Which chapter addresses HVAC Commissioning in Existing Buildings?

• A. Chapter 4
• B. Chapter 8
• C. Chapter 7
• D. Chapter 5

Answer: (C)

When you’re dealing with HVAC systems already installed and in operation, the focus is on retro-commissioning and ongoing commissioning to verify and improve performance in the real building, with existing equipment and occupancy patterns. This is exactly what Chapter seven covers, including how to assess current performance, identify faults, adjust controls and sequences, and verify energy and comfort outcomes after occupancy. That alignment with existing facilities—rather than design, installation, or new-construction topics—makes it the best fit for HVAC commissioning in existing buildings. The other chapters address different scopes, such as new construction or broader topics, which don’t center on the realities of operating and optimizing existing systems.