AFA4000/E VAV Airflow Controller / p.166
9. Auxiliary features and connections
9.1 Dual set point (occupancy) operation
The Dual Set Point function operates with a PIR occupancy sensor, enabling the controller to
operate to a lower Econ control velocity set point and reduced alarm points when the fume
cupboard is unoccupied.
When the dual set point function is active, the controller displays High Set Point, Low Set Point
or Manual above the output status bar graph, indicating the current occupancy condition.
Figure 73: Typical connection diagram
Press the ↑ and ↓ arrows to scroll through the menu list and press Mute to select the required
option.
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