Grundfos MULTILIFT MD1 Installation And Operating Instructions Manual page 8

2.1.6 Level controller
The level controller supplied with the lifting stations is
either LC 231 or LC 241.
See the documentation for the level controller for
further details.
Data booklet:
http://net.grundfos.com/qr/i/98288126
LC 231 installation and operating instructions
Dual pump unit:
http://net.grundfos.com/qr/i/99480674
LC 241 installation and operating instructions
Dual pump unit:
http://net.grundfos.com/qr/i/99480978
8
2.1.7 Inspection cover
The inspection cover enables inspection of the tank
during operation.
1
Pos. Description
1 Inspection cover
2.1.8 Non-return valve
Lifting stations must be provided with an approved
non-return valve according to EN 12050-4. The non-
return valve must have a correct free passage and a
lifting device, for example a screw, to drain the outlet
pipe back into the tank.
2.1.9 Optional equipment
2.1.9.1 Accessories
For available accessories, see the link or QR code
below.
http://net.grundfos.com/qr/i/98288126
Related information
3.2 Scope of delivery
2.1.9.2 Drainage pump
If the lifting station is installed in a basement with
penetrating groundwater, we recommend that you
install a drainage pump in a separate pump sump
below floor level. In some countries, a drainage pump
or only a pump sump is required.