Air Conditioner Fan Assembly with Weep Hole and Segmented Filtration

The air filter assembly is divided into multiple filter media sections (first filter media, second filter media, third filter media) arranged in series within the bulkhead. This segmentation allows each filter section to handle a portion of the filtration task, enabling effective filtration at higher flow rates while maintaining a relatively simple overall structure that integrates into the existing make-up air subsystem.

The patent converts the harmful effect of moisture accumulation into a beneficial drainage system. The weep hole is positioned at the lowest point of the bulkhead, and the drain line is configured to collect and remove condensation from the make-up air pathway. This transforms the problematic moisture into a manageable drainage flow, allowing the auxiliary fan to operate at higher flow rates without suffering from condensation issues.

The patent merges the filter assembly directly into the bulkhead structure, integrating the first, second, and third filter media within the existing bulkhead geometry. The filter assembly is positioned to utilize the bulkhead's internal space, and the drain line is integrated into the same structure. This merging approach achieves multi-stage filtration without adding separate external filter housings or complex assembly structures.