Installation On Auto Coupling - Grundfos SEG AUTOADAPT Montage- Und Betriebsanleitung

8. Installation
Warning
Before beginning the installation,
switch off the power supply, and lock
the mains switch in position 0.
Any external voltage connected to the
pump must be switched off before
working on the pump.
Warning
Before installation and the first start-up
of the pump, check the cable for visible
defects to avoid short-circuits.
Before beginning the installation,
Caution
make sure the tank floor is even.
The additional nameplate supplied with the pump
can be fixed close to the tank.
All safety regulations must be observed at the
installation site, for instance the use of blowers for
fresh-air supply to the tank.
Prior to installation, check the oil level in the oil
chamber. See section 12. Maintenance and service.
The pumps are suitable for different installation types
which are described in sections 8.1 and 8.2.
All pump housings have a cast DN 40, PN 10
discharge flange which can also be connected to
a DN 50, PN 10 flange.
Warning
Do not put your hands or any tool into
the pump suction or discharge port
after the pump has been connected to
the power supply, unless the pump has
been switched off by removing the
fuses or switching off the mains switch.
It must be ensured that the power
supply cannot be accidentally switched
on.
Warning
Only use the lifting bracket for lifting
the pump. Do not use it to hold the
pump when in operation.
We recommend always to use Grundfos
accessories to avoid malfunction due
Note
to incorrect installation.
The pumps are designed for
intermittent operation.
When completely submerged in the
Note
pumped liquid, the pumps can also
operate continuously.
See section 11.2 Operating modes.

8.1 Installation on auto coupling

Pumps for permanent installation can be mounted on
a stationary auto-coupling guide rail system or a
"hookup" auto-coupling system.
Both auto-coupling systems facilitate maintenance
and service as the pump can easily be lifted out of
the tank.
Warning
Before beginning installation
procedures, make sure that the
atmosphere in the tank is not
potentially explosive.
Make sure that the pipework is installed
without the use of undue force. No
loads from the pipework weight must
be carried by the pump. We recommend
Caution
the use of loose flanges to ease the
installation and to avoid pipe tension at
flanges and bolts.
Do not use elastic elements or bellows
in the pipework. Never use these
Caution
elements as a means to align the
pipework.
Auto-coupling guide rail system, see fig. A on
page 570.
Proceed as follows:
1. Drill mounting holes for the guide rail bracket on
the inside of the tank, and fasten the guide rail
bracket provisionally with two screws.
2. Place the auto-coupling base unit on the bottom
of the tank. Use a plumb line to establish the
correct positioning. Fasten the auto coupling with
heavy-duty expansion bolts. If the bottom of the
tank is uneven, the auto-coupling base unit must
be supported so that it is level when being
fastened.
3. Assemble the discharge line in accordance with
the generally accepted procedures and without
exposing the line to distortion or tension.
4. Insert the guide rails in the auto-coupling base
unit, and adjust the length of the rails accurately
to the guide rail bracket.
5. Unscrew the provisionally fastened guide rail
bracket, fit it on top of the guide rails, and finally
fasten it firmly to the tank wall.
The guide rails must not have any axial
play as this would cause noise during
Note
pump operation.
6. Clean out debris from the tank before lowering
the pump into the tank.
7. Fit the guide claw to the discharge port of the
pump. Then slide the guide claw down the guide
rails, and lower the pump into the tank by means
of a chain secured to the pump lifting bracket.
When the pump reaches the auto-coupling base
unit, the pump will automatically connect tightly.
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