From the water flow rate it picks the Schedule 40 steel pipe size for chilled or hot water and shows the velocity and friction loss. You can also choose a pipe size and check it.
The method follows ASHRAE Fundamentals pipe sizing for water.
Flow = cooling load ÷ (4.186 × ΔT). Use the CHW Flow calculator, or read the guide Chilled water flow rate from cooling capacity.
Add up the pipe, fittings and equipment losses on the index circuit with the CHW Pump Head calculator.
CHW Flow · CHW Pump Head · CHW System Volume · Chilled water flow guide
Results are for preliminary design. Verify final selections against project specifications, applicable codes and manufacturer data.