fix #11513

Author: mitchute

src/EnergyPlus/FluidProperties.cc

@@ -4594,7 +4594,7 @@ namespace Fluid {
         if (!state.dataGlobal->WarmupFlag && error != GlycolError::Invalid) {
             df->glycolErrorLimits[(int)error] = ++this->errors[(int)error].count;
 
-            if (error == GlycolError::ViscosityHigh) {
+            if (error == GlycolError::ViscosityLow) {
                 if (df->glycolErrorLimits[(int)error] <= df->GlycolErrorLimitTest) {
                     ShowWarningMessage(
                         state, EnergyPlus::format("{}: Temperature is out of range (too low) for fluid [{}] viscosity **", routineName, this->Name));

tst/EnergyPlus/unit/FluidProperties.unit.cc

@@ -116,6 +116,28 @@ TEST_F(EnergyPlusFixture, FluidProperties_GetSpecificHeatGlycol)
     EXPECT_NEAR(4137, fluid->getSpecificHeat(*state, 125.0, "UnitTest"), 0.01);
 }
 
+TEST_F(EnergyPlusFixture, FluidProperties_GetViscosityGlycolOutOfRangeWarnings)
+{
+    std::string const idf_objects = delimited_string({"FluidProperties:GlycolConcentration,",
+                                                      "  GLHXFluid,       !- Name",
+                                                      "  PropyleneGlycol, !- Glycol Type",
+                                                      "  ,                !- User Defined Glycol Name",
+                                                      "  0.3;             !- Glycol Concentration",
+                                                      " "});
+
+    ASSERT_TRUE(process_idf(idf_objects));
+    EXPECT_FALSE(has_err_output());
+
+    state->init_state(*state);
+    auto *fluid = Fluid::GetGlycol(*state, "GLHXFLUID");
+
+    fluid->getViscosity(*state, -100.0, "UnitTest");
+    EXPECT_TRUE(compare_err_stream_substring("Temperature is out of range (too low) for fluid [GLHXFLUID] viscosity **", true));
+
+    fluid->getViscosity(*state, 200.0, "UnitTest");
+    EXPECT_TRUE(compare_err_stream_substring("Temperature is out of range (too high) for fluid [GLHXFLUID] viscosity **", true));
+}
+
 TEST_F(EnergyPlusFixture, FluidProperties_InterpValuesForGlycolConc)
 {
     // Test fluid property interpolations with only one concentration