Merge pull request #8401 from NREL/6050_ReturnFan_MinFlowFrac

Fix #6050 - Return Fan:VariableVolume Fan Power Minimum Flow Fraction should not impose air loop flow
NREL · Dec 11, 2020 · 1cdc5c5 · 1cdc5c5 · nrel-bot-3 · Dec 11, 2020
2 parents edb5081 + f99ad62
commit 1cdc5c5
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diff --git a/src/EnergyPlus/Fans.cc b/src/EnergyPlus/Fans.cc
@@ -1105,7 +1105,10 @@ namespace Fans {
 
             // Init the Node Control variables
             Node(OutNode).MassFlowRateMax = Fan(FanNum).MaxAirMassFlowRate;
-            Node(OutNode).MassFlowRateMin = Fan(FanNum).MinAirMassFlowRate;
+            // According to the IO Ref guide:
+            // "Note that this field is only used to calculate the fan power.
+            // This field does not enforce the system air flow rate during simulation"
+            // Node(OutNode).MassFlowRateMin = Fan(FanNum).MinAirMassFlowRate;
 
             // Initialize all report variables to a known state at beginning of simulation
             Fan(FanNum).FanPower = 0.0;