IfcAirTerminalTypeEnum

Item	SPF	XML	Change
IFC2x3 to IFC4
IfcAirTerminalTypeEnum
LOUVRE			ADDED
EYEBALL	X	X	DELETED
IRIS	X	X	DELETED
LINEARGRILLE	X	X	DELETED
LINEARDIFFUSER	X	X	DELETED

Semantic definitions at the type

Type definition

Enumeration defining the functional types of air terminals.

NOTE Architectural louvres within doors or windows are defined by IfcPermeableCoveringProperties.

HISTORY New enumeration in IFC2x2. Modified in IFC4 to add LOUVRE and remove EYEBALL, IRIS, LINEARGRILLE, LINEARDIFFUSER.

Enumeration definition

Constant	Description
DIFFUSER	An outlet discharging supply air in various directions and planes.
GRILLE	A covering for any area through which air passes.
LOUVRE	A rectilinear louvre.
REGISTER	A grille typically equipped with a damper or control valve.
USERDEFINED	User-defined air terminal type.
NOTDEFINED	Undefined air terminal type.

Formal representations

XSD Specification

 <xs:simpleType name="IfcAirTerminalTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="diffuser"/>

   <xs:enumeration value="grille"/>

   <xs:enumeration value="louvre"/>

   <xs:enumeration value="register"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcAirTerminalTypeEnum = ENUMERATION OF (

 DIFFUSER, 
 GRILLE, 
 LOUVRE, 
 REGISTER, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

	Air Terminal Type Enum
	Énumération des types d'entrée/sortie d'air