English (GB)
16
The mains supply voltage and frequency are marked
on the pump nameplate. The voltage tolerance must
be within -10 % to +10 % of the rated voltage. Make
sure that the motor is suitable for the power supply
available at the installation site.
All pumps are supplied with 10 m cable and a free
cable end, except for pumps for Australia and New
Zealand which have 15 m cable.
Pumps without sensor must be connected to one of
these three controller types:
• a control box with motor-protective circuit
breaker, such as a Grundfos CU 100
• a Grundfos LC, LCD 107, LC, LCD 108 or LC,
LCD 110LC 231 or LC 241 pump controller
• a Grundfos DC, DCD pump controller.
Pumps with sensor must be connected to a
Grundfos IO 113 and one of these three controller
types:
• a control box with motor-protective circuit
breaker, such as a Grundfos CU 100
• a Grundfos LC, LCD 107, LC, LCD 108 or LC,
LCD 110LC 231 or LC 241 pump controller
• a Grundfos DC, DCD pump controller.
Do not install Grundfos control boxes,
pump controllers, Ex barriers and the free
end of the power cable in potentially
explosive environments.
The classification of the installation site
must be approved by the local fire-fighting
authorities in each individual case.
On explosion-proof pumps, make sure that
an external earth conductor is connected
to the external earth terminal on the pump
using a secure cable clamp. Clean the
surface of the external earth connection
and mount the cable clamp.
The cross section of the earth conductor
must be at least 4 mm
2
, for example type
H07 V2-K (PVT 90 °) yellow and green.
Make sure that the earth connection is
protected from corrosion.
Make sure that all protective equipment
has been connected correctly.
Float switches used in potentially
explosive environments must be approved
for this application. They must be
connected to the Grundfos LC, LCD
108LC 231 or LC241 pump controller via
the intrinsically safe LC-Ex4 barrier to
ensure a safe circuit.
DANGER
Electric shock
Death or serious personal injury
- If the supply cable is damaged, it must
be replaced by the manufacturer, its
service agent or similarly qualified
persons.
Set the motor-protective circuit breaker to
the rated current of the pump. The rated
current is stated on the pump nameplate.
If the pump has an Ex mark on the
nameplate, make sure that the pump is
connected in accordance with the
instructions given in this booklet.
Before installation and the first startup of
the pump, check the condition of the cable
visually to avoid short circuits.
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