\[BS-7\] HVAC Performance Validation

**Object Type Definition Tables**

This document forms the object type definition part of the draft 4
document of IAI R3.0 Domain project *\[BS‑7\] HVAC Performance
Validation*. Compared to the earlier review version of the draft 4
document, in this new version of the document the latest IFC 2x model
and the review comments, mainly by Phil Haves, have been taken into
account. Regarding IFC 2x some property sets and attributes were already
included into IFC 2x, so they have been removed from this version. Also
in IFC 2x some property sets of IFC 2.0 were defined as classes. In this
document the corresponding property sets have been changed to classes.
Finally, all review comments have been reviewed by the project team and
taken into account if possible in the data definitions. In reviewing the
comments and IFC 2x the project manager of IFC R3.0 has also been
consulted.

An important question that has been left unsolved in this project
concerns standard references. It\'s obvious that standard references are
needed. Some kind of general method is needed for referring (HVAC)
standards, because different standards are used in different parts of
the world and standards are not permanent. So it is not necessary long
lasting to include current standard names in attribute definitions. Also
different attributes of a property set or class may have different
standards, so one standard for the whole property set or class is not
enough. In worst case it had to be defined the corresponding standard
for each attribute. This issue is more general than concerning only HVAC
domain and should thus be solved on a lower level of IFC model hierarchy
than domain project level.

1\. ADDITIONS TO EXISTING CLASSES [2](#additions-to-existing-classes)

1.1. IfcValve [2](#ifcvalve)

1.2. IfcAirFilter [2](#ifcairfilter)

1.3. IfcCoil [2](#ifccoil)

1.4. IfcFluidMovingDevice [3](#ifcfluidmovingdevice)

1.5. IfcBoiler [3](#ifcboiler)

2\. ADDITIONS TO EXISTING PROPERTY SETS
[3](#additions-to-existing-property-sets)

2.1. Pset_ControlDamper [3](#pset_controldamper)

2.2. Pset_ElectricActuator [4](#pset_electricactuator)

2.3. Pset_AirHandler [4](#pset_airhandler)

3\. ADDITIONS TO EXISTING DATA TYPES
[4](#additions-to-existing-data-types)

3.1. IfcControllerTypeEnum [4](#ifccontrollertypeenum)

3.2. IfcActuatorTypeEnum [5](#ifcactuatortypeenum)

4\. NEW CLASSES [5](#new-classes)

4.1. IfcCooledBeam [5](#ifccooledbeam)

4.2. IfcHumidifier [6](#ifchumidifier)

4.3. IfcDuctedSilencer [6](#ifcductedsilencer)

4.4. IfcHeatRecoveryUnit [7](#ifcheatrecoveryunit)

4.5. IfcRadiator [8](#ifcradiator)

5\. NEW PROPERTY SETS [8](#new-property-sets)

5.1. Pset_CooledBeamDesignCriteria [8](#pset_cooledbeamdesigncriteria)

5.2. Pset_AirHandlerDesignCriteria [9](#pset_airhandlerdesigncriteria)

5.3. Pset_ValveCharacteristics [10](#pset_valvecharacteristics)

5.4. Pset_DamperCharacteristics [10](#pset_dampercharacteristics)

5.5. Pset_FluidMovingDeviceCharacteristics
[10](#pset_fluidmovingdevicecharacteristics)

5.6. Pset_ControlDamperAdjustments [11](#pset_controldamperadjustments)

5.7. Pset_ValveAdjustments [11](#pset_valveadjustments)

5.8. Pset_RadiatorSystemDesigCriteria
[11](#pset_radiatorsystemdesigcriteria)

5.9. Pset_RadiatorDesignCriteria [12](#pset_radiatordesigncriteria)

5.10. Pset_ThermostaticActuator [12](#pset_thermostaticactuator)

5.11. Pset_HeatingCurve [12](#pset_heatingcurve)

5.12. Pset_BoilerAdjustments [12](#pset_boileradjustments)

5.13. Pset_RadiatorAdjustments [13](#pset_radiatoradjustments)

5.14. Pset_HeatingCurveAdjustments [13](#pset_heatingcurveadjustments)

5.15. Pset_MeteorologicalData [13](#pset_meteorologicaldata)

6\. NEW TYPE DEFINITIONS [14](#new-type-definitions)

7\. NEW DATA TYPES [15](#new-data-types)

7.1. IfcSoundMeasure [15](#ifcsoundmeasure)

7.2. IfcHeatCapacityMeasure [15](#ifcheatcapacitymeasure)

7.3. IfcPowerPerVolumetricFlowRateMeasure
[15](#ifcpowerpervolumetricflowratemeasure)

7.4. IfcTorqueMeasure [16](#ifctorquemeasure)

# ADDITIONS TO EXISTING CLASSES

## IfcValve

<table>
<colgroup>
<col style="width: 3%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 1%" />
<col style="width: 2%" />
<col style="width: 2%" />
<col style="width: 15%" />
<col style="width: 30%" />
<col style="width: 15%" />
<col style="width: 7%" />
<col style="width: 7%" />
<col style="width: 7%" />
</colgroup>
<tbody>
<tr class="odd">
<td></td>
<td colspan="8"><strong>Class Name</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><em><strong>Interface name</strong></em></td>
<td></td>
<td colspan="2"><em>{{ "Ref" = relationship }}</em></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td><em>1</em></td>
<td><em>2</em></td>
<td><em>3</em></td>
<td><em>4</em></td>
<td><em>5</em></td>
<td><em>6</em></td>
<td><em>7</em></td>
<td></td>
<td><em><strong>Attribute / Relation name</strong></em></td>
<td><em><strong>Definition</strong></em></td>
<td><p><em><strong>Data Type or</strong></em></p>
<p><em><strong>Related Object Type</strong></em></p></td>
<td><em><strong>Min</strong></em></td>
<td><em><strong>Max</strong></em></td>
<td><em><strong>Default</strong></em></td>
</tr>
<tr class="even">
<td></td>
<td colspan="7"><strong>IfcValve</strong></td>
<td></td>
<td></td>
<td>This class defines elements of a valve, which typically is used in
an HVAC piping distribution system to control or modulate the flow of
the fluid.</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td colspan="2"><strong>I_Valve : FlowController</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>FlowCharacteristics</td>
<td>Flow characteristics (under a standard test)</td>
<td>IfcPropertySet (Pset_ValveCharacteristics)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>Rangability</td>
<td>Ratio of fully open flow rate to minimum controllable flow rate, at
constant pressure drop (under a standard test)</td>
<td>IfcSimplePropertyWithUnit (IfcReal)</td>
<td>0</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>Leakage</td>
<td>Ratio of leakage flow rate to fully open flow rate, at constant
pressure drop (under a standard test)</td>
<td>IfcSimpleProperty (IfcNormalisedRatioMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>Adjustments</td>
<td>Reference to the Property Set defining adjustable parameters</td>
<td>IfcComplexProperty (SET [1:4] OF IfcPropertySet
(Pset_ValveAdjustments))</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
</tbody>
</table>

## IfcAirFilter

  ------------------ -- -- -- --------------------- ----------------------- ---------------------------- ----- ----- -----
  **IfcAirFilter**                                  Describes air filter                                             
                                                    product data                                                     

                              DustHoldingCapacity   The amount of dust by   IfcSimplePropertyWithUnit    0     n/a   NIL
                                                    weight retained by a    (IfcMassMeasure)                         
                                                    filter (under a                                                  
                                                    standard test such as                                            
                                                    EN779)                                                           

                              RegeneratedSound      Regenerated sound       IfcPropertySet               n/a   n/a   NIL
                                                    (under a standard       (Pset_SoundPowerLevels)                  
                                                    test). Reference to a                                            
                                                    property set                                                     
                                                    Pset_SoundPowerLevels                                            

                              SoundAttenuation      Sound attenuation       IfcPropertySet               n/a   n/a   NIL
                                                    (under a standard       (Pset_SoundPowerLevels)                  
                                                    test). Reference to a                                            
                                                    property set                                                     
                                                    Pset_SoundPowerLevels                                            

                              Height                Height of flow cross    IfcSimplePropertyWithUnit    0     n/a   NIL
                                                    section                 (IfcPositiveLengthMeasure)               

                              Width                 Width of flow cross     IfcSimplePropertyWithUnit    0     n/a   NIL
                                                    section                 (IfcPositiveLengthMeasure)               
  ------------------ -- -- -- --------------------- ----------------------- ---------------------------- ----- ----- -----

## IfcCoil

  ------------- -- -- -- ------------------------ ----------------------- --------------------------------------- ----- ----- -------
  **IfcCoil**                                     describes coil product                                                      
                                                  data                                                                        

                         EnergySource             Energy source           IfcEnergySourceEnum                     n/a   n/a   NIL

                         Height                   Height of flow cross    IfcSimplePropertyWithUnit               0     n/a   NIL
                                                  section                 (IfcPositiveLengthMeasure)                          

                         Width                    Width of flow cross     IfcSimplePropertyWithUnit               0     n/a   NIL
                                                  section                 (IfcPositiveLengthMeasure)                          

                         Length                   Length of heat transfer IfcSimplePropertyWithUnit               0     n/a   NIL
                                                  surface in direction of (IfcPositiveLengthMeasure)                          
                                                  flow                                                                        

                         EnteringAirTemperature   List of air             IfcComplexProperty (LIST \[1:2\] OF     n/a   n/a   empty
                                                  temperatures of         IfcSimplePropertyWithUnit                           list
                                                  entering conditions;    (IfcThermodynamicTemperatureMeasure))               
                                                  the list consists of                                                        
                                                  dry bulb followed by                                                        
                                                  wet bulb                                                                    

                         LeavingAirTemperature    List of air             IfcComplexProperty (LIST \[1:2\] OF     n/a   n/a   empty
                                                  temperatures of leaving IfcSimplePropertyWithUnit                           list
                                                  conditions; the list    (IfcThermodynamicTemperatureMeasure))               
                                                  consists of dry bulb                                                        
                                                  followed by wet bulb                                                        

                         AirFlowRate              Air flow rate           IfcSimplePropertyWithUnit               0     n/a   NIL
                                                                          (IfcVolumetricFlowrateMeasure)                      

                         AirPressureDrop          Air pressure drop at    IfcSimplePropertyWithUnit               0     n/a   NIL
                                                  the related air flow    (IfcPressureMeasure)                                
                                                  rate (under a standard                                                      
                                                  test)                                                                       

                         RegeneratedSound         Regenerated sound       IfcPropertySet (Pset_SoundPowerLevels)  n/a   n/a   NIL
                                                  (under a standard                                                           
                                                  test). Reference to a                                                       
                                                  property set                                                                
                                                  Pset_SoundPowerLevels                                                       

                         SoundAttenuation         Sound attenuation       IfcPropertySet (Pset_SoundPowerLevels)  n/a   n/a   NIL
                                                  (under a standard                                                           
                                                  test). Reference to a                                                       
                                                  property set                                                                
                                                  Pset_SoundPowerLevels                                                       

                                                                                                                              
  ------------- -- -- -- ------------------------ ----------------------- --------------------------------------- ----- ----- -------

## IfcFluidMovingDevice

  -------------------------- -- -- -- --------------------- ---------------------- ----------------------------------------- ----- ----- -----
  **IfcFluidMovingDevice**                                  Describes fluid mover                                                        
                                                            product data. A Fluid                                                        
                                                            mover is equipment                                                           
                                                            that performs                                                                
                                                            mechanical work on a                                                         
                                                            fluid (e.g., pump,                                                           
                                                            fan)                                                                         

                                      FlowCharacteristics   Flow characteristics   IfcPropertySet                            n/a   n/a   NIL
                                                            (under a standard      (Pset_FluidMovingDeviceCharacteristics)               
                                                            test)                                                                        

                                                                                                                                         
  -------------------------- -- -- -- --------------------- ---------------------- ----------------------------------------- ----- ----- -----

## IfcBoiler

  --------------- -- -- -- --------------------------------- ------------------- -------------------------------------- ----- ----- -----
  **IfcBoiler**                                              describes boiler                                                       
                                                             product data                                                           

                           OperatingModeEnum                 reference to the    IfcEnumeratedProperty (Fix, TwoStep,   n/a   n/a   NIL
                                                             operating mode of   Modulating, Other, NotKnown, Unset)                
                                                             the boiler                                                             

                           StandardThermalOutput             thermal output of   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             boiler under        (IfcPowerMeasure)                                  
                                                             standard test                                                          
                                                             conditions                                                             

                           StandardInletWaterTemperature     inlet water         IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             temperature under   (IfcThermodynamicTemperatureMeasure)               
                                                             standard test                                                          
                                                             conditions                                                             

                           StandardOutletWaterTemperature    outlet water        IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             temperature under   (IfcThermodynamicTemperatureMeasure)               
                                                             standard test                                                          
                                                             conditions.                                                            

                           StandardUpperHeatOutputRange      upper heat output   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             range related to    (IfcPowerMeasure)                                  
                                                             standard test                                                          
                                                             conditions                                                             

                           StandardLowerHeatOutputRange      lower heat output   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             range related to    (IfcPowerMeasure)                                  
                                                             standard test                                                          
                                                             conditions                                                             

                           UpperHeatOutputRange              upper heat output   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             range design 60/80  (IfcPowerMeasure)                                  
                                                             °C                                                                     

                           LowerHeatOutputRange              lower heat output   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             range design 60/80  (IfcPowerMeasure)                                  
                                                             °C                                                                     

                           MaximumFlueGasTemperature         flue gas            IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             temperature at      (IfcThermodynamicTemperatureMeasure)               
                                                             maximum load                                                           

                           Load60PercentFlueGasTemperature   flue gas            IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             temperature at part (IfcThermodynamicTemperatureMeasure)               
                                                             load of 60 %,                                                          
                                                             design 60/80 °C                                                        

                           WaterCapacity                     boiler water        IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                             capacity.           (IfcVolumeMeasure)                                 

                           Lambda                            stoichiometic       IfcSimpleProperty (IfcReal)            n/a   n/a   NIL
                                                             fuel/air ratio                                                         

                           Adjustments                       Reference to the    IfcComplexProperty (SET \[1:4\] OF     n/a   n/a   NIL
                                                             property set        IfcPropertySet                                     
                                                             defining adjustable (Pset_BoilerAdjustments))                          
                                                             parameters                                                             
  --------------- -- -- -- --------------------------------- ------------------- -------------------------------------- ----- ----- -----

# ADDITIONS TO EXISTING PROPERTY SETS

## Pset_ControlDamper

  ------------------------ -- -- --------------- ------------------------ ----------------------- --------------------------------------------- ----- ----- -------
  **Pset_ControlDamper**                                                  describes control                                                                 
                                                                          damper product data                                                               

                                                 FlowCharacteristics      Flow characteristics    IfcPropertySet (Pset_DamperCharacteristics)   n/a   n/a   NIL
                                                                          (under a standard test)                                                           

                                                 Height                   Height of flow cross    IfcSimplePropertyWithUnit                     0     n/a   NIL
                                                                          section                 (IfcPositiveLengthMeasure)                                

                                                 Width                    Width of flow cross     IfcSimplePropertyWithUnit                     0     n/a   NIL
                                                                          section                 (IfcPositiveLengthMeasure)                                

                                                 RegeneratedSound         Regenerated sound       IfcPropertySet (Pset_SoundPowerLevels)        n/a   n/a   NIL
                                                                          (under a standard                                                                 
                                                                          test). Reference to a                                                             
                                                                          property set                                                                      
                                                                          Pset_SoundPowerLevels                                                             

                                                 SoundAttenuation         Sound attenuation       IfcPropertySet (Pset_SoundPowerLevels)        n/a   n/a   NIL
                                                                          (under a standard                                                                 
                                                                          test). Reference to a                                                             
                                                                          property set                                                                      
                                                                          Pset_SoundPowerLevels                                                             

                                                 MinimumOperatingTorque   Minimum operating       IfcSimplePropertyWithUnit(IfcTorqueMeasure)   0     n/a   NIL
                                                                          torque (under a                                                                   
                                                                          standard test)                                                                    

                                                 MaximumAllowableTorque   Maximum allowable       IfcSimplePropertyWithUnit(IfcTorqueMeasure)   0     n/a   NIL
                                                                          torque (under a                                                                   
                                                                          standard test such as                                                             
                                                                          EN 1751)                                                                          

                                                 Adjustments              Reference to the        IfcComplexProperty (SET \[1:4\] OF            n/a   n/a   empty
                                                                          Property Set defining   IfcPropertySet                                            list
                                                                          adjustable parameters   (Pset_ControlDamperAdjustments))                          

                                 **Target                                                                                                                   
                                 objects for                                                                                                                
                                 this                                                                                                                       
                                 PropertySet**                                                                                                              

                                                 IfcDamper                                                                                                  

                                                                                                                                                            
  ------------------------ -- -- --------------- ------------------------ ----------------------- --------------------------------------------- ----- ----- -------

## Pset_ElectricActuator

  --------------------------- -- -- --------------- --------------- -------------------- --------------------------------------------- -------- ------- --------
  **Pset_ElectricActuator**                                         describes electric                                                                  
                                                                    actuator product                                                                    
                                                                    data                                                                                

                                                    Movement        Rotary or linear     IfcEnumeratedProperty (Rotary, Linear, Other, Rotary   Unset   Rotary
                                                                                         NotKnown, Unset)                                               

                                                    HasPositioner   True if actuator has IfcSimpleProperty (IfcBoolean)                FALSE    TRUE    FALSE
                                                                    a positioner                                                                        

                                                    FailPosition    Position of actuator IfcEnumeratedProperty (Closed, Open,          Closed   Unset   Closed
                                                                    if power fails       CurrentPosition, Other, NotKnown, Unset)                       

                                                    Hysteresis      Hysteresis. A        IfcSimplePropertyWithUnit (IfcReal)           0        n/a     NIL
                                                                    measure of the                                                                      
                                                                    differences in                                                                      
                                                                    output for a system                                                                 
                                                                    responding to the                                                                   
                                                                    identical steady                                                                    
                                                                    state input when                                                                    
                                                                    approached from                                                                     
                                                                    different                                                                           
                                                                    directions.                                                                         

                                                    StrokeTime      Stroke time          IfcSimplePropertyWithUnit (IfcTimeMeasure)    0        n/a     NIL

                                                    RangeAngle      Range of movement    IfcSimplePropertyWithUnit (IfcAngleMeasure)   n/a      n/a     NIL
                                                                    (rotary actuators                                                                   
                                                                    only)                                                                               

                                                    Torque          Torque (rotary       IfcSimplePropertyWithUnit(IfcTorqueMeasure)   0        n/a     NIL
                                                                    actuators only)                                                                     

                                                    RangeLength     Range of movement    IfcSimplePropertyWithUnit (IfcLengthMeasure)  n/a      n/a     NIL
                                                                    (linear actuators                                                                   
                                                                    only)                                                                               

                                                    Force           Force (linear        IfcSimplePropertyWithUnit(IfcForceMeasure)    0        n/a     NIL
                                                                    actuators only)                                                                     

                                    **Target                                                                                                            
                                    objects for                                                                                                         
                                    this                                                                                                                
                                    PropertySet**                                                                                                       

                                                    IfcActuator                                                                                         

                                                                                                                                                        
  --------------------------- -- -- --------------- --------------- -------------------- --------------------------------------------- -------- ------- --------

## Pset_AirHandler

  --------------------- -- -- --------------- ------------------- ----------------------- -------------------------------- ----- ----- -----
  **Pset_AirHandler**                                             describes air handler                                                
                                                                  product data                                                         

                                              AirLeakageRate      Air leakage of the      IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  casing of air handler   (IfcVolumetricFlowrateMeasure)               
                                                                  subjected to air                                                     
                                                                  pressure (under a                                                    
                                                                  standard test)                                                       

                                              TransmittedSound    Noise transmitted into  IfcPropertySet                   n/a   n/a   NIL
                                                                  the ductwork (under a   (Pset_SoundPowerLevels)                      
                                                                  standard test such as                                                
                                                                  ISO 3741, ISO 3744, ISO                                              
                                                                  9614, ISO 5136).                                                     
                                                                  Reference to a property                                              
                                                                  set                                                                  
                                                                  Pset_SoundPowerLevels                                                

                                              EmittedSound        Airborne noise emitted  IfcPropertySet                   n/a   n/a   NIL
                                                                  by the casing of the    (Pset_SoundPowerLevels)                      
                                                                  unit (under a standard                                               
                                                                  test such as ISO 3741,                                               
                                                                  ISO 3744, ISO 3746, and                                              
                                                                  ISO 9614). Reference to                                              
                                                                  a property set                                                       
                                                                  Pset_SoundPowerLevels                                                

                                              ThermalInsulation   Thermal insulation of   IfcPropertySet (Pset_Insulation) n/a   n/a   NIL
                                                                  the casing                                                           

                              **Target                                                                                                 
                              objects for                                                                                              
                              this                                                                                                     
                              PropertySet**                                                                                            

                                                                                                                                       
  --------------------- -- -- --------------- ------------------- ----------------------- -------------------------------- ----- ----- -----

# ADDITIONS TO EXISTING DATA TYPES

## IfcControllerTypeEnum

  --------------------------- -- -- ------------------- -- ----------------------- ------- -- ------- ---------------------------------------------
  **IfcControllerTypeEnum**                                                                           This enumeration defines the different types
                                                                                                      of Equipment an IfcController object can
                                                                                                      fulfill.

                                    **IfcController**                                                 

                                                           **Pset_HeatingCurve**                      

                                                                                   \< Any             HEATINGCURVE
                                                                                   value              
                                                                                   \>                 

                                                                                                      
  --------------------------- -- -- ------------------- -- ----------------------- ------- -- ------- ---------------------------------------------

## IfcActuatorTypeEnum

  ------------------ -- -- ----------------- -- ------------------------------- ------- -- -------- ------------------------------------------
  **ActuatorType**                                                                                  This enumeration defines the different
                                                                                                    types of discrete elements an IfcActuator
                                                                                                    object can fulfill.

                           **IfcActuator**                                                          IfcActuator

                                                **Pset_ThermostaticActuator**                       

                                                                                \< Any              THERMOSTATICACTUATOR
                                                                                value               
                                                                                \>                  

                                                                                                    
  ------------------ -- -- ----------------- -- ------------------------------- ------- -- -------- ------------------------------------------

# NEW CLASSES

## IfcCooledBeam

Subclass of IfcHeatTransferDevice

  ------------------- -- -- -- --------------------------------- ----------------------- --------------------------------------- ---------------- ------- ----------------
  **IfcCooledBeam**                                              describes cooled beam                                                                    
                                                                 product data                                                                             

                               CooledBeamTypeEnum                Cooled beam type.       IfcEnumeratedProperty (Active, Passive, Active           Unset   Active
                                                                 Passive cooled beam     Other, NotKnown, Unset)                                          
                                                                 provides cooling (and                                                                    
                                                                 heating) to a room or                                                                    
                                                                 zone. Active cooled                                                                      
                                                                 beam provides cooling                                                                    
                                                                 (and heating) but also                                                                   
                                                                 functions as an air                                                                      
                                                                 terminal of ventilation                                                                  
                                                                 system                                                                                   

                               AirFlowConfigurationTypeEnum      Air flow configuration  IfcEnumeratedProperty                   OneSideAirFlow   Unset   OneSideAirFlow
                                                                 type of cooled beam     (OneSideAirFlow,TwoSideAirFlow,Other,                            
                                                                                         NotKnown, Unset)                                                 

                               TotalCoolingCapacity              Total cooling capacity  IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 (under a standard       (IfcPowerMeasure)                                                
                                                                 test). This includes                                                                     
                                                                 cooling capacity of                                                                      
                                                                 beam and cooling                                                                         
                                                                 capacity of supply air                                                                   

                               TotalHeatingCapacity              Total heating capacity  IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 (under a standard       (IfcPowerMeasure)                                                
                                                                 test). This includes                                                                     
                                                                 heating capacity of                                                                      
                                                                 beam and heating                                                                         
                                                                 capacity of supply air                                                                   

                               BeamCoolingCapacity               Cooling capacity of     IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 beam (under a standard  (IfcPowerMeasure)                                                
                                                                 test). This excludes                                                                     
                                                                 cooling capacity of                                                                      
                                                                 supply air                                                                               

                               BeamHeatingCapacity               Heating capacity of     IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 beam (under a standard  (IfcPowerMeasure)                                                
                                                                 test). This excludes                                                                     
                                                                 heating capacity of                                                                      
                                                                 supply air                                                                               

                               CoolingWaterFlowRate              Water flow rate for     IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 cooling                 (IfcVolumetricFlowrateMeasure)                                   

                               HeatingWaterFlowRate              Water flow rate for     IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 heating                 (IfcVolumetricFlowrateMeasure)                                   

                               AirFlowRate                       Air flow rate           IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                                         (IfcVolumetricFlowrateMeasure)                                   

                               EnteringAirTemperature            List of entering air    IfcComplexProperty (LIST \[1:2\] OF     n/a              n/a     NIL
                                                                 temperatures to cooled  IfcSimplePropertyWithUnit                                        
                                                                 beam; the list consists (IfcThermodynamicTemperatureMeasure))                            
                                                                 of dry bulb followed by                                                                  
                                                                 wet bulb                                                                                 

                               EnteringCoolingWaterTemperature   Entering water          IfcSimplePropertyWithUnit               n/a              n/a     NIL
                                                                 temperature for cooling (IfcThermodynamicTemperatureMeasure)                             

                               LeavingCoolingWaterTemperature    Leaving water           IfcSimplePropertyWithUnit               n/a              n/a     NIL
                                                                 temperature for cooling (IfcThermodynamicTemperatureMeasure)                             

                               EnteringHeatingWaterTemperature   Entering water          IfcSimplePropertyWithUnit               n/a              n/a     NIL
                                                                 temperature for heating (IfcThermodynamicTemperatureMeasure)                             

                               LeavingHeatingWaterTemperature    Leaving water           IfcSimplePropertyWithUnit               n/a              n/a     NIL
                                                                 temperature for heating (IfcThermodynamicTemperatureMeasure)                             

                               AirsidePressureDrop               Air-side pressure drop  IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 at the related air flow (IfcPressureMeasure)                                             
                                                                 rate (under a standard                                                                   
                                                                 test)                                                                                    

                               WatersidePressureDrop             Water-side pressure     IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 drop at the related     (IfcPressureMeasure)                                             
                                                                 water flow rate (under                                                                   
                                                                 a standard test)                                                                         

                               Throw                             Distance cooled beam    IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 throws the air at the   (IfcPositiveLengthMeasure)                                       
                                                                 related air flow rate,                                                                   
                                                                 before its velocity is                                                                   
                                                                 reduced to a specific                                                                    
                                                                 value (under a standard                                                                  
                                                                 test)                                                                                    

                               CoilLength                        Length of coil          IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                                         (IfcPositiveLengthMeasure)                                       

                               RegeneratedSound                  Regenerated sound       IfcPropertySet (Pset_SoundPowerLevels)  n/a              n/a     NIL
                                                                 (under a standard                                                                        
                                                                 test). Reference to a                                                                    
                                                                 property set                                                                             
                                                                 Pset_SoundPowerLevels                                                                    

                               SoundAttenuation                  Sound attenuation       IfcPropertySet (Pset_SoundPowerLevels)  n/a              n/a     NIL
                                                                 (under a standard                                                                        
                                                                 test). Reference to a                                                                    
                                                                 property set                                                                             
                                                                 Pset_SoundPowerLevels                                                                    

                               Color                             Color selection from    IfcSimpleProperty (IfcString)           n/a              n/a     empty string
                                                                 the manufacturer\'s                                                                      
                                                                 color options for the                                                                    
                                                                 body of cooled beam                                                                      

                               PipeTestPressure                  Test pressure of pipes  IfcSimplePropertyWithUnit               0                n/a     NIL
                                                                 (water circuits)        (IfcPressureMeasure)                                             
  ------------------- -- -- -- --------------------------------- ----------------------- --------------------------------------- ---------------- ------- ----------------

## IfcHumidifier

Subclass of IfcHeatTransferDevice

  ------------------- -- -- -- ---------------------------- --------- ----------------------- --------------------------------------- ------------- ------- -------------
  **IfcHumidifier**                                                   describes humidifier                                                                  
                                                                      product data                                                                          

                               HumidifierTypeEnum                     Humidifier type         IfcEnumeratedProperty (Evaporative,     Evaporative   Unset   Evaporative
                                                                                              Steam, Spray, Other, NotKnown, Unset)                         

                               HumidifierControlTypeEnum              Control type of         IfcEnumeratedProperty (WithoutControl,  Without       Unset   Without
                                                                      humidifier              WithStepControl, WithModulatingControl, control               control
                                                                                              Other, NotKnown, Unset)                                       

                               HumidificationEfficiency               Humidification          IfcSimpleProperty                       n/a           n/a     NIL
                                                                      efficiency (under a     (IfcNormalisedRatioMeasure)                                   
                                                                      standard test), ratio                                                                 
                                                                      between the mass of                                                                   
                                                                      water evaporated by the                                                               
                                                                      humidifier and the                                                                    
                                                                      theoretical mass needed                                                               
                                                                      to achieve saturation                                                                 
                                                                      at a given temperature                                                                
                                                                      (1 = saturation)                                                                      

                               EnteringAirTemperature                 List of air             IfcComplexProperty (LIST \[1:2\] OF     n/a           n/a     empty list
                                                                      temperatures of         IfcSimplePropertyWithUnit                                     
                                                                      entering conditions;    (IfcThermodynamicTemperatureMeasure))                         
                                                                      the list consists of                                                                  
                                                                      dry bulb followed by                                                                  
                                                                      wet bulb                                                                              

                               LeavingAirTemperature                  List of air             IfcComplexProperty (LIST \[1:2\] OF     n/a           n/a     empty list
                                                                      temperatures of leaving IfcSimplePropertyWithUnit                                     
                                                                      conditions; the list    (IfcThermodynamicTemperatureMeasure))                         
                                                                      consists of dry bulb                                                                  
                                                                      followed by wet bulb                                                                  

                               EnteringDryAirMassFlowRate             Entering dry air mass   IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      flow rate to humidifier (IfcMassFlowRateMeasure)                                      

                               WaterOrSteamTemperature                Water or steam          IfcSimplePropertyWithUnit               n/a           n/a     NIL
                                                                      temperature             (IfcThermodynamicTemperatureMeasure)                          

                               TotalWaterOrSteamFlowRate              Total water or steam    IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      mass flow rate. This    (IfcMassFlowRateMeasure)                                      
                                                                      includes overflow water                                                               
                                                                      mass flow rate                                                                        

                               OverflowWaterMassFlowRate              Overflow water mass     IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      flow rate               (IfcMassFlowRateMeasure)                                      

                               TotalHeatTransferRate                  Total heat transfer     IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      rate (under a standard  (IfcPowerMeasure)                                             
                                                                      test)                                                                                 

                               SensibleHeatTransferRate               Sensible heat transfer  IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      rate (under a standard  (IfcPowerMeasure)                                             
                                                                      test)                                                                                 

                               Height                       Height of                         IfcSimplePropertyWithUnit               0             n/a     NIL
                                                            flow                              (IfcPositiveLengthMeasure)                                    
                                                            cross                                                                                           
                                                            section                                                                                         

                               Width                        Width of                          IfcSimplePropertyWithUnit               0             n/a     NIL
                                                            flow                              (IfcPositiveLengthMeasure)                                    
                                                            cross                                                                                           
                                                            section                                                                                         

                               AirPressureDrop                        Air pressure drop at    IfcSimplePropertyWithUnit               0             n/a     NIL
                                                                      the related air flow    (IfcPressureMeasure)                                          
                                                                      rate (under a standard                                                                
                                                                      test)                                                                                 

                               RegeneratedSound                       Regenerated sound       IfcPropertySet (Pset_SoundPowerLevels)  n/a           n/a     NIL
                                                                      (under a standard                                                                     
                                                                      test). Reference to a                                                                 
                                                                      property set                                                                          
                                                                      Pset_SoundPowerLevels                                                                 

                               SoundAttenuation                       Sound attenuation       IfcPropertySet (Pset_SoundPowerLevels)  n/a           n/a     NIL
                                                                      (under a standard                                                                     
                                                                      test). Reference to a                                                                 
                                                                      property set                                                                          
                                                                      Pset_SoundPowerLevels                                                                 
  ------------------- -- -- -- ---------------------------- --------- ----------------------- --------------------------------------- ------------- ------- -------------

## IfcDuctedSilencer

Subclass of IfcTreatmentDevice

  ----------------------- -- -- -- ------------------------------ ----------------------- -------------------------------- ----- ----- -----
  **IfcDuctedSilencer**                                           describes ducted                                                     
                                                                  silencer product data                                                

                                   InsertionLoss                  Insertion loss of       IfcPropertySet                   n/a   n/a   NIL
                                                                  ducted silencer (under  (Pset_SoundPowerLevels)                      
                                                                  a standard test such as                                              
                                                                  EN ISO 7235). Reference                                              
                                                                  to a property set                                                    
                                                                  Pset_SoundPowerLevels                                                

                                   RegeneratedSound               Flow noise generated by IfcPropertySet                   n/a   n/a   NIL
                                                                  ducted silencer (under  (Pset_SoundPowerLevels)                      
                                                                  a standard test).                                                    
                                                                  Reference to a property                                              
                                                                  set                                                                  
                                                                  Pset_SoundPowerLevels                                                

                                   SilencerLength                 The finished length of  IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  the ducted silencer     (IfcPositiveLengthMeasure)                   

                                   Insulation                     Insulation              IfcPropertySet (Pset_Insulation) n/a   n/a   NIL

                                   TotalPressureLossCoefficient   Total pressure loss     IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  coefficient (according  (IfcReal)                                    
                                                                  to EN ISO 7235), the                                                 
                                                                  total pressure loss                                                  
                                                                  divided by the velocity                                              
                                                                  pressure upstream of                                                 
                                                                  the ducted silencer                                                  

                                   Height                         Height of flow cross    IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  section                 (IfcPositiveLengthMeasure)                   

                                   Width                          Width of flow cross     IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  section                 (IfcPositiveLengthMeasure)                   

                                   CrossSectionalArea             Cross-sectional area at IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  the point where the     (IfcAreaMeasure)                             
                                                                  velocity pressure is                                                 
                                                                  measured when                                                        
                                                                  determining the                                                      
                                                                  pressure loss                                                        
                                                                  coefficient                                                          

                                   AirFlowRate                    Air flow rate           IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                                          (IfcVolumetricFlowrateMeasure)               

                                   AirPressureDrop                Air pressure drop at    IfcSimplePropertyWithUnit        0     n/a   NIL
                                                                  the related air flow    (IfcPressureMeasure)                         
                                                                  rate (under a standard                                               
                                                                  test)                                                                

                                                                                                                                       
  ----------------------- -- -- -- ------------------------------ ----------------------- -------------------------------- ----- ----- -----

## IfcHeatRecoveryUnit

Subclass of IfcHeatTransferDevice

  ------------------------- -- -- -- ---------------------------- ----------------------------------------------------------- --------------------------------------- --------------- ------- ---------------
  **IfcHeatRecoveryUnit**                                         describes heat recovery unit product data (do not apply to                                                                  
                                                                  heat recovery units with pump and intermediary fluid)                                                                       

                                     HeatRecoveryUnitTypeEnum     This enumeration defines different heat recovery unit       IfcEnumeratedProperty                   AirToAirPlate   Unset   AirToAirPlate
                                                                  types.                                                      (AirToAirPlate,RotatingWheel,Other,                             
                                                                                                                              NotKnown, Unset)                                                

                                     ByPass                       Is there a bypass for airsteam? If there is, it can be      IfcSimpleProperty (IfcBoolean)          FALSE           TRUE    FALSE
                                                                  used, when the capacity of heat recovery unit is not                                                                        
                                                                  needed. TRUE=Yes, FALSE=No                                                                                                  

                                     UnFrost                      Is there an unfrosting system connected to heat recovery    IfcSimpleProperty (IfcBoolean)          FALSE           TRUE    FALSE
                                                                  unit? TRUE=Yes, FALSE=No                                                                                                    

                                     EnteringWarmAirTemperature   List of warm air temperatures of entering conditions; the   IfcComplexProperty (LIST \[1:2\] OF     n/a             n/a     empty list
                                                                  list consists of dry bulb followed by wet bulb              IfcSimplePropertyWithUnit                                       
                                                                                                                              (IfcThermodynamicTemperatureMeasure))                           

                                     LeavingWarmAirTemperature    List of warm air temperatures of leaving conditions; the    IfcComplexProperty (LIST \[1:2\] OF     n/a             n/a     empty list
                                                                  list consists of dry bulb followed by wet bulb              IfcSimplePropertyWithUnit                                       
                                                                                                                              (IfcThermodynamicTemperatureMeasure))                           

                                     WarmAirPressureDrop          Warm air pressure drop at the related warm air flow rate    IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                  (under a standard test)                                     (IfcPressureMeasure)                                            

                                     WarmAirFlowRate              Warm air flow rate                                          IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                                                                              (IfcVolumetricFlowrateMeasure)                                  

                                     EnteringColdAirTemperature   List of cold air temperatures of entering conditions; the   IfcComplexProperty (LIST \[1:2\] OF     n/a             n/a     empty list
                                                                  list consists of dry bulb followed by wet bulb              IfcSimplePropertyWithUnit                                       
                                                                                                                              (IfcThermodynamicTemperatureMeasure))                           

                                     LeavingColdAirTemperature    List of cold air temperatures of leaving conditions; the    IfcComplexProperty (LIST \[1:2\] OF     n/a             n/a     empty list
                                                                  list consists of dry bulb followed by wet bulb              IfcSimplePropertyWithUnit                                       
                                                                                                                              (IfcThermodynamicTemperatureMeasure))                           

                                     ColdAirPressureDrop          Cold air pressure drop at the related cold air flow rate    IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                  (under a standard test)                                     (IfcPressureMeasure)                                            

                                     ColdAirFlowRate              Cold air flow rate                                          IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                                                                              (IfcVolumetricFlowrateMeasure)                                  

                                     HeatTransferRate             Heat transfer rate at which energy is transferred from one  IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                  medium to another (under a standard test such as EN 305)    (IfcPowerMeasure)                                               

                                     TemperatureEfficiency        Temperature efficiency (under a standard test).             IfcSimpleProperty                       n/a             n/a     NIL
                                                                  TemperatureEfficiency = (LeavingColdAirTemperature -        (IfcNormalisedRatioMeasure)                                     
                                                                  EnteringColdAirTemperature)/(EnteringWarmAirTemperature -                                                                   
                                                                  EnteringColdAirTemperature)                                                                                                 

                                     HumidityEfficiency           Humidity efficiency (under a standard test)                 IfcSimpleProperty                       n/a             n/a     NIL
                                                                                                                              (IfcNormalisedRatioMeasure)                                     

                                     BypassRatio                  Heat recovery unit bypass ratio. The ratio of the diverted  IfcSimpleProperty                       n/a             n/a     NIL
                                                                  flow to the sum of main flow and the diverted flow (0 = no  (IfcNormalisedRatioMeasure)                                     
                                                                  bypass, 1 = total bypass)                                                                                                   

                                     Height                       Height of flow cross section                                IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                                                                              (IfcPositiveLengthMeasure)                                      

                                     Width                        Width of flow cross section                                 IfcSimplePropertyWithUnit               0               n/a     NIL
                                                                                                                              (IfcPositiveLengthMeasure)                                      

                                     InternalAirLeakage           The internal air leakage between two air streams (under a   IfcSimpleProperty                       n/a             n/a     NIL
                                                                  standard test)                                              (IfcNormalisedRatioMeasure)                                     

                                     RegeneratedSound             Regenerated sound (under a standard test). Reference to a   IfcPropertySet (Pset_SoundPowerLevels)  n/a             n/a     NIL
                                                                  property set Pset_SoundPowerLevels                                                                                          

                                     SoundAttenuation             Sound attenuation (under a standard test). Reference to a   IfcPropertySet (Pset_SoundPowerLevels)  n/a             n/a     NIL
                                                                  property set Pset_SoundPowerLevels                                                                                          

                                     DefrostingHeatRatio          Defrosting heat ratio (under a standard test such as prEN   IfcSimpleProperty                       n/a             n/a     NIL
                                                                  13053), ratio between the energy transferred into the       (IfcNormalisedRatioMeasure)                                     
                                                                  supply air and the maximum recoverable energy in exhaust                                                                    
                                                                  air, excluding the energy input for defrosting                                                                              
  ------------------------- -- -- -- ---------------------------- ----------------------------------------------------------- --------------------------------------- --------------- ------- ---------------

## IfcRadiator

Subclass of IfcHeatTransferDevice

  ----------------- -- -- -- ------------------------------------------- ---------------------- -------------------------------------- ----- ----- -----
  **IfcRadiator**                                                        describes radiator                                                        
                                                                         product data. Radiator                                                    
                                                                         is an heating                                                             
                                                                         appliance which emits                                                     
                                                                         heat by natural                                                           
                                                                         convection and                                                            
                                                                         radiation. Radiators                                                      
                                                                         can be produced with                                                      
                                                                         different materials                                                       
                                                                         (e.g. steel,                                                              
                                                                         aluminium, cast-iron)                                                     
                                                                         and with different                                                        
                                                                         designs (e.g. plate                                                       
                                                                         type, column type,                                                        
                                                                         tube type).                                                               

                             RadiatorTypeEnum                            type of the radiator   IfcEnumeratedProperty (Panel,                      
                                                                         design                 Column,Tube, 0ther, NotKnown, Unset)               

                             StandardThermalOutput                       the thermal output of  IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         a radiator defined for (IfcPowerMeasure)                                  
                                                                         a standard reference                                                      
                                                                         air temperature of 20°                                                    
                                                                         C, the standard air                                                       
                                                                         pressure 101.325 kPa,                                                     
                                                                         an inlet water                                                            
                                                                         temperature of 75° C                                                      
                                                                         and an outlet water                                                       
                                                                         temperature of 65° C.                                                     

                             StandardInletWaterTemperature               inlet water            IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         temperature related to (IfcThermodynamicTemperatureMeasure)               
                                                                         standard test                                                             
                                                                         conditions.                                                               

                             StandardOutletWaterTemperature              outlet water           IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         temperature related to (IfcThermodynamicTemperatureMeasure)               
                                                                         standard test                                                             
                                                                         conditions.                                                               

                             StandardReferenceEnvironmentalTemperature   reference              IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         environmental          (IfcThermodynamicTemperatureMeasure)               
                                                                         temperature related to                                                    
                                                                         standard test                                                             
                                                                         conditions. The                                                           
                                                                         environmental                                                             
                                                                         temperature is to be                                                      
                                                                         measured on vertical                                                      
                                                                         line at the centre of                                                     
                                                                         the room, 0.75 meter                                                      
                                                                         above the floor level.                                                    

                             StandardWaterFlowRate                       water flow rate        IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         related to standard    (IfcMassFlowRateMeasure)                           
                                                                         test conditions.                                                          

                             SpecificCharacteristicExponent              The characteristic     IfcSimpleProperty (IfcReal)            n/a   n/a   NIL
                                                                         equation gives the                                                        
                                                                         thermal output as a                                                       
                                                                         function of the excess                                                    
                                                                         temperature at                                                            
                                                                         constant water flow                                                       
                                                                         rate. The                                                                 
                                                                         characteristic                                                            
                                                                         equation is a power                                                       
                                                                         function with a                                                           
                                                                         specific                                                                  
                                                                         characteristic                                                            
                                                                         exponent.                                                                 

                             RadiationRatio                              ratio of radiative     IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         heat transfer rate to  (IfcRatioMeasure)                                  
                                                                         totla heat transfer                                                       
                                                                         rate.                                                                     

                             BodyMaterial                                reference to a         IfcObjectReference (IfcMaterial)       n/a   n/a   NIL
                                                                         material used to                                                          
                                                                         construct the radiator                                                    

                             BodyMass                                    overall radiator mass  IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                (IfcMassMeasure)                                   

                             WaterContent                                radiator water         IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                         content.               (IfcVolumeMeasure)                                 

                             NumberOfPanels                              Number of panels       IfcReal                                            
                                                                         (panel radiators only)                                                    

                             NumberOfSections                            Number of vertical     IfcReal                                            
                                                                         sections, measured in                                                     
                                                                         the direction of flow                                                     

                             ConnectionPositions                         Positions of           IfcComplexProperty (LIST \[1:2\] OF                
                                                                         connection ports, list IfcEnumeratedProperty (TopLeft,                    
                                                                         of inlet position      TopRight, BottomLeft, BottomRight,                 
                                                                         followed by outlet     Other, NotKnown, Unset)                            
                                                                         position, left and                                                        
                                                                         right defined looking                                                     
                                                                         from centre of room                                                       
                                                                         towards radiator                                                          

                             Length                                      Horizontal extent of   IfcSimplePropertyWithUnit                          
                                                                         emitting surface in    (IfcLengthMeasure)                                 
                                                                         direction of water                                                        
                                                                         flow, excluding pipe                                                      
                                                                         fittngs, valves etc                                                       

                             Height                                      Vertical extent of     IfcSimplePropertyWithUnit                          
                                                                         emitting surface       (IfcLengthMeasure)                                 

                             Depth                                       Horizontal extent of   IfcSimplePropertyWithUnit                          
                                                                         emitting surface(s)    (IfcLengthMeasure)                                 
                                                                         perpendicular to                                                          
                                                                         direction of water                                                        
                                                                         flow,                                                                     

                             Adjustments                                 reference to the       IfcComplexProperty (SET \[1:4\] OF     n/a   n/a   NIL
                                                                         property set defining  IfcPropertySet                                     
                                                                         adjustable parameters  (Pset_RadiatorAdjustments))                        
  ----------------- -- -- -- ------------------------------------------- ---------------------- -------------------------------------- ----- ----- -----

# NEW PROPERTY SETS

## Pset_CooledBeamDesignCriteria

  ----------------------------------- -- -- --------------- --------------------------------- ---------------------- --------------------------------------- -------- ------- --------
  **Pset_CooledBeamDesignCriteria**                                                           describes design                                                                
                                                                                              criteria used for the                                                           
                                                                                              design of each cooled                                                           
                                                                                              beam within the cooled                                                          
                                                                                              beam system                                                                     

                                                            CooledBeamTypeEnum                Cooled beam type.      IfcEnumeratedProperty (Active, Passive, Active   Unset   Active
                                                                                              Passive cooled beam    Other, NotKnown, Unset)                                  
                                                                                              provides cooling and                                                            
                                                                                              heating to a room or                                                            
                                                                                              zone. Active cooled                                                             
                                                                                              beam provides cooling                                                           
                                                                                              and heating but also                                                            
                                                                                              functions as an air                                                             
                                                                                              terminal of                                                                     
                                                                                              ventilation system                                                              

                                                            TotalCoolingCapacity              Required total cooling IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              capacity from a cooled (IfcPowerMeasure)                                        
                                                                                              beam                                                                            

                                                            TotalHeatingCapacity              Required total heating IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              capacity from a cooled (IfcPowerMeasure)                                        
                                                                                              beam                                                                            

                                                            SupplyAirFlowRate                 Required supply air    IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              flow rate of a cooled  (IfcVolumetricFlowrateMeasure)                           
                                                                                              beam. This air flow                                                             
                                                                                              comes from ventilation                                                          
                                                                                              system                                                                          

                                                            EnteringAirTemperature            List of design air     IfcComplexProperty (LIST \[1:2\] OF     n/a      n/a     NIL
                                                                                              temperatures of        IfcSimplePropertyWithUnit                                
                                                                                              entering conditions;   (IfcThermodynamicTemperatureMeasure))                    
                                                                                              the list consists of                                                            
                                                                                              dry bulb followed by                                                            
                                                                                              wet bulb                                                                        

                                                            EnteringCoolingWaterTemperature   Design value of        IfcSimplePropertyWithUnit               n/a      n/a     NIL
                                                                                              entering water         (IfcThermodynamicTemperatureMeasure)                     
                                                                                              temperature for                                                                 
                                                                                              cooling                                                                         

                                                            EnteringHeatingWaterTemperature   Design value of        IfcSimplePropertyWithUnit               n/a      n/a     NIL
                                                                                              entering water         (IfcThermodynamicTemperatureMeasure)                     
                                                                                              temperature for                                                                 
                                                                                              heating                                                                         

                                                            MaximumSoundPower                 Maximum acceptable     IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              sound power level      (IfcSoundMeasure)                                        

                                                            MaximumUnitLength                 Maximum unit length    IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                                                     (IfcPositiveLengthMeasure)                               

                                                            MaximumUnitWidth                  Maximum unit width     IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                                                     (IfcPositiveLengthMeasure)                               

                                                            MaximumUnitHeight                 Maximum unit height    IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                                                     (IfcPositiveLengthMeasure)                               

                                                            MaximumWatersidePressureDrop      Maximum acceptable     IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              water-side pressure    (IfcPressureMeasure)                                     
                                                                                              drop                                                                            

                                                            MaximumAirsidePressureDrop        Maximum acceptable     IfcSimplePropertyWithUnit               0        n/a     NIL
                                                                                              air-side pressure drop (IfcPressureMeasure)                                     
                                                                                              at required air flow                                                            
                                                                                              rate                                                                            

                                            **Target                                                                                                                          
                                            objects for                                                                                                                       
                                            this                                                                                                                              
                                            PropertySet**                                                                                                                     

                                                            IfcCooledBeam                                                                                                     

                                                                                                                                                                              
  ----------------------------------- -- -- --------------- --------------------------------- ---------------------- --------------------------------------- -------- ------- --------

## Pset_AirHandlerDesignCriteria

  ----------------------------------- -- -- --------------- ------------------------------------ ---------------------- ---------------------------------------- ------------------- ------- -------------------
  **Pset_AirHandlerDesignCriteria**                                                              describes design                                                                            
                                                                                                 criteria used for the                                                                       
                                                                                                 design of each air                                                                          
                                                                                                 handler within the air                                                                      
                                                                                                 handling system                                                                             

                                                            FlowType                             air flow type          ENUMERATION OF (ConstantAirVolume,       ConstantAirVolume   Unset   ConstantAirVolume
                                                                                                                        VariableAirVolume, Other, NotKnown,                                  
                                                                                                                        Unset)                                                               

                                                            SupplyAirFlowRate                    Required supply air    IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 flow rate              (IfcVolumetricFlowrateMeasure)                                       

                                                            TurnDownRatio                        Ratio of minimum to    IfcSimpleProperty                        n/a                 n/a     NIL
                                                                                                 maximum air flow rate  (IfcNormalisedRatioMeasure)                                          
                                                                                                 (variable air volume                                                                        
                                                                                                 systems only)                                                                               

                                                            MinimumOutsideAirFraction            Minimum ratio of       IfcSimpleProperty                        n/a                 n/a     NIL
                                                                                                 outside air flow rate  (IfcNormalisedRatioMeasure)                                          
                                                                                                 to supply air flow                                                                          
                                                                                                 rate                                                                                        

                                                            MinimumOutsideAirFlowRate            Minimum outside air    IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 flow rate              (IfcVolumetricFlowrateMeasure)                                       

                                                            SupplyAirTemperatureHeating          List of supply air     IfcComplexProperty (LIST \[1:2\] OF      n/a                 n/a     NIL
                                                                                                 temperatures at design IfcSimplePropertyWithUnit                                            
                                                                                                 heating conditions;    (IfcThermodynamicTemperatureMeasure))                                
                                                                                                 the list consists of                                                                        
                                                                                                 dry bulb followed by                                                                        
                                                                                                 wet bulb                                                                                    

                                                            SupplyAirTemperatureCooling          List of supply air     IfcComplexProperty (LIST \[1:2\] OF      n/a                 n/a     NIL
                                                                                                 temperatures at design IfcSimplePropertyWithUnit                                            
                                                                                                 cooling conditions;    (IfcThermodynamicTemperatureMeasure))                                
                                                                                                 the list consists of                                                                        
                                                                                                 dry bulb followed by                                                                        
                                                                                                 wet bulb                                                                                    

                                                            DesignOutsideAirTemperatureHeating   List of outside air    IfcComplexProperty (LIST \[1:2\] OF      n/a                 n/a     NIL
                                                                                                 temperatures at design IfcSimplePropertyWithUnit                                            
                                                                                                 heating conditions;    (IfcThermodynamicTemperatureMeasure))                                
                                                                                                 the list consists of                                                                        
                                                                                                 dry bulb followed by                                                                        
                                                                                                 wet bulb                                                                                    

                                                            DesignOutsideAirTemperatureCooling   List of outside air    IfcComplexProperty (LIST \[1:2\] OF      n/a                 n/a     NIL
                                                                                                 temperatures at design IfcSimplePropertyWithUnit                                            
                                                                                                 cooling conditions;    (IfcThermodynamicTemperatureMeasure))                                
                                                                                                 the list consists of                                                                        
                                                                                                 dry bulb followed by                                                                        
                                                                                                 wet bulb                                                                                    

                                                            DesignHeatSourceTemperature          Supply temperature of  IfcSimplePropertyWithUnit                n/a                 n/a     NIL
                                                                                                 hot water or steam at  (IfcThermodynamicTemperatureMeasure)                                 
                                                                                                 design heating                                                                              
                                                                                                 conditions                                                                                  

                                                            DesignChilledWaterTemperature        Supply temperature of  IfcSimplePropertyWithUnit                n/a                 n/a     NIL
                                                                                                 chilled water at       (IfcThermodynamicTemperatureMeasure)                                 
                                                                                                 design cooling                                                                              
                                                                                                 conditions                                                                                  

                                                            SupplyAirTotalPressure               Total pressure of      IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 supply air at          (IfcPressureMeasure)                                                 
                                                                                                 discharge of air                                                                            
                                                                                                 handling unit                                                                               

                                                            ReturnAirTotalPressure               Total pressure of      IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 return air at entrance (IfcPressureMeasure)                                                 
                                                                                                 of air handling unit                                                                        

                                                            MaximumAirsidePressureDrop           Maximum acceptable     IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 air-side pressure drop (IfcPressureMeasure)                                                 
                                                                                                 at required air flow                                                                        
                                                                                                 rate                                                                                        

                                                            MaximumTransmittedSound              Maximum acceptable     IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 sound power level      (IfcSoundMeasure)                                                    
                                                                                                 transmitted by the                                                                          
                                                                                                 unit into the ductwork                                                                      

                                                            MaximumEmittedSound                  Maximum acceptable     IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 sound power level      (IfcSoundMeasure)                                                    
                                                                                                 emitted by the casing                                                                       
                                                                                                 of the unit                                                                                 

                                                            MaximumUnitLength                    Maximum unit length    IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                                        (IfcPositiveLengthMeasure)                                           

                                                            MaximumUnitWidth                     Maximum unit width     IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                                        (IfcPositiveLengthMeasure)                                           

                                                            MaximumUnitHeight                    Maximum unit height    IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                                        (IfcPositiveLengthMeasure)                                           

                                                            MaximumSpecificFanPower              Maximum acceptable fan IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 power per unit         (IfcPowerPerVolumetricFlowRateMeasure)                               
                                                                                                 volumumetric flow                                                                           
                                                                                                 rate. Total power of                                                                        
                                                                                                 fans / air flow rate.                                                                       

                                                            MaximumLeakage                       Maximum acceptable     IfcSimplePropertyWithUnit                0                   n/a     NIL
                                                                                                 total air leakage flow (IfcVolumetricFlowrateMeasure)                                       
                                                                                                 of casing at fixed                                                                          
                                                                                                 pressure                                                                                    

                                            **Target                                                                                                                                         
                                            objects for                                                                                                                                      
                                            this                                                                                                                                             
                                            PropertySet**                                                                                                                                    

                                                            Pset_AirHandler                                                                                                                  

                                                                                                                                                                                             
  ----------------------------------- -- -- --------------- ------------------------------------ ---------------------- ---------------------------------------- ------------------- ------- -------------------

## Pset_ValveCharacteristics

  ------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------
  **Pset_ValveCharacteristics**                                                                   describes valve                                                   
                                                                                                  characteristics                                                   

                                                        InherentCharacteristicEnum                Inherent               IfcEnumeratedProperty     Linear   Unset   Linear
                                                                                                  characteristic of the  (Linear, Exponential,                      
                                                                                                  valve                  Other, NotKnown, Unset)                    

                                                        PressureVersusFlowCharacteristicsValues   Total pressure drop    IfcSimpleProperty         n/a      n/a     NIL
                                                                                                  versus fluid flow rate (IfcPropertyTablevalue)                    
                                                                                                  curve values (under a                                             
                                                                                                  standard test)                                                    

                                        **Target                                                                                                                    
                                        objects for                                                                                                                 
                                        this                                                                                                                        
                                        PropertySet**                                                                                                               

                                                                                                                                                                    
  ------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------

## Pset_DamperCharacteristics

  -------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------
  **Pset_DamperCharacteristics**                                                                   describes damper                                                  
                                                                                                   characteristics                                                   

                                                         InherentCharacteristicEnum                Inherent               IfcEnumeratedProperty     Linear   Unset   Linear
                                                                                                   characteristic of the  (Linear, Exponential,                      
                                                                                                   damper                 Other, NotKnown, Unset)                    

                                                         PressureVersusFlowCharacteristicsValues   Total pressure drop    IfcSimpleProperty         n/a      n/a     NIL
                                                                                                   versus fluid flow rate (IfcPropertyTablevalue)                    
                                                                                                   curve values (under a                                             
                                                                                                   standard test)                                                    

                                         **Target                                                                                                                    
                                         objects for                                                                                                                 
                                         this                                                                                                                        
                                         PropertySet**                                                                                                               

                                                                                                                                                                     
  -------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------

## Pset_FluidMovingDeviceCharacteristics

  ------------------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------
  **Pset_FluidMovingDeviceCharacteristics**                                                                   describes fluid moving                                            
                                                                                                              device characteristics                                            

                                                                    InherentCharacteristicEnum                Inherent               IfcEnumeratedProperty     Linear   Unset   Linear
                                                                                                              characteristic of      (Linear, Exponential,                      
                                                                                                              fluid moving device    Other, NotKnown, Unset)                    

                                                                    PressureVersusFlowCharacteristicsValues   Total pressure rise    IfcSimpleProperty         n/a      n/a     NIL
                                                                                                              versus fluid flow rate (IfcPropertyTablevalue)                    
                                                                                                              curve values at                                                   
                                                                                                              maximum speed (under a                                            
                                                                                                              standard test)                                                    

                                                                    PowerVersusFlowCharacteristicsValues      Electrical Power       IfcSimpleProperty         n/a      n/a     NIL
                                                                                                              versus fluid flow rate (IfcPropertyTablevalue)                    
                                                                                                              curve values at                                                   
                                                                                                              maximum speed (under a                                            
                                                                                                              standard test)                                                    

                                                    **Target                                                                                                                    
                                                    objects for                                                                                                                 
                                                    this                                                                                                                        
                                                    PropertySet**                                                                                                               

                                                                                                                                                                                

                                                                                                                                                                                
  ------------------------------------------- -- -- --------------- ----------------------------------------- ---------------------- ------------------------- -------- ------- --------

## Pset_ControlDamperAdjustments

  ----------------------------------- -- -- --------------- ----------------------------- ---------------------- ----------------------------- -------- ------- --------
  **Pset_ControlDamperAdjustments**                                                       describes the control                                                 
                                                                                          damper in different                                                   
                                                                                          phases of the                                                         
                                                                                          life-cycle                                                            

                                                            ReferringLifeCyclePhaseEnum   Reference to the       IfcEnumeratedProperty         Design   Unset   Design
                                                                                          life-cycle phase in    (Design, Commissioning,                        
                                                                                          which parameters are   Monitoring, Maintenance,                       
                                                                                          adjusted               Other, NotKnown, Unset)                        

                                                            Authority                     Authority              IfcSimpleProperty             n/a      n/a     NIL
                                                                                                                 (IfcNormalisedRatioMeasure)                    

                                            **Target                                                                                                            
                                            objects for                                                                                                         
                                            this                                                                                                                
                                            PropertySet**                                                                                                       

                                                            Pset_ControlDamper                                                                                  

                                                                                                                                                                
  ----------------------------------- -- -- --------------- ----------------------------- ---------------------- ----------------------------- -------- ------- --------

## Pset_ValveAdjustments

  --------------------------- -- -- --------------- ----------------------------- ---------------------- ----------------------------- -------- ------- --------
  **Pset_ValveAdjustments**                                                       describes the valve in                                                
                                                                                  different phases of                                                   
                                                                                  the life-cycle                                                        

                                                    ReferringLifeCyclePhaseEnum   Reference to the       IfcEnumeratedProperty         Design   Unset   Design
                                                                                  life-cycle phase in    (Design, Commissioning,                        
                                                                                  which parameters are   Monitoring, Maintenance,                       
                                                                                  adjusted               Other, NotKnown, Unset)                        

                                                    Authority                     Authority              IfcSimpleProperty             n/a      n/a     NIL
                                                                                                         (IfcNormalisedRatioMeasure)                    

                                    **Target                                                                                                            
                                    objects for                                                                                                         
                                    this                                                                                                                
                                    PropertySet**                                                                                                       

                                                    IfcValve                                                                                            

                                                                                                                                                        
  --------------------------- -- -- --------------- ----------------------------- ---------------------- ----------------------------- -------- ------- --------

## Pset_RadiatorSystemDesigCriteria

  --------------------------------------- -- -- --------------- ------------------------ ---------------------- -------------------------------------- ----- ----- -----
  **Pset_RadiatorSystemDesignCriteria**                                                  describes design                                                          
                                                                                         criteria used for the                                                     
                                                                                         design of a radiator                                                      
                                                                                         heating system                                                            

                                                                RadiatorSystemTypeEnum   installation type of   IfcEnumeratedProperty (SinglePipe,     n/a   n/a   NIL
                                                                                         the heating system     DualPipe, Other, NotKnown, Unset)                  

                                                                ThermalOutput            overall thermal output IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         required for the       (IfcPowerMeasure)                                  
                                                                                         system                                                                    

                                                                InletWaterTemperature    intent inlet water     IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         temperature, the bulk  (IfcThermodynamicTemperatureMeasure)               
                                                                                         temperature of the                                                        
                                                                                         water entering an                                                         
                                                                                         heating system                                                            
                                                                                         component                                                                 

                                                                OutletWaterTemperature   intent outlet          IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         temperature, the bulk  (IfcThermodynamicTemperatureMeasure)               
                                                                                         temperature of the                                                        
                                                                                         water leaving an                                                          
                                                                                         heating system                                                            
                                                                                         component                                                                 

                                                                MaximumWaterFlowRate     intent maximum water   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         flow rate for the      (IfcMassFlowRateMeasure)                           
                                                                                         system                                                                    

                                                                ValveAuthority           intent valve authority IfcSimpleProperty (IfcReal)            n/a   n/a   NIL
                                                                                         in the system                                                             

                                                **Target                                                                                                           
                                                objects for                                                                                                        
                                                this                                                                                                               
                                                PropertySet**                                                                                                      

                                                                IfcSystem, IfcSpace,                                                                               
                                                                IfcZone                                                                                            

                                                                                                                                                                   
  --------------------------------------- -- -- --------------- ------------------------ ---------------------- -------------------------------------- ----- ----- -----

## Pset_RadiatorDesignCriteria

  --------------------------------- -- -- --------------- ------------------------------ ---------------------- -------------------------------------- ----- ----- -----
  **Pset_RadiatorDesignCriteria**                                                        describes design                                                          
                                                                                         criteria used for the                                                     
                                                                                         design of each                                                            
                                                                                         radiator within the                                                       
                                                                                         heating system                                                            

                                                          ThermalOutput                  required thermal       IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         output for a radiator  (IfcPowerMeasure)                                  

                                                          InletWaterTemperature          required inlet water   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         temperature, the bulk  (IfcThermodynamicTemperatureMeasure)               
                                                                                         temperature of the                                                        
                                                                                         water entering                                                            
                                                                                         radiator                                                                  

                                                          OutletWaterTemperature         required outlet        IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         temperature, the bulk  (IfcThermodynamicTemperatureMeasure)               
                                                                                         temperature of the                                                        
                                                                                         water leaving a                                                           
                                                                                         radiator                                                                  

                                                          RoomEnvironmentalTemperature   environmental          IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         temperature in room    (IfcThermodynamicTemperatureMeasure)               

                                                          MaximumWaterFlowRate           required maximum water IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                         flow rate for a        (IfcMassFlowRateMeasure)                           
                                                                                         radiator                                                                  

                                          **Target                                                                                                                 
                                          objects for                                                                                                              
                                          this                                                                                                                     
                                          PropertySet**                                                                                                            

                                                          IfcSystem, IfcSpace, IfcZone                                                                             
  --------------------------------- -- -- --------------- ------------------------------ ---------------------- -------------------------------------- ----- ----- -----

## Pset_ThermostaticActuator

  ------------------------------- -- -- --------------- --------------------------------------------------- ---------------------- -------------------------------------- ----- ----- -----
  **Pset_ThermostaticActuator**                                                                             describes thermostatic                                                    
                                                                                                            actuator product data                                                     

                                                        HeatTransmittanceResistanceFromMediumToSensor       heat transfer          IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            resistance from the    (IfcThermalResistanceMeasure)                      
                                                                                                            valve to the sensor                                                       

                                                        SurfaceArea                                         surface area of the    IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            thermostatic actuator  (IfcAreaMeasure)                                   

                                                        HeatCapacity                                        heat capacity of the   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            thermostatic actuator  (IfcHeatCapacityMeasure)                           

                                                        ConvectiveHeatTransmittanceCoefficient              convective heat        IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            transfer coefficient   (IfcThermalTransmittanceMeasure)                   
                                                                                                            from air to sensor                                                        

                                                        RadiativeHeatTransmittanceCoefficientFromRadiator   radiative heat         IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            transfer coefficient   (IfcThermalTransmittanceMeasure)                   
                                                                                                            from radiator to                                                          
                                                                                                            sensor                                                                    

                                                        ProportionalBand                                    proportional band of   IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                            the thermostatic       (IfcThermodynamicTemperatureMeasure)               
                                                                                                            actuator                                                                  

                                        **Target                                                                                                                                      
                                        objects for                                                                                                                                   
                                        this                                                                                                                                          
                                        PropertySet**                                                                                                                                 

                                                        IfcActuator                                                                                                                   

                                                                                                                                                                                      
  ------------------------------- -- -- --------------- --------------------------------------------------- ---------------------- -------------------------------------- ----- ----- -----

## Pset_HeatingCurve

  ----------------------- -- -- --------------- --------------- ---------------------- ----------------------------- ----- ----- -----
  **Pset_HeatingCurve**                                         describes heating                                                
                                                                curve                                                            

                                                Adjustments     reference to the       IfcComplexProperty (SET       n/a   n/a   NIL
                                                                property set defining  \[1:4\] OF IfcPropertySet                 
                                                                adjustable parameters  (Pset_RadiatorAdjustments))               

                                **Target                                                                                         
                                objects for                                                                                      
                                this                                                                                             
                                PropertySet**                                                                                    

                                                IfcController                                                                    

                                                                                                                                 
  ----------------------- -- -- --------------- --------------- ---------------------- ----------------------------- ----- ----- -----

## Pset_BoilerAdjustments

  ---------------------------- -- -- --------------- ----------------------------- ---------------------- -------------------------------------- ----- ----- -----
  **Pset_BoilerAdjustments**                                                       describes parameters                                                      
                                                                                   of the boiler adjusted                                                    
                                                                                   in different phases of                                                    
                                                                                   the life-cycle                                                            

                                                     ReferringLifeCyclePhaseEnum   Reference to the       IfcEnumeratedProperty (Design,         n/a   n/a   NIL
                                                                                   life-cycle phase in    Commissioning, Monitoring,                         
                                                                                   which parameters are   Maintenance, Other, NotKnown, Unset)               
                                                                                   adjusted                                                                  

                                                     MinimumOperationTime          minimum operation time IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                   of the boiler          (IfcTimeMeasure)                                   

                                                     MaximumHeatLoad               maximum energy load    IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                          (IfcPowerMeasure)                                  

                                                     MinimumHeatLoad               minimum energy load    IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                                          (IfcPowerMeasure)                                  

                                                     Deadband                      temperature difference IfcSimplePropertyWithUnit              n/a   n/a   NIL
                                                                                   between start and stop (IfcThermodynamicTemperatureMeasure)               
                                                                                   operation                                                                 

                                                     Lambda                        stoichiometic fuel/air IfcSimpleProperty (IfcReal)            n/a   n/a   NIL
                                                                                   ratio                                                                     

                                     **Target                                                                                                                
                                     objects for                                                                                                             
                                     this                                                                                                                    
                                     PropertySet**                                                                                                           

                                                     IfcBoiler                                                                                               

                                                                                                                                                             
  ---------------------------- -- -- --------------- ----------------------------- ---------------------- -------------------------------------- ----- ----- -----

## Pset_RadiatorAdjustments

  ------------------------------ -- -- --------------- ----------------------------- ---------------------- ----------------------- ----- ----- -----
  **Pset_RadiatorAdjustments**                                                       describes parameters                                       
                                                                                     of the radiator                                            
                                                                                     adjusted in different                                      
                                                                                     phases of the                                              
                                                                                     life-cycle                                                 

                                                       ReferringLifeCyclePhaseEnum   reference to the       IfcEnumeratedProperty   n/a   n/a   NIL
                                                                                     life-cycle phase in    (Design, Commissioning,             
                                                                                     which parameters are   Monitoring,                         
                                                                                     adjusted               Maintenance, Other,                 
                                                                                                            NotKnown, Unset)                    

                                                       ThermalOutputReduction        reduction of thermal   IfcSimpleProperty       n/a   n/a   NIL
                                                                                     power due to           (IfcReal)                           
                                                                                     obstruction                                                

                                       **Target                                                                                                 
                                       objects for                                                                                              
                                       this                                                                                                     
                                       PropertySet**                                                                                            

                                                       IfcRadiator                                                                              

                                                                                                                                                
  ------------------------------ -- -- --------------- ----------------------------- ---------------------- ----------------------- ----- ----- -----

## Pset_HeatingCurveAdjustments

<table style="width:100%;">
<colgroup>
<col style="width: 3%" />
<col style="width: 2%" />
<col style="width: 2%" />
<col style="width: 2%" />
<col style="width: 17%" />
<col style="width: 31%" />
<col style="width: 16%" />
<col style="width: 7%" />
<col style="width: 7%" />
<col style="width: 7%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="5"><strong>Pset_HeatingCurveAdjustments</strong></td>
<td>describes the heating curve in different phases of the
life-cycle</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>ReferringLifeCyclePhaseEnum</td>
<td>reference to the life-cycle phase in which parameters are
adjusted</td>
<td>IfcEnumeratedProperty (Design, Commissioning, Monitoring,
Maintenance, Other, NotKnown, Unset)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>Gradient</td>
<td><p>Describes the heating curve mathematically.</p>
<p>It is defined as the difference of inlet water temperatures devided
by the difference of outside temperatures.</p></td>
<td>IfcSimpleProperty (IfcReal)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>InitalOutsideTemperature</td>
<td>temperature below which heating begins</td>
<td>IfcSimplePropertyWithUnit (IfcThermodynamicTemperatureMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>InletWaterTemperatureReduction</td>
<td>reduction of the supply temperature (e.g. at night)</td>
<td>IfcComplexProperty (LIST [1:24] OF IfcSimplePropertyWithUnit
(IfcThermodynamicTemperatureMeasure))</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td colspan="2"><strong>Target objects for this
PropertySet</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>Pset_HeatingCurve</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

## Pset_MeteorologicalData

<table style="width:100%;">
<colgroup>
<col style="width: 3%" />
<col style="width: 2%" />
<col style="width: 2%" />
<col style="width: 2%" />
<col style="width: 17%" />
<col style="width: 31%" />
<col style="width: 16%" />
<col style="width: 7%" />
<col style="width: 7%" />
<col style="width: 7%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="5"><strong>Pset_MeteorologicalData</strong></td>
<td>describes meteorological data</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>DataSourceEnum</td>
<td>references the source where meteorological data come from</td>
<td>IfcEnumeratedProperty (TestReferenceYear, ActualData, Other,
NotKnown, Unset)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>DryBulbTemperature</td>
<td>dry bulb outside temperature</td>
<td>IfcSimplePropertyWithUnit (IfcThermodynamicTemperatureMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>WetBulbTemperature</td>
<td>wet bulb outside temperature</td>
<td>IfcSimplePropertyWithUnit (IfcThermodynamicTemperatureMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>AtmosphericPressure</td>
<td>atmospheric pressure</td>
<td>IfcSimplePropertyWithUnit (IfcPressureMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>DirectRadiation</td>
<td>direct radiation measured on a horizontal surface</td>
<td>IfcSimplePropertyWithUnit (IfcHeatFluxDensityMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>DiffuseRadiation</td>
<td>diffuse radiation measured on a horizontal surface</td>
<td>IfcSimplePropertyWithUnit (IfcHeatFluxDensityMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td>WindDirection</td>
<td><p>wind direction</p>
<p>by convention: North = 0°, East = 90°, South = 180°, West =
270°</p></td>
<td>IfcSimpleProperty (IfcInteger)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>WindSpeed</td>
<td>wind speed</td>
<td>IfcSimplePropertyWithUnit (IfcLinearVelocityMeasure)</td>
<td>n/a</td>
<td>n/a</td>
<td>NIL</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td colspan="2"><strong>Target objects for this
PropertySet</strong></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td></td>
<td></td>
<td></td>
<td>IfcSite, IfcProject</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

# NEW TYPE DEFINITIONS

  ---------------------------------- ---- -- ------------------------------------- ---------- --------------------------- ----------- ---------- -------- ------------------------------------------ --
                                     \#      **TypeDef Name**                                                                                             *Description*                              

                                                                                   ***Class                                                                                                          
                                                                                   being                                                                                                             
                                                                                   Typed***                                                                                                          

                                                                                              ***Generic Type***                                                                                     

  *Defined*                                                                                                               *Specific                                                                  
                                                                                                                          Type /                                                                     
                                                                                                                          domain                                                                     
                                                                                                                          defining                                                                   
                                                                                                                          type*                                                                      

  *In*                                                                                                                                *Att_Set            *Attribute Sets*                           
                                                                                                                                      \#*                                                            

                                                                                                                                                                                                     

  **CooledBeamTypeEnum**                                                                                                                                                                             

                                             **IfcCooledBeamTypeEnum**                                                                                                                               

                                                                                              **Active**                                                                                             

                                                                                              **Passive**                                                                                            

                                                                                              **Other**                                                                                              

                                                                                              **NotKnown**                                                                                           

                                                                                              **Unset**                                                                                              

                                                                                                                                                                                                     

  **AirFlowConfigurationTypeEnum**                                                                                                                                                                   

                                             **IfcAirFlowConfigurationTypeEnum**                                                                                                                     

                                                                                              **OneSideAirFlow**                                                                                     

                                                                                              **TwoSideAirFlow**                                                                                     

                                                                                              **Other**                                                                                              

                                                                                              **NotKnown**                                                                                           

                                                                                              **Unset**                                                                                              

                                                                                                                                                                                                     

  **HumidifierTypeEnum**                                                                                                                                                                             

                                             **IfcHumidifierTypeEnum**                                                                                                                               

                                                                                              **Evaporative**                                                                                        

                                                                                              **Steam**                                                                                              

                                                                                              **Spray**                                                                                              

                                                                                              **Other**                                                                                              

                                                                                              **NotKnown**                                                                                           

                                                                                              **Unset**                                                                                              

                                                                                                                                                                                                     

  **HumidifierControlTypeEnum**                                                                                                                                                                      

                                             **IfcHumidifierControlTypeEnum**                                                                                                                        

                                                                                              **WithoutControl**                                                                                     

                                                                                              **WithStepControl**                                                                                    

                                                                                              **WithModulatingControl**                                                                              

                                                                                              **Other**                                                                                              

                                                                                              **NotKnown**                                                                                           

                                                                                              **Unset**                                                                                              

                                                                                                                                                                                                     

  **HeatRecoveryUnitTypeEnum**                                                                                                                                                                       

                                             **IfcHeatRecoveryUnitTypeEnum**                                                                                                                         

                                                                                              **AirToAirPlate**                                                                                      

                                                                                              **RotatingWheel**                                                                                      

                                                                                              **WithModulatingControl**                                                                              

                                                                                              **Other**                                                                                              

                                                                                              **NotKnown**                                                                                           

                                                                                              **Unset**                                                                                              
  ---------------------------------- ---- -- ------------------------------------- ---------- --------------------------- ----------- ---------- -------- ------------------------------------------ --

# NEW DATA TYPES

## IfcSoundMeasure

  ---------- --------------------- --------------------- ------------------------------
             **Defined Data Type   **Data Type           **Semantic definition of this
             Name**                Definition**          data type**

  **Simple                                               
  Types**                                                

             **IfcSoundMeasure**   REAL                  A measure of sound power or
                                                         sound pressure level. Measured
                                                         in desibels \[dB\].
  ---------- --------------------- --------------------- ------------------------------

## IfcHeatCapacityMeasure

  ---------- ---------------------------- --------------------- ------------------------------
             **Defined Data Type Name**   **Data Type           **Semantic definition of this
                                          Definition**          data type**

  **Simple                                                      
  Types**                                                       

             **IfcHeatCapacityMeasure**   REAL                  A measure of heat capacity.
                                                                Measured in \[J/K\].
  ---------- ---------------------------- --------------------- ------------------------------

## IfcPowerPerVolumetricFlowRateMeasure

  ---------- ------------------------------------------ --------------------- ------------------------------
             **Defined Data Type Name**                 **Data Type           **Semantic definition of this
                                                        Definition**          data type**

  **Simple                                                                    
  Types**                                                                     

             **IfcPowerPerVolumetricFlowRateMeasure**   REAL                  A measure of power per
                                                                              volumetric flow rate. Measured
                                                                              in \[Ws/m^3^\].
  ---------- ------------------------------------------ --------------------- ------------------------------

## IfcTorqueMeasure

  ---------- ---------------------- --------------------- ------------------------------
             **Defined Data Type    **Data Type           **Semantic definition of this
             Name**                 Definition**          data type**

  **Simple                                                
  Types**                                                 

             **IfcTorqueMeasure**   REAL                  A measure of torque. Measured
                                                          in \[Nm\].
  ---------- ---------------------- --------------------- ------------------------------