![]() ![]() an indoor unit (typically either a furnace or fan coil) that houses the evaporator coil and fan to circulate the cooled air.an outdoor unit that houses a fan, condenser coil and compressor.a thermostat that controls system operation.What is Central Air?Ī typical air conditioning system, often referred to as “central air” or “split-system air conditioning”, normally includes the following: So before we answer the question of how do air conditioners work, it will be helpful to know what makes up a typical system. They also can control humidity, air quality and airflow within your home. Many homes in North America rely on split-system air conditioners, often referred to as “central air.” Air conditioning systems include a number of components and do more than just cool the air inside. This drawing, the result of Willis Carrier’s groundbreaking design, was submitted to Sackett & Wilhelms on Jand provided the basis for the invention that would change the world, the first modern air conditioning system. This cycle continues until your home has reached the desired temperature. ![]() The heat is then released into the outdoor air as the refrigerant returns to a liquid state. The cooled air is then circulated throughout the home while the heated evaporated gas is sent back outside to the compressor. A fan blows indoor air across the cold evaporator coil where the heat inside the home is absorbed into the refrigerant. Here the liquid refrigerant evaporates, and cools the indoor coil. Then the refrigerant travels back indoors and enters the evaporator coil. The compressor raises the pressure and temperature of the refrigerant gas and sends it to the condenser coil where it is converted to a liquid. These components work together to quickly convert the refrigerant from gas to liquid and back again. A standard air conditioner or cooling system uses a specialized chemical called refrigerant, and has three main mechanical components: a compressor, a condenser coil and an evaporator coil. It returns the cooled air to the indoor space, and transfers the unwanted heat and humidity outside. An air conditioner provides cold air inside your home or enclosed space by actually removing heat and humidity from the indoor air. Air conditioners come in a variety of shapes and sizes, but they all operate on the same basic premise. ![]()
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