Pentair JUNG PUMPEN U3K/2 Originalbetriebsanleitung Seite 13

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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
ATTENTION! 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 venti-
lated 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 modi-
fication. 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 levered 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.
ENGLISH
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