![Discharge Discharge](/uploads/1/2/4/9/124992696/879457059.jpg)
![Temperature Temperature](/uploads/1/2/4/9/124992696/259407800.jpg)
It is most important to assure that the coolers are kept clean inside and out. Oil flooded rotary screw compressors typically operate in the 160 – 180 degree F range. That same machine will probably not shut down due to high temperature until it reaches 230 degrees F. But bad things begin to happen long before it shuts down.
Just wondering what your opinions were on running your liquid and suction lines together as a heat exchanger for medium temperature coolers. Today I found a condensing unit running at 265 degrees discharge temp. I checked my superheat at the coil and it was 5 degrees. The superheat at the compresor was 65 degrees. I understand you want to subcool the liquid as much as possible. However, I have been taught never to do this with the suction line on coolers that run 22 because discharge temperatures are already quite high without excess superheat.
Thanks