Air Conditioning Heating and Ventilation Services

How Does an HVAC System Work?


How does your HVAC system actually work?

A common question homeowner have is “How does an HVAC system work?” Understanding how HVAC systems work can help you maintain the heating and cooling conditions in your home. HVAC HVAC stands for heating, ventilating, and air conditioning.

HVAC systems can be used for various thermodynamics applications. Your air conditioner is just one out of many HVAC systems as these can also be used in larger and more industrial settings.

Your home’s HVAC system is at work during those especially hot and cold days when you need to control your indoor temperature. To ensure you stay comfortable during these times, you must choose the right system and know how to operate it correctly. Going back to the question earlier, how does an HVAC system work? To give you more insight and answers, here are some points that can guide you in making decisions on air conditioning maintenance for your home.

HVAC System Components

It will be easier to understand your AC unit by familiarizing yourself with an HVAC system’s components. The most important parts include:


The thermostat allows you to control temperature and turn the system on or off. It may be manual or programmable depending on your system. In some cases, your system may also have additional features, such as automation through smart home devices. If your thermostat is programmable, the first thing you will likely do is adjust your settings based on how hot or cold you want your indoor temperature to be.

Indoor Unit

Your indoor unit may vary based on your system’s setup, but generally, it may consist of a heating furnace and your air conditioning system. The furnace uses a heat exchanger to heat air and keep your home warm, making it suitable for cold winter days.

Conversely, the AC unit cools the air and releases hot air to keep your home cooler. When searching for an HVAC system, it is important to get one with the proper SEER rating, which measures the ratio of the cooling output of your air conditioner. The higher the rating, the more energy efficient you can expect the system to be.

Air Return and Filter

The air return is the starting point of the HVAC system, drawing air through a filter to pass through the system. Since your filter will help the air go through smoothly, you have to make sure to clean your filters regularly and replace them whenever needed.

Outdoor Unit

Air conditioners typically have outdoor units installed to help provide the air flow needed for your home, so it comes with other parts like the compressor and condenser coils. To ensure that your system runs efficiently, you must keep the unit clean and free from debris.


Ductworks serve as the pathway for hot and cold air, ensuring that distribution is even. Nowadays, they are installed above ceilings to allow proper transport for the air. To keep them in their best condition, your ducts must be inspected and cleaned every two years to maintain your system’s efficiency.

How does an HVAC system work? Truthfully, HVAC systems can be complex and hard to understand. However, if you were to put it simply, the system works by circulating air from outdoors and heating or cooling it to regulate your home’s temperature and release stale air.

Contact ACHV for HVAC Services Today

If you need HVAC services for your home, it is best to contact professionals that you can trust. Call ACHV today at (727) 453-2432 or (813) 917-2982 to schedule a free consultation. You can also schedule your installation, repair, and maintenance needs. We will be more than happy to help you assess your needs to determine what services will work best for your home.

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