Pressure Surges; Blockages In The Pump; Drainage; Chance Of Frost - BADU 90 Eco Motion Pumpendatenblatt

Safety

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.
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2.9.5

Pressure surges

Valves which close suddenly can cause pressure surges which far
exceed the maximum permissible housing pressure of the pump.

Install shock absorber or air vessel.

Do not use valves which close abruptly.
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2.9.6

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.
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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.
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2.9.8

Chance of frost


Drain pump/unit and pipes sensitive to frost before
temperatures drop below freezing.
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2.9.9

Safe use of the product

Safe use of the product is no longer guaranteed in the following
instances:

If the pipework is not in proper condition.

If the pump seizes. See chapter 2.8 on page 10.

If protective devices are damaged or missing, e.g. protection
against accidental contact.

If there is stress on the pump/unit or pipes during installation.
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12 EN 10|2015