6 Commissioning/Start-up/Shutdown
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CHTRa
WARNING
Hot surfaces - Pump and piping take on the temperature of the fluid handled.
Risk of burns!
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Do not touch hot surfaces.
CAUTION
Excessive density of the fluid handled
Motor overload!
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Observe the information on fluid density in the data sheet.
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Make sure the motor has sufficient power reserves.
6.6 Operating limits
DANGER
Non-compliance with operating limits for pressure, temperature, fluid handled and
speed
Explosion hazard!
Hot or toxic fluid could escape!
▷
Comply with the operating data indicated in the data sheet.
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Never use the pump for handling fluids it is not designed for.
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Avoid prolonged operation against a closed shut-off element.
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Never operate the pump at temperatures, pressures or rotational speeds
exceeding those specified in the data sheet or on the name plate unless the
written consent of the manufacturer has been obtained.
DANGER
Formation of a potentially explosive atmosphere inside the pump
Explosion hazard!
▷
When draining tanks take suitable measures to prevent dry running of the
pump (e.g. fill level monitoring).
6.6.1 Frequency of starts
DANGER
Excessive surface temperature of the motor
Explosion hazard!
Damage to the motor!
▷
In case of explosion-proof motors, observe the frequency of starts specified in
the manufacturer's product literature.
CAUTION
Excessively high switching frequency
Damage to the balancing device!
▷
Do not exceed the values for the frequency of starts.
