In the standard commissioning process, there are two primary technical activities that occur on site at the end of construction and prior to systems acceptance by the owner. The first is completion of Pre-Functional Checklists (PFC), and the second is execution of the Functional Performance Tests (FPT).
In almost all cases, the PFCs are developed by the commissioning professional for completion in the field by the contractors responsible for each system. The commissioning professional collects and reviews the PFCs as a prerequisite for performing the FPTs. The expectation is that 100% of all commissioned systems are subject to the PFC process. This includes each HVAC terminal unit, lighting control zone, and plumbing mixing valve, as well as the central mechanical and electrical systems.