SEAS Systems was implemented in a cutting-edge case study to deliver a sustainable, multi-functional solution for a hotel, integrating drinking water production, domestic hot water supply, and air-cooling. By optimizing HVAC operations for atmospheric water condensation, the system enhanced resource efficiency in an arid climate. A sophisticated simulation model was developed to evaluate annual water savings and system performance, demonstrating significant reductions in energy and water consumption. This innovative approach highlights the potential of integrated HVAC systems to address critical water scarcity challenges while maintaining thermal comfort.