7.5.3.13 IfcCoil

Bobine
Heiz-Kühlelemente

A coil is a device used to provide heat transfer between non-mixing media. A common example is a cooling coil, which utilizes a finned coil in which circulates chilled water, antifreeze, or refrigerant that is used to remove heat from air moving across the surface of the coil. A coil may be used either for heating or cooling purposes by placing a series of tubes (the coil) carrying a heating or cooling fluid into an airstream. The coil may be constructed from tubes bundled in a serpentine form or from finned tubes that give a extended heat transfer surface.

Coils may also be used for non-airflow cases such as embedded in a floor slab.

HISTORY  New entity in IFC4

Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Object Typing

The Object Typing concept applies to this entity as shown in Table 462.
Type
IfcCoilType
IfcDistributionFlowElementType
IfcDistributionElementType

Table 462 — IfcCoil Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 463.
PredefinedTypeName
 Pset_CoilOccurrence
 Pset_CoilPHistory
 Pset_CoilTypeCommon
 Pset_CoilTypeHydronic
 Pset_SoundGeneration
 Pset_ElectricalDeviceCommon
 Pset_Condition
 Pset_EnvironmentalImpactIndicators
 Pset_EnvironmentalImpactValues
 Pset_ManufacturerOccurrence
 Pset_ManufacturerTypeInformation
 Pset_PackingInstructions
 Pset_ServiceLife
 Pset_Warranty

Table 463 — IfcCoil Property Sets for Objects



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 464.
Name
Qto_CoilBaseQuantities

Table 464 — IfcCoil Quantity Sets



Material Constituents

The Material Constituents concept applies to this entity as shown in Table 465.
NameDescription
CasingMaterial from which the casing is constructed.

Table 465 — IfcCoil Material Constituents



Port Nesting

The Port Nesting concept applies to this entity as shown in Table 466.
PredefinedTypeNameFlowTypeDescription
DXCOOLINGCOILRefrigerantInSINKREFRIGERATIONRefrigerant entering the coil.
DXCOOLINGCOILRefrigerantOutSOURCEREFRIGERATIONRefrigerant leaving the coil.
DXCOOLINGCOILAirInSINKAIRCONDITIONINGAir entering the surface of the coil.
DXCOOLINGCOILAirOutSOURCEAIRCONDITIONINGAir leaving the surface of the coil.
WATERCOOLINGCOILChilledWaterInSINKCHILLEDWATERChilled water entering the coil.
WATERCOOLINGCOILChilledWaterOutSOURCECHILLEDWATERChilled water leaving the coil.
WATERCOOLINGCOILAirInSINKAIRCONDITIONINGAir entering the surface of the coil.
WATERCOOLINGCOILAirOutSOURCEAIRCONDITIONINGAir leaving the surface of the coil.
WATERHEATINGCOILHeatingInSINKHEATINGHeated water entering the coil.
WATERHEATINGCOILHeatingOutSOURCEHEATINGHeated water leaving the coil.
WATERHEATINGCOILAirInSINKAIRCONDITIONINGAir entering the surface of the coil.
WATERHEATINGCOILAirOutSOURCEAIRCONDITIONINGAir leaving the surface of the coil.

Table 466 — IfcCoil Port Nesting




XSD Specification:

 <xs:element name="IfcCoil" type="ifc:IfcCoil" substitutionGroup="ifc:IfcEnergyConversionDevice" nillable="true"/>
 <xs:complexType name="IfcCoil">
  <xs:complexContent>
   <xs:extension base="ifc:IfcEnergyConversionDevice">
    <xs:attribute name="PredefinedType" type="ifc:IfcCoilTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcCoil
SUBTYPE OF IfcEnergyConversionDevice;
PredefinedType : OPTIONAL IfcCoilTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcCoilTypeEnum.USERDEFINED) OR ((PredefinedType = IfcCoilTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCHVACDOMAIN.IFCCOILTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Formal Propositions:

CorrectPredefinedType : Either the PredefinedType attribute is unset (e.g. because an IfcCoilType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
CorrectTypeAssigned : Either there is no coil type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcCoilType.

Inheritance Graph:

ENTITY IfcCoil
ENTITY IfcRoot
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcObjectDefinition
INVERSE
HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
Nests : SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy : SET OF IfcRelNests FOR RelatingObject;
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy : SET OF IfcRelAggregates FOR RelatingObject;
Decomposes : SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcObject
ObjectType : OPTIONAL IfcLabel;
INVERSE
IsDeclaredBy : SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects;
Declares : SET OF IfcRelDefinesByObject FOR RelatingObject;
IsTypedBy : SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects;
IsDefinedBy : SET OF IfcRelDefinesByProperties FOR RelatedObjects;
ENTITY IfcProduct
ObjectPlacement : OPTIONAL IfcObjectPlacement;
Representation : OPTIONAL IfcProductRepresentation;
INVERSE
ReferencedBy : SET OF IfcRelAssignsToProduct FOR RelatingProduct;
ENTITY IfcElement
Tag : OPTIONAL IfcIdentifier;
INVERSE
FillsVoids : SET [0:1] OF IfcRelFillsElement FOR RelatedBuildingElement;
ConnectedTo : SET OF IfcRelConnectsElements FOR RelatingElement;
IsInterferedByElements : SET OF IfcRelInterferesElements FOR RelatedElement;
InterferesElements : SET OF IfcRelInterferesElements FOR RelatingElement;
HasProjections : SET OF IfcRelProjectsElement FOR RelatingElement;
ReferencedInStructures : SET OF IfcRelReferencedInSpatialStructure FOR RelatedElements;
HasOpenings : SET OF IfcRelVoidsElement FOR RelatingBuildingElement;
IsConnectionRealization : SET OF IfcRelConnectsWithRealizingElements FOR RealizingElements;
ProvidesBoundaries : SET OF IfcRelSpaceBoundary FOR RelatedBuildingElement;
ConnectedFrom : SET OF IfcRelConnectsElements FOR RelatedElement;
ContainedInStructure : SET [0:1] OF IfcRelContainedInSpatialStructure FOR RelatedElements;
ENTITY IfcDistributionElement
INVERSE
HasPorts : SET OF IfcRelConnectsPortToElement FOR RelatedElement;
ENTITY IfcDistributionFlowElement
INVERSE
HasControlElements : SET [0:1] OF IfcRelFlowControlElements FOR RelatingFlowElement;
ENTITY IfcEnergyConversionDevice
ENTITY IfcCoil
PredefinedType : OPTIONAL IfcCoilTypeEnum;
END_ENTITY;

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