Correction of negative cooling reporting

Bug that was resulting in cooling being negative in output.  The
cooling is not negative—it was simply picking up the fact that the
cooling panel has a heat removal impact on zones.  However, all the
output variables are clearly cooling so these should not show up as
negative.  This commit fixes that and adds a unit test.

src/EnergyPlus/ChilledCeilingPanelSimple.cc

@@ -1630,6 +1630,16 @@ namespace CoolingPanelSimple {
 
 		using DataHVACGlobals::TimeStepSys;
 
+		// All of the power numbers are negative for cooling.  This is because they will have a negative
+		// or cooling impact on the surfaces/zones.  However, the output variables are noted as cooling.
+		// So, their sign should be positive if actually cooling and we need to reverse the sign here.
+		// This should not have an impact on any of the internal variables or the heat balances because
+		// those use other variables.
+		this->TotPower  = -this->TotPower;
+		this->Power     = -this->Power;
+		this->ConvPower = -this->ConvPower;
+		this->RadPower  = -this->RadPower;
+
 		this->TotEnergy  = this->TotPower * TimeStepSys * SecInHour;
 		this->Energy     = this->Power * TimeStepSys * SecInHour;
 		this->ConvEnergy = this->ConvPower * TimeStepSys * SecInHour;

tst/EnergyPlus/unit/ChilledCeilingPanelSimple.unit.cc

@@ -161,4 +161,27 @@ namespace EnergyPlus {
 		EXPECT_EQ( SizeCoolingPanelUASuccess, false );
 
 	}
+
+	TEST_F( EnergyPlusFixture, ReportCoolingPanel )
+	{
+		int CoolingPanelNum; // Cooling panel number
+
+		CoolingPanelNum = 1;
+
+		CoolingPanelSimple::CoolingPanel.allocate( CoolingPanelNum );
+
+		// Test the new output for running the values through the Report subroutine
+		CoolingPanel( CoolingPanelNum ).TotPower  = -10.0;
+		CoolingPanel( CoolingPanelNum ).Power = -9.0;
+		CoolingPanel( CoolingPanelNum ).ConvPower = -4.0;
+		CoolingPanel( CoolingPanelNum ).RadPower  = -5.0;
+		CoolingPanel( CoolingPanelNum ).ReportCoolingPanel( );
+		EXPECT_NEAR( CoolingPanel( CoolingPanelNum ).TotPower, 10.0, 1.0 );
+		EXPECT_NEAR( CoolingPanel( CoolingPanelNum ).Power, 9.0, 1.0 );
+		EXPECT_NEAR( CoolingPanel( CoolingPanelNum ).ConvPower, 4.0, 1.0 );
+		EXPECT_NEAR( CoolingPanel( CoolingPanelNum ).RadPower, 5.0, 1.0 );
+
+	}
+
 }
+