The majority of people associate cold with air conditioning, but what’s really happening is the unit transfers heat from the inside of the home to the outside. Once the heat is removed from your home, what’s left is the cold air that cools your home during warm temperatures.
A central air conditioning system has an indoor and outdoor unit. The two units work simultaneously to keep the air in your home comfortable.
Actually, air conditioners work the same way as refrigerators. But with an air conditioner, rather than cooling a small space like a refrigerator, it cools an entire home.
The machine has three main parts: a compressor, a condenser and an evaporator. The compressor and condenser are typically located on the outside of the air conditioner. The evaporator, which is located on the inside of the home heats your house.
Warm air from each room is sucked in through a grille at the base of the machine. Then a coolant that converts from a gas to a liquid and then back again transfers heat from the air inside of a home to the outside air.
A dehumidifier removes any excess moisture in this process. Water, propane, and other fluids are sometimes in a vapor or gas state and sometimes in a liquid state, depending on the temperature and pressure to which they are subjected.
The compressor raises refrigerant pressure and then lowers it again. Although the refrigerant gas coming out of the evaporator is only slightly warmer than the liquid refrigerant going in, it is hot. The heat is absorbed as it changed state from a liquid to a gas. To make the refrigerant ready to do further cooling, it’s necessary to get rid of that heat and convert the refrigerant back to a cold liquid again. This is done through the condenser.
The outdoor unit is where the heat from inside your home is dispersed. It contains the compressor, which is a condenser coil and a fan. The heat absorbed from your home’s air is transferred to the refrigerant and then pumped to the outdoor unit. As the heat is absorbed and moved by the refrigerant to the outdoor coil, it passes through the compressor.
The energy to do all of this is used by the motor that runs the compressor.
As the coolant passes through the condenser, a fan blows air across the condenser coil, which helps to cool it. The heat from inside the home is then distributed outside and the coolant is pumped back inside. The process continually repeats until the unit reaches the desired temperature.