Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I was able to get the supplemental water coil to turn on but only by changing the software. I am not sure what is happening here. The fact that there is only 1 HW coil on the demand side of the loop should not be an issue. The plant is simply setting the water flow rate to the coil to 0 so the coil does not turn on. If I trick the software the coil does turn on. So this will take more investigation to figure out what is wrong. i.e., something in the input file (I don't see anything) or something in the software. I see that there was a fix for supplemental water coils used in AirLoopHVAC:UnitarySystem for 24.1 here so maybe you could try using that parent object?
