Kongskilde AIR WASH 50 Manuel D'utilisation page 11

Controls
No controls system is supplied
with the unit. Basically, the system
is only demanding start and stop
functions.
If case the motors in the system
stop simultaneously, there is a risk
that some material due to the after
run (from the inertia) on the blower
will be vacuumed into the cyclone
and not discharged. The rotary
valve beneath the cyclone will stop
immediately after switch off of the
power, which could cause some
material to be accumulated in the
system. To avoid this situation to
happen, a sequence system should
be added into a control system in
a way that first the blower motor is
switched off and approx. 1-2 min-
utes later, the rotary valve motor is
switched off.
11