Hydraulic Connections; Electrical Connections - salmson MULTI-VE Instalación E Instrucciones De Puesta En Marcha

ENGLISH
vertical : use shims if necessary.
Bear in mind that the altitude of the installation place and the water
temperature may reduce the suction possibilities
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of the pump.
ltitude Loss of head
0 m 0 mCL
500 m 0.60 mCL
1000 m 1.15 mCL
bove 80° C, plan to install the pump
under pressure.
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5.2 Hydraulic connections

The installation has to bear the pressure reached when the
pump runs at maximum frequency and zero flow rate.
Pump with round flange pump casing : with weld-on or screw-
on tube in the counterflange (counterflange available as accesso-
ries).
The diameter of the pipe must never be smaller than the one of the
counterflange.
n arrow on the pump casing shows the direction of the fluid flow.
Limit the length of the suction pipe and avoid all features that cause
losses of head (bends, valves, tapers).
Connections has to correctly sealed : no air entrance is allowed on
the suction pipe which is showing a mounting declivity to 2%
(See FIG. 1).
Use supports or collards (FIG 1 & 2 – ref. 7) so that the pump does not
bear the weight of the pipes.
When the pump is under pressure, it is recommen-
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ded to connect the non-return valve to the pump
discharge to protect it against hammer blow effects.
Note : To pump water with a large content of air or hot water, we
recommend to install the by-pass kit (FIG. 1 - ref. BP).

5.3 Electrical connections

The electrical connections and inspections have to be car-
ried out by a qualified electrician and have to comply with
the relevant local standards.
The electric characteristics (frequency, voltage, nominal current) of
the motor-variator are mentioned on the name plate. Check that the
motor-variator complies with the mains supply used.
The electric protection of the motors is integrated into the variator.
The parameters take into account the characteristics of the pump
and must ensure its protection and the one of the motor.
In case of impedance between earth and neutral point, install a pro-
tection before motor-variator.
Provide a fuse disconnecting switch (type GF) to protect the mains
installation (FIG. 1 & 2 – ref. 11).
Temperature Loss of head
20 °C 0.20 mCL
30 °C 0.40 mCL
40 °C 0.70 mCL
50 °C 1.20 mCL
60 °C 1.90 mCL
70 °C 3.10 mCL
80 °C 4.70 mCL
90 °C 7.10 mCL
100 °C 10.30 mCL
110 °C 14.70 mCL
120 °C 20.50 mCL
If you have to install a differential circuit-breaker for users pro-
tection, it must have a delay effect. djust it according to the
current mentioned on the variator label.
Use power cables conforming with standards
DO NOT FORGET TO CONNECT TO E RTH.
The electric connection of the variator (FIG. 4) according to its ope-
rating modes (See chapter 6 - ST RTING UP) has to comply with the
schemes of the following table.
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connection error would damage the variator.
The power cable must never touch the pipe or the pump ;
make sure that it is sheltered from any humidity.
You can change the orientation of the motor-variator by quarter turn
when removing the fixing screws of the motor and reorientating the
motor to the wished position.
- Put the screws.
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