I maintain Several new buildings, most were had the mechanicals done by the company that i am working for, with some of the specialized items getting Sub contracted out like installin the chiller in the basement and doing the Controlls for it. That said i had a call that the AC wasn't working in a few suites and found there Fan coils working fine, but i found the chiller in the basement had been shut down on an Alarm "Evaporator Water Flow loss". i cleared the Alarm and brought the unit back up, its been running with out issue for 2 weeks now. My concern is whether i should bring in our outside tech to look at the unit, he was in looking at it around the 10th of decemeber and didn't say anything was wrong. the pics are of the data screens on the unit My concern is the way the Oil preasure drops like a rock, as well as the "%RLA"? on the motor.
Any Advice? I am a plumber/gas fitter but not a refrigeration techie.