How central air conditioning works

Most homes have a central air conditioning system that cools the entire house by circulating cold air through ducts in the walls and ceiling. Let’s look at how the typical central air conditioners in a house work:

We set the target temperature using a thermostat. When the temperature goes above the setting in the thermostat, a signal goes to the air conditioner triggering a series of events.

The air conditioner starts pulling air in from all the rooms in the house through return-air vents. The air from these vents goes through a series of filters that remove dust and other particulate matter before it enters the air conditioner. Despite what most people believe, air conditioners do not draw outside air.

There are three components to most air conditioners: the compressor, condenser, and the evaporator. The difference between most system is placement. The split systems place the compressor and condenser away from the evaporator. There are units where all the components are together in the same package.

The air goes around a series of copper pipes that contain the refrigerant which cools the air. The refrigerant goes from gas to liquid and back again to gas as it receives and releases the heat from the air flowing around the tubes. The cool air is then sent back through ducts into the rooms. The same process repeats itself until the air is at the desired temperature.

Article by The experts in portable and industrial air conditioning systems for your home or workplace.