I am trying to set "CoilCoolingWaterPanelRadiant.setCoolingControlTemperatureSchedule" but keep getting 'incompatible ScheduleTypeLimits' error OpenstudioSDK 3.10.0

[chenkianwee]

Issue overview

I am trying to write a measure to model ZoneHVACCoolingPanelRadiantConvectiveWater, I am trying to use an existing ScheduleRuleset to set the CoilCoolingWaterPanelRadiant.setCoolingControlTemperatureSchedule. However I keep getting an error message saying I cannot to do it.

Current Behavior

if you run the minimal script in the Steps to Reproduce you will get this error:

[openstudio.model.ModelObject] <0> For Object of type 'OS:Coil:Cooling:Water:Panel:Radiant' and named 'Clg Pnl Coil' cannot set Schedule Cooling Control Temperature=Medium Office Cooling Setpoint Schedule because it has an incompatible ScheduleTypeLimits

The ScheduleTypeLimits is as follows, which is what is required based on the energyplus input/output documentation

OS:ScheduleTypeLimits,
  {87944bcd-6f22-4b00-8b23-19ff657177c0}, !- Handle
  Temperature,                            !- Name
  -60,                                    !- Lower Limit Value
  200,                                    !- Upper Limit Value
  CONTINUOUS,                             !- Numeric Type
  Temperature;                            !- Unit Type

However, I am able to successfully set the schedule using the openstudioapplication GUI as shown here, how is the GUI successfully assigning the schedule with no error while the SDK is getting the error?

Expected Behavior

It should successfully assign the schedule to the CoilCoolingWaterPanelRadiant

Steps to Reproduce

This script will produce the error message in the Current Behavior section.

import openstudio

osmod = openstudio.model.exampleModel()
sch_rule = osmod.getScheduleRulesetByName('Medium Office Cooling Setpoint Schedule').get()
print(sch_rule)
print(sch_rule.scheduleTypeLimits().get())

clg_pnl = openstudio.model.ZoneHVACCoolingPanelRadiantConvectiveWater(osmod)
clg_pnl.setName("Clg Pnl")

hvaccomp = clg_pnl.coolingCoil()
clg_pnl_coil_optional = hvaccomp.to_CoilCoolingWaterPanelRadiant()
if clg_pnl_coil_optional.is_initialized():
    clg_pnl_coil = clg_pnl_coil_optional.get()
    clg_pnl_coil.setName("Clg Pnl Coil")
    clg_pnl_coil.setControlType('OperativeTemperature')
    isset = clg_pnl_coil.setCoolingControlTemperatureSchedule(sch_rule)
    print(isset)

Possible Solution

Details

Environment

• Platform: Ubuntu 24
• Version of OpenstidioApplicaiton: 1.10.0

Context

I am trying to write a measure for users to model radiant cooling panels. It will allow them to model radiant cooling panels for each conditioned zone and set the CoolingControlTemperatureSchedule at the same time using the measure.

[macumber]

If you look at the definition of CoilCoolingWaterPanelRadiant_Impl::setCoolingControlTemperatureSchedule:
https://github.com/NatLabRockies/OpenStudio/blob/develop/src/model/CoilCoolingWaterPanelRadiant.cpp#L253

You will see it is using ModelObject_Impl::setSchedule:
https://github.com/NatLabRockies/OpenStudio/blob/develop/src/model/ModelObject_Impl.hpp#L203

The definition of this method uses some complicated logic to validate the schedule type:
https://github.com/NatLabRockies/OpenStudio/blob/develop/src/model/ModelObject.cpp#L631

This logic can be difficult to debug and is generally not actually useful. Instead, try just setting the field (index 14) to point to the schedule's handle:
isset = clg_pnl_coil.setPointer(14, sch_rule.handle())

That should give you a workaround. The actual issue is in the OpenStudio SDK, you can report the issue at https://github.com/NatLabRockies/OpenStudio/issues if you want a true fix.

[chenkianwee]

Thanks, the workaround will work for now I will report it to openstudiosdk.