Calpeda GQ Original Operating Instructions Download

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GQ, GX, GM Rev. 5 - Operating Instructions

6.6. Transportable installation

To avoid early deterioration of the pump when used
in stagnant water or in rivers, mount on a flat surface
raised from the ground so that sand or grit is not lif-
ted.
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.

6.7. 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).

6.8 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 correspond
with the name plate data.
For use in swimming pools (not when persons are in
the pool), garden ponds and similar places, a residual
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.

6.8.1. 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 (paragraph 12.2 Annexes).

6.8.2. GQG single-phase pumps

Supplied with control box with an overload-protective
device  and  with  starting  capacitors.  Power cable
type H07  RN8-F,  without  plug  and  with  float  switch.
Electrical  diagram  (paragraph  12.2  Annexes)  (see
the diagram into the control box).

6.8.3. Three-phase pumps

GQR, GQN, GQS, GQV, GXC, GXV, GQG

Cable without plug

Install in the control box an overload-protective device
with curve D in accordance with the name-plate current.
With three-phase pumps, when the water level is not
under direct visible control, install a float switch connec-
ted to the control box and to set the water levels to stop
and automatically start the pump.

6.8.4. Three-phase pumps GMC, GMV
Cable without plug

Install  in  the  control  box  an  overload-protective  device
with curve D in accordance with the name-plate current.
Fitted with 2 thermal protectors which are connected in
series  and  inserted  between  two  different  phases.  The
thermal protectors,  in  the  three-phase  motors,  provide
protection against overloading and not against operation
with a blocked rotor.
The  control  box  must  therefore  also  be  fitted  with  a
suitable  hot-wire  ammeter  relay  cuopled  with  the
control contactor.
Electrical diagram (paragraph 12.2 Annexes).

OFF

Off 540

220

min 550 x 550

3.93.037/3

max

min

max

min

max

205

220