Electrical Connection - Pentair Jung Pumpen PKS 800 Instructions De Service

In some cases, the pump and the pumping medium may be hot
and could cause burns.
For installations in areas subject to explosion hazards, special
regulations apply!
DESCRIPTION
Electro-pneumatic level sensor (air bubbling and dynamic
pressure system) for connection to a Pentair Jung Pumpen
control for single or duplex units.
The level control in the collection chamber takes place with
two air sensors mounting one above the other, which are con-
nected per hose with two diaphragm pressure switches. The
switching levels are determined by the installation heights of
the two air sensors.
Base load operation
The upper air sensor determines the switch-on point of the
pump. When the sewage rises in the shaft, the air sensor sub-
merges and dynamic pressure results, which operates the
associated diaphragm pressure switch at a pressure of 100
mmWc via the hose - the pump is switched on.
The installation height of the lower air sensor determines the
switch-off point of the pump. The lower air sensor is connect-
ed to an air hose with the second diaphragm pressure switch.
When pumping water out of the shaft, the sewage level sinks
and also the air pressure at the second diaphragm pressure
switch, which switches off the pump at a pressure of 50 mmWc.
Because this air sensor is always full of water during normal
operation, it must be "forced vented" by the built-in air pump.
To extend the service life of the air pump. it is switched on only
when the lower sensor is not submerged more than approx.
100 mm. The running time is limited to approx. 16 sec. (with a
subsequent break of approx. 200 sec.).
High water alarm and peak load
If the turning on of the feeding pump does not cause the sew-
age level to sink within a certain period, the alarm is triggered
and, in duplex units, the backup pump is switched on. The
watchdog timing is adjustable in the range of approx. 15 to 240
seconds.
EMC
When used in connection with our standard controllers, and
when installed correctly and used for its intended purpose, the
circuit meets all protective requirements of the EMC Directive
2014/30/EU and is suitable for domestic and commercial use
when connected to the public power supply network. If con-
nected to an industrial power supply network within an indus-
trial facility, where the supply is provided from an in-house
high-voltage transformer, there may be insufficient immunity
to interference.
INSTALLATION
NOTICE! Do not install the circuit itself in explosion hazard are-
as or in the collection chamber!
The device is to be installed only in well ventilated rooms above
the backup level, where it can be easily inspected at any time.
The LM circuit generates mechanical vibrations and noise. Do
not directly mount the housing on well conductive walls, but
mount acoustically decoupled (for example by using a vibration
absorbing buffer).

ELECTRICAL CONNECTION

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.
NOTICE! Repairs and maintenance work on the control unit or
the pump must be carried out by a qualified electrician only!
Only make the mains connection on properly installed and
fused (10/16A) 230V power outlets.
Make the electrical connection to the pump control only with
the control voltage using a suitably insulated control cable.
The connection LM circuit - pump control (AD, AD...X, HighLo-
go1, BD, BD...X, HighLogo2) is to be made as per the following
table:
Terminal Function
7/ 8 Base load ON/OFF
9/10 Peak load ON/OFF
11/12 Alarm message
Installation of the air sensors
The switch-on level is determined by the installation heights
of the air sensors in the collection chamber. The cable is at-
tached differently depending on the pump chamber (see ap-
pendix). To fix the mounting heights, the cable glands on the
air hoses are tightened.
To prevent pockets of condensed moisture settling in the
hose, the entire length of the hoses should be laid at an uphill
gradient, rising continuously from the chamber to the control
unit! Water in the hose will cause the switching points to be
displaced. Also, if the hose is exposed to frost, the water could
freeze and cause the level sensor to break down!
The individual hoses may have a max. length of 20 m.
NOTICE! The hose connections to the sensor and pressure
switch must be absolutely airtight. Use a permanently elastic
sealant to seal these connections. Existing hoses must not be
extended due to the danger of leaks, but must be replaced with
hoses in one piece!
For easier identification, hang the air sensor with the blue air
hose upwards and connect this air hose on the diaphragm
pressure switch B2 of the LM circuit.
NOTICE! When hanging the air sensors, the following limits
must be strictly observed:
The lower edge of the lower air sensor must not be installed
lower than the top of the ring housing of the pump. If installed
lower, there is the danger that the pump draws in air before
switching off and no longer switches off.
Height distance between the two air sensors must be between
100 and max 900 mm.
ENGLISH
Control
21 / 23
24 / 25
27 / 28
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