If there is no increase of delivery head after commissioning:
1.
Switch off the pump.
2.
Again vent the pump (system).
3.
Repeat steps 7 to 10 and note section on Disruptions and Assistance for
Disposal .
7.3.3 Functional testing of the mechanical seal
Perform the following steps:
1.
Inspect the pump and check whether liquid exits at the mechanical seal.
An intact mechanical seal operates virtually without any leakage.
If pumped fluid or flushing fluid exits:
1.
Switch off the pump.
2.
Replace the mechanical seal.
Follow the installation instructions Section 10.2, Page 48.
7.4 Operation with control unit for pumps on trolley
Pumps on a trolley are equipped with a control unit for switching the pump on and
off.
Depending on the equipment, an alternating sense of rotation can be set via the
control unit.
For pumps supplied without a motor, the selection of the control panel switches
must be chosen to match the amperage and voltage of the motor.
The switches must be connected according to the switch manufacturer's data
sheets.
Caution!
Damage to property due to changing the sense of rotation too quickly
If the sense of rotation is changed before the rotors have come to a
standstill, the pump may be overloaded.
► When changing the sense of rotation, first switch off the pump (switch
position 0) and allow the rotors to come to a complete standstill.
Commissioning
Operation with control unit for pumps on trolley
BA.280.YYY.001.GB_4
40 21.02.2022
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