Grundfos MAGNA1 Series Operating manual

GRUNDFOS INSTRUCTIONS
MAGNA1
Model A and B
Safety instructions and other important information
Installation and operating instructions
http://net.grundfos.com/qr/i/98091804

English (GB)
2
English (GB) Safety instructions
Original safety instructions
These safety instructions give a quick
overview of the safety precautions to be
taken in connection with any work on this
product.
Observe these safety instructions during
handling, installation, operation,
maintenance, service and repair of this
product.
These safety instructions is a supplementary
document, and all safety instructions will
appear again in the relevant sections of the
installation and operating instructions.
Keep these safety instructions at the
installation site for future reference.

English (GB)
3
General warning
Prior to installation, read this
document and the quick guide.
Installation and operation must comply
with local regulations and accepted
codes of good practice.
This appliance can be used by
children aged from 8 years and above
and persons with reduced physical,
sensory or mental capabilities or lack
of experience and knowledge if they
have been given supervision or
instruction concerning use of the
appliance in a safe way and
understand the hazards involved.
Children shall not play with the
appliance. Cleaning and user
maintenance shall not be made by
children without supervision.

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Type key
Code Example (D) 32 -40 (F) (N) 220
Type range
MAGNA1
D
Single-head pump
Twin-head pump
Nominal diameter
(DN) of suction and
discharge ports [mm]
Maximum head [dm]
F
Pipe connection
Threaded
Flange
N
Pump housing material
Cast iron
Stainless steel
Port-to-port length [mm]

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Lifting the pump
Installing the product
Observe local regulations concerning
limits for manual lifting or handling.
CAUTION
Pressurised system
Minor or moderate personal injury
- Pay special attention to any
escaping vapour when loosening
the clamp.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Do not drop the pump head when
loosening the clamp.

English (GB)
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Electrical installation
Fit and tighten the screw holding the
clamp to 8 Nm ± 1 Nm. Do not apply
more torque than specified even
though water is dripping from the
clamp. The condensed water is most
likely coming from the drain hole under
the clamp.
Check the position of the clamp before
you tighten the clamp. Incorrect
position of the clamp will cause
leakage from the pump and damage
the hydraulic parts in the pump head.
WARNING
Electric shock
Death or serious personal injury
- Lock the main switch in position 0.
Type and requirements as specified
in EN 60204-1, 5.3.2.
8Nm!

English (GB)
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WARNING
Electric shock
Death or serious personal injury
- Connect the pump to an external
main switch with a minimum contact
gap of 3 mm in all poles.
- Use earthing or neutralisation for
protection against indirect contact.
- If the pump is connected to an
electric installation where an
electrical circuit breaker (voltage
sensing ELCB, residual-current
device RCD or residual-current
circuit device RCCB) is used as an
additional protection, this circuit
breaker must be marked with the
first or both of the symbols shown
below:

English (GB)
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Product introduction
Make sure that the fuse is
dimensioned according to the
nameplate and local regulations.
Connect all cables in accordance with
local regulations.
Make sure that all cables are
heat-resistant up to 75 °C.
Install all cables in accordance with
EN 60204-1 and EN 50174-2:2000.
Do not pump aggressive liquids.
Do not pump flammable, combustible
or explosive liquids.

English (GB)
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Operating the product
Fault finding the product
CAUTION
Hot surface
Minor or moderate personal injury
- Only touch the control panel to
avoid burns.
CAUTION
Pressurised system
Minor or moderate personal injury
- Before dismantling the pump, drain
the system or close the isolating
valve on either side of the pump.
The pumped liquid may be scalding
hot and under high pressure.

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WARNING
Electric shock
Death or serious personal injury
- Switch off the power supply for at
least 3 minutes before you start any
work on the product. Lock the main
switch in position 0. Type and
requirements as specified in
EN 60204-1, 5.3.2.
WARNING
Electric shock
Death or serious personal injury
- Make sure that other pumps or
sources do not force flow through
the pump even if the pump is
stopped.
If the power supply cable is damaged,
it must be replaced by the
manufacturer, the manufacturer's
service partner or a similarly qualified
person.