In which phase is the systems manual outline-expanded?

• A. Planning Phase
• B. Occupancy and Operations Phase
• C. Construction Phase
• D. Design Phase

Answer: (D)

Understanding this topic means recognizing when the project team fully defines how each building system should operate. The systems manual captures design intent, control sequences, operating modes, alarms, and interactions between systems. That outline is expanded during the Design Phase because this is when the team formalizes the design philosophy, control strategies, and performance criteria into a concrete reference. Having a more detailed outline at this stage ensures the installation and commissioning work aligns with the intended behavior and provides a solid basis for operator training and the eventual operations and maintenance documentation. Early planning is too abstract for detailed operations, construction focuses on installing what’s designed, and occupancy/operations uses the finalized manual rather than expanding its outline.