I am new to this HVAC Talk site as far as asking questions. I am doing a BACnet interface into the Lennox Prodigy Board and i am wondering if it is as easy as the book says or is there some thing that i need to know. The job basically is 9 RTU's and 4 for them are going to be feeding Fan Power Box (FPB) with electric heat strips. Does Lennox have some type of way to control static pressure that i need to set the prodigy board up for (nothing in the book says any thing about VFD). Is there a PDF i can down load off the internet that would have more info as far as BACnet Interfacing.