diff --git a/VectoCommon/VectoCommon/InputData/DeclarationInputData.cs b/VectoCommon/VectoCommon/InputData/DeclarationInputData.cs
index f5601dd1539b323c4e78e0e50df1ffab1aaada80..be9a99da7911397b77266043c27c6005a79d1842 100644
--- a/VectoCommon/VectoCommon/InputData/DeclarationInputData.cs
+++ b/VectoCommon/VectoCommon/InputData/DeclarationInputData.cs
@@ -869,16 +869,11 @@ namespace TUGraz.VectoCommon.InputData
 		HeatPumpType? HeatPumpTypePassengerCompartment { get; }
 		
 		HeatPumpMode? HeatPumpModePassengerCompartment { get; }
-		
-		ACCompressorType CompressorTypeDriver { get; }//
-		ACCompressorType CompressorTypePassenger { get; }//
 
 		Watt AuxHeaterPower { get; }
 
 		bool DoubleGlazing { get; }
 
-		bool HeatPump { get; } //
-		
 		bool AdjustableAuxiliaryHeater { get; }
 
 		bool SeparateAirDistributionDucts { get; }
diff --git a/VectoCore/VectoCore/InputData/Reader/DataObjectAdapter/DeclarationDataAdapterCompletedBusSpecific.cs b/VectoCore/VectoCore/InputData/Reader/DataObjectAdapter/DeclarationDataAdapterCompletedBusSpecific.cs
index 96c59b6579ec591ab47c7dcca37f983cec1cbf7e..68c53a2b4641e0fdae060fad21e14ea312c09743 100644
--- a/VectoCore/VectoCore/InputData/Reader/DataObjectAdapter/DeclarationDataAdapterCompletedBusSpecific.cs
+++ b/VectoCore/VectoCore/InputData/Reader/DataObjectAdapter/DeclarationDataAdapterCompletedBusSpecific.cs
@@ -183,14 +183,6 @@ namespace TUGraz.VectoCore.InputData.Reader.DataObjectAdapter
 			var hvacConfiguration = completedVehicle.Components.BusAuxiliaries.HVACAux.SystemConfiguration;
 			var busAux = completedVehicle.Components.BusAuxiliaries.HVACAux;
 
-			if (hvacConfiguration.RequiresDriverAC() && (busAux.CompressorTypeDriver == ACCompressorType.None || busAux.CompressorTypeDriver == ACCompressorType.Unknown)) {
-				throw new VectoException("HVAC System Configuration {0} requires DriverAC Technology", hvacConfiguration);
-			}
-
-			if (hvacConfiguration.RequiresPassengerAC() && (busAux.CompressorTypePassenger == ACCompressorType.None || busAux.CompressorTypePassenger == ACCompressorType.Unknown)) {
-				throw new VectoException("HVAC System Configuration {0} requires PassengerAC Technology", hvacConfiguration);
-			}
-
 			if (mission.BusParameter.SeparateAirDistributionDuctsHVACCfg.Contains(hvacConfiguration) &&
 				!completedVehicle.Components.BusAuxiliaries.HVACAux.SeparateAirDistributionDucts) {
 				throw new VectoException("Input parameter 'separate air distribution ducts' has to be set to 'true' for vehicle group '{0}' and HVAC configuration '{1}'",
@@ -232,13 +224,7 @@ namespace TUGraz.VectoCore.InputData.Reader.DataObjectAdapter
 			ssmInputs.VentilationRateHeating = DeclarationData.BusAuxiliaries.VentilationRate(hvacConfiguration, true);
 
 			ssmInputs.HVACMaxCoolingPower = coolingPower.Item1 + coolingPower.Item2;
-			ssmInputs.HVACCompressorType = busAux.CompressorTypePassenger; // use passenger compartment
-			ssmInputs.HVACTechnology = string.Format(
-				"{0} ({1})", busAux.SystemConfiguration.GetName(),
-				string.Join(", ", new[] { busAux.CompressorTypePassenger.GetName(), busAux.CompressorTypeDriver.GetName() })); ;
-			ssmInputs.COP = DeclarationData.BusAuxiliaries.CalculateCOP(
-				coolingPower.Item1, busAux.CompressorTypeDriver, coolingPower.Item2, busAux.CompressorTypePassenger,
-				floorType);
+
 
 			return ssmInputs;
 		}
@@ -257,11 +243,6 @@ namespace TUGraz.VectoCore.InputData.Reader.DataObjectAdapter
 				{
 					onVehicle.Add(item);
 				}
-				if ("Heat pump systems".Equals(item.BenefitName, StringComparison.InvariantCultureIgnoreCase) &&
-					(completedBuxAux?.HVACAux.HeatPump ?? false))
-				{
-					onVehicle.Add(item);
-				}
 				if ("Adjustable auxiliary heater".Equals(item.BenefitName, StringComparison.InvariantCultureIgnoreCase) &&
 					(completedBuxAux?.HVACAux.AdjustableAuxiliaryHeater ?? false))
 				{
diff --git a/VectoCore/VectoCoreTest/XML/XMLCompleteBusReaderTest.cs b/VectoCore/VectoCoreTest/XML/XMLCompleteBusReaderTest.cs
index a01ff46e64cfcadedc0f179614076d6023c1e39c..2e76958784900fd015b92d5ca8bb209789f2d68f 100644
--- a/VectoCore/VectoCoreTest/XML/XMLCompleteBusReaderTest.cs
+++ b/VectoCore/VectoCoreTest/XML/XMLCompleteBusReaderTest.cs
@@ -103,11 +103,8 @@ namespace TUGraz.VectoCore.Tests.XML
 			var havacAux = components.BusAuxiliaries.HVACAux;
 			Assert.IsNotNull(havacAux);
 			Assert.AreEqual(BusHVACSystemConfiguration.Configuration7, havacAux.SystemConfiguration);
-			Assert.AreEqual(ACCompressorType.TwoStage, havacAux.CompressorTypeDriver);
-			Assert.AreEqual(ACCompressorType.FourStage, havacAux.CompressorTypePassenger);
 			Assert.AreEqual(0.SI<Watt>(), havacAux.AuxHeaterPower);
 			Assert.IsTrue(havacAux.DoubleGlazing);
-			Assert.IsFalse(havacAux.HeatPump);
 			Assert.IsTrue(havacAux.AdjustableAuxiliaryHeater);
 			Assert.IsTrue(havacAux.SeparateAirDistributionDucts);
 		}