IFC 4.3.1.0 (IFC4X3_ADD1) development

6.2.4.1 Pset_AirSideSystemInformation

6.2.4.1.1 Semantic definition

Attributes that apply to an air side HVAC system.

6.2.4.1.2 Applicable entities

6.2.4.1.3 Properties

Name Property Type Data Type Description
Description IfcPropertySingleValue IfcText

The Description of the object.

AirSideSystemType IfcPropertyEnumeratedValue PEnum_AirSideSystemType

This enumeration specifies the basic types of possible air side systems (e.g., Constant Volume, Variable Volume, etc.).

AirSideSystemDistributionType IfcPropertyEnumeratedValue PEnum_AirSideSystemDistributionType

This enumeration defines the basic types of air side systems (e.g., SingleDuct, DualDuct, Multizone, etc.).

TotalAirFlow IfcPropertySingleValue IfcVolumetricFlowRateMeasure

No description available.

EnergyGainTotal IfcPropertySingleValue IfcPowerMeasure

The total amount of energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level total energy gains.

AirFlowSensible IfcPropertySingleValue IfcVolumetricFlowRateMeasure

No description available.

EnergyGainSensible IfcPropertySingleValue IfcPowerMeasure

The sum of total energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level sensible energy gains.

EnergyLoss IfcPropertySingleValue IfcPowerMeasure

The sum of energy losses for the spaces served by the system during the peak heating conditions.

InfiltrationDiversitySummer IfcPropertySingleValue IfcPositiveRatioMeasure

Diversity factor for Summer infiltration.

InfiltrationDiversityWinter IfcPropertySingleValue IfcPositiveRatioMeasure

Diversity factor for Winter infiltration.

ApplianceDiversity IfcPropertySingleValue IfcPositiveRatioMeasure

Diversity of appliance load.

HeatingTemperatureDelta IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Heating temperature difference for calculating space air flow rates.

CoolingTemperatureDelta IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Cooling temperature difference for calculating space air flow rates.

Ventilation IfcPropertySingleValue IfcVolumetricFlowRateMeasure

Required outside air ventilation.

FanPower IfcPropertySingleValue IfcPowerMeasure

Fan motor loads contributing to the cooling load.

Table 6.2.4.1.A

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6.2.4.1.4 Changelog

6.2.4.1.4.1 IFC4

6.2.4.1.4.2 IFC4.3_DEV_9f90c1f0

  • applicability, IfcSpatialElement
  • property, AirFlowSensible
  • property, TotalAirFlow
  • applicability, IfcSpace
  • property, AirflowSensible
  • property, LightingDiversity
  • property, LoadSafetyFactor
  • property, Name
  • property, TotalAirflow
  • property Description, Changed from "single IfcLabel" to "single IfcText"