KRAL KV - 10.3 During operation

10 Operation
10.3 During operation
WARNING
Hot surface.
Touching of uninsulated hot surfaces results in burns.
► Insulate components and pipings in which hot liquids (>60°C) flow before commissioning.
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 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 Ä Troubleshooting,Page38.
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 Ä During operation,Page24.
10.3 During operation
10.3.1 Checking the operating pressure
Personnel qualification: o Trained personnel
barbar
Fig.9: Pressure gauge shut-off valves closed/open - principle diagram
DANGER
Magnetic field.
Risk of death for persons with cardiac pacemaker, metallic implant or neurostimulator.
► Under no circumstances may persons with cardiac pacemakers, metallic implant or
neurostimulator perform work on the pump station.
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.
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OIK 09en-GB Edition 2019-11
Operating instructions