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8
3.1.1. Stationary installation with
vertical magnetic float switch
Installation fit a check valve against back flow in
the delivery pipe ball valve (swing valve for GQR).
Provide for the possibility of removing the pump
without having to drain the entire system (if
necessary, fit a gate valve and a union coupling).
With the pump in the resting position secure the
delivery pipe to a rest, suitable for its length and
weight.
If slime deposits are expected to form at the
bottom of the installation pit, a support must be
provided to keep the pump raised.
3.2. Transportable installation
To avoid early deterioration of the pump when used in
stagnant water or in rivers, mount on a flat surface rai-
sed from the ground so that sand or grit is not lifted.
When a plastic delivery pipe or flexible hose is
used, a rope is required for lowering, securing and
lifting the pump.
A safety rope or chain of non-perishable material
should always be used to secure the pump.
Never use the electric power cable
to suspend the pump.
In order to avoid the risk of mechanical or
electrical injury all portable pumps should
be securely isolated from electrical power
supply prior to their relocation.
Attach the power supply cable to the delivery pipe
or to the safety rope with cable clamps. The power
cable should not be taut: allow for a certain degree
of slackness to avoid the risk of strain caused by
expansion of the pipe during operation.
3.3. Fixed installation with automatic
coupling feet and guide rails
GMC 50-65, GMV 50-65, GQV
The automatic coupling system allows for quick
and efficient inspection operations.
The coupling foot is fastened to the bottom of the
sump together with the delivery pipe; two guiding
tubes connect it to the anchoring bracket secured
to the edge of the sump cover.
The pump is lowered along the guiding tubes until
it reaches the exact coupling position; the seal
will be tight thanks to the weight of the pump.
This operation can be repeated any number of
times and it makes checking and inspection
operations easier; the pump is simply extracted
from the sump by means of a chain (even if the
system is flooded).
4. Electrical connection
Electrical connection must be carried out
only by a qualified electrician in accordance
with local regulations.
Follow all safety standards.
The unit must be always earthed, also with a
non-metallic delivery pipe.
Make sure the frequency and mains voltage corre-
spond with the name plate data.
For use in swimming pools (not when persons are
in the pool), garden ponds and similar places, a re-
sidual current device with I∆N not exceeding 30 mA
must be installed in the supply circuit.
Install a device for disconnection from the
mains (switch) with a contact separation of at least
3 mm on all poles.
When extension cables are used, make sure the
cable wires are of adequate size to avoid voltage
drops and that the connection stays dry.
4.1. Single-phase pumps
Supplied with incorporated capacitor and thermal
protector, with power cable type H07 RN8-F,
with plug and float switch.
Connect the plug to a socket with an earth lead.
Electrical diagram pag. 54.
min 550 x 550
3.93.037/3
h
max
h
min
mm
h
min
h
max
h
min
h
max
205
220
220
245
265
265
410
425
425
450
470
470
GQR 10-10
GQR 10-12
GQR 10-14
GQR 10-16
GQR 10-18
GQR 10-20
mm
h
min
h
max
mm
mm
mm
3.93.004/1
GQR
GQS, GQV 50-9
GQS, GQV 50-10
515
530
260
275
GQS, GQV 50-11
555
300
GQS, GQV 50-13
575
320
320 575
GQS, GQV 50-15
GMC 50...
GMV 50...
500
500
180
180
GMC 50-65..
505
185
GMC 50-65..
505
185
mm
h
min
h
max
225
240
240
265
285
315
330
330
355
375
h
max
h
min
min 300 x 250
3.93.037/3
GQRM 10-10 GF
GQRM 10-12 GF
GQRM 10-14 GF
GQRM 10-16 GF
GQRM 10-18 GF
GXV
(M)
40-7
GXV
(M)
40-8
508
533
248
273
GXV
(M)
40-9
533 273
GXC
(M)
40-10
GXC
(M)
40-13
508
533
248
273
M
1
4.67.380
h
max
h
min
h
max
h
min
On
Off
TYPE
min 550 x 550
3.93.037/3
h
max
h
min
mm
h
min
h
max
h
min
h
max
205
220
220
245
265
265
410
425
425
450
470
470
GQR 10-10
GQR 10-12
GQR 10-14
GQR 10-16
GQR 10-18
GQR 10-20
mm
h
min
h
max
mm
mm
mm
3.93.004/1
GQR
GQS, GQV 50-9
GQS, GQV 50-10
515
530
260
275
GQS, GQV 50-11
555
300
GQS, GQV 50-13
575
320
320 575
GQS, GQV 50-15
GMC 50...
GMV 50...
500
500
180
180
GMC 50-65..
505
185
GMC 50-65..
505
185
mm
h
min
h
max
225
240
240
265
285
315
330
330
355
375
h
max
h
min
min 300 x 250
3.93.037/3
GQRM 10-10 GF
GQRM 10-12 GF
GQRM 10-14 GF
GQRM 10-16 GF
GQRM 10-18 GF
GXV
(M)
40-7
GXV
(M)
40-8
508
533
248
273
GXV
(M)
40-9
533 273
GXC
(M)
40-10
GXC
(M)
40-13
508
533
248
273
M
1
4.67.380
h
max
h
min
h
max
h
min
On
Off
h
m
ax
h
m
in
mm
GQV
(M)
50-8
GQV
(M)
50-9
580
580
320
320
GQV
(M)
50-11
605 345
GQV
(M)
50-13
625 365
365
625
GQV 50-15
h
max
h
min
On
Off 54
0
22
0
TYPE