BADU JET Smart, Translation Of Original Operation Manual

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Safety
06|2020 EN 13
2.9.3 Cavitation
Incorrect configuration of the pipe dimensions and non-
observance of the prescribed mounting depth can cause
cavitation.

If the distance between the pump and the main housing is
great, ensure an almost loss-free flow when configuring the
pipes.
 Observe the prescribed mounting depth of 25 cm.
 Ensure that the suction line does not leak.
 Open the valves completely.
2.9.4 Overheating
The following factors can result in the pump overheating:
• Excessive
pressure on the delivery side.
• Motor overload switch set incorrectly.
• Ambient temperature which is too high.
 Do not operate the pump with the valves closed, minimum
flow rate 10 % of Q
max
.
 For pumps with a three-phase motor, install a built-in or
external overload switch and set it correctly.
 Do not exceed the permitted ambient temperature of 40 °C.
2.9.5 Pressure surges
Valves which close suddenly can cause pressure surges which far
exceed the maximum permissible housing pressure of the pump.
 Avoid valves which close suddenly or, if present, close them
slowly.
2.9.6 Blockages in the pump
Pieces of dirt in the suction line can clog and block the pump.

Remove foreign matter (branches, leaves, clothes, ...) from
the suction opening.

Check how easily the pump rotates before starting it up and
after longer idle or storage periods.
2.9.7 Drainage
An insufficient drain gap can damage the motor.
 Do not block or seal the drain gap between the pump
housing and the motor.
2.9.8 Risk of frost

Drain the pump/unit and pipes at risk of freezing in plenty of
time.

Remove the pump/unit during periods of frost and store it in a
dry room.