What is commissioning in the context of 62.1?

• A. The process of installing equipment
• B. A process to verify that the installed ventilation system operates as designed and delivers required IAQ
• C. The occupant comfort survey
• D. The routine maintenance schedule

Answer: (B)

Commissioning in 62.1 means a deliberate verification process that the installed ventilation system operates as it was designed to operate and delivers the required indoor air quality. It goes beyond simply putting equipment in place; it involves checking that the design intent is realized in practice—testing airflow rates, ensuring controls and sequences work correctly, confirming proper ventilation and outdoor air delivery, and documenting performance. This helps ensure the system will meet IAQ requirements for occupants when the building is in use.

Installing equipment is only part of the work, and not the full verification that the system actually delivers the intended IAQ. An occupant comfort survey happens after occupancy to assess comfort, not to verify design performance. A routine maintenance schedule is ongoing upkeep, not the initial verification that the system meets its design and IAQ goals.