Issue
Xenta 102-B nviManOverride allows for flow or percentage overrides. But since this controller is intended to be used along with a Belimo flow controller/actuator, how do these modes of operation differ?
Environment
Xenta 102-B
Cause
Flow control is not actually an option for this controller. Flow values will be interpreted as desired percentages of airflow.
Resolution
nviManOverride.state = HVO_PERCENT, nviManOverride.percent = 35%
The controller fixes the Airflow output (Y1) at 35% (3.5V)
nviManOverride.state= HVO_FLOW_VALUE
All of the flow values are actually being treated as percentages ... there is no way to set it to a desired flow. (nviManOverride.flow X nciNomFlow / 100) is limited to 0-100% and sent to the Airflow output (Y1).
Emergency Override can override these setting, as can setting the controller to slave mode (the overrides would have to be performed on the master controller in that setting).
The way to release these states is to set the nviManOverride.state to any value other than HVO_PERCENT or HVO_FLOW_VALUE. Those are the only two values accounted for in the logic.
