Speck pumpen IN Series, Оригинальное руководство по установке и эксплуатации

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Malfunction Possible cause Possible solution/ Other information
elimination
Thermal motor protection Switch on again if Make sure the correct
device has tripped necessary. Contact a value has been set.
qualified electrician if The correct value
this problem continues (I
nom
) can be found
on the motor rating
plate
The motor is running The pump shaft is Replace shaft and
but the pump is not defective seals
functioning
The coupling is loose Tighten the bolts to the
recommended torque
(Point 10)
Pump is delivering Suction and/or Open both shut-off
too little flow and/or pressure valve is closed valves
pressure
There is air in the Vent the pump
pump
The inflow pressure is
Increase the inflow
insufficient pressure
The pump is rotating in Swap L1 and L2 of the
the wrong direction three-phase current supply
The suction pipe has Vent the suction pipe
not been vented
Air bubble in the
Install the suction pipe
suction pipe rising away from the
pump
The pump is sucking Repair suction pipe
air due to a leak in the
suction pipe
The diameter of the
Increase the diameter
suction pipe is too small of the suction pipe
The flow through the Increase the flow
water meter in the
supply pipe is too slow
The foot valve is blocked
Clean the foot valve
The impeller or diffuser Clean the inside of the
is blocked pump
O-ring is not resistant Replace the O-ring
against the pumped with an O-ring of a
medium suitable material
After switching off Leaks in the suction Check suction pipe
the pump rotates in pipe
the opposite
Foot and non-return Replace valves
direction
valve defective
Foot valve blocked in
Clean or replace
an open position
Note: The nuts of the connecting bolts must be tightened evenly and crosswise. Ensure the permitted torque with a torque
wrench.
Torque
IN-VB 2/4/6 : 12 Nm IN-V 32/45/65 : 70 Nm
IN-VB 10/15 : 25 Nm IN-VB 85 : 70 Nm