Dear all,

For making no load on Equipmnet nozzle, in first spring hanger (from anchor point) data sheet, i specified free restraint at node (anchor node point).after running also anchor shows some load.

but anchor node should show zero load? why caesar shows some load at anchor point after specifying free restraint at node (anchor point)

There's more going on in your system than just the anchor and your hanger above.
You "free" this boundary condition only for the initial weight analysis that collects the design load for the hanger. In that analysis, your "freed" restraints may move. Since they will not move in other load cases, a load will be generated at the restraint. You could also look at it in terms of moments due to deadweight; they, too, will develop loads on your nozzle.
If you want to learn more about YOUR system response, build a new model with +Y restraints at all hanger design locations, redefine your "freed" restraints as you wish and run a weight analysis. Take a good look at the results. That's what CAESAR II is using to set the design load on your hangers.