Want to hear your opinions on chillers running with low load and cycling. I have a Trane cvhf 500ton chiller that runs 85% of the time @ 20% and with cooler fall temps it has started cycling off and on. The chilled water stpt is 50 and I moved the dead band from +-3 to +-5 this helped the cycling some. Over the weekend the compressor started 22 times in the span of about 2 hours. I talked to a guy at Trane he was concerned by this, the management here is not. In your opinion should I really push this issue to have it resolved or do you think the chiller will fare fine. Any increase load is most likely not going to happen until spring.
On a side note any way to eak out load from the AHU's there are 6 running @ 30% maintaining a room temp of 55 degrees. Was thinking about moving the set point on 3 of them to 58 to make the other 3 work a little harder?