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10 Pump Installation
The pump dimensions and part list are available in
COMPASS.
10 1 Placement and Foundation
Rain and weather protection – The pump is equipped
with IPX4-type motor protection. If it is installed outside,
the pump must be protected from rain and direct sunlight.
This will increase the durability of your pump.
WARNING – Before starting any
work on the pump/motor, make sure
that the electricity supply has been
switched off and that it cannot be
accidentally switched on!
CAUTION – Before you start the
assembling, make sure that all parts
are delivered and have not been
damaged during transport
WARNING – PSk CS pumps must
NOT be submerged in water or
subjected to rain or dripping water
WARNING – If the pump is installed
in a humid area, effective ventila-
tion and aeration must be provided,
in order to prevent condensation
WARNING – When installing in very
small installation spaces the natural
cooling may be insufficient
Carefully consider the ventilation in
order not to exceed the maximum
environmental temperature
WARNING – The pump might heat
up in operation The pump must not
be installed on combustible
surfaces Strong incombustible
surfaces should be used e g
concrete or stone surfaces
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29, www.lorentz.de
All specifi cations and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may
differ from actual products depending on local market requirements and regulations.
Foundation – An arrow on the pump base shows the
direction of the flow of the fluid through the pump. It is
recommended to install the pump on a concrete foun-
dation. The foundation must be level and should be min.
approx. 1.5 times as heavy as the pump and is to absorb
vibration, shock and strain.
Connecting the pump to the foundation – Fastening
the pump to the foundation should be done exclusively by
means of properly sized bolts or threads (dowels) in order
to avoid any movement of the pump unit.
WARNING – The pump must be
mounted vertically
CS-G pumps are supplied along with a base plate that has
to be mounted to the bottom of the pump. Use only the
screws that are supplied with this base plate, do not install
this pump without this base plate.
Space – During installation, make sure that there is
enough space available to permit subsequent disassembly
of the motor unit. It is recommended to have at least 1m
free space above the pump.
Figure 16: Prevent air locks in pipes
18
10 2 Pipe sizing
LORENTZ pump systems are extremely efficient. It is impor-
tant to keep this efficiency throughout the entire system.
A main reason for loss of efficiency is pipe pressure losses.
Make sure that you have included the pipe pressure losses
during the sizing process of your system.
Consider a smart pipeline design from the beginning.
CAUTION – Consult COMPASS or a
pipe pressure sizing chart to
determine the correct size Oversize
the pipe line to reduce the pressure
drop
CAUTION – The length of the inlet
and of the outlet pipeline must be
considered for the calculation of the
pressure losses
CAUTION – Only run the pump when
it is completely prefilled with water
This means there must be no air
remaining in the pipes
CAUTION – Air locks must be
avoided at the inlet pipe line Avoid
sharp 90° elbows and sharp pipe
size adaptors
Figure 17: Avoid sharp 90° elbows and size adaptors
Sun. Water.
Life.
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