Calpeda GQ Series Original Operating Instructions Download

Page: 8 / 56

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

max

min

max

min

max

205

220

245

265

410