[QUOTE=Healey Nut;12813321]If down time is critical then they should have a back up plan , either a back up chiller or at least the quick connects availabe for the water hookups for a rental chiller . Mechanical stuff breaks down thats why we have jobs , if the facility is to cheap to realize this and doesnt invest the money to protect its buisness from loss of production due to a failure thats not my problem .
True redundancy has a place but where do you stop with the making of a "plan B", the world is also changing and unfortunateley accountants are the decision makers not those with any engineering background. Investment in equipment is tied to ROI, LCC, etc. I can't always say the change is an improvement but it is the reality that reliable efficient performance is the key.
So what products/systems are going to go ahead, the one were additional standby capacity is installed just in case because mechanical stuff does break down or the system sold on reliability and minimum capaital investment supported with a pro-active maintenance regime.
Coming from the "long screwdriver and good ear" era I can also say these capabilities are also becoming rarer in the trade as is experience (from making the mistake before) so to survive long term in the business the technology to assist in this area must be accepted.
I guess the best example of the change is when you compare the efficiency and reliability of the 30 yr + equipment still running today to the new high efficiency equipment being installed that will be replaced at or near the end of it's life in 15-20 yrs time. You also did not need computer literacy to be a chiller mechanic but we all have accepted that change. End of the day does it matter because I guess neither of us will be worried about it, hopefully.