Unused Non-Parent Objects
I'm casting about, trying to figure out why:
- zones are not meeting their setpoint
- there is apparently no recognized value for the zone node's "System Node Setpoint Temperature" for output:variable (it displays as a large negative value), despite using a normal combination of SetpointManager:SingleZone:Reheat and ZoneControl:Thermostat for my single zone air loops
As I look for clues, I see in the .SVG file that all of the SetpointManager:SingleZone:Reheat objects are identified as "Unused Non-Parent Objects". I'm fairly sure that may have displayed in the past, but I never had good reason to dig into it before. A search of the IO Ref and Engineering Ref does not result in anything...
So, may I please have some ideas about:
- what may cause the zone node to have no associated setpoint value?
- whether an "unused non-parent object" is a problem?
p.s., In case you're interested and able to take a look, the IDF is here
Regarding the second question I ran in to the same problem with humidity set point manager, so I used “DOASDXCOIL_wADPBFMethod.idf” example file that comes with EnergyPlus installation. The simulation showed 0 Warnings 0 Severe Errors, but the SVG file showed some Unused Non-Parent Objects. I added “Output:Diagnostics, DisplayUnusedObjects” to the outputs, and got the same results. What I concluded from that and from looking at the xml construction of the SVG file, is the “Unused Non-Parent Objects” refers to objects in the model, but are not shown on the SVG diagram