This advanced HVAC modeling and simulation platform enables engineers and building professionals to design, analyze, and optimize heating, ventilation, and air conditioning systems through physics-based digital twins, dynamic performance testing, and integrated BIM workflows. Its main features include system performance simulation prior to installation, energy-efficient design validation, component selection automation, full lifecycle support from concept to commissioning, and tools for decarbonization and energy savings, addressing challenges such as reducing CO₂ emissions, streamlining project workflows, improving system reliability, and minimizing costly rework. It is tailored for HVAC engineers, mechanical designers, building energy consultants, and facility managers seeking to improve system efficiency, ensure design accuracy, accelerate project delivery, and contribute to sustainable building practices.