Im looking for assistance, we have 8 of these 19DH Chillers on plant and we've done it all, maintenance, OHSA, B-Service(oil change), C-service (motor overhaul) in my years.
Currently we stuck with a problem, After start up chiller run for 15 min to half an hour on full load of 100% then all of a sudden the vane start closing till 0%and thats how it stays. The chiller doesnt trip, it just loses it load. We have been communicating with the supplier and checked the Vane close oil pressure switch if its faulty, but thats seem to be working fine.
Have anyone experienced a problem like this, i know these chillers are ancient. If anyone has problems on there side, i'll be happy to assist, im sure what ever problem you have, we might have came across it.