ENGLISH
13
Pump with single-phase current motor (1~230V):
• Single-phase current connection (EM): The motor is already
factory-wired to the terminal box. The mains connection is
made via terminals L, N, PE.
• In acc. with DIN EN / IEC 61000-3-11 the pump is to be pro-
vided with a rating of 1.5 kW for operation in a power supply
with a system impedance Z
max
on a line connection of max.
0.125 (0.086) Ohm at a maximum number of 6 (20) switching
operations.
If the supply impedance and the number of switching opera-
tions per hour exceed the above-mentioned values, the pump
can lead to transient voltage reductions and interfering volt-
age fluctuations, or “flicker“, because of the unfavourable
supply conditions.
Measures may therefore be required before the pump can be
operated properly on this connection; relevant information is
to be obtained from the local electricity company (EVU) and
the pump manufacturer.
8. STARTING-UP
WARNING! Risk of injury!
Danger – rotating cutter! First switch off the pump!
CAUTION! Risk of damage to the pump!
Prior to starting up the pump, the shaft and the intake
pipes should be freed from solid matter such as rubbish.
8.1 Direction of rotation (only for three-phase motors)
The correct direction of rotation must be tested
before
the
pump is submerged. This is indicated by the arrow showing the
direction of rotation on the pump housing.
• Hang the pump in the hoist.
• Briefly switch on the pump. The pump will move in the oppo-
site direction to the motor (arrow on housing).
• If the direction of rotation is incorrect, 2 phases of the mains
connection must be exchanged.
8.2 Adjusting the control level
Adjusting the control level: see instructions for assembly and
installation of the control level.
CAUTION! Risk of damage to the pump!
Dry running destroys the mechanical seal.
The pump must not be allowed to run dry and to suck
any air.
The "OFF" position (H
min
) of the level control depends on the
pump type and/or the operating mode (Fig. 1, 2, 3).
The "ON" position should be set to the desired maximum level
but should nevertheless remain below the intake pipe in the
shaft.
8.3 Operating conditions in potentially explosive locations
See additional instructions for operation for in potentially explo-
sive locations
.
9. MAINTENANCE
Maintenance and repair work should only be carried out by
qualified personnel!
DANGER! Risk of asphyxiation!
Shafts for wastewater submersible motor-driven pumps
may contain wastewater with toxic and/or harmful sub-
stances.
•For reasons of safety, maintenance work should only be
carried out in the presence of another person.
•The pump shaft must be properly ventilated before any
work takes place.
WARNING! Risk of infection!
In order to avoid any risk of infection, maintenance
work should only be carried out using appropriate pro-
tective clothing (protective gloves).
WARNING! Risk of electric shock!
Potential dangers caused by electrical energy must be
excluded.
•The pump must be switched off for all repair work and
secured against unauthorised operation.
•In principle, damage to the connecting cable should
only be repaired by a qualified electrician.
Checking and cleaning the pump:
• The lifetime of the pump depends on the operating condi-
tions and consequently varies greatly. The pump should be
inspected at regular intervals. In the case of increasing oper-
ating noise, vibrations in the pipework or a drop in conveying
capacity, the impeller, with built-in cutter, must be checked
for obstructions caused by solid matter and wear.
Cleaning:
• Remove coarse impurities from the cutter’s inlet channels.
• Next, rinse out the cutter’s inlet channels. Rinse the pump
housing via the discharge side until no more impurities
emerge from the cutter’s inlet channels.
• Check the cutter’s blade clearance: Visually check the cut-
ting edges for damage such as scoring, broken-off parts and
the like. Check the blade clearance using a 0.1mm feeler
gauge. If the blade is damaged or the clearance has
increased (>0.1mm) due to wear, please contact a specialist
dealer or the nearest Salmson customer service centre or rep-
resentative.
• Restart the pump.
Protection against frost:
• If it cannot be ensured that the flow medium in the pump will
not freeze, the pump should be protected against frost.
We would recommend that the pump be maintained and
checked thoroughly by Salmson customer services once every
six months.
Maintenance shall be carried out in accordance with EN12056
Part 4.
Type of operation: S1, S3
Pump
H
min
[mm]
Mini SDL 204/1.1 ... 1.5
467
Mini SDL 204/1.1 ... 2.8
500