Thanks Danb,
Of course, nozzle rotation sign depends on Elevation from Tank bottom and orientation of nozzle with respect to axis.

In the attached image below,

Let us take a case of Outlet nozzle which is at low elevation from tank bottom.
The theta value shown in error report is -1.21 deg (example: shown in attached image)
however in while feeding input of this rotation as a vector, the value should be entered as Rx= +1.21 deg and not as -1.21 deg
Generally it may be missed while feeding as an input vector.

This was my query!


Thanks