A major negative consequence often associated with construction-based commissioning is that it eliminates pre-design and design phase planning?

A major negative consequence often associated with construction-based commissioning is that it eliminates pre-design and design phase planning?

• A. It increases overall cost savings
• B. It eliminates the pre-design and design phase planning and preparation included in Comprehensive HVAC Commissioning
• C. It shortens project schedule
• D. It ensures a cooperative relationship between CA and contractor

Answer: (B)

Construction-based commissioning shifts the emphasis to testing and tuning during or after construction, which often shortchanges the pre-design and design-phase planning that comes with Comprehensive HVAC Commissioning. That early planning is where you lock in performance targets, system interfaces, control strategies, and acceptance criteria before installation starts. When those steps are skipped or rushed, you’re more likely to end up with misaligned design intent, unresolved integration issues, and gaps in documentation, which can lead to rework, deficiencies discovered late, and ultimately not achieving the intended performance. So this option identifies a real drawback of focusing commissioning activities in the construction phase: the loss of thorough pre-design planning that helps ensure the project meets its performance goals efficiently. The other choices describe potential benefits or outcomes that don’t reflect the negative consequence of bypassing early planning.

Construction-based commissioning shifts the emphasis to testing and tuning during or after construction, which often shortchanges the pre-design and design-phase planning that comes with Comprehensive HVAC Commissioning. That early planning is where you lock in performance targets, system interfaces, control strategies, and acceptance criteria before installation starts. When those steps are skipped or rushed, you’re more likely to end up with misaligned design intent, unresolved integration issues, and gaps in documentation, which can lead to rework, deficiencies discovered late, and ultimately not achieving the intended performance.

So this option identifies a real drawback of focusing commissioning activities in the construction phase: the loss of thorough pre-design planning that helps ensure the project meets its performance goals efficiently. The other choices describe potential benefits or outcomes that don’t reflect the negative consequence of bypassing early planning.