The following error message is generated when computing a fire flow analysis:
"Fire flow reference to a deleted selection set."
This can occur when a selection set was once used for the "Pipe Set", "Fire Flow Nodes", or "Auxiliary Output Selection Set" section of the Fire Flow alternative. If the referenced selection set is removed, these fields will be blank.
If the selection set is deleted, another selection must be made for the the Pipe Set and/or Fire Flow Nodes selection. "All Pipes" will be available for the Pipe Set, or a different selection set can be chosen. For the Fire Flow Nodes section, "All Fire Flow Nodes" or another selection set should be chosen.
Understanding Automated Fire Flow Results