IFC 4.3.0.1 (IFC4X3) development

5.4.4.24 Pset_SpaceHVACDesign

5.4.4.24.1 Semantic definition

Properties for HVAC requirements for spaces.

5.4.4.24.2 Applicable entities

5.4.4.24.3 Properties

Name Property Type Data Type Description
TemperatureSetPoint IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

The temperature setpoint range and default setpoint.

TemperatureMax IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Maximal temperature of the space or zone, that is required from user/designer view point. If no summer or winter space temperature requirements are given, it applies all year, otherwise for the intermediate period.

TemperatureMin IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Minimal temperature of the space or zone, that is required from user/designer view point. If no summer or winter space temperature requirements are given, it applies all year, otherwise for the intermediate period.

TemperatureSummerMax IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Maximal temperature of the space or zone for the hot (summer) period, that is required from user/designer view point and provided as requirement for cooling.

TemperatureSummerMin IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Minimal temperature of the space or zone for the hot (summer) period, that is required from user/designer view point and provided as requirement for cooling.

TemperatureWinterMax IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Maximal temperature of the space or zone for the cold (winter) period, that is required from user/designer view point and provided as requirement for heating.

TemperatureWinterMin IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Minimal temperature of the space or zone for the cold (winter) period, that is required from user/designer view point and provided as requirement for heating.

HumiditySetPoint IfcPropertySingleValue IfcPositiveRatioMeasure

Humidity of the space or zone that is required from user/designer view point. If no summer or winter space humidity requirements are given, it applies all year, otherwise for the intermediate period. Provide this property, if no humidity range (Min-Max) is available.

HumidityMax IfcPropertySingleValue IfcPositiveRatioMeasure

Maximal permitted humidity of the space or zone that is required from user/designer view point. If no summer or winter space humidity requirements are given, it applies all year, otherwise for the intermediate period.

HumidityMin IfcPropertySingleValue IfcPositiveRatioMeasure

Minimal permitted humidity of the space or zone that is required from user/designer view point. If no summer or winter space humidity requirements are given, it applies all year, otherwise for the intermediate period.

HumiditySummer IfcPropertySingleValue IfcPositiveRatioMeasure

Humidity of the space or zone for the hot (summer) period, that is required from user/designer view point and provided as requirement for cooling.

HumidityWinter IfcPropertySingleValue IfcPositiveRatioMeasure

Humidity of the space or zone for the cold (winter) period that is required from user/designer view point and provided as requirement for heating.

DiscontinuedHeating IfcPropertySingleValue IfcBoolean

Indication whether discontinued heating is required/desirable from user/designer view point. (TRUE) if yes, (FALSE) otherwise.

NaturalVentilation IfcPropertySingleValue IfcBoolean

Indication whether the space is required to have natural ventilation (TRUE)

NaturalVentilationRate IfcPropertySingleValue IfcCountMeasure

Indication of the requirement of a particular natural air ventilation rate, given in air changes per hour.

MechanicalVentilation IfcPropertySingleValue IfcBoolean

Indication whether the space is required to have mechanical ventilation (TRUE).

MechanicalVentilationRate IfcPropertySingleValue IfcCountMeasure

Indication of the requirement of a particular mechanical air ventilation rate, given in air changes per hour.

AirConditioning IfcPropertySingleValue IfcBoolean

Indication whether this space requires air conditioning provided (TRUE) or not (FALSE).

AirConditioningCentral IfcPropertySingleValue IfcBoolean

Indication whether the space requires a central air conditioning provided (TRUE) or not (FALSE). It should only be given, if the property "AirConditioning" is set to TRUE.

AirHandlingName IfcPropertySingleValue IfcLabel

The name of the air side system.

IfcRelServicesBuildings should be used to reference the correct AirHandlingSystem (IfcSystem)

Table 5.4.4.24.A

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5.4.4.24.4 Changelog

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