Min disc installation
– for desired minimum air flow
- Turn the ventilator disc anti-clockwise from the default position and unscrew it.
- Fit min discs to the required gap on the disc holder and add 2 mm (the disc tabs should run in the groove of the disc holder).
- Min discs are available in 2 mm and 4 mm thickness. A 4 mm disc gives a 2 mm gap. A 4 mm + a 2 mm disc give a 4 mm gap.
- Screw on the ventilator disc to the default position.