Grundfos Multilift MSS, Installation And Operating Instructions Manual

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English (GB)
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5. Connecting the outlet pipe.
Install an isolating valve between the non-return valve and the
supplied flexible connection hose, DN 100 (internal diameter
110 mm). A flexible connection can be ensured if a distance of
approx. 5 cm is left between the pipe ends of the inlet, outlet
and vent pipes and the ports of the lifting station.
Fig. 13 Isolating valve on top of non-return valve
6. Connecting the venting pipe.
The DN 50 vent port on top of the tank is open. Connect the
venting pipe to the vent port via a flexible connection piece.
The venting pipe must be led out above the roof into the open
air in accordance with local regulations. A flexible connection
can be ensured if a distance of approx. 3 cm is left between
the venting pipe end and the vent port.
7. Connecting the diaphragm pump (optional).
Fit the diaphragm pump on the outlet side. To facilitate
servicing of the diaphragm pump, we recommend fitting a 1
1/2" isolating valve to the tank port.
8. Fixing the tank to the floor.
Fig. 14 Fixing point for fixation of tank to the floor
7. Installation of LC 220 controller
The installation must be carried out by authorised personnel in
accordance with local regulations.
7.1 Location
LC 220 can be installed at ambient temperatures ranging from
0 °C to +40 °C.
Enclosure class: IP56.
Install the controller as close as possible to the lifting station.
When installed outdoors, LC 220 must be placed in a protective
shed or enclosure. LC 220 must not be exposed to direct sunlight.
7.2 Mechanical installation
Proceed as follows:
• Mount LC 220 on a plane wall surface.
• Mount LC 220 with the cable entries pointing downwards
(additional cable entries, if required, must be fitted in the
bottom plate of the cabinet).
• Mount LC 220 with four screws through the mounting holes in
the back plate of the cabinet. Drill the mounting holes with a
6 mm drill using the drilling template supplied with the
controller. Fit the screws into the mounting holes and tighten
securely.
Fit the plastic caps.
Fig. 15 Mounting of controller on the wall
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Warning
Before making any connections in LC 220 or working
on pump, pit, etc., make sure that the power supply
has been switched off and that it cannot be
accidentally switched on.
Warning
Do not install the LC 220 controller in explosion
hazard areas.
Warning
When drilling the holes, take care not to damage any
cables or water and gas pipes. Ensure a safe
installation.
Note
LC 220 can be mounted without removing the front
cover.
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