Your AC unit is designed to regulate your home’s indoor air temperature, but how exactly does it work? Compared to a simple electric fan, an AC system has a much more complex process of getting the job done. In this post, our AC and furnace repair specialists share a quick rundown of one of the most important appliances in your home.
Pressure & Heat Transfer
While fans operate on a purely mechanical basis, air conditioning units change the temperature in your home by using the principles of pressure and heat transfer. This is made possible by different components within the system, including the fan, compressor, coils and valves and the refrigerant.
Taking Air In
The process starts with the unit’s fan sucking in air through the filters and blowing it over the evaporator coil. Within that coil, hot refrigerant from the condenser loses pressure and turns into a gas while also losing a lot of heat. Air conditioning repair service specialists say that this de-pressurizing process makes the evaporator coil cold enough to draw heat from the air passing through it.
Blowing the Air Out
Once the evaporator coil has cooled the air, the fan blows it back out into the room while also taking in more warm air at the same time. The gas inside the evaporating coil, having absorbed the heat from the air, travels back to the condenser. A large fan blows air over the compressor and the coil, aided by cooling fins to further draw out heat from the unit.
Restarting the Cycle
The gas builds up pressure inside the condenser, where it turns back into liquid form and is ready to be sent back to the evaporator coil for further cooling. This restarts the cooling cycle until the unit’s automated thermostat senses that the indoor temperature has reached the desired setting. Having the system checked by a certified air conditioning contractor will ensure that your unit can carry out this process without experiencing problems related to dirt clogging and component failure.
Learn more about how to take good care of your home’s air conditioner from Air Pro Inc., the leading local expert in HVAC services. Contact us at (505) 224-2806 or fill out this contact form to request an estimate.