KSB Amarex N, Operating Manual

Page: 34 / 72

6 Commissioning/Start-up/Shutdown
34 of 72
Amarex N
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/start-up
6.1.1 Preconditions for commissioning/startup
DANGER
Fluid level too low
Explosion hazard!
Damage to the pump set!
▷
Completely prime the pump set with the fluid to be handled to reliably prevent
the formation of a potentially explosive atmosphere.
▷ Always operate the pump set in such a way that air cannot ingress into the
pump casing.
▷ Never allow the fluid level to drop below the specified minimum (R3).
(
ð
Section 6.2.4.2, Page 36)
▷ For continuous operation (S1) operate the pump in fully submerged condition.
Before starting up the pump set make sure that the following requirements are met:
▪ The pump set has been properly connected to the power supply and is equipped
with all protection devices.
▪ The pump has been primed with the fluid to be handled.
▪
The direction of rotation has been checked.
▪ The lubricant has been checked (only for versions YL and WL).
▪
After prolonged shutdown of the pump (set), the required activities have been
carried out.
(
ð
Section 6.4, Page 38)
6.1.2 Start-up
DANGER
Persons in the tank during pump operation
Electric shock!
▷ Never start up the pump set when there are persons in the tank.
CAUTION
Re-starting while motor is still running down
Damage to the pump set!
▷ Do not re-start the pump set before it has come to a standstill.
▷ Never start up the pump set while the pump is running in reverse.
ü The fluid level is sufficiently high.
CAUTION
Pump start-up against a closed shut-off element
Increased vibrations!
Damage to mechanical seals and bearings!
▷ Never operate the pump set against a closed shut-off element.
1.
Fully open the discharge line shut-off element, if any.
2.
Start up the pump set.