I was asked on an interview what I am comfortable with and not comfortable with.
I listed chillers and heat pump defrost control boards.
Of course I have worked on these systems, but was never trained on them nor servied them enough to get a good handle on them.
So my question is; What do I need to know about chillers in general, to be most affective in servicing them?
Let's narrow down the field here. Say 50 tons or less.
What parameters need to be measured / tested, in order to troubleshoot the system?
What are the operating parameters of a properly operating chiller?
What are the common probelms?
2) not simple
What is the sequence of operation on a chiler system?