Your commissioning agent performs functional tests (typical to the ACG, BOMA, NCBC) guidelines. These are functional tests that verify the equipment is functioning, and at a basic level that the system is operating as intended. However, passing a set of functional tests is entirely different than operating efficiently 24×365. Also, commissioning agents are contracted to test based on the specification, so if the operation “meets spec,” it passes. Determining if it is what the owner needs is a different story.