Installation Overview; Electrical Installation - Lorentz PS Série Manuel D'installation Et De Fonctionnement

Installation Overview

This installation overview is provided to familiarize you with the typical steps that are taken when installing a solar water
pumping system. Your particular installation may require the steps to be done in a different order. You should read the whole
manual before making your first installation.
WARNING – This installation overview does not substitute the detailed instructions given in this
manual. Read and follow the manual carefully to ensure reliable operation and long life of the
product and to avoid danger to health and life.
1. PV and Controller Installation
Please follow manufacturer instructions for PV installation.
Every PV installation must be equipped with a PV discon-
nect switch. Suitable switches are available from LORENTZ.
Install the controller close to the PV array in a shaded
location to minimize cable length on the input side.

2. Electrical Installation

1. Pump wiring: The ECDrive must be connected to
the terminals L1, L2, L3 and GROUND. Observe rotation
direction.
2. Accessories wiring: Connect a well probe to terminals
1 and 2 (required), remote control switches to terminals 3,
4 and 5 (depending on type), flow meters to terminals 8
and 9 (with DataModule only), pressure sensors to termi-
nals 10 and 11 (with DataModule only).
3. DC input wiring: Connect the positive terminal of the
PV array to +, the negative terminal to −. Observe max.
input voltage. For battery systems install a jumper between
terminals 6 and 7.
4. Grounding: A protective earth connection must be
wired to either GND or , depending on the type of
controller.
3. Pump Installation
Submersible pumps: Lower the pump into the water
source with caution, use a safety rope.
Surface pumps: Install the surface pump on an adequate
foundation with sufficient pipe sizing to ensure efficient op-
eration. Fill the pump with clean water prior to starting it.
Please refer to "DC Disconnect Switch" on page 17 for
more information on the requirements the PV disconnect
must meet.
For detailed information refer to "7.6 Mounting, Space and
Ventilation Requirements" on page 20.
For detailed information refer to "7.7.1.2 Pump Wiring" on
page 27.
For detailed information refer to "7.7.1.3 Pump Accessories
Wiring" on page 28.
For detailed information refer to "7.7.1.4 Input Wiring for
Solar-direct Systems" on page 29.
For detailed information refer to "7.7.1.6 Grounding" on
page 31.
For detailed information refer to "8.3 Submersible Pumps"
on page 38.
Depending on your pump system, refer to "8.4 CS-F Sur-
face Pumps" on page 43 or "8.3 Submersible Pumps"
on page 38 for detailed information.
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