Originally Posted by
triggerhappy
I do not beleive that I have ever seen a open drive Trane Centravac.
The largest "Open Drive Centravacs" I have worked on were (6) Model # (OCV) were the original chillers installed @ Disney World in Orlando. Driven by GE-J47 jet engines with flexible shaft from the engines gearbox to the compressor. With only one set of vanes on the first stage, they would only unload to 40% of rated tonnage. Most failed within first year due to wear at tube supports in the evaporator. I do remember a VERY heated discussion with Tranes chief design engineer (Andy M.) as he assured to All present (Loudly) that Tranes tubes were rolled (expanded) at the supports and wear at the support could not happen...I snatched out a half a dozen tubes and requested an apology or a copper suppository was about to be administered. I never received an apology and as calmness set in, I forgot about the suppository statement.
Ain't "None" of us as smart as "All" of us..