•Centralized cooling/heating plants (chillers, boilers, heat pumps).

• District cooling and thermal energy storage systems.

• Air distribution systems (VAV, CAV, displacement ventilation, underfloor air distribution).

• Indoor air quality design, filtration, and fresh air treatment.

• Energy-efficient system design in line with ASHRAE and local energy codes.

• Specialized HVAC applications: data canters, clean rooms, laboratories, industrial facilities.