English (GB)
15
7. Installation
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?
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 service.
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.
7.1 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.
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.
Prior to installation, make sure the tank bottom is
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.
Further details concerning accessories can be
found in the data booklet on SL1, SLV pumps on
www.grundfos.com.
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.
We recommend to always use Grundfos
accessories 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.
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 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; these elements should never be used
as a means to align the pipework.
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