Pentair Jung Pumpen US EX Série Instructions De Service page 11

WARNING!
In accordance with the explosion protection laws and regulati-
ons, these pumps should never be allowed to run dry or to ope-
rate in "snore" mode.
The pump must switch off when the water level sinks to the up-
per edge of the pump housing, at the very latest (see drawings).
This shut-down must be implemented via a separate switching
circuit. Dry running for servicing or inspection purposes may
only take place outside the potentially explosive area.
A correspondingly larger diameter pipe should be used for lon-
ger pressure pipelines to avoid pipe friction losses.
The pump housing can be permanently vented if necessary by
drilling a 6 mm hole in the pressure pipe above the pressure
outlet.
NOTICE! If the pump is faulty, part of the contents of the oil
reservoir could escape into the pumped media.
Dimensions of chamber
Single unit with pump base: 40 x 40 cm
Single unit with guide rail: 40 x 60 cm
Duplex unit: 60 x 60 cm
Example of installation with guide rail
Installation: Fix the coupling base firmly to the floor of the
collection chamber using wall plugs and then mount the guide
rails. Next, install the pressure pipe including the necessary
fittings, such as the non-return valve and shut-off valves.
Finally, fit the pump with the screwed-on coupling catch onto
the guide rail and lower it into place using a chain fixed to the
shackle.
A fixing facility for lifting gear should be provided above the
chamber opening at a sufficient height.
Example of installation with pump base:
Installation: The submersible pump is fitted with a 90° con-
nection and then lowered into the chamber or collecting pit
using a chain.
Level monitoring can be carried out using various systems.
Their specific characteristics and requirements can be found
in the relevant operating manuals.
SERVICING
Maintenance and inspection of this product must be carried
out in accordance with EN 12056-4 and EN 60074-19. To ensure
continued reliability of service, we recommend that you take
out a service contract.
WARNING!
Before carrying out any work: disconnect the pump and the
control unit from the mains and take action to ensure that no
one else can reconnect them to the power supply.
WARNING!
Check the plug and the mains cable for signs of mechanical
and chemical damage. Damaged or kinked cables must be re-
placed..
NOTICE! When using a chain to lift the pump, please observe
the relevant national regulations regarding accident preventi-
on. Lifting gear must be checked regularly by an expert in ac-
cordance with the legal regulations.
Oil check
The oil reservoir is sealed on the outside with a brass screw. In
order to check the mechanical seal, the oil, including any resi-
due, must be drained from the oil reservoir and collected in a
clean measuring container.
• If the oil is contaminated with water (milky), an oil change
must be carried out. Check again after a further 300 operat-
ing hours, but at the very latest after 6 months!
• However, if the oil is contaminated with both water and pol-
lutants, then not only the oil must be replaced, but the me-
chanical seal as well.
For monitoring the oil reservoir, it is also possible to retrofit the
ENGLISH
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