HVAC

Change or Modify the Pump

After reducing system head loss, you will probably find you have more water running through the system than the chiller and pump can handle within specified limits. The next step is to consider having the manufacturer trim the pump impeller (or change the pump) to deliver the specified GPM (about 2.4 GPM per ton) at the new, lower total head loss. If you measure flow and power at the pump motor, you could see a performance of about .026- .03 kw/ton.