HVAC Sizing Simulation should be disabled if Plant Sizing is not active

[mjwitte]

Issue overview

If "Do HVAC Sizing Simulation for Sizing Periods=Yes" when "Do Plant Sizing Calculation=No", there is a subscript error here in ResizePlantLoopLevelSizes, because PlantSizNum=0.

EnergyPlus/src/EnergyPlus/Plant/PlantManager.cc

Line 3412 in ec7398a

state.dataSize->PlantSizData(PlantSizNum).DesVolFlowRate = 0.0; // init for summation

Should check this up in GetProjectData and either fatal out or warn and reset HVAC Sizing Simulation to No.

Details

Some additional details for this issue (if relevant):

• Version of EnergyPlus 25.1.0-b46af9c5e3

Checklist

Add to this list or remove from it as applicable. This is a simple templated set of guidelines.

• Defect file example file AbsorptionChiller.idf with "Do HVAC Sizing Simulation = Yes".
• Ticket added to EnergyPlus Defect Complexity (Github Project)
• Pull request created (the pull request will have additional tasks related to reviewing changes that fix this defect)