Installation Of The Chamber System - Kessel Aqualift S LW 1000 Installation, Operation And Maintenance Instructions

Caution
- The pre-assembled bottom part of the chamber, the cham-
- Hazard through heavy weights
ber cover and the pump(s). The parts may only be lifted
and/or assembled using suitable equipment and exercising
appropriate caution.
-
- There is a danger of slipping during entry into the inspec-
- Danger of slipping
tion chamber. For this reason, a second person must al-
ways be available to monitor the entry into the chamber
from the outside.
- Before the excavation pit is backfilled, there is a risk of the
- Danger of tilting
chamber tilting. For this reason, no-one may enter the
chamber until the excavation pit has been completely back-
filled.

4.1 Installation of the chamber system

The excavation base must be levelled horizontally with 30
cm gravel and compacted. 10 cm sand must be added to
this. Now the chamber is set down on its whole surface.
Observe the position of the inlet, ventilation and cable con-
duit pipes as well as the position of the pressure pipe (see
section 4.2).
The chamber system must be filled with gravel (type G1
according to ATV-A127) in 30 cm layers-each layer to be
compacted. When the connection heights are reached,
pipes must be connected accordingly (see section
"Connecting the pipes").
When installing chamber systems, the respective load
class must be heeded. If the chamber is installed in a
pedestrian area (Class A/B) or where light traffic drives
over it (Class A/B), the projecting attachment piece
must be made flush with the ground level (see dia-
gram).
When installing in Class D areas, a concrete base plate
(height = 150 mm approx. 2 x 2 m) must be cast around
the attachment piece. A formwork plan and reinforce-
ment drawing can be provided on request.
When installed in groundwater, the chamber system
must be secured against buoyancy. Chamber LW 600
(up to 2.5 m) is resistant to groundwater, but has to be
secured against buoyancy by a negative-buoyancy ring
made of concrete (height approx. 30 cm, width approx.
30 cm) around the entire chamber above the perimeter
ring near base of the chamber
Check all connections for leaks
4. Installation and assembly
Installation without groundwater
Concrete
4-6 cm sand
fine gravel
30 cm Gravel
Soil
Before installation, care must always be taken that the pres-
4.1.1 Assembly of chamber system LW 600
sure pipes are at a frost-free depth after installation. In ad-
dition, the installation depth must be chosen in such a way
that the pump removal (pressure pipe connection) can be re-
ached from above, since chamber LW 600 cannot be ente-
red. For this reason, extensions must not be used.
The chamber system LW 600 is ready for installation and only
has to be fitted with the attachment piece. For this purpose,
the seal must be inserted into the chamber, greased, and the
attachment piece set to the required ground level (see sec-
tion 4.2.1). Care must be taken that the attachment piece
does not rest on the pressure pipe, but is shortened accor-
dingly.
The enclosed pressure pipe must be screwed to the pump(s)
and inserted with it into the chamber. The lugs on the base
are for fixing the pump in place. The pump is connected to
the pressure pipe via the red locking lever.
Installation of the outlet pressure pipe
33
Concrete
4-6 cm sand
fine gravel
30 cm Gravel
Soil
Soil
Pull the O-ring onto
the riser and use 2
screws to screw it to
the pump
(see sketch).