Overheating; Pressure Surges; Blockages Of The Pump; Drain Gap - Speck pumpen BADU Jet PRIMAVERA Installation

2 Safety
2.9.4

Overheating

The following factors can result in the pump overheating:
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2.9.5

Pressure surges

Valves which close suddenly can cause pressure surges which by far
exceed the maximum permissible housing pressure of the pump.
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2.9.6

Blockages of the pump

Pieces of dirt in the suction line can clog and block the pump.
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2.9.7

Drain gap

An insufficient drain gap can damage the motor.
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2.9.8

Danger of frost

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56 EN VG 766.2320.050
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.
Install the motor overload switches and set them correctly.
Do not exceed the permitted ambient temperature of 40 °C.
Avoid valves which close suddenly.
Remove foreign matter (branches, leaves, clothes, etc.) from the
suction opening if necessary.
Check how easily the pump rotates before starting it up after long
idle or storage periods.
Do not block or seal the small opening between the pump housing
and the motor.
Drain pump and pipes sensitive to frost before temperatures drop
below freezing.
12/2014