Typed Object
PropertySet Diagram
Definition from IAI: Schedule of usage for a 24-hour period. This property set is typically used for defining schedules of operation (e.g., lighting, occupancy, etc.) for use in calculating thermal loads.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Name
IfcSimpleProperty
Name of schedule
UsageList
IfcPropertyList
IfcSimpleProperty, IfcReal
List of decimal fractions between 0 and 1 reflecting hourly usage intensity. The first value in the list represents the hour between midnight and 1 AM, the second value in the list represents the hour between 1 and 2 AM, etc. NOTES: 1) this will be implemented as a shared Pset_ScheduleUsageList - which contains a list of IfcReal properties
Duration
IfcSimpleProperty
Schedule start and end dates and times
Definition from IAI: The aggregated thermal loads experienced by one or many spaces or zones. This aggregate load information is typically addressed by a system or plant.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
TotalCoolingLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
The peak total cooling load for the building (Data type = PowerMeasure)
TotalHeatingLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
The peak total heating load for the building (Data type = PowerMeasure)
LightingDiversity
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Lighting diversity. (Data type = PercentMeasure)
InfiltrationDiversitySummer
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity factor for Summer infiltration. (Data type = PercentMeasure)
InfiltrationDiversityWinter
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity factor for Winter infiltration. (Data type = PercentMeasure)
ApplianceDiversity
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity of applicance load. (Data type = PercentMeasure)
LoadSafetyFactor
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Load safety factor. (Data type = PercentMeasure)
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Typed Object |
PropertySet Diagram |
Definition from IAI: Apparatus used to remove particulate or gaseous matter from air. This property set is typically used in conjunction with another piece of equipment, such as an AirHandler or PackagedACUnit.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
MaximumAirFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Maximum listed air flow rate of the filter based on the manufacturer. Note that rating filters is varied and not exact per ASHRAE S-24.5. (Data type = VolumetricFlowrateMeasure)
Efficiency
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Efficiency of the air filter at the MaximumAirFlowrate per ASHRAE Systems and Equipment Handbook 1996 S-24.5, Figure 3. (Data type = PercentMeasure)
CleanPressureDrop
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Pressure drop at the MaximumAirFlowrate across the filter when the filter is new per ASHRAE Standard 52.1. (Data type = PressureMeasure)
DirtyPressureDrop
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Pressure drop at the MaximumAirFlowrate across the filter when the filter needs replacement per ASHRAE Standard 52.1. (Data type = PressureMeasure)
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment which modifies the psychrometric properties of a controlled air stream. It typically consists of an arrangement of Fans, Coils and AirFilters.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
AirHandlerConstruction
IfcEnumeratedProperty
Pset_AirHandlerConstructionEnum(ManufacturedItem, ConstructedOnSite, Other, NotKnown, Unset)
Enumeration defining how the air handler might be fabricated.
AirHandlerFanCoilArrangement
IfcEnumeratedProperty
Pset_AirHandlerFanCoilArrangementEnum(BlowThrough, DrawThrough, Other, NotKnown, Unset)
Enumeration defining the arrangement of the supply air fan and the cooling coil.
DualDeck
IfcSimpleProperty
Does the AirHandler have a dual deck? TRUE = Yes, FALSE = No.
Fans
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
Bag of one or more references to an IfcFlowEquipment object of type Fan that defines the supply, return or exhaust air fan(s) that are used by the AirHandler
Coils
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
Bag of one or more references to an IfcFlowEquipment object of type Coil that defines the coil(s) that are used by the AirHandler
AirFilters
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
Bag of one or more references to an IfcFlowEquipment object of type AirFilter that defines the air filter(s) that are used by the AirHandler
Definition from IAI: Attributes that apply to an air side HVAC system.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Name
IfcSimpleProperty
The name of the air side system
Description
IfcSimpleProperty
The description of the air side system
AirSideSystemType
IfcEnumeratedProperty
Pset_AirSideSystemTypeEnum(ConstantVolume, ConstantVolumeSingleZone, ConstantVolumeMultipleZoneReheat, ConstantVolumeBypass, VariableAirVolume, VariableAirVolumeReheat, VariableAirVolumeInduction, VariableAirVolumeFanPowered, VariableAirVolumeDualConduit, VariableAirVolumeVariableDiffusers, VariableAirVolumeVariableTemperature, Other, NotKnown, Unset)
This enumeration specifies the basic types of possible air side systems (e.g., Constant Volume, Variable Volume, etc.)
AirSideSystemDistributionType
IfcEnumeratedProperty
Pset_AirSideSystemDistributionTypeEnum(SingleDuct, DualDuct, Multizone, Other, NotKnown, Unset)
This enumeration defines the basic types of air side systems (e.g., SingleDuct, DualDuct, Multizone, etc.)
TotalAirflow
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
The total design supply air flowrate required for the system for either heating or cooling conditions, whichever is greater (Data type = VolumetricFlowrateMeasure)
EnergyGainTotal
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
The total amount of energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level total energy gains (Data type = PowerMeasure)
AirflowSensible
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
The air flowrate required to satisfy the sensible peak loads (Data type = VolumetricFlowrateMeasure)
EnergyGainSensible
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
The sum of total energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level sensible energy gains (Data type = PowerMeasure)
CoolingCoilEnteringDryBulb
IfcSimpleProperty
The system cooling coil entering dry bulb temperature at the peak
CoolingCoilEnteringWetBulb
IfcSimpleProperty
The system cooling coil entering wet bulb temperature at the peak
CoolingCoilLeavingDryBulb
IfcSimpleProperty
The system cooling coil entering dry bulb temperature at the peak
CoolingCoilLeavingWetBulb
IfcSimpleProperty
The system cooling coil entering wet bulb temperature at the peak
EnergyLoss
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
The sum of energy losses for the spaces served by the system during the peak heating conditions (Data type = PowerMeasure)
LightingDiversity
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Lighting diversity. (Data type = PercentMeasure)
InfiltrationDiversitySummer
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity factor for Summer infiltration. (Data type = PercentMeasure)
InfiltrationDiversityWinter
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity factor for Winter infiltration. (Data type = PercentMeasure)
ApplianceDiversity
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Diversity of applicance load. (Data type = PercentMeasure)
LoadSafetyFactor
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Load safety factor. (Data type = PercentMeasure)
HeatingTemperatureDelta
IfcSimpleProperty
Heating temperature difference for calculating space air flow rates
CoolingTemperatureDelta
IfcSimpleProperty
Cooling temperature difference for calculating space air flow rates
Ventilation
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Required outside air ventilation (Data type = VolumetricFlowrateMeasure)
FanPower
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Fan motor loads contributing to the cooling load (Data type = PowerMeasure)
DuctHeatFactor
IfcSimpleProperty
Duct heat factor
Fans
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
List of references to IfcFlowEquipment objects typically of type Fan, AirHandler or PackagedACUnit which are participating in the movement of air in the system.
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Typed Object |
PropertySet Diagram |
Definition from IAI: This property set is used to define characteristics of an air terminal. Air terminals used to supply air are called registers, and typically have an integral damper. If there is no means of adjusting airflow, they are called grilles and are typically used for return air and exhaust. Note that this property set currently makes no distinction between these semantic definitions.
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
AirFlowType
IfcEnumeratedProperty
Pset_AirFlowTypeEnum(Supply, Return, Exhaust, Other, NotKnown, Unset)
Enumeration defining the functional type of Air Terminal
MaximumFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Maximum air flowrate for the terminal device (Data type = VolumetricFlowrateMeasure)
PressureLoss
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Pressure loss through the terminal device at the MaximumFlowrate (Data type = PressureMeasure)
Throw
IfcSimpleProperty
The distance the air terminal throws the air at the MaximumFlowrate
SoundLevel
IfcObjectReference
IfcGloballyUniqueId, Pset_SoundPressureLevels
Reference to a property set Pset_SoundPowerLevels which contains sound power level data
ADPI
IfcSimpleProperty
Air diffusion performance index
FinishType
IfcEnumeratedProperty
Pset_FinishTypeEnum(Annodize, Paint, None, Other, NotKnown, Unset)
Enumeration that identifies the type of finish for the air terminal
FinishColor
IfcSimpleProperty
The finish color for the air terminal
MountingType
IfcEnumeratedProperty
Pset_MountingTypeEnum(Surface, FlatFlush, Surface, LayIn, Other, NotKnown, Unset)
Enumeration that identifies the way the terminal is mounted
FaceType
IfcEnumeratedProperty
Pset_FaceTypeEnum(FourWayPattern, SingleDeflection, DoubleDeflection, SightProof, EggCrate, Perforated, Louvered, Other, NotKnown, Unset)
Enumeration that identifies the how the terminal face is constructed
CoreType
IfcEnumeratedProperty
Pset_CoreTypeEnum(None, ShutterBlade, CurvedBlade, Removable, Reversible, Other, NotKnown, Unset)
Enumeration that identifies the way the terminal core is constructed
CoreSetHorizontal
IfcSimpleProperty
Degree of blade set from the centerline
CoreSetVertical
IfcSimpleProperty
Degree of blade set from the centerline
IntegralDamper
IfcObjectReference
IfcGloballyUniqueId, IfcDamper
Reference to a damper object that is integral to the terminal device
IntegralControl
IfcSimpleProperty
Self powered temperature control
Definition from IAI: Appliances or office equipment which contribute thermal loads to a space.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Description
IfcSimpleProperty
Additional information about the appliance or equipment that might be useful to the HVAC design
MaximumSensibleLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Maximum or Peak sensible thermal load contributed by equipment (Data type = PowerMeasure)
MaximumLatentLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Maximum or Peak latent thermal load contributed by equipment (Data type = PowerMeasure)
StandbySensibleLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Sensible thermal load contributed by equipment when it is idle (Data type = PowerMeasure)
StandbyLatentLoad
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Latent thermal load contributed by equipment when it is idle (Data type = PowerMeasure)
SensibleLoadToRadiant
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Percent of sensible thermal load to radiant heat (Data type = PercentMeasure)
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PropertySet Diagram |
Definition from IAI: Equipment which converts stored energy to heat which is added to a fluid; typically used to heat water, utilizing a single input fuel source.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
BoilerType
IfcEnumeratedProperty
Pset_BoilerTypeEnum(HotWater, GasFired, Steam, Other, NotKnown, Unset)
This enumeration defines boiler types by heat transfer medium.
HeatOutput
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Total nominal boiler heat output as listed by the Boiler manufacturer. (Data type = PowerMeasure)
PressureRating
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Nominal pressure rating of the boiler as rated by ASME Boiler and Pressure Vessel Code Section IV, Rules for Construction of Heating Boilers, and Section I, Rules for Construction of Power Boilers. (Data type = PressureMeasure)
ThermalEfficiency
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Overall energy efficiency of the boiler at full load conditions. Overall Efficiency is defined as gross energy output (e.g., steam or water leaving the boiler) divided by the energy input. (Data type = PercentMeasure)
TubeBundle
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcFlowEquipment object of type TubeBundle which cointains information about the Boiler's TubeBundle
EnergySource
IfcEnumeratedProperty
Pset_EnergySourceEnum(Electricity, NaturalGas, Oil, LiquifiedPetroleumGas, Propane, Steam, Other, NotKnown, Unset)
This enumeration identifies the primary energy source the boiler is using.
EnergyInputRate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Nominal fuel consumption rate required to produce the total boiler heat output (Data type = VolumetricFlowrateMeasure)
Definition from IAI: This property set contains thermal properties for boundary elements. This property set is therefore attached to Architectural elements such as a wall, roof, floor, etc.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
BoundaryDescription
IfcSimpleProperty
A boundary description that is used by the HVAC engineer (e.g. ASHRAE component type); this may or may not be the same material description provided by the architect.
BoundaryThermalTransmittanceCoefficient
IfcSimplePropertyWithUnit
IfcReal, IfcThermalTransmittanceMeasure
Overall thermal transmittance coefficient (U-Value) of the composite materials used by the boundary element (Data type = ThermalTransmittanceMeasure)
BoundaryColor
IfcSimpleProperty
Color of the boundary (i.e. light, medium, or dark for roofs)
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment used to implement a refrigeration cycle for cooling a fluid.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
ChillerType
IfcEnumeratedProperty
Pset_ChillerTypeEnum(AirCooled, WaterCooled, HeatRecovery, Other, NotKnown, Unset)
This enumeration defines the typical types of chillers (e.g., air-cooled, water-cooled, etc.)
NominalCoolingCapacity
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Nominal cooling capacity of chiller at standardized conditions per ARI Standards 550-92, Centrifugal and Rotary Screw Water-Chilling Packages, and ARI Standards 590-92, Positive Displacement Compressor (Data type = PowerMeasure)
ThermalEfficiency
IfcSimpleProperty
Coeficient of Performance defined as the ratio of cooling energy output to energy input under full load operating conditions per ARI Standards 550-92, Centrifugal and Rotary Screw Water-Chilling Packages, and ARI Standards 590-92, Positive Displacement C
Refrigerant
IfcObjectReference
IfcGloballyUniqueId, Pset_Fluid
Reference to Pset_Fluid property set for information about the properties of the refrigerant used by the Chiller.
Compressors
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
Bag of references to IfcFlowEquipment objects of type Compressor that are used by the Chiller to perform work on the refrigerant.
Evaporator
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcFlowEquipment object of type TubeBundle which cointains information about the Evaporator TubeBundle
Condensor
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcFlowEquipment object of type TubeBundle which cointains information about the Condenser TubeBundle
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment used to provide heat transfer between non-mixing media. This is typically used in conjunction with an AirHandler or PackagedACUnit and uses a TubeBundle.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
CoilType
IfcEnumeratedProperty
Pset_CoilTypeEnum(PreCooling, Cooling, ReCooling, PreHeating, Heating, ReHeating, Other, NotKnown, Unset)
This enumeration defines typical types of coils (e.g., Cooling, Heating, etc.)
HeatTransferRate
IfcSimplePropertyWithUnit
IfcReal, PowerMeasure
Rate at which energy is transferred from one mediium to another (Data type = PowerMeasure)
TubeBundle
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcFlowEquipment object of type TubeBundle which cointains information about the Coil TubeBundle
NumberOfRows
IfcSimpleProperty
Number of tube rows in the coil assembly
TubeFlowArrangement
IfcSimpleProperty
The configuration of flow through coil tubes
FinMaterial
IfcObjectReference
Reference to a material used to construct the fins on a coil tube
FinSpacing
IfcSimpleProperty
Interval between the fins on a coil tube
BypassFactor
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Coil bypass factor (Data type = PercentMeasure)
FaceVelocity
IfcSimplePropertyWithUnit
IfcReal, LinearVelocityUnit
Air velocity through coil face (Data type = LinearVelocityMeasure)
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment that compresses a fluid typically used in a refrigeration circuit.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
CompressorType
IfcEnumeratedProperty
Pset_CompressorTypeEnum(Hermetic, Reciprocating, Screw, Other, NotKnown, Unset)
This enumeration defines the typical types of compressors (e.g., hermetic, reciprocating, etc.)
NominalCapacity
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Nominal capacity of the compressor at standard conditions (Data type = PowerMeasure)
ThermalEfficiency
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Energy efficiency of compressor at standard operating conditions (Data type = PercentMeasure)
Refrigerant
IfcObjectReference
IfcGloballyUniqueId, Pset_Fluid
Reference to Pset_Fluid property set for information about the properties of the refrigerant used in the compressor
HotGasBypass
IfcSimpleProperty
Whether or not hot gas bypass is provided for the compressor. TRUE = Yes, FALSE = No.
Motor
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcEquipment object of type Motor which cointains information about the Compressor Motor.
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonElectricalApplianceProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_ElectricalApplianceCommon
Reference to the 'parent' SharedPropertySet (Pset_ElectricalApplianceCommon). Contains the shared values for this type -- properties that are stored for all types of ElectricalAppliances.
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment which adds heat to a space utilizing natural convection.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
Length
IfcSimpleProperty
Nominal length of convector
HeatOutput
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Nominal heat transfer rate of convector (Data type = PowerMeasure)
FinConstruction
IfcSimpleProperty
Material used for construction of convector tube fin
FinSize
IfcSimpleProperty
Size of tube fins
FinSpacing
IfcSimpleProperty
Interval between tube fins
EnclosureType
IfcSimpleProperty
Nominal type of enclosure around convector
EnclosureConfiguration
IfcSimpleProperty
Configuration of enclosure around convector
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Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment which rejects heat to ambient air.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
CoolingTowerType
IfcEnumeratedProperty
Pset_CoolingTowerTypeEnum(OpenTower, ClosedTower, WoodFill, Ceramic, CrossFlow, Other, NotKnown, Unset)
This enumeration defines the typical types of cooling towers (e.g., OpenTower, ClosedTower, CrossFlow, etc.).
DesignWetBulbTemperature
IfcSimpleProperty
Ambient wet bulb temperature used for selecting the cooling tower
DesignDryBulbTemperature
IfcSimpleProperty
Ambient dry bulb temperature used for selecting the cooling tower
DesignEnteringWaterTemperature
IfcSimpleProperty
Temperature of liquid entering the cooling tower
DesignLeavingWaterTemperature
IfcSimpleProperty
Temperature of liquid leaving the cooling tower
WaterFlowRate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Design liquid flow rate through the cooling tower (Data type = VolumetricFlowrateMeasure)
AirFlowRate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Air flow rate through the cooling tower (Data type = VolumetricFlowrateMeasure)
Fans
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcFlowEquipment
Bag of one or more references to an IfcFlowEquipment object of type Fan that defines properties of any fan(s) that are used by the CoolingTower.
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonElectricalApplianceProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_ElectricalApplianceCommon
Reference to the 'parent' SharedPropertySet (Pset_ElectricalApplianceCommon). Contains the shared values for this type -- properties that are stored for all types of ElectricalAppliances.
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
MaximumFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Maximum fluid flowrate through all the inlets for the distribution flow element (Data type = VolumetricFlowrateMeasure)
DesignFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Design fluid flowrate through all the inlets for the distribution flow element (Data type = VolumetricFlowrateMeasure)
MinimumFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Minimum fluid flowrate through all the inlets for the distribution flow element (Data type = VolumetricFlowrateMeasure)
PressureLoss
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Pressure loss or drop through the distribution flow element at the MaximumFlowrate. (Data type = PressureMeasure)
WorkingPressure
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
The actual working pressure at the primary inlet for the distribution flow element. (Data type = PressureMeasure)
DesignPressureRating
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
The design pressure rating for the distribution flow element. (Data type = PressureMeasure)
Definition from IAI: This property set is used to define the general characteristics of the duct design parameters. This property set is typically attached to an instance of an IfcSystem, however, it may also be attached to individual elements within a duct distribution system where individual design parameters overrule those of the system. Related property sets include Pset_Fluid and Pset_Insulation.
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
DesignName
IfcSimpleProperty
A name for the design values
DuctSizingMethod
IfcEnumeratedProperty
Pset_DuctSizingMethodEnum( ConstantFriction, ConstantPressure, StaticRegain, Other, NotKnown, Unset)
Enumeration that identifies the methodology to be used to size system components
PressureClass
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Nominal pressure rating of the system components. (Data type = PressureMeasure)
LeakageClass
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Nominal leakage rating for the system components. (Data type = PressureMeasure)
FrictionLoss
IfcSimplePropertyWithUnit
IfcReal, PressureUnit/LengthUnit
The pressure loss due to friction per unit length. (Data type = PressureMeasure/LengthMeasure)
LiningType
IfcObjectReference
IfcGloballyUniqueId, Pset_Insulation
The insulating lining type to be used
InsulationType
IfcObjectReference
IfcGloballyUniqueId, Pset_Insulation
The insulation type to be used
ScrapFactor
IfcSimpleProperty
Sheet metal scrap factor
DuctSealant
IfcSimpleProperty
Type of sealant used on the duct and fittings
MaximumVelocity
IfcSimplePropertyWithUnit
IfcReal, LinearVelocityUnit
The maximum design velocity of the air in the duct or fitting. (Data type = LinearVelocityMeasure)
AspectRatio
IfcSimpleProperty
The default aspect ratio
MinimumHeight
IfcSimpleProperty
The minimum duct height for rectangular, oval or round duct
MinimumWidth
IfcSimpleProperty
The minimum duct width for oval or rectangular duct
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Typed Object |
PropertySet Diagram |
Definition from IAI: This property set is used to define the characteristics of a duct fitting. Related property sets include Pset_DuctDesignCriteria.
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
FittingSubType
IfcSimpleProperty
Subtype of fitting (i.e., 5-gore, pleated, stamped, etc.)
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Typed Object |
PropertySet Diagram |
Definition from IAI: This property set is used to define the characteristics of a duct segment. Related property sets include Pset_DuctDesignCriteria.
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
FinishedLength
IfcSimpleProperty
The finished length of the duct segment
LongitudinalSeam
IfcSimpleProperty
The type of seam to be used along the longitudinal axis of the duct segment
Reinforcement
IfcSimpleProperty
The type of reinforcement used for the duct segment
ReinforcementSpacing
IfcSimpleProperty
The spacing between reinforcing elements
Definition from IAI: This property set is used to define the general characteristics of the duct system and is typically attached to an instance of an IfcSystem. Related property sets include Pset_Fluid and Pset_Insulation.
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
DuctSystemType
IfcEnumeratedProperty
Pset_DuctSystemTypeEnum( VariableAirVolume, ConstantVolume, DoubleDuct, Other, NotKnown, Unset)
Enumeration that identifies the type of system
SystemDescription
IfcSimpleProperty
System description
SystemLocation
IfcSimpleProperty
Physical description of the part of the building the system serves
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Description
IfcSimpleProperty
String description of the configuration for this appliance type. Note: name is included in the TypeDefinition.
AssetInformation
IfcObjectReference
IfcGloballyUniqueId, Pset_Asset
Reference to an OccurrencePropertySet (Pset_Asset) containing Information about this asset. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
ManufactureInformation
IfcObjectReference
IfcGloballyUniqueId, IfcManufactureInformation
Reference to property set Pset_ManufactureInformation, which defines information about the manufacture of this appliance.
ElectricalCharacteristics
IfcObjectReference
IfcGloballyUniqueId, IfcElectricalCharacteristics
Reference to an OccurrencePropertySet (Pset_ElectricalCharacteristics) containing information about the electrical requirements for this Electrical Appliance. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
MaintenanceInformation
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcMaintenanceRecord
References to IfcMaintenanceRecord objects containing maintenance history
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Description
IfcSimpleProperty
Description of this fixture type. Note: name is included in the TypeDefinition.
AssetInformation
IfcObjectReference
IfcGloballyUniqueId, Pset_Asset
Reference to an OccurrencePropertySet (Pset_Asset) containing Information about this asset. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
ManufactureInformation
IfcObjectReference
IfcGloballyUniqueId, IfcManufactureInformation
Reference to property set Pset_ManufactureInformation, which defines information about the manufacture of this fixture.
ElectricalCharacteristics
IfcObjectReference
IfcGloballyUniqueId, IfcElectricalCharacteristics
Reference to an OccurrencePropertySet (Pset_ElectricalCharacteristics) containing information about the electrical requirements for this fixture. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
MaintenanceInformation
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcMaintenanceRecord
References to IfcMaintenanceRecord objects containing maintenance history
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
AccessSpaceRequired
IfcObjectReference
IfcGloballyUniqueId, IfcSpace
Space required to service this element
SupplySpaceRequired
IfcObjectReference
IfcGloballyUniqueId, IfcSpace
Space adjacent to the element used to reach the access space
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to a SharedPropertySet (Pset_EquipmentCommon) which defines properties that are stored for all types of equipment.
Occupancy
IfcSimpleProperty
Number of occupants
ManufactureInformation
IfcObjectReference
IfcGloballyUniqueId, IfcManufactureInformation
reference to Pset_ManufactureInformation
LoadCapacity
IfcSimpleProperty
Weight capacity of elevator
ClientBrief
IfcObjectReference
IfcGloballyUniqueId, IfcSpaceProgram
Reference to program to gain requirements for occupancy
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Description
IfcSimpleProperty
String description of the configuration for this equipment type. Note: name is included in the TypeDefinition.
OccurenceInformation
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentOccurence
Reference to an OccurrencePropertySet (Pset_EquipmentOccurrence) containing information stored for all types of equipment. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
ManufactureInformation
IfcObjectReference
IfcGloballyUniqueId, IfcManufactureInformation
Reference to property set Pset_ManufactureInformation, which defines information about the manufacture of this equipment.
AccessSpace
IfcObjectReference
IfcGloballyUniqueId, Pset_ElementAccess
Reference to an OccurrencePropertySet (Pset_ElementAccess) containing information describing access space required for this equipment. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
MaintenanceInformation
IfcPropertyList
IfcObjectReference, IfcGloballyUniqueId, IfcMaintenanceRecord
References to IfcMaintenanceRecord objects containing maintenance history
ElectricalCharacteristics
IfcObjectReference
IfcGloballyUniqueId, IfcElectricalCharacteristics
Reference to an OccurrencePropertySet (Pset_ElectricalCharacteristics) containing information about the electrical requirements for this equipment. This property set will be attached to the subject object - in the list of OccurrencePropertysets defined in the IfcObject supertype.
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
TagIdentifier
IfcSimpleProperty
User-Defined identifier for this equipment instance
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to a SharedPropertySet (Pset_EquipmentCommon) which defines properties that are stored for all types of equipment.
Capacity
IfcSimpleProperty
number of people that can be moved from the top to the bottom
ManufactureInformation
IfcObjectReference
IfcGloballyUniqueId, IfcManufactureInformation
reference to Pset_ManufactureInformation
ClientBrief
IfcObjectReference
IfcGloballyUniqueId, IfcSpaceProgram
Link to program to gain requirements for occupancy
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Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonElectricalApplianceProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_ElectricalApplianceCommon
Reference to the 'parent' SharedPropertySet (Pset_ElectricalApplianceCommon). Contains the shared values for this type -- properties that are stored for all types of ElectricalAppliances.
|
Typed Object |
PropertySet Diagram |
Definition from IAI: Equipment which imparts mechanical work on a gas.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonEquipmentProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_EquipmentCommon
Reference to the 'parent' SharedPropertySet (Pset_EquipmentCommon). Contains the shared values for this type -- of properties that are stored for all types of equipment.
AirFlowType
IfcEnumeratedProperty
Pset_AirFlowTypeEnum(Supply, Return, Exhaust, Other, NotKnown, Unset)
This enumeration defines the basic flow function that the fan performs (e.g., supply, return, exhaust, etc.).
FluidMover
IfcObjectReference
IfcGloballyUniqueId, Pset_FluidMover
Reference to the Pset_FluidMover property set which contains fluid flow characteristics for the fan
StaticPressure
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
The static amount of pressure within the air stream system that the fan must overcome to insure designed circulation of air (Note that this is different from the total pressure contained in IfcFluidMover) (Data type = PressureMeasure)
FanPressureClass
IfcEnumeratedProperty
Pset_FanPressureClassEnum(Class1, Class2, Class3, Class4, Other, NotKnown, Unset)
This enumeration defines the Pressure Class of the fan used for identifying the thickness and types of materials required for the construction of the fan assembly.
MinimumTemperature
IfcSimpleProperty
The minimum design temperature of the air passing through the fan
MaximumTemperature
IfcSimpleProperty
The maximum design temperature of the air passing through the fan
FanWheelType
IfcEnumeratedProperty
Pset_FanWheelTypeEnum(ForwardCurved, BackwardCurved, AirFoil, Propeller,VaneAxial, Plug, Other, NotKnown, Unset)
This enumeration defines the types of wheels typically utilized in fans.
WheelConstruction
IfcObjectReference
The material used to construct the fan wheel
WheelTipSpeed
IfcSimplePropertyWithUnit
IfcReal, LinearVelocityUnit
The linear speed of the tip of the fan blade furthest from the shaft (Data type = LinearVelocityMeasure)
HousingConstruction
IfcObjectReference
The material used to construct the fan housing
DischargeVelocity
IfcSimplePropertyWithUnit
IfcReal, LinearVelocityUnit
The speed at which air discharges from the fan through the fan housing discharge opening (Data type = LinearVelocityMeasure)
DischargePressureLoss
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Fan discharge pressure losses associated with the discharge arrangement (Data type = PressureMeasure)
FanDischarge
IfcEnumeratedProperty
Pset_FanDischargeEnum(Duct, Screen, None, Other, NotKnown, Unset)
This enumeration identifies the types of discharge arrangements from the fan housing discharge opening, which is used to determine the DischargePressureLoss
FanArrangement
IfcEnumeratedProperty
Pset_FanArrangementEnum(TopHorizontal, TopAngularDown, DownBlast, BottomAngularDown, BottomHorizontal, BottomAngularUp, UpBlast, TopAngularUp, Other, NotKnown, Unset)
This enumeration identifies the types of fan arrangements for centrifugal fans.
FanRotation
IfcEnumeratedProperty
Pset_FanRotationEnum(Clockwise, CounterClockwise, Other, NotKnown, Unset)
This enumeration defines the types of fan rotation for centrifugal fans.
FanDriveArrangement
IfcEnumeratedProperty
Pset_FanDriveArrangementEnum(Arrangement1, Arrangement2, Arrangement3, Arrangement4, Arrangement5, Arrangement6, Arrangement7, Arrangement8, Arrangement9, Arrangement10, Other, NotKnown, Unset)
This enumeration defines the fan and motor drive arrangement as defined by AMCA.
DrivePowerLoss
IfcSimplePropertyWithUnit
IfcReal, PowerUnit
Fan drive power losses associated with the type of connection between the motor and the fan wheel (Data type = PowerMeasure)
MotorDriveType
IfcEnumeratedProperty
Pset_MotorDriveTypeEnum(DirectDrive, BeltDrive, Coupling, Other, NotKnown, Unset)
This enumeration identifies the type of connection between the motor shaft and the fan wheel.
DriveInAirstream
IfcSimpleProperty
Boolean value to identify if the fan drive is in the airstream. TRUE = Yes, FALSE = No.
FanMountingType
IfcEnumeratedProperty
Pset_FanMountingTypeEnum(ManufacturedCurb, FieldErectedCurb, ConcretePad, Suspended, Other, NotKnown, Unset)
This enumeration identifies different methods of mounting a fan in a building.
SoundPowerLevel
IfcObjectReference
IfcGloballyUniqueId, Pset_SoundPressureLevels
Reference to a property set Pset_SoundPowerLevels which contains sound power level data
Motor
IfcObjectReference
IfcGloballyUniqueId, IfcFlowEquipment
Reference to an IfcEquipment object of type Motor which cointains information about the Fan Motor.
|
Typed Object |
PropertySet Diagram |
Definition from IAI:
HISTORY: New property set in IFC Release 2.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
CommonPlumbingFixtureProperties
IfcObjectReference
IfcGloballyUniqueId, Pset_PlumbingFixtureCommon
Reference to the SharedPropertySet (Pset_PlumbingFixtureCommon). Contains the shared values for this type -- of properties that are stored for all types of Plumbing Fixtures.
Definition from IAI: A fluid typically utilized within HVAC systems.
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Name
IfcSimpleProperty
The name of the fluid
Description
IfcSimpleProperty
A description of the fluid
BoilingPoint
IfcSimpleProperty
The boiling point of the fluid
FreezingPoint
IfcSimpleProperty
The freezing point of the fluid
Density
IfcSimplePropertyWithUnit
IfcReal, MassDensityUnit
The density of the fluid (Data type = MassDensityMeasure)
Viscosity
IfcSimplePropertyWithUnit
IfcReal, DynamicViscosityUnit
The viscosity of the fluid (Data type = DynamicViscosityMeasure)
HeatCapacity
IfcSimplePropertyWithUnit
IfcReal, HeatCapacityMeasure
The heat capacity of the fluid (Data type = HeatCapacityMeasure)
LatentHeat
IfcSimplePropertyWithUnit
IfcReal, LatentHeatMeasure
The latent heat of the fluid (Data type = LatentHeatMeasure)
Definition from IAI: A fluid mover is equipment that imparts mechanical work on a fluid (e.g., pump, fan).
HISTORY: New property set in IFC Release 1.0.
ISSUES: No issues to date.
Property Name
Property Type
Data or Rel. Type
Definition
Fluid
IfcObjectReference
IfcGloballyUniqueId, Pset_Fluid
Reference to the Pset_Fluid property set which contains information about the fluid
FluidFlowrate
IfcSimplePropertyWithUnit
IfcReal, VolumetricFlowrateUnit
Nominal fluid flow rate (Data type = VolumetricFlowrateMeasure)
WorkingPressure
IfcSimplePropertyWithUnit
IfcReal, PressureUnit
Working total pressure differential (Data type = PressureMeasure)
OperatingEfficiency
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Operating efficiency of the fluid mover at the design flow rate (Data type = PercentMeasure)
MinimumEfficiency
IfcSimplePropertyWithUnit
IfcReal, PercentMeasure
Minimum efficiency of the fluid mover throughout the operating range (Data type = PercentMeasure)
OperatingPower
IfcSimplePropertyWithUnit