#### 7.1.4.43 Pset_UnitaryControlElementPHistory

PSET_PERFORMANCEDRIVEN / IfcUnitaryControlElement

| Properties for history and operating schedules of thermostats. HISTORY: Added in IFC4.

buildingSMART Data Dictionary

PSD-XML

- Temperature
  P_REFERENCEVALUE / IfcTimeSeries / IfcThermodynamicTemperatureMeasure

  | Temperature: Indicates the current measured temperature.

- Mode
  P_REFERENCEVALUE / IfcTimeSeries / IfcIdentifier

  | Mode: Indicates operation mode corresponding to Pset_UnitaryControlTypeCommon.Mode. For example, 'HEAT', 'COOL', 'AUTO'.

- Fan
  P_REFERENCEVALUE / IfcTimeSeries / IfcLogical

  | Fan: Indicates fan operation where True is on, False is off, and Unknown is automatic.

- SetPoint
  P_REFERENCEVALUE / IfcTimeSeries / IfcIdentifier

  | SetPoint: Indicates the temperature setpoint. For thermostats with setbacks or separate high and low setpoints, then the time series may contain a pair of values at each entry where the first value is the heating setpoint (low) and the second value is the cooling setpoint (high).

Link to this page