Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
The top line of text in your screenshot above the chilled water SVG diagram says:
ERROR - COULD NOT COMPLETE DRAWING! Examine ERR file for possible explanation. Last error message is: "Error: No node connection found after the following object: FL2_NORTHROOM"
This means that in the EnergyPlus input file ending in IDF, the lines below the object named FL2_NORTHROOM (likely a Zone object) do not have node connections defined.
Since the chilled water diagram is rendering correctly in the SVG file, the node connections to air systems and equipment are likely not defined correctly. For example, COOLING COIL 1 has a pair of inlet/outlet nodes for the chilled water loop AND another pair of inlet/outlet nodes for the air loop (central air handler, e.g.) or equipment (zone fan coil unit, e.g.).
For more information, the SVG file is created by the HVAC-Diagram auxiliary program from the BND file (branch and node connections). You could also review the BND file to see where node connections are incorrect.
| | 2 | No.2 Revision |
The top line of text in your screenshot above the chilled water SVG diagram says:
ERROR - COULD NOT COMPLETE DRAWING! Examine ERR file for possible explanation. Last error message is: "Error: No node connection found after the following object: FL2_NORTHROOM"
This means that in the EnergyPlus input file ending in IDF, the lines below the object named FL2_NORTHROOM (likely a Zone object) do not have node connections defined.
Since the chilled water diagram is rendering correctly in the SVG file, the node connections to air systems and equipment are likely not defined correctly. For example, COOLING COIL 1 has a pair of inlet/outlet nodes for the chilled water loop AND another pair of inlet/outlet nodes for the air loop (central air handler, e.g.) or equipment (zone fan coil unit, e.g.).
For more information, the SVG file is created by the HVAC-Diagram auxiliary program from the BND file (branch and node connections). You could also review the BND file to see where node connections are incorrect.
Just because your model completed the simulation doesn't mean that the model is defined correctly. You should review the error file ending in ERR created by EnergyPlus to see if there are also related warnings or severe errors for node connections.
