No, a standard split air conditioning (AC) system does not typically take fresh air from the atmosphere. Split AC units are designed to cool and circulate the air within a closed space, such as a room or an enclosed area.
The indoor unit of a split AC, often referred to as the evaporator unit or air handler, is responsible for cooling the air. It draws in air from the room where it is installed, passes it over the evaporator coil, and cools it down before blowing it back into the room. The cooled air remains within the room, and the cycle continues to maintain a comfortable temperature.
Split AC systems are primarily designed for air recirculation, which means they recirculate the existing air in the room rather than bringing in fresh air from outside. They do not have a dedicated mechanism to actively introduce fresh air from the atmosphere.
However, it's worth noting that some advanced split AC models may offer additional features like ventilation modes or the ability to connect to an external fresh air system. These features allow for a controlled amount of fresh air to be introduced into the room. Such capabilities may be available in specific models or require additional components or modifications to the AC system.
If you require a continuous supply of fresh air in your space, it's advisable to consider a separate ventilation system, such as a window, wall-mounted, or centralized ventilation system, that is designed explicitly for introducing fresh air from the outside.