I have simple water loop as follows:
It contains the tank of an air-to-water heatpump water heater attached to a zone, and a hot water user.
When running the osm model, the simulation crashes with the following err messages:
Program Version,EnergyPlus, Version 8.9.0-eba93e8e1b, YMD=2018.06.20 10:13,
** Severe ** <root>[PlantEquipmentOperationSchemes][HotWaterLoop Operation Schemes] - Missing required property 'control_scheme_1_name'.
** Severe ** <root>[PlantEquipmentOperationSchemes][HotWaterLoop Operation Schemes] - Missing required property 'control_scheme_1_object_type'.
** Severe ** <root>[PlantEquipmentOperationSchemes][HotWaterLoop Operation Schemes] - Missing required property 'control_scheme_1_schedule_name'.
** Fatal ** Errors occurred on processing input file. Preceding condition(s) cause termination.
...Summary of Errors that led to program termination:
..... Reference severe error count=3
..... Last severe error=<root>[PlantEquipmentOperationSchemes][HotWaterLoop Operation Schemes] - Missing required property 'control_scheme_1_schedule_name'.
************* Warning: Node connection errors not checked - most system input has not been read (see previous warning).
************* Fatal error -- final processing. Program exited before simulations began. See previous error messages.
************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
************* EnergyPlus Terminated--Fatal Error Detected. 0 Warning; 3 Severe Errors; Elapsed Time=00hr 00min 0.17sec
Apparently, OpenStudio has generated an incomplete IDF file. Did I miss anything necessary to specify ?