Experts
Need a central air conditioning system installed, inspected, or repaired? 1-800-Plumber +Air of Northwest Houston is here to help. We have an expert team of dedicated professionals, eager to tackle any issue you might have with your central air conditioning.
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Mark was great! He took the time to not only give a price, but explain everything a new system could do and how it would benefit them not just in heating and cooling, but dust reduction, utility bills, etc. Very Very pleased.
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This was THE most painless repair experience! We had a leak in a pipe behind our water heater, spewing water out into space, ugh. Joe and his apprentice, Dan, were here in about an hour or so. They were both so very friendly from the moment they showed up at the front door! After they determined the problem, we discussed the needed repair, and then they began to replace the pipe(s) behind the water heater. This was pretty much an all-day job and I can honestly say it was no problem having them in my home. They were not only professional and courteous employees; they were two very kind individuals, who were also comfortable and friendly around my crazy dogs! I have had nothing but the finest experiences with this company and cannot recommend them highly enough! They are the best!
Kyle, was great! 800-PLUMBER called to say when he would arrive, and he was right on time. He even completed another job that wasn't planned on my end while he was there. I would recommend 800-Plumber to any of my family or friends. Laura Clear Lake
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