Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
EnergyPlus has reported a warning, not an error. The warning may not caused directly by your control strategy.
The warning is that alerting you that the chiller performance is being evaluated at a part load condition outside the range described by the performance curve you have specified.
The warning message posted does not, alone, prove the chillers are operating at part loads less than 0.2.
If indeed they are and you want to deactivate the chillers at a given part load ratio, you could use a chiller staging scheme - implemented via a PlantEquipmentOperationCoolingLoad.
