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I just added an AirLoopHVAC with an Outdoor Air System and an AirLoopHVAC:UnitarySystem .

The AirLoopHVAC:UnitarySystem itself contains a Coil:Cooling:WaterToAirHeatPump:EquationFit, aCoil:Heating:WaterToAirHeatPump:EquationFit and a supplemental heating Coil:Heating:Water as well as a Fan:ConstantVolume, and it is set to Control Type Load with one of the two zones it serves (a lobby and a vestibule) as a control zone.

My simulation time completely bloated. It went from less than 10 minutes to 1h40 minutes (and 15 minutes later it's still writing the SQL file...), and I'm getting convergence issues during the warmup. I didn't change anything else.

Is there anything I can do to avoid having such a long simulation time? Any workarounds I could use such as wrapping a single coil in a dedicted unitary system set to Setpoint or something? This is making my model completely useless.

I just added an AirLoopHVAC with an Outdoor Air System and an AirLoopHVAC:UnitarySystem .

The AirLoopHVAC:UnitarySystem itself contains a Coil:Cooling:WaterToAirHeatPump:EquationFit, aCoil:Heating:WaterToAirHeatPump:EquationFit and a supplemental heating Coil:Heating:Water as well as a Fan:ConstantVolume, and it is set to Control Type Load with one of the two zones it serves (a lobby and a vestibule) as a control zone.

My simulation time completely bloated. It went from less than 10 minutes 08min50 to 1h40 minutes 1h35min (and 15 minutes later it's still writing the SQL file...), and I'm getting convergence issues during the warmup. I didn't change anything else.

Is there anything I can do to avoid having such a long simulation time? time?

Any workarounds I could use such as wrapping a single coil in a dedicted unitary system set to Setpoint or something? This is making my model completely useless.

I just added an AirLoopHVAC with an Outdoor Air System and an AirLoopHVAC:UnitarySystem .

The AirLoopHVAC:UnitarySystem itself contains a Coil:Cooling:WaterToAirHeatPump:EquationFit, aCoil:Heating:WaterToAirHeatPump:EquationFit and a supplemental heating Coil:Heating:Water as well as a Fan:ConstantVolume, and it is set to Control Type Load with one of the two zones it serves (a lobby and a vestibule) as a control zone.

My simulation time completely bloated. It went 08min50 to 1h35min (and 15 minutes later it's still writing the SQL file...), and I'm getting convergence issues during the warmup. I didn't change anything else.

Is there anything I can do to avoid having such a long simulation time?

Any workarounds I could use such as wrapping a single coil in a dedicted unitary system set to Setpoint or something? This is making my model completely useless.

I just added an AirLoopHVAC with an Outdoor Air System and an AirLoopHVAC:UnitarySystem .

The AirLoopHVAC:UnitarySystem itself contains a Coil:Cooling:WaterToAirHeatPump:EquationFit, aCoil:Heating:WaterToAirHeatPump:EquationFit and a supplemental heating Coil:Heating:Water as well as a Fan:ConstantVolumeFan:VariableVolume, and it is set to Control Type Load with one of the two zones it serves (a lobby and a vestibule) as a control zone.

My simulation time completely bloated. It went 08min50 to 1h35min (and 15 minutes later it's still writing the SQL file...), and I'm getting convergence issues during the warmup. I didn't change anything else.

Is there anything I can do to avoid having such a long simulation time?

Any workarounds I could use such as wrapping a single coil in a dedicted unitary system set to Setpoint or something? This is making my model completely useless.