Version 12 and Above
When a Pipe Specification is defined, several design limits can be specified in order to generate a warning if any calculated result (or entered design data) is outside of these limits.
In version 12 and above, Velocity, Pressure, and Reynolds Number limits can be specified.
Version 2009 and Before
Pressure outside Specification Design Limit (Nodes and Demands): This warning occurs when the user has specified pressure limits in the Design Limits section of the Specification dialog box.
If the pressure is greater than the design limit, the node will turn red. If the pressure is less than the design limit, the node will turn green.