As buildings become increasingly sophisticated and energy-efficient, the placement of HVAC (Heating, Ventilation, and Air Conditioning) equipment plays a crucial role in optimizing performance, comfort, and sustainability. This preface introduces the importance of strategic HVAC equipment placement and highlights the key considerations addressed in this guide. From efficiency and accessibility to ventilation and structural support, the decisions surrounding HVAC equipment installation profoundly impact building operation and occupant satisfaction. By delving into the nuances of placement strategies, this guide aims to provide valuable insights and practical guidance for architects, engineers, facility managers, and HVAC professionals seeking to optimize the design and installation of HVAC systems in various building environments.