Air Conditioner Humidity-Based Drying to Reduce Noise and Mold Growth

The fan rotation speed is dynamically adjusted during the drying process. The controller initially rotates the fan at a first rotation speed to quickly remove condensed moisture, then switches to a second rotation speed (lower than the first) to continue drying. This dynamic speed adjustment allows the system to adapt to different drying stages, ensuring complete drying of all heat exchanger surfaces including edges while reducing noise during the later stage.

The drying process incorporates feedback control through a humidity sensor that detects humidity levels in the air passing through the heat exchanger. The controller monitors this humidity feedback and adjusts the fan rotation speed accordingly, switching between different speeds based on the detected humidity conditions. This feedback mechanism ensures thorough drying while optimizing noise levels.

The system uses dynamic fan speed adjustment to balance drying uniformity. The controller switches between a first rotation speed for rapid moisture removal from the central part and a second, lower rotation speed for completing the drying process. This dynamic approach ensures that both central and edge regions are sufficiently dried, achieving uniform drying across the entire heat exchanger surface.

The drying process is divided into periodic stages with different fan rotation speeds. The controller implements periodic action by switching between the first rotation speed (for rapid initial drying) and the second rotation speed (for completing drying). This periodic speed variation ensures that moisture is removed efficiently from all areas of the heat exchanger, including the edges.