Electrical Connection - salmson SUBSON Serie Instalacion Y Puesta En Servicio

ENGLISH

7.2 Electrical connection

Danger! Risk of fatal injury!
If the electrical connection is not made properly, there
is a risk of fatal injury from an electric shock.
Only allow the electrical connection to be made by an elec-
trician approved by the local electricity supplier and in
accordance with the local regulations in force.
•The type of mains connection current and voltage must corre-
spond to the details on the name plate
•Fuse in the power supply: 10 A, slow,
•Earth the installation according to the regulations.
•The installation of a leakage current protection switch to be
provided on site for a trip current of 30 mA is recommended
(caution when installing outside).
•The pump is ready to connect.
To connect the pump to the switchgear, the shock-proof plug
is disconnected and the connecting cable is then connected
as follows (see Installation and operating instructions for the
switchgear):
3-wire connection cable: 3x1.0 mm²
Conductor
brown
blue
green/yellow
Socket and switchgear must be installed in a dry room and pro-
tected against flooding.
8. COMMISSIONING
Danger! Danger through electric shock!
The pump may not be used to drain swimming pools /
garden ponds or similar place if anyone is in the water.
CAUTION! Danger of property damage!
Do not allow the mechanical seal to run dry!
Dry running shortens the service life of the motor and
the mechanical seal. If the mechanical seal is dam-
aged, small amounts of oil may escape into the
pumped fluid.
•When filling the shaft or lowering the pump into the pit, make
sure that the float switches can move freely. The switch must
switch off the pump before the intake openings of the pump
can draw in air.
•After filling the shaft and opening the check valve on the pres-
sure side (if provided), the pump starts up automatically when
the switch-on level 'h' is reached and switches off as soon as
the switch-off level 'h1' responds.
•Do not direct the jet of water to be fed into the shaft at the suc-
tion strainer of the pump. Entrained air can prevent the oper-
ating pump from functioning if the vent slit in the housing is
blocked.
•The maximum volume of water entering the shaft must not
exceed the performance of the pump. Keep an eye on the
shaft when commissioning the pump.
NOTE: The venting of the pump when commissioned for
the first time will be improved by submersion in the fluid
at an angle or by positioning it at a slight angle.
Adjusting the switching level of the float switch
The perfect functioning of the level control system is guaran-
teed if the details according to the table in 7.1 and FIG. 2 are
observed.
The switching level (switch-on/off point) can be changed via
the free float switch cable by moving the cable within the clip
on the pump handle. The level " h2 min " must be respected
(see FIG. 2).
Terminal
L1
N
PE
On version "AB", to reach the maximum low suction level, the
float switch must be manually lifted.
A small degree of water evacuation (lateral slit between suc-
tion strainer and housing) when level "h2" is reached is normal
and necessary to ensure the operational safety of the pump.
•Do not direct the jet of water to be fed into the shaft at the suc-
tion strainer of the pump. Entrained air can prevent the oper-
ating pump from functioning if the vent slit in the housing is
blocked.
•The maximum quantity of water feeding into the shaft may not
exceed the pump's capacity. Monitor the sump during com-
missioning.
•To increase the required capacity (by approx.16 % of the deliv-
ery head) the whirl system device of the pump can be shut
down as follows (FIG. 3):
– Pull the mains plug,
– Remove pump from the sump,
– Remove the 4 screws (pos. 2) below the suction basket,
– Remove the whirl device (pos. 1), rotate by 180° and secure
again with the 4 screws,
– Lower pump again and start up.
9. MAINTENANCE
Maintenance and repairs may only be carried out by qualified
experts!
DANGER! Risk of fatal injury!
There is a mortal danger through shock when working
on electrical equipment.
•Before any maintenance and repair work, the pump
must be switched off and prevented from being
switched on again in an unauthorised manner.
•Damage to the connecting cable may only be repaired
by a qualified electrical contractor in principle.
•When checking the function following long downtimes,
avoid contact with the fluid.
In order to prevent blockage of the pump resulting from long
downtimes, its ability to function should be checked at regular
intervals (every 2 months) by manual raising of the float switch
or direct switching-on and brief start-up of the pump.
Minor wear of the rotary shaft seal and mechanical seal can
lead to fouling of the liquid following an oil leak from the oil
chamber.
The pump should therefore be serviced after approx. 2000
operating hours by a specialist or Salmson After-sales Service,
mainly in order to check the seals.
Only specialist companies or Salmson After-sales Service may
open the encapsulated motor.
Cleaning the pump
Depending on the use of the pump, fouling can occur within
the suction strainer and the impeller. Rinse off he pump under
running water after use.
1 Switch off the power supply. Disconnect the mains plug.
2 Drain the pump
3 The whirl device is screwed to the suction strainer (FIG. 3).
– Loosen 4 screws (Ø3.5x14),
– Remove whirl device,
4 The suction strainer is screwed to the pump housing,
– Loosen 4 screws (Ø4 x 60),
– Remove suction strainer, handle O-ring (Ø155 x 2)
between suction strainer / pump housing and O-ring
(Ø14 x 2) in the bypass hole (necessary for the whirl
function) with care.
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