AFA4000/1 Airflow Monitor / p.92
For 1 position operation:
When only the lower position is required (for example,
close only), press ↑ / ↓ together to quit.
For 2 position operation:
Set the sash to the normal working height (for
example, 500 mm) and press Mute.
Press ↑ / ↓ together to quit, when only 2 positions
(lower and middle) are required.
For 3 position operation:
Set the sash to the full opening height (for example,
750 mm) and press Mute.
The lower, middle and top positions are now
calibrated. Press Mute to quit calibration mode.
15. Use the ↓ button and select Back to Set up menu, then press Mute.
16. Use the ↓ button and select Exit and Save Changes, then press Mute.
17. The controller now enters Run mode.
7.2.1 Calibration notes
The sash may slightly over-run past the calibration points, when the sash motor drive is
set to a fast speed. When calibrating the sash positions, allow a margin for the sash to
over-travel past the calibration height.
For example, before calibrating the lower position, fully close the sash and then open it
by 5 mm, or before calibrating the middle position, open the sash to the normal height
and then lower it by 5 mm.
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