Electrical Connection; Generator Or Inverter - Grundfos MQ Serie Manual Del Usuario

9. Electrical connection

The electrical connections and additional protection
should be carried out by qualified persons in
accordance with local regulations.
Warning
Non-submersible pump.
If the power cord is damaged, it must
be replaced by the manufacturer, an
authorized service center or by a
qualified person in order to avoid risks.
Never make any connections in the
pump terminal box unless the
electricity supply has been switched
off for at least 5 minutes.
Risk of electric shock:
This pump is supplied with a grounding
conductor and grounding type
attachment plug. To reduce the risk of
electric shock, install only on circuit
protected by a Ground-Fault-Circuit-
Interrupter (GFCI).
This pump is not intended, nor has it
been investigated for use in swimming
pool or marine areas.
This pump has been evaluated for use
with water only.
Do not start the pump until it has been
filled with water (primed, see fig. 14).
Acceptable for indoor and outdoor use.
Enclosure type 3.
The operating voltage and frequency are marked on
the nameplate. Make sure that the motor is suitable
for the electricity supply on which it will be used.
The pump must be connected to the mains via a
sheathed cable with a protective ground lead.
It is possible to replace the mains supply cable.
See fig. 12.
Fig. 12
Electrical connection
Connect the mains supply cable of the pump to the
electricity supply. When the cable is connected, a red
and a green indicator light on the control panel will
be on. See fig. 13.
Fig. 13
When mains supply cable is connected,
these two indicator lights will be on

9.1 Generator or inverter

The MQ can be powered by a generator
or an inverter. However, the pump will
only operate satisfactorily if the
generator or inverter generates a true
Note
sinusoidal wave with the necessary
power and voltage input. The generator
must be sized 10 % above the P1
(input power) of the pump. For P1,
see section 13.1 Dimensions.
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