We provide comprehensive design and engineering services for Direct Expansion (DX) air-conditioning systems, tailored to the cooling requirements and operational needs of residential, commercial, and industrial buildings. Our scope includes cooling load calculations, equipment selection, refrigerant piping design and sizing, indoor and outdoor unit coordination, condensate drainage, and integration with electrical and control systems. We evaluate split systems, VRF/VRV configurations, and packaged DX units to deliver reliable cooling performance, energy efficiency, ease of maintenance, and compliance with applicable engineering standards and project specifications.