Grundfos DP 10 Series, Инструкция по установке и эксплуатации

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English (GB)
9
7. Installation
Fit the extra nameplate supplied with the pump at the
installation site or keep it in the cover of this booklet.
Observe all safety regulations at the installation site,
for instance the use of blowers for fresh-air supply to
the pit.
Prior to installation, check the oil level in the oil
chamber. See section
10. Maintenance and service .
The pumps are suitable for different installation types
which are described in sections
7.1 Installation on
auto coupling and 7.2 Free-standing submerged
installation .
The pump housings have an R2 outlet branch or a
DN 65, PN 10 outlet flange.
7.1 Installation on auto coupling
Pumps for permanent installation can be installed 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 pit.
DP 10.65.26 pumps have a cast iron DN 65, PN 10
outlet flange and cannot be installed on a "hookup"
auto-coupling.
We recommend that you use loose flanges to ease
the installation and to avoid pipe tension at flanges
and bolts.
Auto-coupling guide rail system
See fig. A , page 23 .
Proceed as follows:
1. Drill mounting holes for the guide rail bracket on
the inside of the pit and fasten the guide rail
bracket provisionally with two screws.
2. Place the auto-coupling base unit on the bottom
of the pit. Use a plumb line to establish the
correct positioning. Fasten the auto coupling with
heavy-duty expansion bolts. If the bottom of the
pit is uneven, the auto-coupling base unit must
be supported so that it is level when being
fastened.
3. Assemble the outlet line in accordance with the
generally accepted procedures and without
exposing the line to distortion or tension.
4. Place the guide rails on the auto-coupling base
unit, and adjust the length of the rails accurately
to the guide rail bracket at the top of the pit.
5. Unscrew the provisionally fastened guide rail
bracket, fit it on top of the guide rails and finally
fasten it firmly to the pit wall.
6. Clean out debris from the pit before lowering the
pump into the pit.
7. Fit the guide claw to the pump outlet.
Prior to installation, make sure the pit
bottom is even.
DANGER
Electric shock
Death or serious personal injury
- Before beginning the installation, switch
off the power supply and lock the main
switch in position 0.
- Switch off any external voltage
connected to the pump before working
on the pump.
DANGER
Electric shock
Death or serious personal injury
- Prior to installation and the first startup
of the pump, check the cable for visible
defects to avoid short circuits.
The pumps are designed for intermittent
operation. When completely submerged in
the pumped liquid, the pumps can also
operate continuously.
CAUTION
Crushing of hands
Minor or moderate personal injury
- Do not put your hands or any tool into
the pump inlet or outlet 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 main switch.
- Make sure that the power supply cannot
be accidentally switched on.
We recommend that you always use
Grundfos accessories to avoid malfunction
due to incorrect installation.
Only use the lifting bracket for lifting the
pump. Do not use it to hold the pump when
in operation.
Before beginning installation procedures,
make sure that the atmosphere in the pit 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.
Do not use elastic elements or bellows in
the pipework. Never use these elements
as a means to align the pipework.
The guide rails must not have any axial
play as this would cause noise during
pump operation.