10 Operation
10.3 During operation
WARNING
Danger of injury through rotating parts.
► Ensure that the coupling protection is mounted.
ATTENTION
Dry running can damage pump equipment.
► Ensure that the pump and the connected pipe system are filled properly.
► If the pump does not deliver after 10 – 15 seconds, abort commissioning.
Requirement:
ü
Pump unit set up correctly
ü
Coupling aligned correctly
Ä
ü
Connections connected sealingly
ü
Motor connected correctly
ü
Pipe system is free of impurities
ü
Safety valve in accordance with EN ISO 4126-1 installed in the pressure-side pipe system before
the first shut-off device
ü
Pump filled with pumped liquid
ü
Shut-off devices in the suction line and pressure line opened
1.
Switch on the pump unit.
ð
The pump delivers when the pressure on the pressure side of the pump rises or a flow indic-
ator at the system side triggers.
2.
If the pump does not deliver after 10 – 15 seconds of operation, abort commissioning. Eliminate
the cause for the fault and only then continue with commissioning. Take the information from the
fault table into account
3.
Run the pump for a few minutes to allow the pipe system to vent fully.
ð
The pipe system is fully vented when the pump operating noise is smooth and a pressure
gauge on the pressure side shows no more fluctuations.
4.
Check the function of the overflow valve
10.3 During operation
10.3.1
Checking the operating pressure
Personnel qualification:
o
Trained personnel
bar
bar
Fig. 10: Pressure gauge shut-off valves closed/open - principle diagram
ATTENTION
Leak in the pressure gauge through permanently opened pressure gauge shut-off valve.
► Close the pressure gauge shut-off valve immediately after completing reading.
1.
Open the pressure gauge shut-off valve.
2.
Read the operating pressure and close the pressure gauge shut-off valve.
Operating instructions
OIC 01en-GB Edition 2019-11
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