IIAR Ammonia Refrigeration Education And Training Program -- Module 3 -- Evaporators This was from my roommate when I was at Colorado State University in 1989. He aquired these books in 1998, and photocopied them as well as scanned them into a PDF file for me. I was interested in HVAC then and now, especially enviromentlly friendly HVAC that uses naturally occuring chemicals that can be found in the environment naturally (which I believe is usually "GREEN").
