Air Conditioning - Industrial Chillers
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lhewitt
08-25-06, 11:02 AM
I'm in need of quick help if possible. I have several (12 total) 400 ton centrifigal chillers. Two of them are Carriers that I have all the info on. The remainder are York (7) and Trane (3). All use R-134a. The Carriers use a ISO 68 viscosity oil (POE oil). Does anyone know what oil the York and Tranes are supposed to use? Or, at least, does anyone know what viscosity oil these units should run? While reviewing oil samples it appears the viscosity is too low, at least for the Carriers....averages 25 cSt at 40'C. Thanks for the help!
GregH
08-26-06, 05:43 AM
You will need to contact York and Trane to find out what oil to use.
If the oil you are looking at is used it is impossible to guage the viscosity by looking at it.
If there is a problem with the units the oil could have broken down and look thinner that it was originally.
I would suggest that if you are responsible for this equipment, coming to a forum that mainly deals with residential equipment for advice may be selling yourself short.
Your equipment is worth a great deal of money and using any less that the manufacturers advice could cause a major amount of damage.
If the oil you are looking at is used it is impossible to guage the viscosity by looking at it.
If there is a problem with the units the oil could have broken down and look thinner that it was originally.
I would suggest that if you are responsible for this equipment, coming to a forum that mainly deals with residential equipment for advice may be selling yourself short.
Your equipment is worth a great deal of money and using any less that the manufacturers advice could cause a major amount of damage.
Andrew
08-26-06, 10:35 PM
I know were not supposed to list other sites, but I think this would help you. This website is geared to professionals:
www.hvac-talk.com/vbb/
You might have more luck there since your machines are beyond the scope of the average DIY'er.
Good luck
www.hvac-talk.com/vbb/
You might have more luck there since your machines are beyond the scope of the average DIY'er.
Good luck
lhewitt
08-28-06, 04:07 AM
Thanks guys....this isn't my area of responsibility (the chillers) but I was being stonewalled by several of our employees and our service contractor. I was asked to look into the oil analysis and see what, if anything, may have caused us to lose a thrust bearing (very expensive repair). It appears the wrong oil may have been used, maybe for as long as 8k - 10k hours. I have contacted Trane and York and will receive the info I need this week but thought I'd give it a shot in here as well. Thanks again.