Grundfos SL1 Serie Instrucciones De Instalación Y Funcionamiento página 10

7. Installation
Warning
During installation, always support the pump by
means of lifting chains or place it in horizontal
position to secure stability.
Prior to installation, make sure the tank bottom is
Caution
even.
Warning
Before beginning the installation, switch off the
power supply and lock the mains switch in position 0
with a padlock to ensure that the power supply
cannot be accidentally switched on.
Any external voltage connected to the pump must be
switched off before working on the pump.
Before beginning installation procedures, carry out these checks:
• Does the pump correspond to order?
• Is the pump suitable for the supply voltage and frequency
available at the installation site?
• Are accessories and other equipment undamaged?
Further details concerning accessories can be found
in the data booklet on SL1, SLV pumps on
Note
www.grundfos.com.
Fix the extra nameplate supplied with the pump to the cable end
in the control cabinet.
All safety regulations must be observed at the installation site,
e.g. the use of blowers for fresh-air supply to the tank.
Prior to installation, check the oil level in the oil chamber.
See section 10. Maintenance and
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. Make sure that the power
supply cannot be accidentally switched on.
We recommend to always use Grundfos accessories
Caution
to avoid malfunctions due to incorrect installation.
Warning
Only use the lifting bracket for lifting the pump. Do
not use it to hold the pump when in operation.
Installation types
The SL1 and SLV pumps are designed for two installation types:
• submerged installation on auto-coupling
• free-standing submerged installation on ring stand.
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service.
7.1 Submerged installation on auto-coupling
Fig. 4 Submerged installation on auto coupling
Pumps for permanent installation can be installed on a stationary
auto-coupling guide rail system. The auto-coupling system
facilitates 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
Caution
weight must be carried by the pump. We recommend
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
Caution
pipework; these elements should never be used as a
means to align the pipework.
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 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 pipe in accordance with the generally
accepted procedures and without exposing the pipe 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 tank.
5. Unscrew the provisionally fastened guide rail bracket.
Insert the upper guide rail bracket into the guide rails.
Fasten the guide rail bracket on the inside of the tank.
The guide rails must not have any axial play as this
Note
would cause noise during 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.