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Item
Description
a
Distance of propeller from dosing tank bottom
b
Position of level switch (minimum liquid level above the propeller)
Position of shaft (recommended distance between shaft and centre of
c
dosing tank)
T
Tank diameter
See section
8.3.1 Table of
10.3.1 Installation dimensions for Grundfos cylindrical tanks
El.stirrer
Tank size
f.60l tank
f.100l tank
f.200l tank
f.300l tank
f.500l tank
f.1000l tank
10.4 Mechanical installation
1. Use a Grundfos cylindrical dosing tank prepared
for assembly of an electric stirrer, or cut a
suitable hole for the motor flange into a standard
cylindrical dosing tank.
– 1000-litre tanks must have a reinforced beam
prepared for installation of a stirrer.
2. Install the electric stirrer vertically on a suitable
Grundfos cylindrical dosing tank with the
appropriate mounting kit supplied, see
8.5 Mounting kit (screws and
– Do not twist the shaft or strain it with the weight
of the motor.
– Tighten the screws with 6 Nm (+0 / -1 Nm).
3. Make sure that the shaft and propeller are not
touching any point of the tank.
4. Before commissioning, make sure that the filling
level of the tank is monitored with a level switch.
– Minimum distance between level switch and
propeller see fig. 5.
10.5 Electrical installation
Carry out the electrical connection according to local
regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
Warning
During electrical installation, make sure
that the power supply cannot be
accidentally switched on.
dimensions.
Distance from tank
bottom
(a)
[l]
[mm]
60
80
100
90
200
50
300
75
500
80
1000
140
washers).
Position of level
switch
(b)
[mm]
200
200
260
260
285
360
10.5.1 Electrical connection
Warning
Switch off the power supply before making
connections.
Warning
The electrical installation must be carried
out by an authorised person in accordance
with local regulations and the relevant
wiring diagram.
Observe the installation and operating
instructions for the motor used.
Observe direction of rotation of the motor.
In case of wrong direction of rotation, the
Caution
propeller can fall off the shaft during
operation.
1. Connect the motor to the mains according to the
wiring diagram in the terminal box cover.
2. Protect the cable connections against corrosion
and humidity.
3. Fuse the motor with a motor overload switch of
the appropriate rating.
4. Check the direction of rotation (see arrow on
motor housing).
Dimensioning rule
0.5 - 1.1 x D
2-3 x D
0.25 x T
-
Position of stirrer
shaft
(c)
[mm]
130
130
170
170
195
270
11
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