salmson MULTI-HE - Page 30

30
English
SALMSON 08/2016
NOTE: Keep in mind that the altitude of the
installation place and the water temperature may
reduce the suction possibilities of the pump.
NOTE: Beyond 80° C, plan to install the pump in
load.
5.2 Hydraulic connections
CAUTION! Danger of material damage!
The installation has to bear the pressure reached
when the pump runs at maximum frequency and
zero ow rate.
- Connection by exible hose with reinforcement
or rigid propeller.
CAUTION! Danger of material damage!
Connections has to correctly sealed: No air entrance
is allowed on the suction pipe which is showing a
mounting declivity 2 % (g. 1).
- With rigid pipe, avoid the pump to bear the
weight of the pipes, use supports (g. 1).
- The diameter of the pipe must never be smaller
than the suction/delivery ports.
- Limit the length of the suction pipe and avoid all
features that cause losses of head (bends, valves,
tapers).
CAUTION! Danger of material damage!
When the pump is under pressure, it is recom-
mended to connect the non-return valve to the
pump discharge to protect it against hammer blow
effects.
5.3 Electric connections
WARNING! Electrical connections shall only be
made by approved specialised electricians and in
compliance with the applicable regulations.
The electric characteristics (frequency, voltage,
nominal current) of the motor-converter are men-
tioned on the pump identication sticker (item 19).
Check that the motor-converter complies with the
mains supply used.
• The electric protection of the motor is integrat-
ed into the converter. 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 protection before motor-converter.
• Provide a fuse-disconnecting switch (type gF) to
protect the mains installation (g. 1, 2, item 11).
NOTE: If you have to install a differential cir-
cuit-breaker for users protection, it must have
a delay effect. Adjust it according to the current
mentioned on the variator label.
Use power cables conforming with standards.
DANGER! Danger of death!
Do not forget to connect to earth.
The electric connection of the variator (g. 3),
according to its operating modes (see chapter 6
for starting) has to comply with the schemes of
the following table.
CAUTION! A connection error would damage the
variator.
CAUTION! 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 xing screws of the motor and reorientating
the motor to the wished position.
• Place the screws back.
Altitude Loss of head Temperature Loss of head
0 m 0 mCL 20 °C 0.20 mCL
500 m 500 mCL 30 °C 0.40 mCL
1000 m 1000 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
Ports
Tapped ports
200 400 800 1600
Suction
1“(26-34) 1“1/4(33-42) 1“1/2(40-49) 2“(50-60)
Delivery
1“(26-34) 1“(26-34) 1“1/4(33-42) 1“1/2(40-49)