Lorentz PSk3-7 User Manual

Pump System Sizing & Layout Diagrams 1918 Pump System Sizing & Layout Diagrams
EN EN6 Pump System Sizing & Layout
Diagrams
6.1 Pump System Sizing
To professionally size and install a water pumping
system, various variables need to be taken into
consideration depending on the pump type and
application:
Static head - Vertical height from the dynamic water
level to the highest point of water delivery.
Suction head (only applicable to non-submersible
pumps) - Vertical height from the water level to the
pump inlet where the water level is below the pump
inlet.
Pressure losses - Loss of water pressure due to
pipe length and friction caused by pipe material and
additional pipeline elements like elbows, valves.
For solar water pumping additionally local
irradiation levels are necessary to calculate the
available power during each day and the eect on
water output.
 Unauthorized changes and manufacturing
of spare parts – Any conversion of or changes
to the equipment may only be undertaken after
consulting the manufacturer. Original spare parts
and accessories authorized by the manufacturer
guarantee operational safety. Using non-
authorized parts may void any liability on part of
the manufacturer. There are no user-serviceable
parts inside the motor or the controller.
 Unauthorized operation – The operational safety
of the equipment delivered is only guaranteed
if the equipment is used in accordance with the
directions contained in this manual. Limits stated
in the data sheets may not be exceeded under any
circumstances.
RETAIN THESE
INSTRUCTIONS
FOR FUTURE USE!
To easily manage and consider the dierent
variables, LORENTZ strongly advises to size pump
systems with LORENTZ COMPASS, the solar pump
planning software.
COMPASS is the LORENTZ tool for designing,
planning and specifying solar pump systems. It is
available for download to all LORENTZ partners on
partnerNET.
COMPASS is a PC-based tool to simply specify solar
pumping systems in real time. It is based on NASA
weather data and uses precise algorithms for even
the most complex calculations.
By selecting the location from a list of more than
250,000 cities, entering the total dynamic head
(TDH) and the necessary amount of water per day
the software will automatically show suitable pump
systems and the necessary size of the PV generator.
Figure 1: COMPASS sizing
For more complex situations COMPASS oers
features from suction head calculation to pipe type
specic pressure loss calculation.
a
NOTE – Always ensure the values
used for sizing with COMPASS match the
conditions on site. Incorrect parameters
can lead to a wrong sizing report.

Lorentz PSk3-7 Specifications

General

Brand	Lorentz
Model	PSk3-7
Category	Inverter
Language	English