Back around 2002, I came up with this idea based on a perceived need to have commissioning software available for me to write functional performance test (FPT) documents. At that time (and I still feel this way today), I believed the cornerstone to commissioning was the FPT. If you try and find HVAC software to write the FPTs, you probably won’t find one because there isn’t one that electronically works with you to draft the individual sequence of operation modes, with action-reaction capabilities per device in the specific HVAC system. Unfortunately, there is no industry standard for writing an FPT, so what I’ve found online was a wide range of written FPT approaches to the problem varying in pages and content.
Faced with this challenge, and with no skills to write the computer program, I set out to find a software developer to take my ideas and create a program. The results were really good and so I used this Cx-3 program in the years to come. Unfortunately, my Cx-3 program was built using Microsoft’s Visio software as the platform, and so when Microsoft decided to upgrade their software, I had to go back to the development consultant to update my software. This cost me a lot of money each time Microsoft had the financial urge to upgrade.