Only comment I would add is that for condenser water piping design the following comments apply.
- You typically want to go with a faster velocity as it helps to keep any air from collecting together and forming air bubbles that can cause trouble with pumps and high points.
- The faster the water flow the less likely you are to have dirt come out of solution and deposit on the pipe, chiller tubes, coils, etc....
- I usually try to stay between 2.5'/100' loss and 4'