Hi,
I am currently working on a York Centrifugal chiller.This unit has a sub cooler in the condenser & we are having alot of leaks here so now we have decided to retube the sub cooler. The tubes sit on a baffle plate at each end & are supported at two different points inside by a type of mesh wire, now this is where the problem starts. the tubes are leaking at the points where the tubing sits on this mesh it is like the mesh is wearing it's way through the piping from vibration or whatever.We have done vibration analysis etc & all is normal. We usually only run the chiller on about 50/60% load as that is all the demand that is there.
Just wondering if anybody else has come across this problem & if so how did you resolve it I know we are going to retube the chiller but the same thing is going to happen again.
Also can anybody recommend a company in Ireland or the UK that are good at retubing shell & tube Condensers/Evaporators?

Thanks in advance