Supply chain extract air volume flow deviation (SplyAflDvnEx11)
Overview
The application function "Supply chain extract air volume flow deviation evaluation 11" (SplyAflDvnEx11) helps to optimize the central AHU fan speed by calculating the air flow deviation of the extract VAV dampers.
Function
The deviation signals of the extract VAV controllers from the room segments are collected.
Air flow deviation is calculated as: ((setpoint flow – measured flow) / setpoint flow)) x 100 [%]
The 10 highest deviations are evaluated and the average is used for fan speed optimization.
For monitoring, the number of deviations between 5...20% are counted.
Configuration
None
Interface
Interface | Description | Type | Ref. | Owned by |
|---|---|---|---|---|
AirFlDvnExMax | Maximum of extract air volume flow deviation | ACalcVal | ● | - |
NumAirFlDvnEx | Number of extract air volume flow deviation | ACalcVal | ● | - |
SplyAirMst | Manager for supply chain air | GrpMaster | ◉ | SplyAir11 |
Engineering and commissioning
None