IfcAirToAirHeatRecoveryType

Definition from buildingSMART: The element type IfcAirToAirHeatRecoveryType defines a list of commonly shared property set definitions of an air-to-air heat recovery device and an optional set of product representations. It is used to define an air-to-air heat recovery device 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.

An air-to-air heat recovery type is used to define the common properties of an air-to-air heat recovery device that may be applied to many occurrences of that type. An air-to-air heat recovery device is typically used to transfer heat from warmer air in one chamber to cooler air in the second chamber (i.e., typically used to recover heat from the conditioned air being exhausted and the outside air being supplied to a building). Air-to-air heat recovery types may be exchanged without being already assigned to occurrences.

The occurrences of the IfcAirToAirHeatRecoveryType are represented by instances of IfcEnergyConversionDevice 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_AirToAirHeatRecoveryTypeCommon: common property set for all air-to-air heat recovery types

HISTORY: New entity in IFC Release 2x2.

EXPRESS specification:

Attribute definitions:

Inheritance graph