Installation and Operating Instructions
ABS submersible sewage pump AFP 0831S and 0841S
.3.2
Checking direction of rotation
m
The safety hints in the previous sections must be observed!
When three phase units are being commissioned for the first time and also when used on a new site, the
direction of rotation must be carefully checked by a qualified person.
m
When checking the direction of rotation, the unit should be secured in such a manner that no danger
to personnel is caused by the rotating impeller, or by the resulting air flow. Do not place your hand into
the hydraulic system!
c
The direction of rotation should only be altered by a qualified person.
m
When carrying out the direction of rotation check as well as when starting the unit pay attention to the
START REACTION
. This can be very powerful
ATTENTION
The direction of rotation is correct
if the impeller/propeller rotates in
a clockwise manner when viewing
down from the top of the placed
unit
1020-00
ATTENTION
The start reaction is
anti clockwise
Rotor rotation
NOTE
If a number of pumps are connected to a single control panel then each unit must be
individually checked.
ATTENTION
The mains supply to the control panel should have a clockwise rotation. If the leads
are connected in accordance with the circuit diagram and lead designations, the
direction of rotation will be correct.
.3.3
Changing direction of rotation
m
The safety hints in the previous sections must be observed!
c
The direction of rotation should only be altered by a qualified person.
If the direction of rotation is incorrect then this is altered by changing over two phases of the power supply cable
in the control panel. The direction of rotation should then be rechecked
NOTE
The direction of rotation measuring device monitors the direction of rotation of the
mains supply or that of an emergency generator