The "Cool" mode on an air conditioner (AC) is the standard mode used to lower the temperature of a room or an enclosed space to provide a more comfortable and cooler environment during hot weather. When the AC is set to the "Cool" mode, it functions by extracting heat from the indoor air and releasing it outside, resulting in a decrease in room temperature.
If the "Cool" mode is not used and the AC is set to other modes like "Fan" or "Dry," the air conditioner will not actively lower the room temperature. Instead, it will either circulate the existing air in the room (Fan mode) or reduce the humidity without significantly cooling the space (Dry mode).
Here's what happens in each mode:
Cool Mode: The AC works to cool the indoor air by absorbing heat from the room and transferring it to the outside through a refrigeration cycle. It cycles the refrigerant through the evaporator coil, where it absorbs heat from the indoor air, and then releases that heat to the outside through the condenser coil. As a result, the indoor temperature drops, making the room cooler and more comfortable.
Fan Mode: In this mode, the air conditioner's compressor is usually turned off, and only the fan is active. The AC simply circulates the air in the room without actively cooling it. It can be useful when you want to create airflow or mix the conditioned air with the ambient air, helping to improve ventilation.
Dry Mode: The dry mode is designed to reduce humidity levels in the room without significantly lowering the temperature. The AC runs its compressor and removes excess moisture from the air. It can be beneficial in damp or humid conditions when you want to achieve a more comfortable indoor environment without making the room too cold.
To effectively cool a room, it's essential to use the "Cool" mode on the air conditioner. If you solely use the "Fan" or "Dry" mode, the room temperature will not drop, and you won't get the cooling effect you desire. In hot weather, using the "Cool" mode will provide the most efficient cooling and help maintain a comfortable indoor climate.