<?xml version="1.0"?>
<PropertySetDef xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" ifdguid="be10cb80d1d011e1800000215ad4efdf" templatetype="PSET_PERFORMANCEDRIVEN" xsi:noNamespaceSchemaLocation="http://buildingSMART-tech.org/xml/psd/PSD_IFC4.xsd">
  <IfcVersion version="IFC4" />
  <Name>Pset_DamperPHistory</Name>
  <Definition>Damper performance history attributes.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcDamper</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcDamper</ApplicableTypeValue>
  <PropertyDefs>
    <PropertyDef ifdguid="c36e1600d1d011e1800000215ad4efdf">
      <Name>AirFlowRate</Name>
      <Definition>Air flow rate.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Air Flow Rate</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="c7019d00d1d011e1800000215ad4efdf">
      <Name>Leakage</Name>
      <Definition>Air leakage rate.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Leakage</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="c9fc8d80d1d011e1800000215ad4efdf">
      <Name>PressureDrop</Name>
      <Definition>Pressure drop.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Pressure Drop</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="cc5ee780d1d011e1800000215ad4efdf">
      <Name>BladePositionAngle</Name>
      <Definition>Blade position angle; angle between the blade and flow direction ( 0 - 90).</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Blade Position Angle</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="cff26e80d1d011e1800000215ad4efdf">
      <Name>DamperPosition</Name>
      <Definition>Damper position (0-1); damper position ( 0=closed=90deg position angle, 1=open=0deg position angle.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Damper Position</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="d2ed5f00d1d011e1800000215ad4efdf">
      <Name>PressureLossCoefficient</Name>
      <Definition>Pressure loss coefficient.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Pressure Loss Coefficient</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
  </PropertyDefs>
  <PsetDefinitionAliases>
    <PsetDefinitionAlias lang="en" />
  </PsetDefinitionAliases>
</PropertySetDef>