Dear Paldex,

Keep in mind that you should generate simple force in PIPENET (uni-directional force). Then, when imported to CAESAR II you can define the direction of force. CAESAR II automatically generates dynamic water hammer input file from FRC file. If you want to perform time history analysis, you should instruct CAESAR II to not generate dynamic input file, but you should create TH input file by yourself.
Remember, PIPENET model doesn't have geometry in XYZ coordinate system. There are only length and elevation change from point to point.
The location of force that you define in PIPENET, is a distance between 2 nodes along the direction of pipe.