Controller Installation 2524 Pump System Sizing & Layout Diagrams
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7 Controller Installation
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WARNING – All electrical connections
must be performed by qualied experts
only.
WARNING – Do not dismantle the
controller while still connected to the
power supply! Before any installation,
maintenance or inspection activities wait
at least ve minutes after the power
supply has been disconnected from the
controller!
a
CAUTION – To avoid multiple starts of
the pump in twilight conditions, the Sun
Sensor module must be connected and
congured for all PSk3 pump systems.
Operating without a Sun Sensor module
can lead to increased wear or damage to
the pump. Such damage is excluded from
the warranty.
CAUTION – Never let the pump run
dry. Dry running will damage the pump
and void the warranty. LORENTZ requires
a dry run protection for every pump
system.
7.1 Controller Elements
Power on/o switch – The power switch is used to
start or stop the system and as a reset switch. It
does not work as power disconnect switch.
Indicator Lights – The six LED lights on the
front indicate dierent operational situations.
For a detailed explanation refer to chapter "10
Operating the Pump" on page 87
7.2 Controller Placement
The PSk3 controller is rated for outdoor use with an
ingress protection rating of IP66. This means that
inside electronics are protected against dust and
strong water splashes when properly installed. Keep
the controller cover sealed all times as the inside
electronics are sensitive to water, moisture, dust or
animals.
Electronic devices are most reliable when they are
protected from heat. Mount the controller where
it is shaded from the midday sun. An ideal location
is in permanent shade. If no shade is available, cut
a piece of sheet metal and bolt it behind the top of
the controller. Bend it over the controller to provide
shade. Make sure that the fan of the PSk3 is not
covered and forced cooling it possible.
This is especially important in extremely hot
locations. Extreme heat may trigger a thermal
function in the controller causing it to reduce the
power consumption or turn it o.
Place the controller close to the pump to keep the
motor cable short.
If the installation is exposed to lightning, we
recommend using a surge protector and put it inside
the controller.
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