Speck pumpen BADU 42 Manual De Instrucciones página 57

2.9.5 Pressure surges
Valves which close suddenly can cause pressure surges which exceed
the maximum permissible housing pressure of the pump by far.
2.9.6 Blockages of the pump
Pieces of dirt in the suction line can clog and block the pump.
2.9.7 Drain gap
An insufficient drain gap can damage the motor.
2.9.8 Chance of frost
06/2014 VG 766.2000.055
Install shock absorber or air vessel.
Do not operate a pump without a strainer basket or a strainer basket
handle.
Check how easily the pump rotates before starting it up after longer
idle or storage periods.
Do not block or seal the drain gap between the pump housing and
the motor.
Empty pump and pipes sensitive to frost before temperatures drop
below freezing.
2 Safety
EN 37