Functional performance tests are conducted in order to:

Functional performance tests are essential in assessing whether a system operates according to specified design and operational standards. These tests are conducted to validate that all components of a building's systems—such as HVAC, lighting, plumbing, and electrical systems—perform as intended under normal operating conditions.

By executing these tests, the commissioning team can identify any discrepancies between the actual performance of the system and the expected performance criteria outlined in the design documents. Successful functional performance testing ensures that the systems are not only installed correctly but are also optimized for efficiency, reliability, and safety.

This rigorous approach contributes to system performance that adheres to industry standards, enhancing overall building functionality and occupant comfort. In contrast, the other options either focus on aspects not directly related to performance validation or involve processes that don’t fall under the primary purpose of functional performance testing.