salmson IMMERSON S, Installation And Starting Instructions

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- Ensure that the inserted tube into the bore has a constant diame-
ter and allows a free lowering of the unit.
- Do not lower the unit with help of the electric cable.
- Perform all electric connections of conductors with the supply
cable of the motor before lowering the unit.
- In final position, the unit must be hanging at least 0.30 m above the
bottom of the borehole or the well ( See FIG. 4 ).
- It is required to fix the location identification plate closed to the bore-
hole to ensure the availability of all characteristics of the installation.
- Before lowering (and while lowering into a deep borehole) measu-
re the insulation resistance of the motor and cable several times
(2 Mohms minimum).
5.2 Hydraulic connections (See FIG. 4)
Installation diagram
1 - Immerson pump IMMERSON-S.
2 - Earth electrode.
3 - Dry-running electrode.
4 - Upper electrode.
5 - Motor supply cable.
6 - Dynamic level (pump ON).
7 - Static level (pump OFF).
8 - Protection box (with dry running).
9 - Mains supply.
10 - Pressure switch.
11 - Bladder tank.
12 - Insulation valve.
13 - Non return valve.
14 - Electric cable connected with the motor.
15 - Connexion between cables ( item 5 and 14 ).
• On threaded steel rigid pipes 1"
1/2
or 2" according to models. In case
of flexible pipe the pump has to be supported with a cable secured to
both lifting eyes located on the delivery pump housing.
• The installation of a non-return valve (
item 13 ) at the outlet of the
borehole (between pump and installation) is recommended.
• Plan a pressure gauge or contactor and insulation valve at the
borehole or well outlet.
5.3 Electrical connections
Electric connection and inspections muts be carried out by a
qualified electrician and comply with applicable local stan-
dards.
- Check the voltage available on the mains.
- Use a cable conforming to the standards in force.
The maximum cable length depends on the motor current
and the allowed voltage drop over this length.
Maximum cable length (for direct start)
CABLE (mm
2
)
Motor kW 1.5 2.5 4 6 10 16
0.25 100 • • • • •
0.37 85 144 • • • •
230 V 0.55 64 107 140 • • •
1 - phase 0,75 49 83 110 165 • •
50 Hz 1.1 32 54 80 120 195 •
1.5 25 35 60 95 153 245
2.2 17 25 45 65 102 163
0.37 570 • • • • •
0.55 380 610 • • • •
0.75 282 470 740 • • •
1.1 204 340 540 • • •
400 V 1.5 156 260 420 530 • •
3 - phase 2.2 102 170 290 400 600 •
50 Hz 3 79 132 230 320 490 •
3.7 70 125 200 290 420 680
4 58 97 180 250 380 560
5.5 45 75 140 200 300 500
7.5 30 50 100 145 210 350
Mass per meter (kg) 0.2 0.25 0.3 0.4 0.65 0.85
A failure of electric connection would damage
the motor.
- Do not forget the earth connection.
- A motor protection is required using a thermal or a magnetic cir-
cuit breaker (only for T4 or MD motor).
Motor connection :
a : black
b : blue
c : brown
d : green/yellow (
See FIG. 1-2-3 ).
Single-phase motor type MP ( See FIG. 1 ).
Single-phase motor type MD ( See FIG. 2 ).
Three-phase motor type T4 ( See FIG. 3 ).
5.4. Disassembly cable guard (See FIG. 6)
6. STARTING UP
6.1. Sens de rotation
SINGLE-PHASE
:
No risk of inversion.
THREE-PHASE :
To determine the right sense of rotation of the unit, check only the
delivery pressure, and bear in mind that the right sense of rotation
corresponds to the highest pressure.
Or by measuring the pressure, delivery valve closed and compare it
to the one required.
In case of reverse sense of rotation, interchange the two phase
wires inside the switch box or circuit breaker.
Nota : The pressure measured at the borehole outlet with closed
valve corresponds to the head of the pump at zero output minus
the height between ground level and water level.
6.2. Notes for the first starting up
In a new borehole, during the first starting up have the pump turn
during about 10 minutes, valve very lightly opened. So we will avoid
that the borehole is not overloaded by a too quick and too strong
output and that important quantities of sand are not due to this
fact driven, which would cause an important wear of the pump. So,
we can go on open slowly the valve.
6.3. Frequency of starts
To avoid that the motor abnormally overheats it is requested to
observe a frequency of 20 switching on per hour at the maximum
with an interruption of 3 minutes at least.
ENGLISH
CAUTION !