IfcFanType

Definition from IAI: The element type IfcFanType defines a list of commonly shared property set definitions of a fan and an optional set of product representations. It is used to define a fan specification (i.e. the specific product information, that is common to all occurrences of that product type).

> NOTE: The product representations are defined as representation maps (at the level of the supertype IfcTypeProduct, which get assigned by an element occurrence instance through the IfcShapeRepresentation.Item[1] being an IfcMappedItem.

A Fan type is used to define the common properties of a fan that may be applied to many occurrences of that type. A fan is a device which imparts mechanical work on a gas. A typical usage of a fan is to induce airflow in a building services air distribution system. Fan types (or the instantiable subtypes) may be exchanged without being already assigned to occurrences.

The occurrences of the IfcFanType are represented by instances of IfcFlowMovingDevice or its subtypes.

Property Set Use Definition:

The property sets relating to this entity are defined by the IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to this entity are part of this IFC release:

- Pset_FanTypeCommon: common property set for all fan types

- Pset_FanTypeSmokeControl: property set for all fan types that are part of a smoke control system

> HISTORY: New entity in IFC Release 2x2.

EXPRESS specification:

ENTITY IfcFanType
SUBTYPE OF ( | IfcFlowMovingDeviceType);
PredefinedType | : | IfcFanTypeEnum;
WHERE
WR1 | : | (PredefinedType <> IfcFanTypeEnum.USERDEFINED) OR ((PredefinedType = IfcFanTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));
END_ENTITY;

Attribute definitions:

PredefinedType | : | Defines the type of fan typically used in building services.

Inheritance graph

ENTITY IfcFanType;
ENTITY IfcRoot;
GlobalId | : | IfcGloballyUniqueId;
OwnerHistory | : | IfcOwnerHistory;
Name | : | OPTIONAL IfcLabel;
Description | : | OPTIONAL IfcText;
ENTITY IfcObjectDefinition;
INVERSE
HasAssignments | : | SET OF IfcRelAssigns FOR RelatedObjects;
IsDecomposedBy | : | SET OF IfcRelDecomposes FOR RelatingObject;
Decomposes | : | SET [0:1] OF IfcRelDecomposes FOR RelatedObjects;
HasAssociations | : | SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcTypeObject;
ApplicableOccurrence | : | OPTIONAL IfcLabel;
HasPropertySets | : | OPTIONAL SET [1:?] OF IfcPropertySetDefinition;
INVERSE
ObjectTypeOf | : | SET [0:1] OF IfcRelDefinesByType FOR RelatingType;
ENTITY IfcTypeProduct;
RepresentationMaps | : | OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;
Tag | : | OPTIONAL IfcLabel;
ENTITY IfcElementType;
ElementType | : | OPTIONAL IfcLabel;
ENTITY IfcDistributionElementType;
ENTITY IfcDistributionFlowElementType;
ENTITY IfcFlowMovingDeviceType;
ENTITY IfcFanType;
PredefinedType | : | IfcFanTypeEnum;
END_ENTITY;