I'm working on a large water source heat pump installation. Several units are going down on high pressure safety. I checked the two water pumps delivering cooling tower water to the system, they are in a parallel configuration. Both pumps show 40 psig inlet pressure, one of the pumps shows 150 psig head and the other shows around 80 psig head. What's going on? I thought both pumps have to operate at the same head pressure when running parallel.
Any help or information will be appreciated.
Both pumps are running. I have not checked amp draws or anything yet.
Any help or information will be appreciated.
Both pumps are running. I have not checked amp draws or anything yet.