As an expert in the field of air conditioning and HVAC systems, I am often asked about the differences between the two and how they work. Many people are confused about whether air conditioning is for heating or cooling, and the answer is both. Let me break it down for you. An AC unit is a system that cools your home by using a cool indoor coil called an evaporator. The heat that is accumulated outside is then released through a hot outdoor coil called a condenser.
These systems, which typically use vapor compression refrigeration, come in various sizes, from small units used in vehicles or individual rooms to large units that can cool entire buildings. In recent years, air source heat pumps have become more popular in colder climates as they can be used for both heating and cooling. In the air conditioning industry, you may hear the term HVAC used instead of AC. HVAC stands for heating, ventilation, and air conditioning, while air conditioning simply refers to cooling. This can be confusing, but essentially HVAC deals with both heating and cooling, while air conditioning only refers to cooling.
The most common types of air conditioning systems are window units and central air conditioning. It's important to note that while all HVAC units include air conditioning components, not all air conditioning units are considered HVAC units. This is because HVAC systems also include heat pumps and gas furnaces, which are responsible for heating the air in your building. Additionally, HVAC systems provide ventilation to allow moisture to escape. Your HVAC unit includes the boiler, the air conditioning unit (if you have one), and any ducts or vents designed to release moisture. The main function of air conditioning is to cool indoor air during warmer periods.
It works by removing heat and humidity from the interior of the building and releasing it outside through a system of full coils filled with coolant.