Flat Suction Function; Additional Ventilation - Zehnder Vectis Série Mode D'emploi

4.3 Flat suction function

By means of the flat suction function, you can pump off up to a 5 mm residual water depth.
- use a slot screwdriver to lever off the bottom screen
- mount the float locking mechanism as described on Page 16
- ensure that no water is in the suction line any more
- on its supporting feet, place the pump into the medium
- in order to enable ventilation of the pump, there must be an initial water level of at least 50 mm

4.4 Additional ventilation

At the side of the pump, there is the additional ventilation screw, which should be removed when the
pump is used in stationary applications and/or heavily polluted medium shall be conveyed. The
distance of the screw protects the ventilation against contamination and can prolong the maintenance
and cleaning cycles.
4.5 Increase of the maximum grain size (only for VECTIS 600 and VECTIS 800)
Grain size is referred to as the maximum size of particles which can be transported by means of the
pump without the pump being clogged.
In order to achieve the maximum grain size (20 mm), you must remove the bottom screen and mount
the enclosed attachment feet.
(VECTIS 400 only)
19
Ventilation
Additional ventilation screw
E