I'm in the process of obtaining new water temp gauges for feed and return. And I'm also replacing the garbage pressure gauges.
As for flow reading, I'm finding out about an inline flow meter to properly read the amount of flow.
I swear, taking over someone's headache is a bigger headache.
Apparently the second chiller unit adjacent to this one has been down for 5 years. I'm starting to wonder if this chiller alone can handle the load. But the on site mechanic states that it's been doing the job.
I also noticed a sound from the expansion valve on one of the compressors. It makes a high pitch sound then stops. I threw the gauges on it and found that pressure is going up and dropping continuously.
At the time outside ambient temp was 103 degrees.
Suction side - 85 to 100 then dropped back down.
Liquidbside - 325 to 350/370 then dropped back down.
As of yesterday I didn't have a chance to check the pressures but The expansion valve is still making the same noise and I seen that one has been changed in the past.