Defined in File Ifc4x3_rc1.h
IfcAirTerminalBox: public Ifc4x3_rc1::IfcFlowController¶
An air terminal box typically participates in an HVAC duct distribution system and is used to control or modulate the amount of air delivered to its downstream ductwork. An air terminal box type is often referred to as an “air flow regulator”.
HISTORY New entity in IFC2x4
Type Use Definition IfcAirTerminalBox defines the occurrence of any air terminal box; common information about air terminal box types is handled by IfcAirTerminalBoxType. The IfcAirTerminalBoxType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcAirTerminalBoxType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcAirTerminalBoxType has ports or aggregated elements, such objects are reflected at the IfcAirTerminalBox occurrence using the IfcRelDefinesByObject relationship.
Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcAirTerminalBoxType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcAirTerminalBoxType.HasPropertySets. If both are given, then the properties directly defined at IfcAirTerminalBox override the properties defined at IfcAirTerminalBoxType. Refer to the documentation at the supertype IfcFlowController and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: Pset_AirTerminalBoxPHistory (PSET_PERFORMANCEDRIVEN) Pset_AirTerminalBoxTypeCommon (PSET_TYPEDRIVENOVERRIDE)
Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.
Material Use Definition The material of the IfcAirTerminalBox is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcAirTerminalBoxType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:
Body: The primary material from which the object is constructed.
Port Use Definition The distribution ports relating to the IfcAirTerminalBox are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the air terminal box occurrence is defined by IfcAirTerminalBoxType, then the port occurrences must reflect those defined at the IfcAirTerminalBoxType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcAirTerminalBox PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:
Inlet (AIRCONDITIONING, SINK): Incoming air. Outlet (AIRCONDITIONING, SOURCE): Outgoing regulated air.
Whether the optional attribute PredefinedType is defined for this IfcAirTerminalBox.
IfcAirTerminalBox(std::string v1_GlobalId, ::Ifc4x3_rc1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x3_rc1::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x3_rc1::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x3_rc1::IfcAirTerminalBoxTypeEnum::Value> v9_PredefinedType)¶