AirFlowCalculator

The AirFlowCalculator component is used to calculate the airflow based on the measurement of the pressure difference and the K-factor. Additionally, it allows airflow calibration of the calculated airflow by recalculating the initial K-factor value.

The AirFlowCalculator component has the following slots:

• Status: informs about the status of the component; if one of the inputs (K-Factor/Differential Pressure/Airflow Calibration) has a null value then the status is fault, otherwise it is OK;

  • Available statues: OK, Fault, Disabled, Unlicensed, Down, Error;

• Calibration Status: shows a calibration status of the airflow; if the calculated K-factor changes, the Calibration Status will indicate that the airflow is calibrated;

• Actual Airflow: shows the calculated airflow value based on the differential pressure and the K-factor;

• Calculated K-Factor: shows the calculated K-Factor based on the differential pressure and calibrated airflow input;

• K-Factor: allows to set a correct value for a specific type of VAV from the BMS or local room panel; can be updated by the Calculated K-Factor value by a trigger action from application;

• Differential Pressure: receives a differential pressure value from the pressure transducer;

• Airflow Calibration: specifies a measured airflow value during the balancing process from the BMS or local room panel; this value must be reset to zero via link once the airflow calibration is completed;

• Unit Selector: allows to set the unit type.

More

More on the airflow control as used in the VAV application: Airflow