Wilo Port 800 Einbau- Und Betriebsanleitung Seite 43

INSTALLATION
1. Excavate the pit taking into account the following points:
• Pump chamber height
• Inlet pipe depth
• Connection port DN 150 or DN 200 height
• Underlay approx. 300 mm
• Levelling layer approx. 100 mm
• Pump cover height
• Pump chamber extension height, max. 500 mm
• The pit diameter on the ground must be 2 m larger than the pump
chamber diameter.
• Observe the applicable regulations for earthworks in underground
engineering and road building (slope angle, installation).
• If required due to the groundwater level, the pit must be protected
using a groundwater drawdown.
NOTE:
If a class D400 pump cover is to be used, a load distribution plate
must also be installed. To do this, the additional height of 300 mm
and the corresponding substructure must be taken into account.
2. Check the floor of the pit for bearing capacity.
3. Install the load-bearing mineral mixture underlay properly and seal it
(Dpr 97%).
4. Add a levelling layer of sand approx. 100 mm thick and level off.
5. Prepare the onsite inlet, venting and pressure pipes.
6. Install the pump chamber in the pit, align the connections with the
onsite piping and drive in evenly.
Installation and operating instructions Wilo-Port 800
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Z
Z + 2000
Fig. 3
English
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