Air Conditioning vs a Ventilation System
Both an Air Conditioner and a Ventilation System are used to improve the indoor environment, but what is the difference between the two and why might you consider both?
What is an Air Conditioner?
AC is a system used to cool down an indoor space by filling the room with cold air whilst the heat and humidity are transferred to an area outside. An AC system can change the temperature, humidity and general quality of air to make your inside environment more comfortable.
How does Air Conditioning work?
A fan blows hot indoor air across the cold evaporator coil where the heat is taken in by the refrigerant. As the heat is absorbed, the refrigerant turns from a liquid state into a gas and is then pressed between two solid objects to raise the pressure for the condensing process.
Once the refrigerant reaches the condenser outdoors, it is exposed to the air outside. The heat leaves the refrigerant which cools its temperature and turns it back into a liquid.
The liquid then travels back indoors, and the process is repeated until the inside space reaches the desired temperature.
What is a Ventilation System?
A Ventilation System replaces contaminated indoor air with fresh air from outside. The system controls the indoor air quality to avoid build-up of bacteria, pollutants and unpleasant odours.
A good Ventilation System allows for control of the airflow in the building.
How does the Ventilation System work?
The air is pulled from the outside and distributed by fans and ductwork arrangements within the indoor space. It is then spread in each room by air terminal devices or diffusers.
Which option is right for you?
An AC system should be considered if you are after a comfortable air temperature and you aren’t too focused on the air quality.
A Ventilation System on the other hand is more suitable for the environments where dirty air is a problem like smaller spaces or factories.