Pentair Jung Pumpen U3 K Instructions De Service page 13

Dimensions of chamber
Single installation with pump base: 40 x 40 cm
Single installation with guide rail system:
40 x 50 cm and Duplex installation: 50 x 50 cm
Example of installation with guide rail system
Installation
Fix the coupling base firmly to the floor of the
collection chamber using wall plugs and then
mount the guide rail. Next, install the pressure
pipe including the necessary fittings, such as
the non-return valve and shut-off valves.
Reseal the coupling catch at the pump and
tighten it until it is "hand tight". Finally, fit the
pump with the coupling catch onto the guide rail
and lower it into place using a chain fixed to the
handle.
Example of installation Duplex unit
ENGLISH
NOTICE! The floats of the level controller and
alarm system are installed so that they are freely
movable but not under the inlet. Please observe
the minimum distances. The controls may only
be installed in a dry and well ventilated room!
Flushing device
The pump can keep the intake section at the
bottom of the chamber clear of deposits to a
large extent if you carry out a small modifica-
tion. This reduces the performance of the pump
only insignificantly.
This modification is carried out as follows. De-
tach the foot strainer and carefully drill a hole
into the 3 markings with the ø 5 symbols. De-
burr the drillholes. When reattaching the foot
strainer, ensure that the new drill-holes are not
covered by the bars of the foot strainer. The U5
and U6 ranges provide markings on the housing
and the foot strainer to help you.
Low level pumping
Flooded areas can be pumped out leaving only
few mm of residual water without the need for
optional extras, U3K: 5 mm, U5K: 6 mm and U6K:
10 mm. To do so, the foot strainer must be lev-
ered off with a screwdriver. In the case of pumps
with an attached control, the float switch must
be locked in the ON position. It is not possible
therefore in low level pumping to operate the
pump in switching mode.
To make the pump operate, the drainage hose
must be emptied before each pumping run and
there must be a minimum water level available of,
for U3K: 40 mm, for U5K: 60 mm and for U6K: 90
mm.
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