change OnOffFanPartLoadFraction back to use PLF

NREL · Aug 12, 2024 · de9baf3 · de9baf3 · nrel-bot-3 · Aug 12, 2024
1 parent 261699a
commit de9baf3
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Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/src/EnergyPlus/DXCoils.cc b/src/EnergyPlus/DXCoils.cc
@@ -16880,7 +16880,7 @@ void CalcVRFCoolingCoil_FluidTCtrl(EnergyPlusData &state,
         }
 
         // If cycling fan, send coil part-load fraction to on/off fan via HVACDataGlobals
-        if (fanOp == HVAC::FanOp::Cycling) state.dataHVACGlobal->OnOffFanPartLoadFraction = thisDXCoil.CoolingCoilRuntimeFraction;
+        if (fanOp == HVAC::FanOp::Cycling) state.dataHVACGlobal->OnOffFanPartLoadFraction = PLF;
 
         // Check for saturation error and modify temperature at constant enthalpy
         if (OutletAirTemp < PsyTsatFnHPb(state, OutletAirEnthalpy, OutdoorPressure)) {

diff --git a/src/EnergyPlus/HVACVariableRefrigerantFlow.cc b/src/EnergyPlus/HVACVariableRefrigerantFlow.cc
@@ -12828,7 +12828,16 @@ void VRFTerminalUnitEquipment::CalcVRF_FluidTCtrl(EnergyPlusData &state,
         auto *fan = state.dataFans->fans(state.dataHVACVarRefFlow->VRFTU(VRFTUNum).FanIndex);
         if (state.dataHVACVarRefFlow->VRFTU(VRFTUNum).fanType == HVAC::FanType::SystemModel) {
             if (OnOffAirFlowRatio > 0.0) {
-                fan->simulate(state, FirstHVACIteration, _, _, _, fan->inletAirMassFlowRate, OnOffFanPartLoadFraction, 0, 0, _);
+                fan->simulate(state,
+                              FirstHVACIteration,
+                              _,
+                              _,
+                              _,
+                              fan->inletAirMassFlowRate,
+                              state.dataDXCoils->DXCoil(this->CoolCoilIndex).CoolingCoilRuntimeFraction,
+                              0,
+                              0,
+                              _);
             } else {
                 fan->simulate(state, FirstHVACIteration, _, _, PartLoadRatio);
             }