Grundfos iGRID P-Zone, Installation And Operating Instructions Manual, Page: 10 / 80

English (GB)
10
3.6 Electrical connection
3.6.1 Installing the cables
The cables for the pump or pumps are lead through a cable
bushing in the side of the pit. Ensure that the cable connections
are waterproof.
Flexible cables must always be used inside the pit between the
pump and the junction box for vibration in the cables.
3.6.2 Routing of cables
The cables between the power box and the pump or pumps must
be routed in the pre-assembled cable trays or channels.
3.7 Starting the pit
WARNING
Electric shock
Death or serious personal injury
- All electrical connections must be carried out by an
authorised electrician according to local
regulations.
DANGER
Electric shock
Death or serious personal injury
- The system must be fitted with an external
disconnecting device. Ensure that the
disconnecting device can be locked in the
disconnected position [OFF].
- If not supplied by Grundfos, the pumps must be
individually fitted with an external disconnecting
device.
DANGER
Electric shock
Death or serious personal injury
- If the regulations require a residual-current device
(RCD) or similar, see the pump and motor
installation and operating instructions.
- All electrical installations must comply with EN
60204-1 and local regulations.
- No constructive changes must be made to the
product.
WARNING
Electric shock
Death or serious personal injury
- Follow the installation and operating instructions
for the pump or pumps and other electrical
equipment.
WARNING
Electric shock
Death or serious personal injury
- Ensure that any control panels and internal pipe
installations are connected to earth.
WARNING
Electric shock
Death or serious personal injury
- Ensure that the cables do not touch hot surfaces.
When installing or removing the pump, do not pinch
or damage the cables.
– When working in or near an open pit, always
place warning signs and safety guards around
the pit to ensure that persons and vehicles do
not fall into the pit. The warning signs must be
clearly marked and visible from all sides.
– The cover and locking device must be operated
by the same person.
– The cover and locking device must only be used
when no persons are in the pit.
WARNING
Falling hazard
Death or serious personal injury
- Ensure that the cover has been properly opened
and secured against closing while work is
performed in the pit.
- Use personal protective equipment when working
in the pit.
WARNING
Steam
Death or serious personal injury
- Ensure that the pipe connections are carried out
according to the pipe manufacturer's instructions
before startup.
WARNING
Falling hazard
Death or serious personal injury
- Use personal protective equipment when working
in the pit.
WARNING
Falling hazard
Death or serious personal injury
- Stand in the pit when you carry out work in the pit.