Unmet Hours

I ran your V9.6 file in the lastest EnergyPlus code and found a bug in the program. If there are multiple AirLoopHVAC:DedicatedOutdoorAirSystem objects then only the first objects find the correct outdoor air conditions used for sizing. I posted a new issue at https://github.com/NREL/EnergyPlus/issues/9325. This model uses the SizingPeriod:DesignDay conditions to find the outdoor weather.

I ran your V9.6 file in the lastest EnergyPlus code and found a bug in the program. If there are multiple AirLoopHVAC:DedicatedOutdoorAirSystem objects then only the first ~~objects find~~ object finds the correct outdoor air conditions used for sizing. I posted a new issue at https://github.com/NREL/EnergyPlus/issues/9325. This model uses the SizingPeriod:DesignDay conditions to find the outdoor weather.

I ran your V9.6 file in the lastest EnergyPlus code and found a bug in the program. If there are multiple AirLoopHVAC:DedicatedOutdoorAirSystem objects then only the first object finds the correct outdoor air conditions used for sizing. I posted a new issue at https://github.com/NREL/EnergyPlus/issues/9325. This model uses the SizingPeriod:DesignDay conditions to find the outdoor weather.

In the fan model the Electric Power Minimum Flow Rate Fraction = 0.2. At flow fractions below 0.2 the fan power will remain constant. At 0 flow the power will go to 0.

Fan:SystemModel,
  PAU_Tower12_Office_1 Supply Fan,  !- Name
  LEED_V4_OFFICE_VENTILATION,  !- Availability Schedule Name
  PAU_Tower12_Office_1 Cooling Coil Outlet,  !- Air Inlet Node Name
  PAU_Tower12_Office_1 Supply Fan Outlet,  !- Air Outlet Node Name
  autosize,                !- Design Maximum Air Flow Rate {m3/s}
  Continuous,              !- Speed Control Method
  0.2,                     !- Electric Power Minimum Flow Rate Fraction
  1200,                    !- Design Pressure Rise {Pa}
  0.9,                     !- Motor Efficiency
  1,                       !- Motor In Air Stream Fraction

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