Outdoor air driven by the Air Movement Module enters the air supply side of the Dehumidification Module. There, through the process of multi-stage differential dehumidification, its moisture content decreases without temperature increase. This dry air flows into the Temperature Adjustment Module where it is cooled by indirect evaporative cooling and optionally by direct evaporative cooling and is then distributed to the building.

After gaining heat and moisture in the building, the air enters the return side of the Temperature Adjustment Module where it is cooled to its saturation temperature in the indirect evaporative coolers and then flows to the return side of the Dehumidification Module. There it remains saturated and increases in temperature while absorbing heat from the supply air by means of liquid-to-liquid heat exchangers. Finally, the exhaust air is discharged into the atmosphere.

The desiccant solution becomes diluted after absorbing moisture from the air in the Dehumidification Module. It is recirculated to the Regenerator Module to be reconcentrated and returned to the Dehumidification Module for reuse.

This air conditioner works with a regenerator module:
Hot Water Regenerators.