Cx-3 is the first of its kind design software that allows the user to write a detailed sequence of operation with the Commissioning Functional Test format. ATC/FPT all in one!  Functional Performance Test narrative module for documenting the verification demonstration process.

Truly unique in its format, Cx-3 is cost-effective when it comes to drafting the system function narratives beginning in the "Off" mode and then edited for all the other pertinent modes of operation (i.e., On-Maximum Cooling, Airside Economizer, etc.). Applicable for use in producing the building system sequence of operation, this process inherently becomes the method by which the contractor will demonstrate the system to the commissioning firm and the facility operation group when it is time to operate the system.

Through a combination of equipment and device CAD icons, this standardized text can be edited by the design engineer or the commissioning engineer and included in Division 18000, Part 3-Execution. The process is easy, efficient, and based on a time management process both when creating the functional performance test narrative and when observing the pass-fail system demonstration.

In the construction phase, it is ideally suited for downloading into a laptop computer for effectively documenting the results when observing the system demonstration. Cx-3 includes a "pass-fail" check box for each equipment and device "reaction" to a system "action" (i.e., VAV with Heat Terminal is in the heating mode of operation). "Failed" devices are linked to an Excel "Corrective Act Log" to track deficiencies. This program can also be applied to electrical, plumbing, fire protection and process system flow diagrams.

An additional benefit of Cx-3 is each Sequence/ Flow Diagram can be printed out and placed in an operator's handbook for training or located at the unit for quick reference.

Cx-3 differentiates itself from any other method of writing functional performance test narratives because it is simple, standardized and rounds out the entire Commissioning 1-2-3 application beginning in the design phase through the warranty phase. It is also ideally suited for trouble-shooting problematic systems, retro-commissioning and re-commissioning a building system.