The only reason I renewed my NACHI membership this year was this board and some interesting discussion about IR. But the constant unprofessional conduct/posts of both members and non members on these boards both in public and private sections has finally gotten to me and I am done with it.
Charley and David is you want to email me I will be happy to keep exploring those AC IR ideas, but I will no longer contribute here.
It is a shame, there are some very good members and I have learned a lot over the years from different people. But I no longer want to be associated with the stuff that goes on here.
Good luck all.