Preventing Material Damage; Dry Running; Cavitation; Overheating - aqua technix AQ 280 Traduction Du Instruction D'utilisation Originale

Safety
Seized pump
If a pump seizes, and is switched on several times repeatedly, the
motor can be damaged. Observe the following points:
 Do not switch the pump/unit on repeatedly.
Turn the motor shaft by hand. See point 5.1 on page 21.

 Clean pump.
2.9

Preventing material damage

2.9.1

Dry running

If run dry, mechanical seals and synthetic parts can be destroyed
within only a few seconds.
Do not allow the pump to run dry. This also applies to

checking the rotation direction.
 Purge air from pump and suction line prior to start-up.
2.9.2

Cavitation

Pipes which are too long increase resistance. This results in risk
of cavitation.
 Observe the maximum pipe length.
2.9.3

Overheating

The following factors can result in the pump overheating:
• Ambient temperature which is too high
 Do not exceed the permitted ambient temperature of 40 °C.
2.9.4

Blockages in the pump

Pieces of dirt in the suction line can clog and block the pump.
 Do not operate the pump without a strainer basket or a
strainer basket handle.
 Check how easily the pump rotates before starting it up and
after longer idle or storage periods.
2.9.5

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.
10 EN 06|2019