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Why is the Pressure (calculated residual) field value show N/A for a steady state or EPS?
The residual pressure field is available for fire flow analysis, but is shown as N/A for the hydraulic analysis, flushing, water quality analysis etc.
Residual pressure is nothing but the calculated pressure at any node during a fire event.
The Pressure (calculated residual) field is available only with an automated fire flow analysis, to understand how much residual pressure there is at that junction or hydrant. Apart from fire flow analysis Pressure (calculated residual) field will always show as N/A for all other types of calculations.
During automated fire flow, a value of "N/A" will also be shown for nodes that are not part of the fire flow nodes selection set, specified in the fire flow alternative.
http://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/2614.understanding-automated-fire-flow-results
http://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/3008.watergems-v8-automated-fire-flow-faq